Load Specifications
Load data in caliber .375 EnABELR with .375 | 305gr | Hammer Stone Hammer bullet and 75 powders. The key underlying parameters are shown in the table above.
Important Notice: DO NOT go below Minimum Charge or above Maximum Charge. Since we have no control over the equipment and components used, any responsibility and liability for the results achieved is rejected.
Only powders/loads that match the current filter criteria are displayed: max pressure of a load ≤ 90% of max. standardized pressure, fill rate ≥ 80% and propellant combustion ≥ 95%. Use the sliders above the tables to adjust these thresholds.
Charge: Powder weight in grains. Start with the minimum load and work up carefully.
FR (Fill Rate): Case fill as a percentage. Values above 100% mean compressed loads.
MaxP / %: Maximum chamber pressure in bar and as a percentage of the standardized maximum for this caliber.
V(0): Muzzle velocity in feet per second (fps) at the standardized barrel length.
z (Powder Burn): Estimated propellant combustion percentage at bullet exit.
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Max Load - Barrel Length: 30"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 3100 | <<locked>> | 90% | 55,158 psi | 86% | 2884 fps | 100% |
| Accurate 4350 | <<locked>> | 82% | 56,057 psi | 88% | 2904 fps | 100% |
| Accurate High Country | <<locked>> | 88% | 56,840 psi | 89% | 3058 fps | 100% |
| Accurate MAGPRO | <<locked>> | 88% | 53,809 psi | 84% | 3002 fps | 99.7% |
| ADI AR 2209 | <<locked>> | 88% | 56,797 psi | 89% | 2979 fps | 100% |
| ADI AR 2213 | <<locked>> | 90% | 54,810 psi | 86% | 2995 fps | 100% |
| ADI AR 2217ᴾ | <<locked>> | 100% | 56,608 psi | 89% | 3022 fps | 100% |
| ADI AR 2218ᴾ | <<locked>> | 100% | 49,139 psi | 77% | 3015 fps | 98% |
| ADI AR 2225ᴾ | <<locked>> | 100% | 51,039 psi | 80% | 2989 fps | 100% |
| Alliant Power Pro Varmint | <<locked>> | 88% | 56,942 psi | 89% | 2976 fps | 100% |
| Alliant Power Pro Varmint | <<locked>> | 88% | 56,942 psi | 89% | 2976 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 84% | 57,000 psi | 89% | 2956 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 88% | 56,289 psi | 88% | 2969 fps | 100% |
| Alliant Reloder-22 | <<locked>> | 90% | 55,172 psi | 86% | 2992 fps | 100% |
| Alliant Reloder-23 | <<locked>> | 92% | 56,739 psi | 89% | 2940 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 96% | 56,405 psi | 88% | 3018 fps | 100% |
| Alliant Reloder-26 | <<locked>> | 88% | 57,363 psi | 90% | 3041 fps | 100% |
| Alliant Reloder-33ᴾ | <<locked>> | 100% | 53,737 psi | 84% | 3068 fps | 98.8% |
| Alliant Reloder-50ᴾ | <<locked>> | 100% | 45,237 psi | 71% | 2920 fps | 96.8% |
| Baschieri & Pellagri 109 | <<locked>> | 92% | 55,651 psi | 87% | 2956 fps | 98.9% |
| Bofors RP15 | <<locked>> | 92% | 54,375 psi | 85% | 2979 fps | 100% |
| Bofors RP30 | <<locked>> | 98% | 56,130 psi | 88% | 3038 fps | 100% |
| Bofors RP5 | <<locked>> | 90% | 55,172 psi | 86% | 2992 fps | 100% |
| Bofors RP7 | <<locked>> | 82% | 57,377 psi | 90% | 2900 fps | 100% |
| Hodgdon H1000 | <<locked>> | 96% | 54,389 psi | 85% | 2986 fps | 100% |
| Hodgdon H414 | <<locked>> | 82% | 57,421 psi | 90% | 2963 fps | 100% |
| Hodgdon H4831 | <<locked>> | 88% | 54,346 psi | 85% | 2930 fps | 99.8% |
| Hodgdon H4831 SC | <<locked>> | 90% | 57,043 psi | 89% | 2969 fps | 99.9% |
| Hodgdon Hybrid 100V | <<locked>> | 86% | 57,145 psi | 90% | 2871 fps | 100% |
| Hodgdon Retumbo | <<locked>> | 96% | 55,347 psi | 87% | 3114 fps | 100% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 37,550 psi | 59% | 1821 fps | 100% |
| IMR 4350 | <<locked>> | 84% | 55,840 psi | 88% | 2894 fps | 100% |
| IMR 4831 | <<locked>> | 84% | 56,289 psi | 88% | 2894 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 88% | 55,143 psi | 86% | 2907 fps | 99.8% |
| IMR 7828 SSC | <<locked>> | 92% | 56,739 psi | 89% | 3035 fps | 100% |
| IMR 7977 Enduron | <<locked>> | 96% | 57,087 psi | 89% | 2900 fps | 96.2% |
| IMR 8133 Enduronᴾ | <<locked>> | 100% | 46,673 psi | 73% | 2913 fps | 99.7% |
| Lovex S065 | <<locked>> | 82% | 56,217 psi | 88% | 2867 fps | 100% |
| Lovex S070 | <<locked>> | 82% | 54,549 psi | 85% | 2871 fps | 100% |
| Lovex S071 | <<locked>> | 96% | 56,594 psi | 89% | 2904 fps | 100% |
| Norma 204 | <<locked>> | 84% | 56,985 psi | 89% | 2959 fps | 100% |
| Norma 217ᴾ | <<locked>> | 100% | 47,195 psi | 74% | 2933 fps | 100% |
| Norma MRP | <<locked>> | 88% | 55,143 psi | 86% | 3009 fps | 100% |
| Norma URP | <<locked>> | 82% | 54,288 psi | 85% | 2884 fps | 100% |
| Ramshot Grand | <<locked>> | 90% | 53,824 psi | 84% | 2999 fps | 100% |
| Ramshot Hunter | <<locked>> | 84% | 56,855 psi | 89% | 2953 fps | 100% |
| Ramshot Magnum | <<locked>> | 94% | 56,159 psi | 88% | 2982 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 38,421 psi | 60% | 1864 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 82% | 56,086 psi | 88% | 2930 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 82% | 54,418 psi | 85% | 2959 fps | 100% |
| ReloadSwiss RS 76 | <<locked>> | 96% | 55,912 psi | 88% | 3104 fps | 100% |
| ReloadSwiss RS 80 | <<locked>> | 98% | 55,172 psi | 86% | 3074 fps | 99.9% |
| Rottweil R 904 | <<locked>> | 88% | 57,566 psi | 90% | 2943 fps | 100% |
| Rottweil R 905 | <<locked>> | 88% | 55,970 psi | 88% | 2956 fps | 100% |
| Rottweil R 907 | <<locked>> | 82% | 57,377 psi | 90% | 2900 fps | 100% |
| Shooters World Long Rifle | <<locked>> | 82% | 56,217 psi | 88% | 2867 fps | 100% |
| Shooters World SW4350 | <<locked>> | 82% | 54,549 psi | 85% | 2871 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 82% | 55,100 psi | 86% | 2822 fps | 100% |
| SNPE Vectan Tubal 8000 | <<locked>> | 88% | 55,564 psi | 87% | 2953 fps | 100% |
| Somchem S361 | <<locked>> | 86% | 55,332 psi | 87% | 2884 fps | 99.8% |
| Somchem S365 | <<locked>> | 84% | 55,361 psi | 87% | 2887 fps | 100% |
| Somchem S385 | <<locked>> | 88% | 56,333 psi | 88% | 2923 fps | 100% |
| Vihtavuori N160 | <<locked>> | 82% | 55,869 psi | 88% | 2871 fps | 100% |
| Vihtavuori N165 | <<locked>> | 92% | 56,057 psi | 88% | 2907 fps | 100% |
| Vihtavuori N170 | <<locked>> | 96% | 54,781 psi | 86% | 2936 fps | 97.4% |
| Vihtavuori N550 | <<locked>> | 82% | 55,042 psi | 86% | 2881 fps | 100% |
| Vihtavuori N555 | <<locked>> | 88% | 55,317 psi | 87% | 2920 fps | 100% |
| Vihtavuori N560 | <<locked>> | 88% | 54,723 psi | 86% | 3015 fps | 99.9% |
| Vihtavuori N565 | <<locked>> | 94% | 55,056 psi | 86% | 3002 fps | 100% |
| Vihtavuori N568 | <<locked>> | 98% | 56,057 psi | 88% | 3074 fps | 99.8% |
| Vihtavuori N570ᴾ | <<locked>> | 100% | 57,029 psi | 89% | 3140 fps | 99% |
| Winchester 6.5 StaBALL | <<locked>> | 82% | 55,114 psi | 86% | 2822 fps | 100% |
| Winchester 760 | <<locked>> | 82% | 57,551 psi | 90% | 2963 fps | 100% |
| Winchester StaBALL HD | <<locked>> | 92% | 55,796 psi | 87% | 3038 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 90% | 56,188 psi | 88% | 2923 fps | 100% |
Start Load - Barrel Length: 30"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 3100 | <<locked>> | 80% | 39,595 psi | 62% | 2628 fps | 100% |
| Accurate 4350 | <<locked>> | 80% | 52,402 psi | 82% | 2851 fps | 100% |
| Accurate High Country | <<locked>> | 80% | 43,091 psi | 68% | 2818 fps | 99.1% |
| Accurate MAGPRO | <<locked>> | 80% | 40,596 psi | 64% | 2756 fps | 97.6% |
| ADI AR 2209 | <<locked>> | 80% | 43,526 psi | 68% | 2756 fps | 99.6% |
| ADI AR 2213 | <<locked>> | 80% | 38,928 psi | 61% | 2703 fps | 98.1% |
| ADI AR 2217 | <<locked>> | 82% | 31,024 psi | 49% | 2503 fps | 95.7% |
| ADI AR 2218 | <<locked>> | 96% | 42,641 psi | 67% | 2874 fps | 96.1% |
| ADI AR 2225 | <<locked>> | 80% | 26,455 psi | 41% | 2418 fps | 96.7% |
| Alliant Power Pro Varmint | <<locked>> | 80% | 43,947 psi | 69% | 2759 fps | 99.6% |
| Alliant Power Pro Varmint | <<locked>> | 80% | 43,947 psi | 69% | 2759 fps | 99.6% |
| Alliant Reloder-16 | <<locked>> | 80% | 50,169 psi | 79% | 2854 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 80% | 43,540 psi | 68% | 2753 fps | 99.6% |
| Alliant Reloder-22 | <<locked>> | 80% | 39,465 psi | 62% | 2710 fps | 99.2% |
| Alliant Reloder-23 | <<locked>> | 80% | 38,232 psi | 60% | 2648 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 80% | 32,996 psi | 52% | 2592 fps | 99.9% |
| Alliant Reloder-26 | <<locked>> | 80% | 42,656 psi | 67% | 2815 fps | 100% |
| Alliant Reloder-33 | <<locked>> | 92% | 40,045 psi | 63% | 2805 fps | 95.7% |
| Alliant Reloder-50 | <<locked>> | 98% | 42,003 psi | 66% | 2851 fps | 95.8% |
| Baschieri & Pellagri 109 | <<locked>> | 82% | 40,843 psi | 64% | 2677 fps | 95.7% |
| Bofors RP15 | <<locked>> | 80% | 36,724 psi | 58% | 2648 fps | 98.5% |
| Bofors RP30 | <<locked>> | 80% | 30,501 psi | 48% | 2526 fps | 96% |
| Bofors RP5 | <<locked>> | 80% | 39,465 psi | 62% | 2710 fps | 99.2% |
| Bofors RP7 | <<locked>> | 80% | 53,998 psi | 85% | 2851 fps | 100% |
| Hodgdon H1000 | <<locked>> | 80% | 31,488 psi | 49% | 2520 fps | 96.6% |
| Hodgdon H414 | <<locked>> | 80% | 53,722 psi | 84% | 2907 fps | 100% |
| Hodgdon H4831 | <<locked>> | 80% | 41,481 psi | 65% | 2700 fps | 98.1% |
| Hodgdon H4831 SC | <<locked>> | 80% | 40,770 psi | 64% | 2684 fps | 97.9% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 47,210 psi | 74% | 2730 fps | 100% |
| Hodgdon Retumbo | <<locked>> | 80% | 32,198 psi | 50% | 2631 fps | 98.2% |
| Hodgdon TrailBoss | <<locked>> | 80% | 28,152 psi | 44% | 1627 fps | 100% |
| IMR 4350 | <<locked>> | 80% | 49,255 psi | 77% | 2792 fps | 100% |
| IMR 4831 | <<locked>> | 80% | 49,487 psi | 78% | 2795 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 80% | 42,873 psi | 67% | 2690 fps | 98.5% |
| IMR 7828 SSC | <<locked>> | 80% | 37,608 psi | 59% | 2684 fps | 97.9% |
| IMR 7977 Enduron | <<locked>> | 94% | 53,534 psi | 84% | 2844 fps | 95.4% |
| IMR 8133 Enduron | <<locked>> | 86% | 29,298 psi | 46% | 2513 fps | 95.1% |
| Lovex S065 | <<locked>> | 80% | 52,823 psi | 83% | 2815 fps | 100% |
| Lovex S070 | <<locked>> | 80% | 51,198 psi | 80% | 2818 fps | 100% |
| Lovex S071 | <<locked>> | 80% | 34,142 psi | 54% | 2513 fps | 99.5% |
| Norma 204 | <<locked>> | 80% | 49,806 psi | 78% | 2844 fps | 99.9% |
| Norma 217 | <<locked>> | 82% | 25,701 psi | 40% | 2421 fps | 95.7% |
| Norma MRP | <<locked>> | 80% | 41,611 psi | 65% | 2779 fps | 99.9% |
| Norma URP | <<locked>> | 80% | 50,865 psi | 80% | 2835 fps | 100% |
| Ramshot Grand | <<locked>> | 80% | 37,333 psi | 59% | 2690 fps | 98.2% |
| Ramshot Hunter | <<locked>> | 80% | 49,806 psi | 78% | 2844 fps | 100% |
| Ramshot Magnum | <<locked>> | 80% | 33,446 psi | 52% | 2575 fps | 98.6% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 28,892 psi | 45% | 1667 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 52,446 psi | 82% | 2877 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 50,720 psi | 79% | 2904 fps | 100% |
| ReloadSwiss RS 76 | <<locked>> | 80% | 31,241 psi | 49% | 2605 fps | 98.9% |
| ReloadSwiss RS 80 | <<locked>> | 84% | 32,721 psi | 51% | 2621 fps | 95.2% |
| Rottweil R 904 | <<locked>> | 80% | 44,614 psi | 70% | 2730 fps | 99.1% |
| Rottweil R 905 | <<locked>> | 80% | 43,047 psi | 67% | 2740 fps | 99.6% |
| Rottweil R 907 | <<locked>> | 80% | 53,998 psi | 85% | 2851 fps | 100% |
| Shooters World Long Rifle | <<locked>> | 80% | 52,823 psi | 83% | 2815 fps | 100% |
| Shooters World SW4350 | <<locked>> | 80% | 51,198 psi | 80% | 2818 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 51,706 psi | 81% | 2769 fps | 100% |
| SNPE Vectan Tubal 8000 | <<locked>> | 80% | 42,714 psi | 67% | 2736 fps | 99.6% |
| Somchem S361 | <<locked>> | 80% | 45,411 psi | 71% | 2720 fps | 98.8% |
| Somchem S365 | <<locked>> | 80% | 48,414 psi | 76% | 2789 fps | 100% |
| Somchem S385 | <<locked>> | 80% | 43,482 psi | 68% | 2713 fps | 99.9% |
| Vihtavuori N160 | <<locked>> | 80% | 52,373 psi | 82% | 2822 fps | 100% |
| Vihtavuori N165 | <<locked>> | 80% | 37,898 psi | 59% | 2595 fps | 99.1% |
| Vihtavuori N170 | <<locked>> | 90% | 44,875 psi | 70% | 2762 fps | 95.2% |
| Vihtavuori N550 | <<locked>> | 80% | 51,561 psi | 81% | 2831 fps | 100% |
| Vihtavuori N555 | <<locked>> | 80% | 42,641 psi | 67% | 2720 fps | 100% |
| Vihtavuori N560 | <<locked>> | 80% | 41,510 psi | 65% | 2772 fps | 98.4% |
| Vihtavuori N565 | <<locked>> | 80% | 34,316 psi | 54% | 2595 fps | 96.6% |
| Vihtavuori N568 | <<locked>> | 84% | 34,113 psi | 53% | 2641 fps | 95.1% |
| Vihtavuori N570 | <<locked>> | 90% | 39,958 psi | 63% | 2815 fps | 95.2% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 51,488 psi | 81% | 2772 fps | 100% |
| Winchester 760 | <<locked>> | 80% | 53,838 psi | 84% | 2910 fps | 100% |
| Winchester StaBALL HD | <<locked>> | 80% | 35,375 psi | 55% | 2710 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 80% | 39,943 psi | 63% | 2648 fps | 99.1% |
ᴾ possible press load - work up slowly to this load while watching for signs of excessive pressure.
This overview compares 75 powders for .375 EnABELR loaded with the .375 | 305gr | Hammer Stone Hammer. Vihtavuori N570 delivers the highest muzzle velocity at 3,140 fps; across all powders the maximum-charge window runs from 1,821 fps to 3,140 fps. ADI AR 2217 gives the best case fill at 100 %, and 75 of the 75 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (440 MPa), the top charges use 59–90 %, leaving at least 10 % headroom. The 305.0 gr projectile in 0.375" calls for a 1:17.0 twist; slower twists will usually not stabilise this weight. ADI AR 2217, ADI AR 2218, ADI AR 2225 reach 100 % fill or more at maximum charge, so these are compressed loads: they need a long drop tube to seat cleanly and react sensitively to the case capacity of your own brass lot. Always begin at the start load and work up in small increments while checking case and primer for pressure signs.