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Joined: Nov 2015
Posts: 513 Likes: 4
Campfire Regular
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OP
Campfire Regular
Joined: Nov 2015
Posts: 513 Likes: 4 |
Is there anyone that could help me with a quick load estimate of velocity from a 12” barrel 308 shooting a 110 Barnes tac-tx? I’m guessing something like a starting load 4895 is going to have me in the velocity range I’m looking for.
Trying to determine the feasibility of a project. Thanks for any help.
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Joined: Jun 2004
Posts: 44,933 Likes: 23
Campfire 'Bwana
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Campfire 'Bwana
Joined: Jun 2004
Posts: 44,933 Likes: 23 |
Give Hodgdon's 15" barrel pistol data a look, then knock off 30 fps per inch.
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Joined: Feb 2003
Posts: 8,865 Likes: 3
Campfire Outfitter
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Campfire Outfitter
Joined: Feb 2003
Posts: 8,865 Likes: 3 |
Give Hodgdon's 15" barrel pistol data a look, then knock off 30 fps per inch. ^^^^ this.
Adversity doesn't build character, it reveals it.
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Joined: May 2005
Posts: 1,870 Likes: 2
Campfire Regular
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Campfire Regular
Joined: May 2005
Posts: 1,870 Likes: 2 |
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Joined: May 2005
Posts: 1,870 Likes: 2
Campfire Regular
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Campfire Regular
Joined: May 2005
Posts: 1,870 Likes: 2 |
At 86.5% total burn with H4895, you're going to have a pretty good powder flame, done set the woods on fire. 
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Joined: May 2005
Posts: 1,870 Likes: 2
Campfire Regular
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Campfire Regular
Joined: May 2005
Posts: 1,870 Likes: 2 |
Cartridge : .308 Win. (SAAMI)
Bullet : .308, 110, Barnes TAC-TX 30358
Useable Case Capaci: 48.791 grain H2O = 3.168 cm³
Cartridge O.A.L. L6: 2.750 inch = 69.85 mm
Barrel Length : 12.0 inch = 304.8 mm
Predicted Data for Indicated Charges of the Following Powders.
Matching Maximum Pressure: 54250 psi, or 374 MPa
or a maximum loading ratio or filling of 100 %
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 !
67 loads produced a Loading Ratio below user-defined minimum of 70%. These powders have been skipped.
Powder type Filling/Loading Ratio Charge Charge Vel. Prop.Burnt P max P muzz B_Time
% Grains Gramm fps % psi psi ms
--------------------------------- -----------------------------------------------------------------
Nitrochemie A/S 0300 94.1 43.4 2.81 2749 96.6 54250 16237 0.654 ! Near Maximum !
SF033 fl, russ. 5,45x39 97.6 44.9 2.91 2746 99.0 54250 16013 0.664 ! Near Maximum !
ADI AR 2219 96.6 44.9 2.91 2723 93.0 54250 15906 0.648 ! Near Maximum !
Hodgdon H335 96.9 47.6 3.08 2712 91.4 54250 15950 0.652 ! Near Maximum !
Alliant Reloder-10x *C 100.0 42.4 2.75 2710 96.7 54140 15670 0.664 ! Near Maximum !
SNPE Vectan SP 10 96.4 46.3 3.00 2707 91.4 54250 15934 0.656 ! Near Maximum !
PB Clermont PCL 508 *C (PCL223) 96.3 46.4 3.01 2706 91.4 54250 15914 0.656 ! Near Maximum !
ADI AR 2207 94.2 39.6 2.57 2700 99.5 54250 14827 0.660 ! Near Maximum !
Norma 200 *C 96.2 42.3 2.74 2698 97.5 54250 15552 0.677 ! Near Maximum !
IMR 4198 98.7 39.8 2.58 2695 97.9 54250 14706 0.645 ! Near Maximum !
Winchester 296 73.7 35.6 2.31 2690 99.8 54250 14712 0.669 ! Near Maximum !
ReloadSwiss RS 40 100.0 45.9 2.97 2688 90.0 54178 15577 0.655 ! Near Maximum !
Alliant Reloder TS 11 *C *T 95.2 41.1 2.67 2685 98.0 54250 14707 0.653 ! Near Maximum !
Bofors RP 705 *C *T approximation 95.2 41.1 2.67 2685 98.0 54250 14707 0.653 ! Near Maximum !
Accurate 2460 100.0 48.4 3.14 2673 89.0 53842 15671 0.671 ! Near Maximum !
Lovex D073.4 98.5 47.5 3.08 2672 89.0 54250 15415 0.665 ! Near Maximum !
Shooters World AR Plus 98.5 47.5 3.08 2672 89.0 54250 15415 0.665 ! Near Maximum !
ReloadSwiss RS 36 88.5 38.7 2.51 2671 98.8 54250 14347 0.656 ! Near Maximum !
Vihtavuori N120 *C 96.7 39.7 2.57 2671 99.9 54250 13949 0.659 ! Near Maximum !
Accurate 5744 81.6 35.1 2.27 2669 97.8 54250 14454 0.647 ! Near Maximum !
Shooters World Buffalo Rifle 83.5 35.1 2.27 2669 97.8 54250 14454 0.647 ! Near Maximum !
Lovex D060 83.5 35.1 2.27 2669 97.8 54250 14454 0.647 ! Near Maximum !
Alliant Reloder-7 93.2 40.6 2.63 2669 97.4 54250 14718 0.664 ! Near Maximum !
Vihtavuori N125 *C 91.1 38.1 2.47 2665 99.9 54250 13892 0.660 ! Near Maximum !
ReloadSwiss RS 30 89.1 35.3 2.29 2665 100.0 54250 13201 0.655 ! Near Maximum !
Lovex D073.5 100.0 48.3 3.13 2663 88.8 53255 15606 0.675 ! Near Maximum !
Hodgdon H4227 89.1 36.7 2.38 2662 99.5 54250 13871 0.649 ! Near Maximum !
Winchester 748 100.0 48.4 3.14 2662 87.1 50446 15955 0.671
Accurate 1680 85.8 40.3 2.61 2661 94.7 54250 14624 0.653 ! Near Maximum !
Shooters World Socom 85.8 40.3 2.61 2661 94.7 54250 14624 0.653 ! Near Maximum !
Lovex D063-01 85.8 40.3 2.61 2661 94.7 54250 14624 0.653 ! Near Maximum !
ADI AR 2210 96.6 44.9 2.91 2660 89.3 54250 15054 0.656 ! Near Maximum !
Accurate 2230 99.3 48.4 3.13 2660 86.6 54250 15231 0.661 ! Near Maximum !
Kazan Sunar 308W 97.3 42.8 2.77 2655 96.2 54250 14531 0.661 ! Near Maximum !
Shooters World Blackout 78.5 36.9 2.39 2652 97.9 54250 13986 0.646 ! Near Maximum !
Lovex D063 78.5 36.9 2.39 2652 97.9 54250 13986 0.646 ! Near Maximum !
ADI BM2 94.3 45.2 2.93 2651 89.4 54250 14903 0.657 ! Near Maximum !
Nitrochemie A/S 0200 80.6 36.3 2.35 2650 99.7 54250 13789 0.662 ! Near Maximum !
Bofors RP1 NT *C ~approximation 94.1 41.0 2.66 2648 92.7 54250 14399 0.648 ! Near Maximum !
IMR 4227 88.3 36.4 2.36 2646 99.0 54250 13688 0.648 ! Near Maximum !
Shooters World Tactical Rifle 97.1 46.5 3.02 2645 87.1 54250 14789 0.656 ! Near Maximum !
Somchem S321 100.0 48.4 3.14 2645 87.0 51553 15600 0.675
Hodgdon H4198 94.6 40.0 2.59 2645 93.2 54250 14266 0.649 ! Near Maximum !
Hodgdon H322 100.0 43.7 2.83 2641 91.5 49716 15370 0.676
Hodgdon H110 75.0 36.2 2.34 2638 100.0 54250 13459 0.669 ! Near Maximum !
Lovex S053 89.7 36.2 2.35 2636 100.0 54250 13219 0.659 ! Near Maximum !
Accurate No.11 FS 79.0 36.7 2.38 2634 99.7 54250 13379 0.656 ! Near Maximum !
Hodgdon Lil'Gun 73.7 34.5 2.23 2628 100.0 54250 12800 0.673 ! Near Maximum !
Alliant Reloder-12 100.0 45.9 2.97 2628 91.9 50774 14972 0.673
Ramshot X-Terminator *C 100.0 48.0 3.11 2627 84.9 53094 14907 0.665 ! Near Maximum !
Vihtavuori N530 *C 100.0 45.2 2.93 2620 86.4 50365 15210 0.677
Hodgdon CFE BLK *C 93.1 44.4 2.88 2617 88.3 54250 14305 0.659 ! Near Maximum !
Rottweil R910 77.0 32.0 2.07 2609 100.0 54250 12015 0.659 ! Near Maximum !
Accurate 2015 100.0 43.0 2.79 2606 94.3 49266 14960 0.700
Vihtavuori N130 *C 100.0 42.0 2.72 2603 95.7 50649 14324 0.682
Bofors RP11 TZ *C *T approximation 100.0 43.8 2.84 2600 95.4 44852 15591 0.710
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Joined: Jan 2021
Posts: 58 Likes: 1
Campfire Greenhorn
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Campfire Greenhorn
Joined: Jan 2021
Posts: 58 Likes: 1 |
I use 16" barrels all the time with my .308s and I can say from experience that 4895 is way too slow, you need a faster powder for a barrel under 18" to get the best performance. My current powder is AR-Comp.
Let me correct myself, I just ran the numbers in QuickLoad for IMR 4895 and it works well in a 12" barrel. It looks very promising with a slightly compressed load of 46 grains in case trimmed to 2.009" and a COAL of 2.75" using a Lapua case. Lapua cases are expensive but they typically have larger capacity than most other brands.
My estimates are that you'll see something in the neighborhood of 2450 to 2500 FPS at the muzzle.
As is typical, start a grain or two low and work your way up.
Last edited by montram; 01/29/24.
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Joined: Jun 2018
Posts: 673 Likes: 2
Campfire Regular
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Campfire Regular
Joined: Jun 2018
Posts: 673 Likes: 2 |
Not the same length, but my CTR 20" 308 will run 155 scenars at 2840 with varget. I was told that I could get more velocity from CFE-223, I just haven't tried it yet.
Last edited by SDupontJr; 01/29/24.
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Joined: Jan 2021
Posts: 58 Likes: 1
Campfire Greenhorn
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Campfire Greenhorn
Joined: Jan 2021
Posts: 58 Likes: 1 |
I don't base my choices on muzzle velocity, I look for loads that produce the tightest groups while keeping the muzzle velocity as high as possible. As a result, I usually don't have the highest velocity but I get very consistent groups that hold less than an MOA out of most of my rifles.
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Joined: Nov 2015
Posts: 513 Likes: 4
Campfire Regular
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OP
Campfire Regular
Joined: Nov 2015
Posts: 513 Likes: 4 |
I appreciate the help offered in this thread. I was more concerned with velocity potentially being too high for what I was wanting to do. The velocity seems to be where I would want it though.
I think my real issue is going to be just too much unburned powder at the end of the barrel. Looking now into how something like 30 BR may do in that barrel length. Trying to see what I can accomplish with a shorter barrel while using a .473 case head action.
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