OK, it isn't 375 H&H AI, it's a 375 ICL(increased case l

jtoews80

Handloader
May 19, 2007
919
15
I got that 375 in the mail today and it's a 375 ICL, one of ackley's books mention it, but it's not an Ackley round. Same idea, more is always better.
I'll put up pictures of the cases when I've got them formed.

JT.
 
I have heard of it. Nice!




Cartridge : .375 ICL Kodiak
Bullet : .375, 260, Nosler AccuBond 54413
Cartridge O.A.L. L6: 3.750 inch or 95.25 mm
Barrel Length : 26.0 inch or 660.4 mm

Predicted Data for Indicated Charges of the Following Powders.

Matching Maximum Pressure: 62500 psi, or 430 MPa

or a maximum loading ratio or filling of 105 %

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 !

116 loads produced a Loading Ratio below user-defined minimum of 90%. 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
--------------------------------- -----------------------------------------------------------------
Hodgdon H4350 104.8 86.9 5.63 2981 99.7 62500 9260 1.157 ! Near Maximum !
Ramshot Hunter 105.0 90.4 5.86 2978 99.5 62167 9397 1.167 ! Near Maximum !
Winchester 760 99.3 87.6 5.67 2974 99.1 62500 9385 1.168 ! Near Maximum !
Alliant Reloder-17 96.8 84.7 5.49 2973 100.0 62500 8874 1.156 ! Near Maximum !
Norma URP 104.7 86.4 5.60 2964 100.0 62500 9027 1.172 ! Near Maximum !
Vihtavuori N550 101.7 86.6 5.61 2963 100.0 62500 9153 1.177 ! Near Maximum !
Bofors RP19 ~approximation 104.7 86.4 5.60 2963 100.0 62500 9024 1.172 ! Near Maximum !
Hodgdon H414 96.7 85.9 5.56 2949 99.1 62500 9237 1.178 ! Near Maximum !
Norma 204 103.8 89.4 5.79 2946 97.6 62500 9312 1.164 ! Near Maximum !
Ramshot BigGame 97.7 84.1 5.45 2943 100.0 62500 8688 1.173 ! Near Maximum !
SNPE Vectan SP 11 97.8 84.2 5.46 2942 100.0 62500 8675 1.173 ! Near Maximum !
IMR 4895 96.4 77.8 5.04 2926 100.0 62500 8145 1.160 ! Near Maximum !
Somchem S365 105.0 87.1 5.64 2923 100.0 56996 8673 1.211 ! Near Maximum !
Raufoss RA11 95.1 79.3 5.14 2920 100.0 62500 8559 1.183 ! Near Maximum !
Bofors RP11 ~approximation 95.1 79.3 5.14 2920 100.0 62500 8559 1.183 ! Near Maximum !
Alliant Reloder-15 95.1 79.3 5.14 2920 100.0 62500 8559 1.183 ! Near Maximum !
Norma 203B 95.5 79.7 5.16 2918 100.0 62500 8491 1.184 ! Near Maximum !
Hodgdon H380 96.4 82.1 5.32 2912 99.9 62500 8685 1.187 ! Near Maximum !
Lovex-S0701 103.9 85.7 5.55 2912 99.1 62500 8891 1.188 ! Near Maximum !
Norma 203 old 97.0 81.8 5.30 2910 100.0 62500 8360 1.195 ! Near Maximum !
Rottweil R903 99.2 81.8 5.30 2903 100.0 62500 8282 1.195 ! Near Maximum !
PB Clermont PCL 516 92.9 82.5 5.35 2903 99.9 62500 8583 1.179 ! Near Maximum !
IMR 4320 97.0 79.6 5.16 2901 100.0 62500 8240 1.170 ! Near Maximum !
IMR 4350 105.0 83.9 5.43 2900 98.9 57969 9065 1.203 ! Near Maximum !
Somchem S355 99.2 80.9 5.24 2897 100.0 62500 8298 1.191 ! Near Maximum !
SNPE Vectan SP 9 92.7 79.9 5.18 2893 100.0 62500 8279 1.181 ! Near Maximum !
Lovex-S0651 102.6 83.7 5.42 2889 99.7 62500 8579 1.190 ! Near Maximum !
Rottweil R907 101.2 82.8 5.37 2884 98.6 62500 8697 1.186 ! Near Maximum !
IMR 4007 SSC 98.0 82.9 5.37 2883 98.6 62500 8691 1.186 ! Near Maximum !
Raufoss RA4 105.0 87.6 5.67 2883 96.8 58076 9154 1.201 ! Near Maximum !
Bofors RP4 ~approximation 105.0 87.6 5.67 2883 96.8 58076 9154 1.201 ! Near Maximum !
Hodgdon VARGET 97.7 78.9 5.11 2881 100.0 62500 8262 1.177 ! Near Maximum !
ADI AR 2208 97.4 78.9 5.11 2881 100.0 62500 8262 1.177 ! Near Maximum !
Somchem S341 91.0 81.7 5.29 2876 100.0 62500 8055 1.183 ! Near Maximum !
IMR 3031 94.6 73.7 4.78 2875 100.0 62500 7655 1.189 ! Near Maximum !
Accurate 2520 91.9 79.0 5.12 2873 100.0 62500 7830 1.201 ! Near Maximum !
IMR 4064 98.3 77.5 5.02 2872 100.0 62500 8084 1.181 ! Near Maximum !
Lovex-S0621 96.1 78.0 5.05 2870 100.0 62500 7958 1.194 ! Near Maximum !
Accurate 4064 101.2 78.9 5.11 2869 100.0 62500 7823 1.218 ! Near Maximum !
Hodgdon H4895 97.6 78.8 5.10 2869 100.0 62500 7802 1.179 ! Near Maximum !
Accurate 4350 105.0 83.8 5.43 2860 99.7 55156 8867 1.253 ! Near Maximum !
ADI AR 2209 105.0 87.1 5.64 2860 96.4 55319 9227 1.219 ! Near Maximum !
Norma MRP 105.0 91.4 5.92 2859 97.1 49681 9907 1.274
Vihtavuori N150 104.4 82.1 5.32 2854 100.0 62500 7799 1.191 ! Near Maximum !
Vihtavuori N540 94.8 79.9 5.18 2854 100.0 62500 7824 1.192 ! Near Maximum !
Rottweil R902 94.9 76.3 4.95 2851 100.0 62500 7818 1.199 ! Near Maximum !
Norma 202 92.5 75.9 4.92 2849 100.0 62500 7662 1.194 ! Near Maximum !
Vihtavuori N140 100.5 80.5 5.22 2846 100.0 62500 7741 1.187 ! Near Maximum !
Alliant Reloder-19 105.0 87.6 5.67 2844 96.3 53824 9250 1.239 ! Near Maximum !
Accurate 2495 94.1 74.2 4.81 2841 100.0 62500 7519 1.225 ! Near Maximum !
Winchester Supreme 780 105.0 92.3 5.98 2837 96.6 56581 8875 1.217 ! Near Maximum !
Lovex-S0601 92.5 75.1 4.86 2831 100.0 62500 7722 1.184 ! Near Maximum !
Accurate 2700 99.0 85.2 5.52 2830 98.3 62500 8170 1.192 ! Near Maximum !
Rottweil R904 105.0 86.3 5.59 2829 95.5 57078 8804 1.218 ! Near Maximum !
Rottweil R901 91.1 72.2 4.68 2827 100.0 62500 7516 1.209 ! Near Maximum !
IMR 4831 105.0 83.9 5.43 2821 99.7 53636 8644 1.262
ADI AR 2206 91.9 75.8 4.91 2819 100.0 62500 7599 1.185 ! Near Maximum !
IMR 7828 SSC 105.0 90.0 5.83 2816 93.5 50729 9493 1.262
Bofors RP14 ~approximation 105.0 87.6 5.67 2816 96.0 52576 9119 1.253
ADI AR 2206H 91.1 76.0 4.92 2814 100.0 62500 7573 1.184 ! Near Maximum !
Vihtavuori N135 100.6 76.1 4.93 2813 100.0 62500 7177 1.203 ! Near Maximum !
Somchem S385 105.0 88.5 5.74 2801 97.1 52953 8884 1.269
Vihtavuori N560 105.0 89.5 5.80 2789 92.3 47666 9653 1.301
ADI AR 2213 105.0 88.5 5.74 2780 93.0 49657 9304 1.276
Somchem S335 92.6 75.5 4.90 2779 100.0 62500 7091 1.206 ! Near Maximum !
Hodgdon Hybrid 100V 105.0 81.9 5.30 2773 100.0 51334 8110 1.274
Hodgdon H4831 SC 105.0 88.5 5.74 2772 93.1 52067 8867 1.259
Bofors RP5/NP ~approximation 105.0 88.5 5.74 2772 94.7 47001 9431 1.312
Raufoss RA15 105.0 88.5 5.74 2772 94.7 47001 9431 1.312
Alliant Reloder-22 105.0 88.5 5.74 2772 94.7 47001 9431 1.312
Vihtavuori N133 94.3 72.0 4.67 2754 100.0 62500 6737 1.199 ! Near Maximum !
Accurate MAGPRO 105.0 93.1 6.03 2754 89.8 46337 9550 1.322
Rottweil R905 105.0 86.9 5.63 2698 91.6 45497 8902 1.336
Winchester WXR 105.0 86.6 5.61 2691 93.2 43056 9158 1.367
Ramshot Magnum (Big Boy) 105.0 93.8 6.08 2672 90.9 43061 9265 1.361
SNPE Vectan SP 12 105.0 93.5 6.06 2664 90.8 42687 9226 1.366
PB Clermont PCL 517 105.0 93.5 6.06 2658 90.6 42456 9211 1.370
Hodgdon H4831 105.0 85.1 5.51 2654 91.0 45530 8479 1.338
IMR 7828 105.0 85.1 5.51 2641 90.2 41981 8891 1.378
Vihtavuori N165 105.0 86.6 5.61 2632 94.4 44299 8233 1.361
Alliant Reloder-25 105.0 87.1 5.64 2626 95.7 38937 9117 1.424
Vihtavuori N160 105.0 84.0 5.44 2626 92.3 45881 8077 1.344
ADI AP 2214 105.0 90.9 5.89 2621 89.9 42978 8747 1.367
Accurate 3100 105.0 82.8 5.37 2528 94.9 37887 8113 1.487
Norma MRP 2 105.0 87.6 5.67 2516 87.7 34729 8809 1.501
Vihtavuori N570 105.0 92.3 5.98 2462 78.0 33785 8813 1.526
Hodgdon H1000 105.0 86.6 5.61 2460 86.0 36100 8110 1.482
Hodgdon Retumbo 105.0 88.1 5.71 2392 86.9 31244 8473 1.569
Lovex-D1001 105.0 94.2 6.11 2356 73.8 35387 7222 1.515
Vihtavuori N170 105.0 86.6 5.61 2330 77.6 31984 7363 1.580
Vihtavuori 24N41 105.0 93.3 6.04 2314 69.5 33191 7287 1.557










Cartridge : .375 ICL Kodiak
Bullet : .375, 300, Nosler PART SP 44845
Cartridge O.A.L. L6: 3.750 inch or 95.25 mm
Barrel Length : 26.0 inch or 660.4 mm

Predicted Data for Indicated Charges of the Following Powders.

Matching Maximum Pressure: 62500 psi, or 430 MPa

or a maximum loading ratio or filling of 105 %

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 !

126 loads produced a Loading Ratio below user-defined minimum of 90%. 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
--------------------------------- -----------------------------------------------------------------
Norma MRP 105.0 92.3 5.98 2812 99.6 57649 10201 1.271 ! Near Maximum !
ADI AR 2209 104.8 87.9 5.69 2792 99.1 62500 9551 1.230 ! Near Maximum !
Ramshot Hunter 101.0 87.9 5.69 2791 100.0 62500 9307 1.243 ! Near Maximum !
Hodgdon H4350 100.7 84.4 5.47 2788 100.0 62500 9139 1.236 ! Near Maximum !
Winchester 760 95.3 85.0 5.51 2785 99.8 62500 9312 1.246 ! Near Maximum !
Somchem S365 103.1 86.4 5.60 2782 100.0 62500 8605 1.249 ! Near Maximum !
Alliant Reloder-19 105.0 88.5 5.73 2779 99.0 61411 9592 1.246 ! Near Maximum !
IMR 7828 SSC 105.0 90.9 5.89 2776 97.6 57998 9981 1.262 ! Near Maximum !
Alliant Reloder-17 93.0 82.2 5.33 2775 100.0 62500 8733 1.234 ! Near Maximum !
IMR 4350 103.2 83.3 5.39 2774 99.9 62500 9107 1.242 ! Near Maximum !
Vihtavuori N550 97.6 84.0 5.45 2768 100.0 62500 9004 1.256 ! Near Maximum !
Norma URP 100.5 83.8 5.43 2767 100.0 62500 8873 1.251 ! Near Maximum !
Bofors RP19 ~approximation 100.5 83.8 5.43 2767 100.0 62500 8871 1.251 ! Near Maximum !
Raufoss RA4 103.2 87.0 5.64 2766 99.0 62500 9351 1.240 ! Near Maximum !
Norma 204 100.0 87.0 5.64 2766 99.0 62500 9351 1.240 ! Near Maximum !
Bofors RP4 ~approximation 103.2 87.0 5.64 2766 99.0 62500 9351 1.240 ! Near Maximum !
Accurate 4350 104.3 84.0 5.45 2764 100.0 62500 8826 1.267 ! Near Maximum !
Hodgdon H414 92.9 83.4 5.40 2762 99.8 62500 9174 1.256 ! Near Maximum !
Bofors RP14 ~approximation 105.0 88.5 5.73 2753 98.9 59963 9476 1.260 ! Near Maximum !
Vihtavuori N560 105.0 90.4 5.86 2751 96.7 54797 10213 1.300 ! Near Maximum !
Winchester Supreme 780 103.9 92.3 5.98 2745 99.0 62500 9126 1.243 ! Near Maximum !
Ramshot BigGame 93.7 81.6 5.28 2744 100.0 62500 8544 1.253 ! Near Maximum !
SNPE Vectan SP 11 93.9 81.7 5.29 2743 100.0 62500 8533 1.253 ! Near Maximum !
IMR 4831 105.0 84.7 5.49 2739 100.0 61596 8655 1.268 ! Near Maximum !
Somchem S385 105.0 89.4 5.80 2738 99.5 60918 9141 1.272 ! Near Maximum !
ADI AR 2213 105.0 89.4 5.80 2738 97.2 56481 9824 1.279 ! Near Maximum !
Rottweil R904 104.0 86.4 5.60 2734 98.2 62500 9096 1.246 ! Near Maximum !
Lovex-S0701 100.0 83.3 5.40 2728 99.9 62500 8834 1.264 ! Near Maximum !
Raufoss RA15 105.0 89.4 5.80 2728 98.3 54232 9867 1.311 ! Near Maximum !
Alliant Reloder-22 105.0 89.4 5.80 2728 98.3 54232 9867 1.311 ! Near Maximum !
Bofors RP5/NP ~approximation 105.0 89.4 5.80 2728 98.3 54232 9867 1.311 ! Near Maximum !
Accurate MAGPRO 105.0 94.0 6.09 2727 94.9 53693 10204 1.316
Bofors RP11 ~approximation 91.3 76.9 4.99 2724 100.0 62500 8406 1.262 ! Near Maximum !
Raufoss RA11 91.3 76.9 4.99 2724 100.0 62500 8406 1.262 ! Near Maximum !
Alliant Reloder-15 91.3 76.9 4.99 2724 100.0 62500 8406 1.262 ! Near Maximum !
IMR 4895 92.5 75.4 4.89 2722 100.0 62500 8008 1.240 ! Near Maximum !
Hodgdon H380 92.7 79.8 5.17 2722 100.0 62500 8548 1.265 ! Near Maximum !
Hodgdon H4831 SC 105.0 89.4 5.80 2720 97.0 59283 9342 1.265 ! Near Maximum !
Norma 203B 91.7 77.3 5.01 2720 100.0 62500 8344 1.263 ! Near Maximum !
Norma 203 old 93.0 79.2 5.14 2710 100.0 62500 8220 1.276 ! Near Maximum !
IMR 4320 93.3 77.3 5.01 2706 100.0 62500 8106 1.249 ! Near Maximum !
Rottweil R903 95.1 79.3 5.14 2705 100.0 62500 8140 1.276 ! Near Maximum !
Rottweil R907 97.5 80.6 5.23 2705 99.6 62500 8683 1.261 ! Near Maximum !
IMR 4007 SSC 94.4 80.7 5.23 2704 99.6 62500 8677 1.262 ! Near Maximum !
Lovex-S0651 98.7 81.4 5.27 2704 100.0 62500 8483 1.267 ! Near Maximum !
Somchem S355 95.2 78.5 5.09 2701 100.0 62500 8163 1.271 ! Near Maximum !
Hodgdon VARGET 94.1 76.7 4.97 2690 100.0 62500 8137 1.254 ! Near Maximum !
ADI AR 2208 93.8 76.7 4.97 2690 100.0 62500 8137 1.254 ! Near Maximum !
Hodgdon Hybrid 100V 105.0 82.7 5.36 2686 100.0 59163 8087 1.282 ! Near Maximum !
IMR 4064 94.6 75.3 4.88 2680 100.0 62500 7950 1.260 ! Near Maximum !
Lovex-S0621 92.3 75.7 4.90 2673 100.0 62500 7829 1.274 ! Near Maximum !
Hodgdon H4895 93.8 76.4 4.95 2670 100.0 62500 7687 1.259 ! Near Maximum !
IMR 3031 90.5 71.3 4.62 2666 100.0 62500 7518 1.273 ! Near Maximum !
Accurate 4064 96.9 76.3 4.94 2665 100.0 62500 7682 1.300 ! Near Maximum !
Ramshot Magnum (Big Boy) 105.0 94.7 6.14 2661 96.3 49705 9901 1.351
Vihtavuori N150 100.4 79.8 5.17 2659 100.0 62500 7695 1.272 ! Near Maximum !
Rottweil R905 105.0 87.8 5.69 2659 96.1 52386 9435 1.336
Accurate 2700 95.5 83.1 5.38 2658 99.4 62500 8181 1.267 ! Near Maximum !
Rottweil R902 91.3 74.1 4.80 2656 100.0 62500 7694 1.278 ! Near Maximum !
Vihtavuori N540 91.1 77.6 5.03 2656 100.0 62500 7725 1.273 ! Near Maximum !
SNPE Vectan SP 12 105.0 94.4 6.12 2653 96.3 49271 9860 1.356
Vihtavuori N140 96.7 78.3 5.07 2653 100.0 62500 7634 1.266 ! Near Maximum !
Winchester WXR 105.0 87.5 5.67 2652 97.3 49586 9660 1.365
PB Clermont PCL 517 105.0 94.4 6.12 2648 96.1 48992 9858 1.360
Accurate 2495 90.0 71.7 4.65 2634 100.0 62500 7377 1.309 ! Near Maximum !
IMR 7828 105.0 86.0 5.57 2612 95.3 47883 9498 1.377
Vihtavuori N135 96.5 73.7 4.78 2611 100.0 62500 7067 1.286 ! Near Maximum !
Hodgdon H4831 105.0 86.0 5.57 2609 95.5 51768 9011 1.343
ADI AP 2214 105.0 91.8 5.95 2603 95.5 48987 9387 1.363
Alliant Reloder-25 105.0 88.0 5.70 2598 99.2 44634 9496 1.419
Vihtavuori N165 105.0 87.5 5.67 2585 98.0 50963 8616 1.363
Vihtavuori N160 105.0 84.8 5.50 2573 96.3 52133 8528 1.352
Vihtavuori N133 90.8 70.0 4.54 2558 100.0 62500 6651 1.282 ! Near Maximum !
Norma MRP 2 105.0 88.5 5.73 2507 93.7 40185 9530 1.498
Accurate 3100 105.0 83.7 5.42 2492 98.5 44461 8460 1.477
Vihtavuori N570 105.0 93.3 6.04 2477 85.8 38880 9870 1.517
 
The rifle is built on a CZ 602 zkk action. It`s got a black painted wood stock that is kinda blocky, looks homemade, but not terrible.
I call it `Black Betty` after the old song because of the stock.
It`s a big CRF action with set trigger and the safety is backwards to my CZ550, on is forward :shock: :shock: Yeah, that is a concern when it`s going to be loaded with 300 grn partitions. The fired brass looks like it is moving alot near the belt, so I`m going to have to form with pistol powder and cream of wheat. I figure 10 grains of H110 and cream of wheat, but would welcome suggestions from anybody who has formed this way. I hve only used the live fire method on the brass I bought from the classifieds here and just hope for a few loadings out of the box of loaded ammo I bought.

JT.
 
OK, I fired some factory rounds to form brass and see if it was shooting. Didn't end up shooting at a target, just fired a few to see if it kicked at all and get a look at the formed brass. Here is a pic of the rifle and some formed cases with a factory 375 H&H loaded round for comparision.
JApics025.jpg

JApics028.jpg

JApics026.jpg


The scope is a piece of junk that was lying on my bench and will be changed out with a leupold VX II 3-9X40. I tried to mount it, but the rings needed to be lapped and it was impairing the windage adjustment of the scope. I lapped the rings and put the cheapo scope on to settle the rings in for a box or so. I am waiting on some 300 grn Partitions for load development. I am hopeing to get 2650-2750 FPS within 1 MOA or less from my hunting load.

JT.
 
Cartridge : .375 ICL Kodiak
Bullet : .375, 300, Nosler PART SP 44845
Cartridge O.A.L. L6: 3.750 inch or 95.25 mm
Barrel Length : 24.0 inch or 609.6 mm

Predicted Data for Indicated Charges of the Following Powders.

Matching Maximum Pressure: 62500 psi, or 430 MPa

or a maximum loading ratio or filling of 105 %

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 !

126 loads produced a Loading Ratio below user-defined minimum of 90%. 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
--------------------------------- -----------------------------------------------------------------
Norma MRP 105.0 92.3 5.98 2760 99.3 57649 11260 1.211 ! Near Maximum !
Ramshot Hunter 101.0 87.9 5.69 2743 99.9 62500 10302 1.182 ! Near Maximum !
ADI AR 2209 104.8 87.9 5.69 2743 98.7 62500 10529 1.170 ! Near Maximum !
Hodgdon H4350 100.7 84.4 5.47 2741 100.0 62500 10126 1.175 ! Near Maximum !
Somchem S365 103.1 86.4 5.60 2738 100.0 62500 9544 1.189 ! Near Maximum !
Winchester 760 95.3 85.0 5.51 2737 99.7 62500 10302 1.186 ! Near Maximum !
Alliant Reloder-19 105.0 88.5 5.73 2730 98.7 61411 10571 1.186 ! Near Maximum !
Alliant Reloder-17 93.0 82.2 5.33 2730 100.0 62500 9673 1.173 ! Near Maximum !
IMR 4350 103.2 83.3 5.39 2726 99.8 62500 10081 1.182 ! Near Maximum !
IMR 7828 SSC 105.0 90.9 5.89 2724 97.0 57998 10982 1.202 ! Near Maximum !
Vihtavuori N550 97.6 84.0 5.45 2721 100.0 62500 9969 1.195 ! Near Maximum !
Norma URP 100.5 83.8 5.43 2721 100.0 62500 9832 1.191 ! Near Maximum !
Bofors RP19 ~approximation 100.5 83.8 5.43 2721 100.0 62500 9830 1.191 ! Near Maximum !
Accurate 4350 104.3 84.0 5.45 2718 100.0 62500 9792 1.206 ! Near Maximum !
Norma 204 100.0 87.0 5.64 2718 98.6 62500 10307 1.180 ! Near Maximum !
Raufoss RA4 103.2 87.0 5.64 2718 98.6 62500 10307 1.180 ! Near Maximum !
Bofors RP4 ~approximation 103.2 87.0 5.64 2718 98.6 62500 10307 1.180 ! Near Maximum !
Hodgdon H414 92.9 83.4 5.40 2714 99.6 62500 10141 1.195 ! Near Maximum !
Bofors RP14 ~approximation 105.0 88.5 5.73 2704 98.5 59963 10438 1.199 ! Near Maximum !
Ramshot BigGame 93.7 81.6 5.28 2699 100.0 62500 9463 1.191 ! Near Maximum !
SNPE Vectan SP 11 93.9 81.7 5.29 2698 100.0 62500 9451 1.191 ! Near Maximum !
Vihtavuori N560 105.0 90.4 5.86 2698 96.0 54797 11212 1.239 ! Near Maximum !
Winchester Supreme 780 103.9 92.3 5.98 2698 98.6 62500 10058 1.182 ! Near Maximum !
IMR 4831 105.0 84.7 5.49 2694 100.0 61596 9598 1.207 ! Near Maximum !
Somchem S385 105.0 89.4 5.80 2690 99.2 60918 10095 1.210 ! Near Maximum !
ADI AR 2213 105.0 89.4 5.80 2686 96.6 56481 10789 1.217 ! Near Maximum !
Rottweil R904 104.0 86.4 5.60 2686 97.8 62500 10016 1.184 ! Near Maximum !
Lovex-S0701 100.0 83.3 5.40 2682 99.7 62500 9767 1.203 ! Near Maximum !
IMR 4895 92.5 75.4 4.89 2680 100.0 62500 8875 1.178 ! Near Maximum !
Bofors RP11 ~approximation 91.3 76.9 4.99 2679 100.0 62500 9313 1.200 ! Near Maximum !
Alliant Reloder-15 91.3 76.9 4.99 2679 100.0 62500 9313 1.200 ! Near Maximum !
Raufoss RA11 91.3 76.9 4.99 2679 100.0 62500 9313 1.200 ! Near Maximum !
Hodgdon H380 92.7 79.8 5.17 2676 100.0 62500 9469 1.203 ! Near Maximum !
Raufoss RA15 105.0 89.4 5.80 2676 97.8 54232 10851 1.249
Alliant Reloder-22 105.0 89.4 5.80 2676 97.8 54232 10851 1.249
Bofors RP5/NP ~approximation 105.0 89.4 5.80 2676 97.8 54232 10851 1.249
Norma 203B 91.7 77.3 5.01 2676 100.0 62500 9241 1.201 ! Near Maximum !
Accurate MAGPRO 105.0 94.0 6.09 2674 94.2 53693 11184 1.254
Hodgdon H4831 SC 105.0 89.4 5.80 2671 96.5 59283 10265 1.203 ! Near Maximum !
Norma 203 old 93.0 79.2 5.14 2667 100.0 62500 9105 1.214 ! Near Maximum !
IMR 4320 93.3 77.3 5.01 2662 100.0 62500 8980 1.187 ! Near Maximum !
Rottweil R903 95.1 79.3 5.14 2662 100.0 62500 9022 1.214 ! Near Maximum !
Lovex-S0651 98.7 81.4 5.27 2659 100.0 62500 9392 1.204 ! Near Maximum !
Rottweil R907 97.5 80.6 5.23 2659 99.3 62500 9585 1.199 ! Near Maximum !
IMR 4007 SSC 94.4 80.7 5.23 2658 99.3 62500 9578 1.199 ! Near Maximum !
Somchem S355 95.2 78.5 5.09 2657 100.0 62500 9039 1.208 ! Near Maximum !
Hodgdon VARGET 94.1 76.7 4.97 2647 100.0 62500 9004 1.192 ! Near Maximum !
ADI AR 2208 93.8 76.7 4.97 2647 100.0 62500 9004 1.192 ! Near Maximum !
Hodgdon Hybrid 100V 105.0 82.7 5.36 2643 100.0 59163 8971 1.220 ! Near Maximum !
IMR 4064 94.6 75.3 4.88 2637 100.0 62500 8808 1.197 ! Near Maximum !
Lovex-S0621 92.3 75.7 4.90 2631 100.0 62500 8671 1.211 ! Near Maximum !
Hodgdon H4895 93.8 76.4 4.95 2628 100.0 62500 8509 1.196 ! Near Maximum !
IMR 3031 90.5 71.3 4.62 2625 100.0 62500 8329 1.210 ! Near Maximum !
Accurate 4064 96.9 76.3 4.94 2623 100.0 62500 8515 1.237 ! Near Maximum !
Vihtavuori N150 100.4 79.8 5.17 2617 100.0 62500 8516 1.208 ! Near Maximum !
Rottweil R902 91.3 74.1 4.80 2614 100.0 62500 8521 1.215 ! Near Maximum !
Vihtavuori N540 91.1 77.6 5.03 2614 100.0 62500 8533 1.209 ! Near Maximum !
Accurate 2700 95.5 83.1 5.38 2613 99.2 62500 9036 1.204 ! Near Maximum !
Vihtavuori N140 96.7 78.3 5.07 2612 100.0 62500 8452 1.203 ! Near Maximum !
Ramshot Magnum (Big Boy) 105.0 94.7 6.14 2608 95.5 49705 10855 1.287
Rottweil R905 105.0 87.8 5.69 2608 95.4 52386 10355 1.273
SNPE Vectan SP 12 105.0 94.4 6.12 2600 95.5 49271 10810 1.293
Winchester WXR 105.0 87.5 5.67 2600 96.7 49586 10601 1.302
PB Clermont PCL 517 105.0 94.4 6.12 2595 95.3 48992 10804 1.296
Accurate 2495 90.0 71.7 4.65 2594 100.0 62500 8174 1.246 ! Near Maximum !
Vihtavuori N135 96.5 73.7 4.78 2572 100.0 62500 7830 1.222 ! Near Maximum !
Hodgdon H4831 105.0 86.0 5.57 2560 94.8 51768 9878 1.279
IMR 7828 105.0 86.0 5.57 2560 94.5 47883 10407 1.313
ADI AP 2214 105.0 91.8 5.95 2552 94.6 48987 10285 1.299
Alliant Reloder-25 105.0 88.0 5.70 2545 98.8 44634 10453 1.354
Vihtavuori N165 105.0 87.5 5.67 2537 97.5 50963 9480 1.298
Vihtavuori N160 105.0 84.8 5.50 2525 95.7 52133 9364 1.287
Vihtavuori N133 90.8 70.0 4.54 2520 100.0 62500 7362 1.216 ! Near Maximum !
Norma MRP 2 105.0 88.5 5.73 2453 92.7 40185 10406 1.431
Accurate 3100 105.0 83.7 5.42 2443 98.0 44461 9308 1.410
Vihtavuori N570 105.0 93.3 6.04 2421 84.5 38880 10712 1.449
Hodgdon H1000 105.0 87.5 5.67 2398 91.5 41046 9656 1.412
Hodgdon Retumbo 105.0 89.0 5.76 2345 93.1 35668 10149 1.503
Lovex-D1001 105.0 95.2 6.17 2301 79.4 40414 8745 1.443
Vihtavuori N170 105.0 87.5 5.67 2268 82.9 36986 8831 1.517
Vihtavuori 24N41 105.0 94.2 6.11 2267 75.5 37666 8935 1.484
ADI AR 2218 105.0 94.2 6.11 2262 77.5 35392 9793 1.519
Hodgdon H870 105.0 91.4 5.92 2216 81.5 31218 9562 1.604
Hodgdon 50BMG 105.0 89.8 5.82 2106 67.1 30842 8111 1.626
Hodgdon US 869 105.0 94.2 6.11 2101 70.7 30461 8175 1.636
SNPE Vectan SP 13 105.0 90.4 5.86 2059 75.3 27684 8141 1.704
PB Clermont PCL 513/520/9520 105.0 90.4 5.86 2002 71.6 26171 7787 1.747
Vihtavuori 20N29 105.0 95.2 6.17 1991 68.9 25969 7866 1.749
Accurate 8700 105.0 90.6 5.87 1968 70.7 25779 7587 1.760
NC A3502 ,test only 105.0 86.5 5.61 1855 48.9 25755 5666 1.778
TLP A 502(RH) ,test only 105.0 86.5 5.61 1835 53.1 23944 6058 1.828
V1734 7-multiperf ,test only 105.0 86.5 5.61 1324 24.2 13784 2773 2.352
 
Thanks for the data. I think I'll try W760 and IMR 7828, mostly since they are easily availible and the W760 meters nice.

JT
 
This may help your brass movement at the belt.
We all know that belted mags head space on the belt and not the shoulder.
Take a rag and wrap it aroung your factory case. Take a pair of pliers and shightly squeeze the case in between the shoulder and the belt. Slightly. The rag will protect the brass from the pliers and the out of round case should be slightly difficult to chamber. This will keep the head against the bolt face and keep the shoulder of the brass away from the chamber shoulder. All of your forming should occur in the shoulder and neck area.
I use this method when fire forming my brass. I haven't had the need to fire form a belted mag case but the principal is the same.
I used a dremel tool and cut a couple of pieces of brass in half to inspect the results after I was done. There was no streching in the head area at all.
 
That should work well, the pressure will straighten out the case as it forms. I'll try that. At the moment I am not doing to much with it due to cold weather and waiting on bullets.

JT.
 
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