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Joined: Jul 2014
Posts: 17
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OP
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Joined: Jul 2014
Posts: 17 |
I have an x-bolt with a 22 inch barrel that I have started reliading for. So far I can only get 2850 fps working up to max published loads of h4831 and h4350. Accuracy is excellent and I'm not arguing that 2850 fps isn't fast enough to do the job but I have a 7mm-08 that will shoot that fast so I'm not gaining anything with the 280 other than burning more powder. I am using 140 gr accubonds for bullets. I have heard that published load data tends to be conservative for the 280. I was wondering if anyone else has had issues getting 2900 fps with published data? I going to start working over max loads and keep an eye out for pressure signs. Is anyone else able to get 2900 fps with h4831 or h4350 with 140 gr bullets, particularly accubonds?
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Joined: Apr 2007
Posts: 3,362
Campfire Tracker
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Campfire Tracker
Joined: Apr 2007
Posts: 3,362 |
Only 3000 fps result I got was with Nosler Ballistic Tips and IMR 4350. No other 139/140-grainer beats 2800 fps in my BDL DM.
The reason(s) for published data and the .280 Rem are that it was introduced in non-bolt guns, and, the lawyers have generally pushed more conservative data in newer books.
If you know what you are doing (like many here) this particular envelope can be pushed in a bolt gun. The usual caveat always applies, and I won't insult you with a repetition.
The only hard-and-fast rule for hand loading is that most of the shortcuts can be very dangerous. Have fun and be safe.
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Joined: Jan 2007
Posts: 35,900
Campfire 'Bwana
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Campfire 'Bwana
Joined: Jan 2007
Posts: 35,900 |
Ran into this with IMR4831,which broke 3000 fps with 140's;but accuracy was lousy.IMR 4350 was accurate but slower and in the high 2800's.
The solution seemed to be a move to RL22 which gave the best combination of accuracy with velocities in the 3050 fps range.
This was with my barrel which was a 22" Shilen.
Much of this seems to vary with individual barrels,throating etc....much like what we see now and then from the 7mm RemMag.I have found the two cartridges behave much the same when it comes to delivered velocity,but the theme with the double based slow burners delivering somewhat more velocity seemed to hold true working with a 22" barrel of a M70 FW 280 as well.Velocities of 3050 or so were pretty routine with 140 gr Nosler Partitions, Sierra's and Bitterroots..
I think the cartridge can benefit from the use of powders a tad slower than even H4831 or 4350. With the caveat that I never used H4831 in the cartridge but others report good result with it.
If the OP is getting the same velocity in a 7/08 as with a 280 from the same length barrel the best guess would be that the 7/08 is being loaded hotter than the 280 since the 280 has greater powder capacity.
The 280 Remington is overbore.
The 7 Rem Mag is over bore.
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Joined: May 2007
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Campfire Tracker
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You can try Reloader 19,it seems to be very good for top velocity in the 280. I would use Noslers data with Reloader 19 and work up a load that gives you good accuracy and 3000 fps.
In the past I did the same thing with IMR 4350 using various 140 grain bullets.I had no problem getting 3000 fps from a number of 280s.
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Joined: Nov 2014
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Campfire Regular
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I use RL19 in my 26 inch barrel and get from 3000 to 3050 with 140 gr. I had a Ruger 22 inch and 2850 is about all it does. A deer doesn't know they difference between 2850 and 2900.
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Joined: Nov 2014
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Campfire Regular
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Another thing to remember is reloading books use 24 and 26 inch barrels for their speeds.
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Joined: May 2007
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I had no trouble getting 3000 fps with 140 grain bullets in two 280s that had 22 inch barrels.
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Joined: Jul 2014
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OP
New Member
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I know a lot of people have achieved 3000 fps with 140 grain bullets. I was just wondering if they were able to do so without going over max published loads.
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Joined: May 2007
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The loads that I used were taken directly from a reloading manual. The maximum published load for that powder is now about three grains less.
I am not telling you to do this but I used 57 grains of IMR 4350 in Remington cases with CCI primers.
The maximum published load in the same manual in the most modern edition is 54 grains.
At the time,I considered the load fairly conservative,Fred Huntington of RCBS fame had taken a 280 to Africa with Jack and Eleanor O'Connor. Jack wrote in a reloading guide at the time that Fred used 59 grains of IMR 4350 for a velocity of over 3100 fps,from a 22 inch barreled custom Husqvarna rifle.
Jim Carmichael later owned the same rifle,as far as I know he still has it.
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Joined: May 2005
Posts: 9,611
Campfire Outfitter
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Campfire Outfitter
Joined: May 2005
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RL19 is your huckleberry. powdr
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Joined: Jun 2001
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My .280 has no problem getting 3050+ fps with Barnes 140 gr. TSX bullets and IMR 4350.
I'd rather be a free man in my grave, than living as a puppet or a slave....
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Joined: Nov 2012
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Interesting that this thread popped up. I've got a 270 and 7-08. I've thought of getting a 280 or 280ai for my next savage build. The published data is interesting when comparing the 270 vs. the standard 280 in the same bullet weight (both are the same cartridge for all intents and purposes). Nosler shows both getting a 140gr to ~3,000fps with a number of powders. Most of those are the same powders. There's about one grain more of the same powder being loaded in the 270. Also note that Nosler has a 24" test barrel for the 270, and a 26" for the 280. By just looking at the data alone I've concluded that it's all but pointless to get the standard 280 with the other rounds that I already have. I might as well get the 280ai or another 7-08 as it will burn less powder which translates into shooting more bullets per dollar! Heck with Nosler's data a 7-08 can shoot to within 60fps of the standard 280, and both with 26" barrels. 60fps isn't much really.
Last edited by NTG; 04/09/15.
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Joined: Nov 2012
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Campfire Regular
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RL19 is your huckleberry. powdr Just looked at Alliants website. RL23 and RL26 show some really good speeds for the 270, 150btsp. It'd be nice if they start publishing some data for other calibers running these two powders.
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Campfire 'Bwana
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Campfire 'Bwana
Joined: Jun 2004
Posts: 34,268 Likes: 4 |
Cartridge : .280 Rem.
Bullet : .284, 140, Nosler AccuBond 59992
Cartridge O.A.L. L6: 3.330 inch or 84.58 mm
Barrel Length : 22.0 inch or 558.8 mm
Predicted Data for Indicated Charges of the Following Powders.
Matching Maximum Pressure: 65000 psi, or 448 MPa
or a maximum loading ratio or filling of 110 %
These calculations refer to your specified settings in QuickLOAD 'Cartridge Dimensions' window.
C A U T I O N : any load listed can result in a powder charge that falls below minimum suggested
loads or exceeds maximum suggested loads as presented in current handloading manuals. Understand
that all of the listed powders can be unsuitable for the given combination of cartridge, bullet
and gun. Actual load order can vary, depending upon lot-to-lot powder and component variations.
USE ONLY FOR COMPARISON !
Powder type Filling/Loading Ratio Charge Charge Vel. Prop.Burnt P max P muzz B_Time
% Grains Gramm fps % psi psi ms
--------------------------------- -----------------------------------------------------------------
Norma MRP 109.1 63.1 4.09 3154 99.0 65000 13793 1.013 !DANGEROUS LOAD-DO NOT USE!
IMR 7828 SSC 109.0 62.0 4.02 3111 96.4 65000 13412 1.006 !DANGEROUS LOAD-DO NOT USE!
Alliant Reloder-17 98.2 57.1 3.70 3111 100.0 65000 12309 1.015 !DANGEROUS LOAD-DO NOT USE!
Elcho 17 98.2 57.1 3.70 3111 100.0 65000 12309 1.015 !DANGEROUS LOAD-DO NOT USE!
Vihtavuori N560 110.0 62.3 4.04 3107 95.7 63183 13787 1.025 !DANGEROUS LOAD-DO NOT USE!
ADI AR 2213 109.8 61.5 3.99 3094 96.2 65000 13252 1.006 !DANGEROUS LOAD-DO NOT USE!
Accurate MAGPRO 110.0 64.8 4.20 3084 93.9 62614 13725 1.034 !DANGEROUS LOAD-DO NOT USE!
Ramshot Magnum 110.0 66.4 4.30 3081 98.3 64863 12820 1.010 !DANGEROUS LOAD-DO NOT USE!
Bofors RP5/NP ~approximation 110.0 61.6 3.99 3081 97.5 62467 13359 1.034 !DANGEROUS LOAD-DO NOT USE!
Raufoss RA15 110.0 61.6 3.99 3081 97.5 62467 13359 1.034 !DANGEROUS LOAD-DO NOT USE!
Alliant Reloder-22 110.0 61.6 3.99 3081 97.5 62467 13359 1.034 !DANGEROUS LOAD-DO NOT USE!
Somchem S365 105.1 57.9 3.75 3078 100.0 65000 11754 1.028 !DANGEROUS LOAD-DO NOT USE!
PB Clermont PCL 511 99.7 58.8 3.81 3074 99.5 65000 12585 1.022 !DANGEROUS LOAD-DO NOT USE!
Ramshot Hunter 103.0 58.9 3.82 3073 99.5 65000 12566 1.022 !DANGEROUS LOAD-DO NOT USE!
Alliant Reloder-19 107.5 59.6 3.86 3070 97.7 65000 12814 1.017 !DANGEROUS LOAD-DO NOT USE!
ADI AR 2209 106.8 58.8 3.81 3069 97.6 65000 12714 1.010 !DANGEROUS LOAD-DO NOT USE!
Hodgdon H414 97.3 57.0 3.69 3069 99.0 65000 12578 1.024 !DANGEROUS LOAD-DO NOT USE!
Winchester 760 97.3 57.0 3.69 3069 99.0 65000 12578 1.024 !DANGEROUS LOAD-DO NOT USE!
Bofors RP14 ~approximation 108.3 60.0 3.89 3063 97.7 65000 12713 1.017 !DANGEROUS LOAD-DO NOT USE!
Norma URP 102.6 56.2 3.64 3056 100.0 65000 12105 1.028 !DANGEROUS LOAD-DO NOT USE!
Bofors RP19 ~approximation 102.6 56.2 3.64 3056 100.0 65000 12102 1.028 !DANGEROUS LOAD-DO NOT USE!
Vihtavuori N550 99.6 56.4 3.66 3055 99.9 65000 12245 1.033 !DANGEROUS LOAD-DO NOT USE!
Accurate 4350 101.7 56.4 3.65 3052 100.0 65000 12081 1.043 !DANGEROUS LOAD-DO NOT USE!
Bofors RP4 ~approximation 105.2 58.3 3.78 3043 97.5 65000 12454 1.018 !DANGEROUS LOAD-DO NOT USE!
Raufoss RA4 105.2 58.3 3.78 3043 97.5 65000 12454 1.018 !DANGEROUS LOAD-DO NOT USE!
Norma 204 101.9 58.3 3.78 3043 97.5 65000 12454 1.018 !DANGEROUS LOAD-DO NOT USE!
IMR 4831 107.6 57.1 3.70 3037 100.0 65000 11848 1.036 !DANGEROUS LOAD-DO NOT USE!
SNPE Vectan SP 11 95.9 54.9 3.56 3036 100.0 65000 11651 1.028 !DANGEROUS LOAD-DO NOT USE!
Hodgdon H4831 SC 108.4 60.7 3.93 3034 95.6 65000 12466 1.015 !DANGEROUS LOAD-DO NOT USE!
Somchem S385 107.7 60.3 3.91 3034 98.5 65000 12297 1.035 !DANGEROUS LOAD-DO NOT USE!
Ramshot Big Game 92.8 54.8 3.55 3030 100.0 65000 11540 1.028 !DANGEROUS LOAD-DO NOT USE!
Hodgdon CFE223 87.6 54.1 3.51 3029 100.0 65000 11502 1.029 !DANGEROUS LOAD-DO NOT USE!
IMR 4895 92.6 51.3 3.32 3026 100.0 65000 11566 1.034 !DANGEROUS LOAD-DO NOT USE!
Bofors RP4 NT ~approximation 102.7 57.8 3.74 3024 98.8 65000 12092 1.030 !DANGEROUS LOAD-DO NOT USE!
Alliant Reloder-15 93.4 51.8 3.35 3019 100.0 65000 11532 1.034 !DANGEROUS LOAD-DO NOT USE!
Raufoss RA11 93.4 51.8 3.35 3019 100.0 65000 11532 1.034 !DANGEROUS LOAD-DO NOT USE!
Bofors RP11 ~approximation 93.4 51.8 3.35 3019 100.0 65000 11532 1.034 !DANGEROUS LOAD-DO NOT USE!
Hodgdon Hybrid 100V 105.3 56.4 3.66 3018 100.0 65000 11152 1.027 !DANGEROUS LOAD-DO NOT USE!
Winchester Supreme 780 105.6 61.7 4.00 3017 97.5 65000 12099 1.021 !DANGEROUS LOAD-DO NOT USE!
Norma 203B 93.8 52.0 3.37 3015 100.0 65000 11433 1.035 !DANGEROUS LOAD-DO NOT USE!
SNPE Vectan SP 12 110.0 65.1 4.22 3011 95.4 58261 13256 1.058 !DANGEROUS LOAD-DO NOT USE!
Hodgdon H380 94.6 53.6 3.47 3010 99.9 65000 11667 1.037 !DANGEROUS LOAD-DO NOT USE!
Lovex S070 102.0 55.9 3.62 3010 99.1 65000 11925 1.038 !DANGEROUS LOAD-DO NOT USE!
Rottweil R904 105.9 57.9 3.75 3009 96.5 65000 12085 1.021 !DANGEROUS LOAD-DO NOT USE!
Hodgdon H4350 104.7 56.8 3.68 3007 98.5 65000 11848 1.024 !DANGEROUS LOAD-DO NOT USE!
IMR 4350 102.8 56.7 3.67 3007 98.5 65000 11829 1.024 !DANGEROUS LOAD-DO NOT USE!
Hodgdon BL-C2 88.2 53.3 3.46 3006 100.0 65000 11252 1.039 !DANGEROUS LOAD-DO NOT USE!
PB Clermont PCL 517 110.0 65.1 4.22 3005 95.2 57926 13248 1.060 ! Near Maximum !
Rottweil R905 110.0 60.5 3.92 3005 95.0 60308 12750 1.053 !DANGEROUS LOAD-DO NOT USE!
Bofors RP3 95.1 53.3 3.45 3004 100.0 65000 11244 1.047 !DANGEROUS LOAD-DO NOT USE!
Norma 203 old 95.1 53.3 3.45 3004 100.0 65000 11244 1.047 !DANGEROUS LOAD-DO NOT USE!
Bofors RP7 NT ~approximation 96.6 54.0 3.50 3003 99.2 65000 11562 1.013 !DANGEROUS LOAD-DO NOT USE!
PB Clermont PCL 516 91.3 53.9 3.49 3003 99.9 65000 11531 1.029 !DANGEROUS LOAD-DO NOT USE!
IMR 4320 95.4 52.0 3.37 3002 100.0 65000 11112 1.021 !DANGEROUS LOAD-DO NOT USE!
Ramshot Wild Boar 88.7 52.5 3.40 3001 100.0 65000 11257 1.030 !DANGEROUS LOAD-DO NOT USE!
Hodgdon H4895 90.2 50.0 3.24 3001 100.0 65000 11175 1.034 !DANGEROUS LOAD-DO NOT USE!
ADI AR 2206H 90.6 50.2 3.25 3000 100.0 65000 11241 1.033 !DANGEROUS LOAD-DO NOT USE!
Winchester 748 85.8 51.2 3.32 2999 100.0 65000 10890 1.032 !DANGEROUS LOAD-DO NOT USE!
Rottweil R903 97.2 53.3 3.45 2999 100.0 65000 11159 1.047 !DANGEROUS LOAD-DO NOT USE!
Somchem S355 97.4 52.8 3.42 2994 100.0 65000 11165 1.041 !DANGEROUS LOAD-DO NOT USE!
Elcho TR140 - preliminary data 94.2 53.9 3.49 2994 99.9 65000 11373 1.034 !DANGEROUS LOAD-DO NOT USE!
SNPE Vectan SP 9 91.2 52.2 3.38 2993 100.0 65000 11147 1.030 !DANGEROUS LOAD-DO NOT USE!
Accurate 3100 110.0 61.0 3.95 2993 99.2 62608 11966 1.063 !DANGEROUS LOAD-DO NOT USE!
Ramshot TAC 86.7 51.8 3.36 2989 100.0 65000 11093 1.031 !DANGEROUS LOAD-DO NOT USE!
Lovex S065 100.8 54.7 3.54 2989 99.6 65000 11521 1.038 !DANGEROUS LOAD-DO NOT USE!
Winchester WXR 110.0 60.3 3.91 2987 96.2 56699 13043 1.082 ! Near Maximum !
Bofors RP15 110.0 60.3 3.91 2987 96.2 56699 13043 1.082 ! Near Maximum !
Rottweil R907 99.5 54.1 3.51 2986 98.5 65000 11680 1.033 !DANGEROUS LOAD-DO NOT USE!
Bofors RP7 99.5 54.1 3.51 2986 98.5 65000 11680 1.033 !DANGEROUS LOAD-DO NOT USE!
IMR 4007 SSC 96.4 54.2 3.51 2986 98.5 65000 11672 1.033 !DANGEROUS LOAD-DO NOT USE!
ADI AR 2208 95.9 51.6 3.34 2984 100.0 65000 11119 1.024 !DANGEROUS LOAD-DO NOT USE!
Hodgdon VARGET 96.2 51.6 3.34 2984 100.0 65000 11119 1.024 !DANGEROUS LOAD-DO NOT USE!
SNPE Vectan SP 7 89.4 53.1 3.44 2983 99.8 65000 11276 1.039 !DANGEROUS LOAD-DO NOT USE!
Bofors RP3 NT ~approximation 98.3 54.1 3.51 2981 99.6 65000 11287 1.024 !DANGEROUS LOAD-DO NOT USE!
PB Clermont PCL 507 87.9 50.8 3.29 2979 100.0 65000 10836 1.032 !DANGEROUS LOAD-DO NOT USE!
Somchem S341 89.4 53.3 3.45 2976 100.0 65000 10870 1.033 !DANGEROUS LOAD-DO NOT USE!
IMR 4064 96.8 50.7 3.28 2976 100.0 65000 10918 1.029 !DANGEROUS LOAD-DO NOT USE!
Somchem S321 86.2 51.4 3.33 2974 100.0 65000 10842 1.039 !DANGEROUS LOAD-DO NOT USE!
IMR 3031 92.8 48.1 3.11 2973 100.0 65000 10364 1.039 !DANGEROUS LOAD-DO NOT USE!
Vihtavuori N530 87.2 48.6 3.15 2972 100.0 65000 10716 1.031 !DANGEROUS LOAD-DO NOT USE!
Somchem S361 104.6 61.7 4.00 2972 95.6 65000 11779 1.032 !DANGEROUS LOAD-DO NOT USE!
Lovex S062 94.4 50.9 3.30 2970 100.0 65000 10741 1.042 !DANGEROUS LOAD-DO NOT USE!
Lovex D073.6 90.2 51.5 3.34 2970 100.0 65000 10579 1.050 !DANGEROUS LOAD-DO NOT USE!
Accurate 2520 88.1 51.5 3.34 2970 100.0 65000 10579 1.050 !DANGEROUS LOAD-DO NOT USE!
IMR 8208 XBR 89.2 49.4 3.20 2965 100.0 65000 10617 1.031 !DANGEROUS LOAD-DO NOT USE!
Accurate 4064 94.7 51.4 3.33 2963 100.0 65000 10563 1.067 !DANGEROUS LOAD-DO NOT USE!
Norma 201 87.7 49.7 3.22 2961 100.0 65000 10690 1.044 !DANGEROUS LOAD-DO NOT USE!
Rottweil R902 93.4 49.9 3.23 2952 100.0 65000 10562 1.045 !DANGEROUS LOAD-DO NOT USE!
Hodgdon H335 82.1 49.7 3.22 2952 100.0 65000 10361 1.036 !DANGEROUS LOAD-DO NOT USE!
Vihtavuori N150 102.5 53.6 3.47 2951 100.0 65000 10488 1.040 !DANGEROUS LOAD-DO NOT USE!
SNPE Vectan SP 10 81.8 48.4 3.14 2951 100.0 65000 10331 1.036 !DANGEROUS LOAD-DO NOT USE!
ADI AP 2214 110.0 63.3 4.10 2950 94.4 57291 12629 1.066 ! Near Maximum !
Vihtavuori N540 93.2 52.2 3.38 2950 100.0 65000 10490 1.040 !DANGEROUS LOAD-DO NOT USE!
PB Clermont PCL 508 (PCL223) 81.8 48.5 3.14 2950 100.0 65000 10318 1.036 !DANGEROUS LOAD-DO NOT USE!
Hodgdon H4831 110.0 59.2 3.84 2949 94.3 59340 12159 1.058 !DANGEROUS LOAD-DO NOT USE!
Norma 202 90.9 49.6 3.21 2949 100.0 65000 10338 1.041 !DANGEROUS LOAD-DO NOT USE!
IMR 7828 110.0 59.2 3.84 2945 94.0 54795 12809 1.088 ! Near Maximum !
Lovex D073.5 84.8 50.4 3.27 2942 100.0 65000 10340 1.051 !DANGEROUS LOAD-DO NOT USE!
Accurate 2460 84.6 50.4 3.27 2942 100.0 65000 10340 1.051 !DANGEROUS LOAD-DO NOT USE!
Bofors RP5 NT ~approximation 110.0 62.1 4.03 2940 92.0 58050 12466 1.065 !DANGEROUS LOAD-DO NOT USE!
Accurate 2495 89.1 48.3 3.13 2936 100.0 65000 10170 1.072 !DANGEROUS LOAD-DO NOT USE!
Accurate 2700 96.4 55.7 3.61 2936 98.3 65000 11007 1.037 !DANGEROUS LOAD-DO NOT USE!
Lovex D073.4 83.5 49.6 3.21 2934 100.0 65000 10199 1.047 !DANGEROUS LOAD-DO NOT USE!
Accurate 2230 82.7 49.6 3.21 2934 100.0 65000 10199 1.047 !DANGEROUS LOAD-DO NOT USE!
Rottweil R901 89.7 47.2 3.06 2930 100.0 65000 10182 1.052 !DANGEROUS LOAD-DO NOT USE!
Vihtavuori N165 110.0 60.3 3.91 2922 97.1 58529 11694 1.074 !DANGEROUS LOAD-DO NOT USE!
Vihtavuori N140 93.0 50.5 3.27 2922 100.0 65000 9953 1.040 !DANGEROUS LOAD-DO NOT USE!
Alliant Reloder-25 110.0 60.6 3.93 2922 98.4 51002 12877 1.127 ! Near Maximum !
Alliant AR-Comp 88.1 47.2 3.06 2912 100.0 65000 9614 1.047 !DANGEROUS LOAD-DO NOT USE!
Bofors RP11 TZ ~approximation 87.6 47.2 3.06 2912 100.0 65000 9615 1.047 !DANGEROUS LOAD-DO NOT USE!
Vihtavuori N135 98.8 49.6 3.22 2912 100.0 65000 9721 1.049 !DANGEROUS LOAD-DO NOT USE!
Vihtavuori N160 110.0 58.4 3.79 2906 95.2 59291 11551 1.067 !DANGEROUS LOAD-DO NOT USE!
Somchem S335 91.2 49.5 3.20 2882 100.0 65000 9586 1.048 !DANGEROUS LOAD-DO NOT USE!
Accurate 2015 87.1 46.2 2.99 2878 100.0 65000 9414 1.053 !DANGEROUS LOAD-DO NOT USE!
SF033 fl, russ. 5,45x39 81.1 45.9 2.97 2866 100.0 65000 9252 1.061 !DANGEROUS LOAD-DO NOT USE!
Norma 200 76.8 44.0 2.85 2861 100.0 65000 9273 1.060 !DANGEROUS LOAD-DO NOT USE!
Give a man a fish and he eats for a day. Give a man a welfare check, a forty ounce malt liquor, a crack pipe, an Obama phone, free health insurance. and some Air Jordan's and he votes Democrat for a lifetime.
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Joined: Nov 2014
Posts: 1,375
Campfire Regular
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Campfire Regular
Joined: Nov 2014
Posts: 1,375 |
Interesting that this thread popped up. I've got a 270 and 7-08. I've thought of getting a 280 or 280ai for my next savage build. The published data is interesting when comparing the 270 vs. the standard 280 in the same bullet weight (both are the same cartridge for all intents and purposes). Nosler shows both getting a 140gr to ~3,000fps with a number of powders. Most of those are the same powders. There's about one grain more of the same powder being loaded in the 270. Also note that Nosler has a 24" test barrel for the 270, and a 26" for the 280. By just looking at the data alone I've concluded that it's all but pointless to get the standard 280 with the other rounds that I already have. I might as well get the 280ai or another 7-08 as it will burn less powder which translates into shooting more bullets per dollar! Heck with Nosler's data a 7-08 can shoot to within 60fps of the standard 280, and both with 26" barrels. 60fps isn't much really. Exactly why I got a 7mm08 instead of another 280.
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Joined: Jan 2007
Posts: 35,900
Campfire 'Bwana
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Campfire 'Bwana
Joined: Jan 2007
Posts: 35,900 |
My .280 has no problem getting 3050+ fps with Barnes 140 gr. TSX bullets and IMR 4350. Yup and that's because it has the capacity to easily pull it off.. Reading QL and looking at loading manuals is fine to say a case with the capacity in the 40's(with bullets seated) is only 60-70 fps slower than a case that holds 60 gr....until you run into that darned chronograph and the barrel you use shrinks to 22"-24" vs the 26" in the manual;and is looser in the throat and internal dimensions than the pressure barrels used to work up manual data. So you load the smaller case with manual max loads and wonder where all the velocity went? Suddenly the larger case looks better because there's room to improve. Add on top that most home grown loaders are "pressure guessing" almost all of the time....despite what things like QL says. It's of some value of course....in looking at the QL data with R22, I understand why I stopped at 60-61 RL22 with the 140 many years ago for about 3000-3050.That was in the days before there was a QL . OTOH I never had a 22" barreled 7/08 that would break 2850 with a 140 without sweating real hard. This silly magic of smaller cases giving the same velocities as bigger cases exists in fairy tales. Like Santa Claus or the tooth fairy giving you something for nothing.  
The 280 Remington is overbore.
The 7 Rem Mag is over bore.
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Joined: Nov 2012
Posts: 2,623
Campfire Regular
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Campfire Regular
Joined: Nov 2012
Posts: 2,623 |
This silly magic of smaller cases giving the same velocities as bigger cases exists in fairy tales. Like Santa Claus or the tooth fairy giving you something for nothing. I agree, you can't get the same velocity. However, 60fps in real world applications is nothing. Heck, being more generous with the velocity spread at 80fps (2820-2900), the drop of my 139btsp is only 2.75" more at 80fps less AT 500 yards. My problem is I like speed, but efficiency too...
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Joined: Mar 2006
Posts: 20,901 Likes: 1
Campfire Ranger
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Campfire Ranger
Joined: Mar 2006
Posts: 20,901 Likes: 1 |
My 280's snort on H4831SC, IMR7828SSC, IMR4350.
I once tested 5 rifles chambered in 280 Remington on the same range trip with the same load. 3 of them wouldn't break 2700 fps. The other two ran around 2820 fps.
"I never thought I'd live to see the day that a U.S. president would raise an army to invade his own country."
Robert E. Lee
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Joined: Jun 2004
Posts: 34,268 Likes: 4
Campfire 'Bwana
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Campfire 'Bwana
Joined: Jun 2004
Posts: 34,268 Likes: 4 |
Cartridge : 7 mm-08 Ack. Imp. Rem.
Bullet : .284, 140, Nosler AccuBond 59992
Cartridge O.A.L. L6: 2.800 inch or 71.12 mm
Barrel Length : 22.0 inch or 558.8 mm
Predicted Data for Indicated Charges of the Following Powders.
Matching Maximum Pressure: 65000 psi, or 448 MPa
or a maximum loading ratio or filling of 113 %
These calculations refer to your specified settings in QuickLOAD 'Cartridge Dimensions' window.
C A U T I O N : any load listed can result in a powder charge that falls below minimum suggested
loads or exceeds maximum suggested loads as presented in current handloading manuals. Understand
that all of the listed powders can be unsuitable for the given combination of cartridge, bullet
and gun. Actual load order can vary, depending upon lot-to-lot powder and component variations.
USE ONLY FOR COMPARISON !
Powder type Filling/Loading Ratio Charge Charge Vel. Prop.Burnt P max P muzz B_Time
% Grains Gramm fps % psi psi ms
--------------------------------- -----------------------------------------------------------------
Elcho 17 103.9 51.3 3.33 3054 100.0 65000 10865 1.015 !DANGEROUS LOAD-DO NOT USE!
Alliant Reloder-17 103.9 51.3 3.33 3054 100.0 65000 10865 1.015 !DANGEROUS LOAD-DO NOT USE!
Somchem S365 111.6 52.3 3.39 3032 100.0 65000 10364 1.023 !DANGEROUS LOAD-DO NOT USE!
PB Clermont PCL 511 105.3 52.8 3.42 3010 98.7 65000 11010 1.024 !DANGEROUS LOAD-DO NOT USE!
Norma MRP 113.0 55.5 3.60 3009 97.1 60179 11849 1.049 !DANGEROUS LOAD-DO NOT USE!
Ramshot Hunter 108.8 52.9 3.43 3008 98.7 65000 10992 1.024 !DANGEROUS LOAD-DO NOT USE!
Winchester 760 102.8 51.2 3.32 3000 98.1 65000 10959 1.028 !DANGEROUS LOAD-DO NOT USE!
Hodgdon H414 102.8 51.2 3.32 3000 98.1 65000 10959 1.028 !DANGEROUS LOAD-DO NOT USE!
Norma URP 108.4 50.5 3.27 2995 99.7 65000 10639 1.031 !DANGEROUS LOAD-DO NOT USE!
Bofors RP19 ~approximation 108.4 50.5 3.27 2995 99.6 65000 10636 1.031 !DANGEROUS LOAD-DO NOT USE!
Vihtavuori N550 105.3 50.7 3.28 2994 99.6 65000 10768 1.036 !DANGEROUS LOAD-DO NOT USE!
Accurate 4350 107.7 50.7 3.29 2992 99.7 65000 10613 1.043 !DANGEROUS LOAD-DO NOT USE!
Alliant Reloder-19 113.0 53.2 3.45 2986 96.3 64382 11076 1.026 !DANGEROUS LOAD-DO NOT USE!
ADI AR 2209 112.1 52.5 3.40 2984 96.1 65000 10969 1.018 !DANGEROUS LOAD-DO NOT USE!
SNPE Vectan SP 11 101.4 49.3 3.19 2977 100.0 65000 10272 1.031 !DANGEROUS LOAD-DO NOT USE!
Hodgdon CFE223 92.6 48.6 3.15 2972 100.0 65000 10139 1.033 !DANGEROUS LOAD-DO NOT USE!
Ramshot Big Game 98.1 49.2 3.19 2971 100.0 65000 10166 1.032 !DANGEROUS LOAD-DO NOT USE!
IMR 7828 SSC 113.0 54.7 3.54 2969 93.6 61926 11356 1.036 !DANGEROUS LOAD-DO NOT USE!
Raufoss RA4 110.7 52.1 3.38 2966 96.0 65000 10762 1.024 !DANGEROUS LOAD-DO NOT USE!
Bofors RP4 ~approximation 110.7 52.1 3.38 2966 96.0 65000 10762 1.024 !DANGEROUS LOAD-DO NOT USE!
Norma 204 107.2 52.1 3.38 2966 96.0 65000 10762 1.024 !DANGEROUS LOAD-DO NOT USE!
IMR 4895 97.8 46.0 2.98 2965 100.0 65000 10187 1.041 !DANGEROUS LOAD-DO NOT USE!
Hodgdon Hybrid 100V 111.3 50.7 3.29 2961 100.0 65000 9810 1.028 !DANGEROUS LOAD-DO NOT USE!
IMR 4831 113.0 51.0 3.30 2957 99.6 63430 10378 1.049 !DANGEROUS LOAD-DO NOT USE!
Bofors RP14 ~approximation 113.0 53.2 3.45 2956 95.9 62863 10919 1.038 !DANGEROUS LOAD-DO NOT USE!
Alliant Reloder-15 98.6 46.4 3.01 2955 99.9 65000 10142 1.041 !DANGEROUS LOAD-DO NOT USE!
Bofors RP11 ~approximation 98.6 46.4 3.01 2955 99.9 65000 10142 1.041 !DANGEROUS LOAD-DO NOT USE!
Raufoss RA11 98.6 46.4 3.01 2955 99.9 65000 10142 1.041 !DANGEROUS LOAD-DO NOT USE!
Norma 203B 99.1 46.7 3.02 2954 100.0 65000 10067 1.042 !DANGEROUS LOAD-DO NOT USE!
Bofors RP4 NT ~approximation 108.2 51.7 3.35 2951 97.7 65000 10503 1.035 !DANGEROUS LOAD-DO NOT USE!
Hodgdon BL-C2 93.2 47.9 3.10 2950 100.0 65000 9915 1.044 !DANGEROUS LOAD-DO NOT USE!
Norma 203 old 100.5 47.8 3.10 2947 100.0 65000 9904 1.051 !DANGEROUS LOAD-DO NOT USE!
Bofors RP3 100.5 47.8 3.10 2947 100.0 65000 9904 1.051 !DANGEROUS LOAD-DO NOT USE!
Somchem S385 113.0 53.8 3.49 2945 97.1 63610 10633 1.048 !DANGEROUS LOAD-DO NOT USE!
Winchester 748 90.7 46.0 2.98 2943 100.0 65000 9570 1.038 !DANGEROUS LOAD-DO NOT USE!
Hodgdon H380 99.8 48.0 3.11 2943 99.4 65000 10214 1.044 !DANGEROUS LOAD-DO NOT USE!
Rottweil R903 102.8 47.9 3.10 2941 100.0 65000 9822 1.051 !DANGEROUS LOAD-DO NOT USE!
Hodgdon H4895 95.1 44.8 2.90 2938 100.0 65000 9827 1.042 !DANGEROUS LOAD-DO NOT USE!
Ramshot Wild Boar 93.5 47.1 3.05 2938 100.0 65000 9905 1.038 !DANGEROUS LOAD-DO NOT USE!
Lovex S070 107.5 50.1 3.24 2938 98.1 65000 10375 1.045 !DANGEROUS LOAD-DO NOT USE!
IMR 4320 100.5 46.6 3.02 2937 100.0 65000 9762 1.028 !DANGEROUS LOAD-DO NOT USE!
ADI AR 2206H 95.5 45.0 2.91 2936 100.0 65000 9883 1.041 !DANGEROUS LOAD-DO NOT USE!
Winchester Supreme 780 110.9 55.1 3.57 2935 95.9 65000 10426 1.026 !DANGEROUS LOAD-DO NOT USE!
PB Clermont PCL 516 96.2 48.2 3.13 2934 99.4 65000 10088 1.037 !DANGEROUS LOAD-DO NOT USE!
Somchem S355 102.8 47.3 3.07 2934 100.0 65000 9829 1.048 !DANGEROUS LOAD-DO NOT USE!
Hodgdon H4350 110.2 50.8 3.29 2931 97.3 65000 10264 1.032 !DANGEROUS LOAD-DO NOT USE!
IMR 4350 108.2 50.7 3.28 2931 97.4 65000 10252 1.032 !DANGEROUS LOAD-DO NOT USE!
Vihtavuori N560 113.0 54.4 3.52 2930 92.3 57220 11551 1.075 ! Near Maximum !
SNPE Vectan SP 9 96.1 46.7 3.03 2929 100.0 65000 9803 1.038 !DANGEROUS LOAD-DO NOT USE!
ADI AR 2213 113.0 53.8 3.49 2929 93.1 60399 11134 1.049 !DANGEROUS LOAD-DO NOT USE!
Rottweil R904 111.3 51.7 3.35 2927 94.8 65000 10394 1.029 !DANGEROUS LOAD-DO NOT USE!
Elcho TR140 - preliminary data 99.3 48.3 3.13 2926 99.5 65000 9949 1.041 !DANGEROUS LOAD-DO NOT USE!
Bofors RP7 NT ~approximation 101.5 48.2 3.12 2925 98.2 65000 10029 1.023 !DANGEROUS LOAD-DO NOT USE!
Ramshot TAC 91.4 46.4 3.01 2925 100.0 65000 9755 1.040 !DANGEROUS LOAD-DO NOT USE!
IMR 3031 98.3 43.3 2.80 2923 100.0 65000 9092 1.044 !DANGEROUS LOAD-DO NOT USE!
Hodgdon H4831 SC 113.0 53.8 3.49 2922 93.2 63379 10608 1.034 !DANGEROUS LOAD-DO NOT USE!
PB Clermont PCL 507 92.6 45.5 2.95 2918 100.0 65000 9520 1.041 !DANGEROUS LOAD-DO NOT USE!
Lovex S065 106.1 48.9 3.17 2918 98.9 65000 10049 1.047 !DANGEROUS LOAD-DO NOT USE!
Lovex D073.6 95.4 46.3 3.00 2916 100.0 65000 9292 1.055 !DANGEROUS LOAD-DO NOT USE!
Accurate 2520 93.2 46.3 3.00 2916 100.0 65000 9292 1.055 !DANGEROUS LOAD-DO NOT USE!
Somchem S321 90.8 46.0 2.98 2914 100.0 65000 9532 1.047 !DANGEROUS LOAD-DO NOT USE!
Accurate 4064 100.4 46.3 3.00 2914 100.0 65000 9290 1.071 !DANGEROUS LOAD-DO NOT USE!
SNPE Vectan SP 7 94.1 47.6 3.08 2913 99.4 65000 9847 1.047 !DANGEROUS LOAD-DO NOT USE!
Somchem S341 94.3 47.8 3.10 2912 100.0 65000 9547 1.040 !DANGEROUS LOAD-DO NOT USE!
Raufoss RA15 113.0 53.8 3.49 2911 94.6 56292 11287 1.085 ! Near Maximum !
Bofors RP5/NP ~approximation 113.0 53.8 3.49 2911 94.6 56292 11287 1.085 ! Near Maximum !
Alliant Reloder-22 113.0 53.8 3.49 2911 94.6 56292 11287 1.085 ! Near Maximum !
Lovex S062 99.6 45.6 2.96 2909 100.0 65000 9435 1.050 !DANGEROUS LOAD-DO NOT USE!
Rottweil R907 104.6 48.3 3.13 2909 97.4 65000 10113 1.043 !DANGEROUS LOAD-DO NOT USE!
Bofors RP7 104.6 48.3 3.13 2909 97.4 65000 10113 1.043 !DANGEROUS LOAD-DO NOT USE!
IMR 4064 101.9 45.3 2.94 2908 99.9 65000 9571 1.039 !DANGEROUS LOAD-DO NOT USE!
IMR 4007 SSC 101.3 48.4 3.13 2908 97.4 65000 10105 1.043 !DANGEROUS LOAD-DO NOT USE!
Bofors RP3 NT ~approximation 103.3 48.3 3.13 2907 98.9 65000 9825 1.033 !DANGEROUS LOAD-DO NOT USE!
Ramshot Magnum 113.0 58.0 3.76 2901 95.3 59210 10849 1.059 ! Near Maximum !
Accurate MAGPRO 113.0 56.6 3.67 2901 90.0 56311 11423 1.086 ! Near Maximum !
Give a man a fish and he eats for a day. Give a man a welfare check, a forty ounce malt liquor, a crack pipe, an Obama phone, free health insurance. and some Air Jordan's and he votes Democrat for a lifetime.
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Joined: Dec 2014
Posts: 120
Campfire Member
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Campfire Member
Joined: Dec 2014
Posts: 120 |
I have an x-bolt with a 22 inch barrel that I have started reliading for. So far I can only get 2850 fps working up to max published loads of h4831 and h4350.
The .280 case capacity is nearly identical [perhaps 1-2 gr. greater--depending on brand] to the .284 WIN. (Which is, in itself, of the same capacity as the .30-06 case) Try some loads for the .284 and you might find what you are seeking. The .280 was/is downloaded by the factories in [deference to] the autoloaders for which it was initially introduced. Which, by the way, makes no sense at all, because the .270 Win. was also chambered in those same autoloaders at somewhat higher pressure. Still makes no sense at all. Try the .284 load data. WILL
DON'T SWEAT THE SMALL STUFF:......IT'S ALL SMALL STUFF!
D@MN; I miss my meds.
THE WINDS OF TYRANNY HAVE SHIFTED. BETTER TIMES AHEAD.
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