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Joined: Nov 2005
Posts: 10,285 Likes: 1
Campfire Outfitter
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OP
Campfire Outfitter
Joined: Nov 2005
Posts: 10,285 Likes: 1 |
In load development I found H322 the most accurate with a 68 grain Hornady match in the 223. It turned out as 23 grains in the Windham Varmint Exterminator and 22.7 grains in the Savage 12 FV.
I have 100 cases set aside for the Savage, only short sizing those. I loaded up 30 of the 68 grain load and then was going to switch to H335 for the 55's, which are both SP's and V-MAX. I got to thinking, back in the day I shot both a Rem 788 and a Rem 722 in 222 Remington. H322 worked very well in both of them even though for some reason the 788 liked a case stuffed with 748. But only by a very slight margin. So I said "what the hell" and loaded both 55's with 23 grains of H322. I think today I'm going to load 50 grain Hornady SX and 40 grain Nosler BT's with the same powder.
We shall see what we shall see.
On another note, looking back, with that 722 and 788. Back then you had one choice in stock material, wood. I did something you only saw in custom rifles back then, I pillar bedded both. You pretty much had to make your own pillars but I had access to a lathe so I made them from 316 stainless rod. I fit them exactly to the bottom contour of the actions. Then I glass bedded both to 1-1/4" ahead of the receiver ring.
I had a Tasco scope on each. These were not your typical Tasco's. They were variable power and had a static wire you used for range finding. There was a scale on the tube that told you how far, three sets of graduations as I recall. They had replaceable drums that you would put on the turret and a window you could see them through. I do not remember what that scope was called.
Both rifles had sporter weight barrels. Doesn't really make a difference with woodchucks as you never shoot them fast enough to get hot. I killed truck loads of woodchucks with those rifles, some out to 400+ yards. Of course back then we weren't overrun with coyotes and we had truck loads to shoot.
Farmers loved me back then, one even tried to set me up with his daughter. He would say, " Take her out with you." I did, problem being that unlike the story of the beautiful farmers daughter she was butt-fuggin-ugly. I had to talk about my fake girlfriend rather than saying, " No way, you're butt-fugging-ugly."
Last edited by Armednfree; 02/29/20.
The older I become the more I am convinced that the voice of honor in a man's heart is the voice of GOD.
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Joined: Jul 2015
Posts: 14,747 Likes: 2
Campfire Outfitter
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Campfire Outfitter
Joined: Jul 2015
Posts: 14,747 Likes: 2 |
Unless they changed the 50SX, I would not run them in anything faster than a 10" twist. Even a 9" twist will SMOKE them!
Politics is War by Other Means
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Joined: Apr 2019
Posts: 6,051 Likes: 2
Campfire Tracker
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Campfire Tracker
Joined: Apr 2019
Posts: 6,051 Likes: 2 |
What velocity were you getting with 332 and the 68 grainers? What barrel length? TIA
Tarquin
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Joined: Nov 2011
Posts: 31,072 Likes: 4
Campfire 'Bwana
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Campfire 'Bwana
Joined: Nov 2011
Posts: 31,072 Likes: 4 |
Back in the day H322 won a lot of benchrest matches in the .222 Rem. Here's what it looks like in a 16" barrel and 5.56mm chamber:
Cartridge : 5.56 mm NATO - 5.56 x 45 mm
Bullet : .224, 68, Hornady BTHP M 2278
Useable Case Capaci: 24.107 grain H2O = 1.565 cm³
Cartridge O.A.L. L6: 2.260 inch = 57.40 mm
Barrel Length : 16.0 inch = 406.4 mm
Powder : Hodgdon H322
Predicted data by increasing and decreasing the given charge,
incremented in steps of 2.273% of nominal charge.
CAUTION: Figures exceed maximum and minimum recommended loads !
Step Fill. Charge Vel. Energy Pmax Pmuz Prop.Burnt B_Time
% % Grains fps ft.lbs psi psi % ms
-22.7 79 17.00 2139 691 27729 7912 87.5 1.130
-20.5 81 17.50 2201 731 29827 8227 89.0 1.097
-18.2 83 18.00 2263 773 32083 8534 90.5 1.065
-15.9 86 18.50 2325 816 34510 8831 91.8 1.034
-13.6 88 19.00 2387 860 37123 9118 93.1 1.004
-11.4 90 19.50 2450 906 39937 9392 94.3 0.969
-09.1 93 20.00 2512 953 42972 9652 95.4 0.937
-06.8 95 20.50 2574 1001 46243 9897 96.3 0.906
-04.5 97 21.00 2637 1050 49780 10125 97.2 0.876
-02.3 100 21.50 2699 1100 53602 10335 97.9 0.847 ! Near Maximum !
+00.0 102 22.00 2761 1151 57738 10525 98.6 0.819 ! Near Maximum !
+02.3 104 22.50 2822 1203 62202 10695 99.1 0.793 !DANGEROUS LOAD-DO NOT USE!
+04.5 107 23.00 2884 1256 67008 10842 99.5 0.767 !DANGEROUS LOAD-DO NOT USE!
+06.8 109 23.50 2945 1310 72213 10967 99.8 0.743 !DANGEROUS LOAD-DO NOT USE!
+09.1 111 24.00 3006 1364 77862 11066 100.0 0.719 !DANGEROUS LOAD-DO NOT USE!
+11.4 114 24.50 3066 1420 84001 11141 100.0 0.696 !DANGEROUS LOAD-DO NOT USE!
Results caused by ± 3% powder lot-to-lot burning rate variation using nominal charge
Data for burning rate increased by 3% relative to nominal value:
+Ba 102 22.00 2802 1186 61093 10502 99.4 0.800 ! Near Maximum !
Data for burning rate decreased by 3% relative to nominal value:
-Ba 102 22.00 2715 1113 54408 10499 97.3 0.840 ! Near Maximum !
You will notice it's toward the top velocity wise:
Cartridge : 5.56 mm NATO - 5.56 x 45 mm
Bullet : .224, 68, Hornady BTHP M 2278
Useable Case Capaci: 24.107 grain H2O = 1.565 cm³
Cartridge O.A.L. L6: 2.260 inch = 57.40 mm
Barrel Length : 16.0 inch = 406.4 mm
Predicted Data for Indicated Charges of the Following Powders.
Matching Maximum Pressure: 61500 psi, or 424 MPa
or a maximum loading ratio or filling of 108 %
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 !
41 loads produced a Loading Ratio below user-defined minimum of 80%. 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
--------------------------------- -----------------------------------------------------------------
Alliant AR-Comp *C *T 107.4 23.1 1.50 2853 100.0 61500 10363 0.793 ! Near Maximum !
Winchester 748 103.1 24.7 1.60 2843 96.8 61500 11320 0.794 ! Near Maximum !
Hodgdon BL-C2 105.7 25.6 1.66 2833 95.7 61500 11467 0.801 ! Near Maximum !
Accurate 2520 106.3 24.9 1.61 2827 97.6 61500 11141 0.808 ! Near Maximum !
Accurate 2495 108.0 23.5 1.52 2818 99.7 59508 11056 0.838 ! Near Maximum !
Hodgdon H4895 107.6 23.9 1.55 2816 95.0 61500 11281 0.804 ! Near Maximum !
Hodgdon H322 104.0 22.4 1.45 2813 99.0 61500 10671 0.797 ! Near Maximum !
ADI AR 2219 aka H322 97.7 22.4 1.45 2813 99.0 61500 10671 0.797 ! Near Maximum !
Hodgdon H335 97.9 23.8 1.54 2808 98.3 61500 10851 0.801 ! Near Maximum !
ADI AR 2206H aka H4895 107.8 24.0 1.55 2806 94.2 61500 11210 0.805 ! Near Maximum !
Ramshot Wild Boar 105.6 25.1 1.62 2806 94.0 61500 11177 0.800 ! Near Maximum !
Vihtavuori N530 *C 103.4 23.1 1.50 2795 96.0 61500 10892 0.802 ! Near Maximum !
Alliant Reloder-10x *C 101.4 21.3 1.38 2790 100.0 61500 10156 0.811 ! Near Maximum !
Norma 202 *C 108.0 23.6 1.53 2789 98.1 60167 10808 0.813 ! Near Maximum !
IMR 8208 XBR 105.7 23.5 1.52 2785 95.8 61500 10773 0.803 ! Near Maximum !
Accurate 2460 101.1 24.2 1.57 2781 96.8 61500 10714 0.817 ! Near Maximum !
Alliant Reloder-12 103.3 23.4 1.52 2776 99.0 61500 10326 0.802 ! Near Maximum !
Accurate 2015 104.2 22.2 1.44 2774 99.9 61500 10062 0.816 ! Near Maximum !
Norma 200 *C 97.5 21.2 1.37 2773 100.0 61500 9923 0.824 ! Near Maximum !
Accurate 2230 100.3 24.1 1.56 2760 95.0 61500 10524 0.812 ! Near Maximum !
ADI AR 2210 98.0 22.5 1.46 2757 96.8 61500 10384 0.806 ! Near Maximum !
Norma 201 *C 108.0 23.5 1.52 2757 95.5 59616 10793 0.827 ! Near Maximum !
IMR 4198 100.5 20.0 1.30 2755 100.0 61500 9413 0.796 ! Near Maximum !
IMR 4895 108.0 24.0 1.56 2754 92.9 55904 11288 0.837 ! Near Maximum !
Accurate 2200 95.2 21.5 1.39 2753 97.7 61500 10192 0.804 ! Near Maximum !
Ramshot X-Terminator *C 102.1 24.2 1.57 2752 94.0 61500 10564 0.808 ! Near Maximum !
ADI AR 2207 aka H4198 95.8 19.9 1.29 2751 100.0 61500 9310 0.811 ! Near Maximum !
Ramshot TAC *C 104.4 25.0 1.62 2751 90.4 61500 10728 0.807 ! Near Maximum !
IMR 3031 108.0 22.4 1.45 2748 98.6 52981 10909 0.848
ADI BM2 aka Benchmark 95.9 22.7 1.47 2748 96.8 61500 10286 0.807 ! Near Maximum !
Hodgdon Benchmark 104.2 22.8 1.48 2747 96.6 61500 10286 0.807 ! Near Maximum !
Hodgdon CFE223 *C 108.0 26.2 1.70 2744 90.3 56099 11264 0.827 ! Near Maximum !
Ramshot Big Game 108.0 25.6 1.66 2740 92.0 55743 11111 0.829 ! Near Maximum !
Accurate 1680 87.4 20.3 1.31 2740 99.5 61500 9742 0.804 ! Near Maximum !
Accurate 5744 83.7 17.8 1.15 2739 100.0 61500 9483 0.798 ! Near Maximum !
Alliant Reloder-7 94.9 20.4 1.32 2738 100.0 61500 9489 0.814 ! Near Maximum !
Vihtavuori N130 *C 103.9 21.6 1.40 2736 100.0 61500 9540 0.811 ! Near Maximum !
ADI AR 2206 No Hodgdon 106.1 23.3 1.51 2726 94.9 61500 10155 0.806 ! Near Maximum !
Hodgdon H4198 96.6 20.2 1.31 2724 98.8 61500 9592 0.800 ! Near Maximum !
Vihtavuori N540 *C 108.0 24.3 1.57 2724 97.2 56061 10670 0.837 ! Near Maximum !
Alliant Reloder-15 *C 108.0 24.0 1.56 2718 91.6 54706 11014 0.846 ! Near Maximum !
Hodgdon H4227 91.0 18.5 1.20 2707 100.0 61500 8762 0.803 ! Near Maximum !
Vihtavuori N120 *C 98.3 20.0 1.29 2707 100.0 61500 8685 0.813 ! Near Maximum !
Norma 203B *C 108.0 24.0 1.56 2705 92.1 53558 10977 0.854 ! Near Maximum !
Vihtavuori N125 *C 92.9 19.2 1.24 2704 100.0 61500 8690 0.813 ! Near Maximum !
IMR 4227 90.3 18.4 1.19 2695 100.0 61500 8713 0.802 ! Near Maximum !
Vihtavuori N133 *C 108.0 22.0 1.42 2693 99.5 57652 9556 0.828 ! Near Maximum !
IMR 4320 108.0 23.6 1.53 2657 91.1 52629 10412 0.850
Hodgdon H380 108.0 24.5 1.59 2656 88.7 52634 10641 0.865
Norma 203 old 108.0 24.3 1.57 2642 92.2 49254 10799 0.891
ADI AR 2208 aka Varget 108.0 23.3 1.51 2637 90.6 52580 10251 0.857
Accurate 4064 108.0 23.5 1.52 2637 96.2 48145 10791 0.921
Hodgdon VARGET *T 108.0 23.2 1.50 2628 90.4 51995 10210 0.861
You didn't use logic or reason to get into this opinion, I cannot use logic or reason to get you out of it.
You cannot over estimate the unimportance of nearly everything. John Maxwell
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Joined: Nov 2005
Posts: 10,285 Likes: 1
Campfire Outfitter
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OP
Campfire Outfitter
Joined: Nov 2005
Posts: 10,285 Likes: 1 |
Unless they changed the 50SX, I would not run them in anything faster than a 10" twist. Even a 9" twist will SMOKE them! This is a 9 twist barrel, 26 inch. Hornady says the max RPM is 240,000 to 250,00. My prospective load will be right in the middle of the data. Working out a speculated 237,000 RPM from the 9 twist barrel. That is on the edge to be sure, close enough that what the rifling does to the bullet is going to count. But then again the 50 grain Speer TNT has the same limit. I ran it ahead of 25.5 grains of H335 with no issue. But since that explosion takes place after the bullet leaves the barrel it poses no danger to the shooter.
Last edited by Armednfree; 02/29/20.
The older I become the more I am convinced that the voice of honor in a man's heart is the voice of GOD.
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Joined: Jun 2007
Posts: 7,931 Likes: 3
Campfire Outfitter
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Campfire Outfitter
Joined: Jun 2007
Posts: 7,931 Likes: 3 |
I use H322 in 223 w/53 gr Sierra or Hornady flat base boolits. Most accurate load for me from 20" 1:9 ar15. 0.63" 10 shot groups @ 100m w/service rifle irons. Rested of course.
Paste from spreadsheet where I document my loads.
223 Remington *** H322 23.8 gr Sierra #1400 53 gr HP Match King Federal 205M LC / Winchester 1.76" 2.25 oal neg 0.060" gage sub-moa A2 Service Rifle ***
223 Remington *** H322 23.8 gr Hornady #2250 53 gr HP Match .218BC Federal 205M LC / Winchester 1.76" 2.25 oal neg 0.072" gage sub-moa A2 Service Rifle ***
H322 werks well in 243Winchester for me too. Howa 1500 rifle.
243 Win H322 / 35.0 Sierra #1510, FBHP 75gr Rem 9 1/2 -0.025 gage/2.580 oal 0.025 xx fps? 0.50" x3 shot group 12/17/17
GOA
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Joined: Nov 2005
Posts: 10,285 Likes: 1
Campfire Outfitter
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OP
Campfire Outfitter
Joined: Nov 2005
Posts: 10,285 Likes: 1 |
Here's an issue. Most of what I see and what people say is based on the AR-15. The thing is AR-15's have one of three chambers typically. A NATO chamber, a Wylde or a Compass Lake. mine is an actual Sammi spec 223 chamber, and seemingly rather tight at that. My lead is one hell of a lot shorter than those.
I tried to chamber an empty that was fired in the Windham AR, not even close.
The older I become the more I am convinced that the voice of honor in a man's heart is the voice of GOD.
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Joined: Nov 2011
Posts: 31,072 Likes: 4
Campfire 'Bwana
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Campfire 'Bwana
Joined: Nov 2011
Posts: 31,072 Likes: 4 |
Here's an issue. Most of what I see and what people say is based on the AR-15. The thing is AR-15's have one of three chambers typically. A NATO chamber, a Wylde or a Compass Lake. mine is an actual Sammi spec 223 chamber, and seemingly rather tight at that. My lead is one hell of a lot shorter than those.
I tried to chamber an empty that was fired in the Windham AR, not even close. Yes. A true .223 chamber and 26" barrel is a good bit different:
Cartridge : .223 Rem. (SAAMI)
Bullet : .224, 68, Hornady BTHP M 2278
Useable Case Capaci: 24.415 grain H2O = 1.585 cm³
Cartridge O.A.L. L6: 2.260 inch = 57.40 mm
Barrel Length : 26.0 inch = 660.4 mm
Powder : Hodgdon H322
Predicted data by increasing and decreasing the given charge,
incremented in steps of 2.273% of nominal charge.
CAUTION: Figures exceed maximum and minimum recommended loads !
Step Fill. Charge Vel. Energy Pmax Pmuz Prop.Burnt B_Time
% % Grains fps ft.lbs psi psi % ms
-22.7 78 17.00 2411 878 27213 4794 93.1 1.505
-20.5 80 17.50 2476 925 29252 4948 94.3 1.462
-18.2 82 18.00 2539 974 31442 5095 95.3 1.421
-15.9 85 18.50 2603 1023 33796 5232 96.3 1.381
-13.6 87 19.00 2666 1073 36328 5361 97.2 1.343
-11.4 89 19.50 2729 1124 39051 5479 97.9 1.302
-09.1 92 20.00 2791 1176 41983 5587 98.6 1.262
-06.8 94 20.50 2853 1229 45143 5684 99.1 1.223
-04.5 96 21.00 2914 1282 48550 5769 99.5 1.186 ! Near Maximum !
-02.3 98 21.50 2974 1335 52228 5842 99.8 1.151 ! Near Maximum !
+00.0 101 22.00 3034 1390 56204 5902 99.9 1.117 !DANGEROUS LOAD-DO NOT USE!
+02.3 103 22.50 3093 1444 60485 5950 100.0 1.084 !DANGEROUS LOAD-DO NOT USE!
+04.5 105 23.00 3151 1499 65085 5989 100.0 1.053 !DANGEROUS LOAD-DO NOT USE!
+06.8 108 23.50 3209 1554 70058 6026 100.0 1.023 !DANGEROUS LOAD-DO NOT USE!
+09.1 110 24.00 3266 1610 75443 6060 100.0 0.995 !DANGEROUS LOAD-DO NOT USE!
+11.4 112 24.50 3322 1666 81283 6092 100.0 0.967 !DANGEROUS LOAD-DO NOT USE!
Results caused by ± 3% powder lot-to-lot burning rate variation using nominal charge
Data for burning rate increased by 3% relative to nominal value:
+Ba 101 22.00 3070 1423 59459 5817 100.0 1.094 !DANGEROUS LOAD-DO NOT USE!
Data for burning rate decreased by 3% relative to nominal value:
-Ba 101 22.00 2993 1353 52971 5964 99.5 1.142 ! Near Maximum !
You didn't use logic or reason to get into this opinion, I cannot use logic or reason to get you out of it.
You cannot over estimate the unimportance of nearly everything. John Maxwell
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Joined: Feb 2004
Posts: 19,248 Likes: 4
Campfire Ranger
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Campfire Ranger
Joined: Feb 2004
Posts: 19,248 Likes: 4 |
H322, AA2015 and RL10x seem to be in the same burn rate category. My best accuracy out of a Mini 14 (not known for accuracy) is with AA2015 and RL10x in the 23 to 23.4 grain range. I have a Ruger American I should give 322 a try. But, with a 1/8 twist I should pass on the SX bullets. It shoots 24.4 of IMR3031 and 55 grain Nosler Varmageddons to small groups.(yet to be rested and checked for MOA) I also have a Remington 700 with a 1/12 twist I have yet to put on paper. The 1/12 twist should be good to go for SX bullets. Good information. Thanks for posting it.
kwg
For liberals and anarchists, power and control is opium, selling envy is the fastest and easiest way to get it. TRR. American conservative. Never trust a white liberal. Malcom X Current NRA member.
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Joined: Sep 2006
Posts: 2,552
Campfire Regular
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Campfire Regular
Joined: Sep 2006
Posts: 2,552 |
H322 is my go to powder in the 223!
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Joined: Dec 2016
Posts: 5,511
Campfire Tracker
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Campfire Tracker
Joined: Dec 2016
Posts: 5,511 |
I get my best accuracy with 322 in both my 222 SAKO with 50 to 52 grain bullets and also with 50 and 55 grain bullets in my AR15s in 5.56.
It also gives top accuracy in the 6.8 SPC and good velocity too.
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Joined: Nov 2015
Posts: 19,239 Likes: 2
Campfire Ranger
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Campfire Ranger
Joined: Nov 2015
Posts: 19,239 Likes: 2 |
I've got a ton of H322. Bought specifically for the 6.8 SPC, also use it in the 223. Have just about quit shooting the 6.8, and hope that powder don't get old and musty on me.
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Joined: Nov 2005
Posts: 10,285 Likes: 1
Campfire Outfitter
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OP
Campfire Outfitter
Joined: Nov 2005
Posts: 10,285 Likes: 1 |
Here's an issue. Most of what I see and what people say is based on the AR-15. The thing is AR-15's have one of three chambers typically. A NATO chamber, a Wylde or a Compass Lake. mine is an actual Sammi spec 223 chamber, and seemingly rather tight at that. My lead is one hell of a lot shorter than those.
I tried to chamber an empty that was fired in the Windham AR, not even close. Yes. A true .223 chamber and 26" barrel is a good bit different:
Cartridge : .223 Rem. (SAAMI)
Bullet : .224, 68, Hornady BTHP M 2278
Useable Case Capaci: 24.415 grain H2O = 1.585 cm³
Cartridge O.A.L. L6: 2.260 inch = 57.40 mm
Barrel Length : 26.0 inch = 660.4 mm
Powder : Hodgdon H322
Predicted data by increasing and decreasing the given charge,
incremented in steps of 2.273% of nominal charge.
CAUTION: Figures exceed maximum and minimum recommended loads !
Step Fill. Charge Vel. Energy Pmax Pmuz Prop.Burnt B_Time
% % Grains fps ft.lbs psi psi % ms
-22.7 78 17.00 2411 878 27213 4794 93.1 1.505
-20.5 80 17.50 2476 925 29252 4948 94.3 1.462
-18.2 82 18.00 2539 974 31442 5095 95.3 1.421
-15.9 85 18.50 2603 1023 33796 5232 96.3 1.381
-13.6 87 19.00 2666 1073 36328 5361 97.2 1.343
-11.4 89 19.50 2729 1124 39051 5479 97.9 1.302
-09.1 92 20.00 2791 1176 41983 5587 98.6 1.262
-06.8 94 20.50 2853 1229 45143 5684 99.1 1.223
-04.5 96 21.00 2914 1282 48550 5769 99.5 1.186 ! Near Maximum !
-02.3 98 21.50 2974 1335 52228 5842 99.8 1.151 ! Near Maximum !
+00.0 101 22.00 3034 1390 56204 5902 99.9 1.117 !DANGEROUS LOAD-DO NOT USE!
+02.3 103 22.50 3093 1444 60485 5950 100.0 1.084 !DANGEROUS LOAD-DO NOT USE!
+04.5 105 23.00 3151 1499 65085 5989 100.0 1.053 !DANGEROUS LOAD-DO NOT USE!
+06.8 108 23.50 3209 1554 70058 6026 100.0 1.023 !DANGEROUS LOAD-DO NOT USE!
+09.1 110 24.00 3266 1610 75443 6060 100.0 0.995 !DANGEROUS LOAD-DO NOT USE!
+11.4 112 24.50 3322 1666 81283 6092 100.0 0.967 !DANGEROUS LOAD-DO NOT USE!
Results caused by ± 3% powder lot-to-lot burning rate variation using nominal charge
Data for burning rate increased by 3% relative to nominal value:
+Ba 101 22.00 3070 1423 59459 5817 100.0 1.094 !DANGEROUS LOAD-DO NOT USE!
Data for burning rate decreased by 3% relative to nominal value:
-Ba 101 22.00 2993 1353 52971 5964 99.5 1.142 ! Near Maximum !
I'm trying to figure out why it calls 22 grains dangerous when I shoot 22.7 grains with no issue.
The older I become the more I am convinced that the voice of honor in a man's heart is the voice of GOD.
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Joined: Apr 2011
Posts: 151,874 Likes: 22
Campfire Savant
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Campfire Savant
Joined: Apr 2011
Posts: 151,874 Likes: 22 |
Forget the gun crap, pork the ugly girl.
Last edited by hanco; 02/29/20.
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Joined: Nov 2011
Posts: 31,072 Likes: 4
Campfire 'Bwana
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Campfire 'Bwana
Joined: Nov 2011
Posts: 31,072 Likes: 4 |
Here's an issue. Most of what I see and what people say is based on the AR-15. The thing is AR-15's have one of three chambers typically. A NATO chamber, a Wylde or a Compass Lake. mine is an actual Sammi spec 223 chamber, and seemingly rather tight at that. My lead is one hell of a lot shorter than those.
I tried to chamber an empty that was fired in the Windham AR, not even close. Yes. A true .223 chamber and 26" barrel is a good bit different:
Cartridge : .223 Rem. (SAAMI)
Bullet : .224, 68, Hornady BTHP M 2278
Useable Case Capaci: 24.415 grain H2O = 1.585 cm³
Cartridge O.A.L. L6: 2.260 inch = 57.40 mm
Barrel Length : 26.0 inch = 660.4 mm
Powder : Hodgdon H322
Predicted data by increasing and decreasing the given charge,
incremented in steps of 2.273% of nominal charge.
CAUTION: Figures exceed maximum and minimum recommended loads !
Step Fill. Charge Vel. Energy Pmax Pmuz Prop.Burnt B_Time
% % Grains fps ft.lbs psi psi % ms
-22.7 78 17.00 2411 878 27213 4794 93.1 1.505
-20.5 80 17.50 2476 925 29252 4948 94.3 1.462
-18.2 82 18.00 2539 974 31442 5095 95.3 1.421
-15.9 85 18.50 2603 1023 33796 5232 96.3 1.381
-13.6 87 19.00 2666 1073 36328 5361 97.2 1.343
-11.4 89 19.50 2729 1124 39051 5479 97.9 1.302
-09.1 92 20.00 2791 1176 41983 5587 98.6 1.262
-06.8 94 20.50 2853 1229 45143 5684 99.1 1.223
-04.5 96 21.00 2914 1282 48550 5769 99.5 1.186 ! Near Maximum !
-02.3 98 21.50 2974 1335 52228 5842 99.8 1.151 ! Near Maximum !
+00.0 101 22.00 3034 1390 56204 5902 99.9 1.117 !DANGEROUS LOAD-DO NOT USE!
+02.3 103 22.50 3093 1444 60485 5950 100.0 1.084 !DANGEROUS LOAD-DO NOT USE!
+04.5 105 23.00 3151 1499 65085 5989 100.0 1.053 !DANGEROUS LOAD-DO NOT USE!
+06.8 108 23.50 3209 1554 70058 6026 100.0 1.023 !DANGEROUS LOAD-DO NOT USE!
+09.1 110 24.00 3266 1610 75443 6060 100.0 0.995 !DANGEROUS LOAD-DO NOT USE!
+11.4 112 24.50 3322 1666 81283 6092 100.0 0.967 !DANGEROUS LOAD-DO NOT USE!
Results caused by ± 3% powder lot-to-lot burning rate variation using nominal charge
Data for burning rate increased by 3% relative to nominal value:
+Ba 101 22.00 3070 1423 59459 5817 100.0 1.094 !DANGEROUS LOAD-DO NOT USE!
Data for burning rate decreased by 3% relative to nominal value:
-Ba 101 22.00 2993 1353 52971 5964 99.5 1.142 ! Near Maximum !
I'm trying to figure out why it calls 22 grains dangerous when I shoot 22.7 grains with no issue. SAAMI standards for the .223 chamber are very conservative. Also notice this simulation uses the default case capacity. Variances in case capacity can have a significant affect on results.
You didn't use logic or reason to get into this opinion, I cannot use logic or reason to get you out of it.
You cannot over estimate the unimportance of nearly everything. John Maxwell
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Joined: Apr 2004
Posts: 42,873 Likes: 8
Campfire 'Bwana
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Campfire 'Bwana
Joined: Apr 2004
Posts: 42,873 Likes: 8 |
H322 is my go to powder in the 223! The two I've been burning a lot of in the 223... H 322 and Benchmark....
"Minus the killings, Washington has one of the lowest crime rates in the Country" Marion Barry, Mayor of Wash DC
“Owning guns is not a right. If it were a right, it would be in the Constitution.” ~Alexandria Ocasio Cortez
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Joined: Nov 2011
Posts: 31,072 Likes: 4
Campfire 'Bwana
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Campfire 'Bwana
Joined: Nov 2011
Posts: 31,072 Likes: 4 |
H322 is my go to powder in the 223! The two I've been burning a lot of in the 223... H 322 and Benchmark.... Hard to argue with that.
You didn't use logic or reason to get into this opinion, I cannot use logic or reason to get you out of it.
You cannot over estimate the unimportance of nearly everything. John Maxwell
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Joined: Nov 2005
Posts: 10,285 Likes: 1
Campfire Outfitter
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OP
Campfire Outfitter
Joined: Nov 2005
Posts: 10,285 Likes: 1 |
Well, I loaded with the 50 grain Hornady sx bullets at 23 grains. Then I loaded some 40 grain Nosler Ballistic tips with 25 grains.
Last edited by Armednfree; 02/29/20.
The older I become the more I am convinced that the voice of honor in a man's heart is the voice of GOD.
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Joined: Jun 2007
Posts: 7,931 Likes: 3
Campfire Outfitter
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Campfire Outfitter
Joined: Jun 2007
Posts: 7,931 Likes: 3 |
Here's an issue. Most of what I see and what people say is based on the AR-15. The thing is AR-15's have one of three chambers typically. A NATO chamber, a Wylde or a Compass Lake. mine is an actual Sammi spec 223 chamber, and seemingly rather tight at that. My lead is one hell of a lot shorter than those.
I tried to chamber an empty that was fired in the Windham AR, not even close. The bbl on my ar15 is chambered 223 Remington. I specifically ordered the bbl with this chamber. I did this because I use this rifle to shoot club hi-power matches.
GOA
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Joined: Jul 2005
Posts: 5,699 Likes: 5
Campfire Tracker
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Campfire Tracker
Joined: Jul 2005
Posts: 5,699 Likes: 5 |
I can't make any sense out of the reloading data for H322 and 52-53 grain bullets in 223. Hodgdon gives a max charge of 23 something, Speer a max charge of 24 something, and I think Sierra maxes at 25 something. Sierra's starting charge is darn near Hodgdon's max, unless I am reading the data wrong.
Don't know how one bullet weight and powder can have a two grain spread in the reloading data for max charges. I have a box of Hornady 53 grain match bullets that I would like to try with H322, but I can't figure out where to start.
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