Load Specifications
Load data in caliber .375 EnABELR with .375 | 300gr | Atomic 29 HP 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% | 54,781 psi | 86% | 2917 fps | 100% |
| Accurate 4350 | <<locked>> | 82% | 55,666 psi | 87% | 2933 fps | 100% |
| Accurate High Country | <<locked>> | 88% | 56,811 psi | 89% | 3091 fps | 100% |
| Accurate MAGPRO | <<locked>> | 90% | 57,682 psi | 90% | 3097 fps | 99.9% |
| ADI AR 2209 | <<locked>> | 88% | 56,840 psi | 89% | 3015 fps | 100% |
| ADI AR 2213 | <<locked>> | 90% | 54,824 psi | 86% | 3031 fps | 100% |
| ADI AR 2217ᴾ | <<locked>> | 100% | 56,811 psi | 89% | 3058 fps | 100% |
| ADI AR 2218ᴾ | <<locked>> | 100% | 49,124 psi | 77% | 3051 fps | 98.1% |
| ADI AR 2225ᴾ | <<locked>> | 100% | 51,126 psi | 80% | 3025 fps | 100% |
| Alliant Power Pro Varmint | <<locked>> | 88% | 56,898 psi | 89% | 3009 fps | 100% |
| Alliant Power Pro Varmint | <<locked>> | 88% | 56,898 psi | 89% | 3009 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 84% | 57,072 psi | 89% | 2989 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 88% | 56,260 psi | 88% | 3002 fps | 100% |
| Alliant Reloder-22 | <<locked>> | 90% | 55,056 psi | 86% | 3022 fps | 100% |
| Alliant Reloder-23 | <<locked>> | 92% | 56,666 psi | 89% | 2972 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 96% | 56,608 psi | 89% | 3051 fps | 100% |
| Alliant Reloder-26 | <<locked>> | 88% | 57,348 psi | 90% | 3074 fps | 100% |
| Alliant Reloder-33ᴾ | <<locked>> | 100% | 53,925 psi | 85% | 3100 fps | 98.9% |
| Alliant Reloder-50ᴾ | <<locked>> | 100% | 45,034 psi | 71% | 2943 fps | 96.7% |
| Baschieri & Pellagri 109 | <<locked>> | 92% | 55,738 psi | 87% | 2992 fps | 99% |
| Bofors RP15 | <<locked>> | 92% | 54,375 psi | 85% | 3012 fps | 100% |
| Bofors RP30 | <<locked>> | 98% | 56,202 psi | 88% | 3074 fps | 100% |
| Bofors RP5 | <<locked>> | 90% | 55,056 psi | 86% | 3022 fps | 100% |
| Bofors RP7 | <<locked>> | 82% | 57,188 psi | 90% | 2933 fps | 100% |
| Hodgdon H1000 | <<locked>> | 96% | 54,462 psi | 85% | 3022 fps | 100% |
| Hodgdon H414 | <<locked>> | 82% | 57,246 psi | 90% | 2995 fps | 100% |
| Hodgdon H4831 | <<locked>> | 88% | 54,346 psi | 85% | 2963 fps | 99.8% |
| Hodgdon H4831 SC | <<locked>> | 90% | 56,956 psi | 89% | 3002 fps | 99.9% |
| Hodgdon Hybrid 100V | <<locked>> | 86% | 57,188 psi | 90% | 2904 fps | 100% |
| Hodgdon Retumbo | <<locked>> | 96% | 55,506 psi | 87% | 3146 fps | 100% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 37,434 psi | 59% | 1847 fps | 100% |
| IMR 4350 | <<locked>> | 84% | 55,738 psi | 87% | 2927 fps | 100% |
| IMR 4831 | <<locked>> | 84% | 56,043 psi | 88% | 2923 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 88% | 55,100 psi | 86% | 2940 fps | 99.9% |
| IMR 7828 SSC | <<locked>> | 92% | 56,826 psi | 89% | 3071 fps | 100% |
| IMR 7977 Enduron | <<locked>> | 96% | 57,116 psi | 90% | 2936 fps | 96.2% |
| IMR 8133 Enduronᴾ | <<locked>> | 100% | 46,499 psi | 73% | 2940 fps | 99.7% |
| Lovex S065 | <<locked>> | 82% | 55,985 psi | 88% | 2897 fps | 100% |
| Lovex S070 | <<locked>> | 82% | 54,360 psi | 85% | 2904 fps | 100% |
| Lovex S071 | <<locked>> | 96% | 56,318 psi | 88% | 2936 fps | 100% |
| Norma 204 | <<locked>> | 84% | 56,884 psi | 89% | 2992 fps | 100% |
| Norma 217ᴾ | <<locked>> | 100% | 47,123 psi | 74% | 2963 fps | 100% |
| Norma MRP | <<locked>> | 88% | 55,114 psi | 86% | 3041 fps | 100% |
| Norma URP | <<locked>> | 84% | 57,725 psi | 90% | 2969 fps | 100% |
| Ramshot Grand | <<locked>> | 90% | 53,853 psi | 84% | 3031 fps | 100% |
| Ramshot Hunter | <<locked>> | 84% | 56,666 psi | 89% | 2986 fps | 100% |
| Ramshot Magnum | <<locked>> | 94% | 56,275 psi | 88% | 3018 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 38,348 psi | 60% | 1893 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 82% | 55,854 psi | 88% | 2959 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 82% | 54,433 psi | 85% | 2992 fps | 100% |
| ReloadSwiss RS 76 | <<locked>> | 96% | 56,173 psi | 88% | 3136 fps | 100% |
| ReloadSwiss RS 80 | <<locked>> | 98% | 55,245 psi | 87% | 3107 fps | 99.9% |
| Rottweil R 904 | <<locked>> | 88% | 57,464 psi | 90% | 2979 fps | 100% |
| Rottweil R 905 | <<locked>> | 88% | 55,854 psi | 88% | 2992 fps | 100% |
| Rottweil R 907 | <<locked>> | 82% | 57,188 psi | 90% | 2933 fps | 100% |
| Shooters World Long Rifle | <<locked>> | 82% | 55,985 psi | 88% | 2897 fps | 100% |
| Shooters World SW4350 | <<locked>> | 82% | 54,360 psi | 85% | 2904 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 82% | 54,897 psi | 86% | 2854 fps | 100% |
| SNPE Vectan Tubal 8000 | <<locked>> | 88% | 55,463 psi | 87% | 2986 fps | 100% |
| Somchem S361 | <<locked>> | 86% | 55,259 psi | 87% | 2917 fps | 99.8% |
| Somchem S365 | <<locked>> | 84% | 55,100 psi | 86% | 2917 fps | 100% |
| Somchem S385 | <<locked>> | 88% | 56,202 psi | 88% | 2959 fps | 100% |
| Vihtavuori N160 | <<locked>> | 82% | 55,753 psi | 87% | 2907 fps | 100% |
| Vihtavuori N165 | <<locked>> | 92% | 56,043 psi | 88% | 2943 fps | 100% |
| Vihtavuori N170 | <<locked>> | 96% | 54,737 psi | 86% | 2972 fps | 97.5% |
| Vihtavuori N550 | <<locked>> | 82% | 54,781 psi | 86% | 2913 fps | 100% |
| Vihtavuori N555 | <<locked>> | 88% | 54,940 psi | 86% | 2949 fps | 100% |
| Vihtavuori N560 | <<locked>> | 88% | 54,752 psi | 86% | 3048 fps | 99.9% |
| Vihtavuori N565 | <<locked>> | 94% | 54,926 psi | 86% | 3035 fps | 100% |
| Vihtavuori N568 | <<locked>> | 98% | 56,130 psi | 88% | 3107 fps | 99.8% |
| Vihtavuori N570ᴾ | <<locked>> | 100% | 57,174 psi | 90% | 3173 fps | 99% |
| Winchester 6.5 StaBALL | <<locked>> | 82% | 55,042 psi | 86% | 2854 fps | 100% |
| Winchester 760 | <<locked>> | 82% | 57,363 psi | 90% | 2999 fps | 100% |
| Winchester StaBALL HD | <<locked>> | 92% | 55,811 psi | 87% | 3068 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 90% | 56,188 psi | 88% | 2959 fps | 100% |
Start Load - Barrel Length: 30"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 3100 | <<locked>> | 80% | 38,957 psi | 61% | 2651 fps | 100% |
| Accurate 4350 | <<locked>> | 80% | 51,982 psi | 81% | 2881 fps | 100% |
| Accurate High Country | <<locked>> | 80% | 42,728 psi | 67% | 2841 fps | 99% |
| Accurate MAGPRO | <<locked>> | 80% | 40,292 psi | 63% | 2782 fps | 97.5% |
| ADI AR 2209 | <<locked>> | 80% | 43,366 psi | 68% | 2785 fps | 99.6% |
| ADI AR 2213 | <<locked>> | 80% | 38,638 psi | 61% | 2726 fps | 98% |
| ADI AR 2217 | <<locked>> | 82% | 30,647 psi | 48% | 2523 fps | 95.5% |
| ADI AR 2218 | <<locked>> | 96% | 42,453 psi | 67% | 2904 fps | 96.1% |
| ADI AR 2225 | <<locked>> | 80% | 25,933 psi | 41% | 2428 fps | 96.3% |
| Alliant Power Pro Varmint | <<locked>> | 80% | 43,743 psi | 69% | 2785 fps | 99.6% |
| Alliant Power Pro Varmint | <<locked>> | 80% | 43,743 psi | 69% | 2785 fps | 99.6% |
| Alliant Reloder-16 | <<locked>> | 80% | 50,053 psi | 78% | 2890 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 80% | 43,337 psi | 68% | 2782 fps | 99.6% |
| Alliant Reloder-22 | <<locked>> | 80% | 39,102 psi | 61% | 2733 fps | 99.1% |
| Alliant Reloder-23 | <<locked>> | 80% | 37,840 psi | 59% | 2671 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 80% | 32,605 psi | 51% | 2612 fps | 99.8% |
| Alliant Reloder-26 | <<locked>> | 80% | 42,308 psi | 66% | 2838 fps | 100% |
| Alliant Reloder-33 | <<locked>> | 92% | 39,755 psi | 62% | 2828 fps | 95.5% |
| Alliant Reloder-50 | <<locked>> | 98% | 41,727 psi | 65% | 2874 fps | 95.7% |
| Baschieri & Pellagri 109 | <<locked>> | 82% | 40,625 psi | 64% | 2703 fps | 95.7% |
| Bofors RP15 | <<locked>> | 80% | 36,376 psi | 57% | 2671 fps | 98.4% |
| Bofors RP30 | <<locked>> | 80% | 29,994 psi | 47% | 2539 fps | 95.7% |
| Bofors RP5 | <<locked>> | 80% | 39,102 psi | 61% | 2733 fps | 99.1% |
| Bofors RP7 | <<locked>> | 80% | 53,737 psi | 84% | 2884 fps | 100% |
| Hodgdon H1000 | <<locked>> | 80% | 31,067 psi | 49% | 2539 fps | 96.4% |
| Hodgdon H414 | <<locked>> | 80% | 53,606 psi | 84% | 2940 fps | 100% |
| Hodgdon H4831 | <<locked>> | 80% | 41,205 psi | 65% | 2726 fps | 98% |
| Hodgdon H4831 SC | <<locked>> | 80% | 40,466 psi | 63% | 2710 fps | 97.9% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 46,963 psi | 74% | 2759 fps | 100% |
| Hodgdon Retumbo | <<locked>> | 80% | 31,778 psi | 50% | 2648 fps | 98% |
| Hodgdon TrailBoss | <<locked>> | 80% | 28,007 psi | 44% | 1650 fps | 100% |
| IMR 4350 | <<locked>> | 80% | 49,124 psi | 77% | 2825 fps | 100% |
| IMR 4831 | <<locked>> | 80% | 49,226 psi | 77% | 2825 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 80% | 42,670 psi | 67% | 2720 fps | 98.4% |
| IMR 7828 SSC | <<locked>> | 80% | 37,318 psi | 58% | 2707 fps | 97.8% |
| IMR 7977 Enduron | <<locked>> | 94% | 53,476 psi | 84% | 2877 fps | 95.5% |
| IMR 8133 Enduron | <<locked>> | 88% | 30,705 psi | 48% | 2582 fps | 95.8% |
| Lovex S065 | <<locked>> | 80% | 52,504 psi | 82% | 2848 fps | 100% |
| Lovex S070 | <<locked>> | 80% | 50,952 psi | 80% | 2851 fps | 100% |
| Lovex S071 | <<locked>> | 80% | 33,417 psi | 52% | 2526 fps | 99.4% |
| Norma 204 | <<locked>> | 80% | 49,676 psi | 78% | 2877 fps | 99.9% |
| Norma 217 | <<locked>> | 82% | 25,048 psi | 39% | 2425 fps | 95.2% |
| Norma MRP | <<locked>> | 80% | 41,278 psi | 65% | 2805 fps | 99.9% |
| Norma URP | <<locked>> | 80% | 50,691 psi | 79% | 2867 fps | 100% |
| Ramshot Grand | <<locked>> | 80% | 37,014 psi | 58% | 2717 fps | 98.1% |
| Ramshot Hunter | <<locked>> | 80% | 49,632 psi | 78% | 2877 fps | 100% |
| Ramshot Magnum | <<locked>> | 80% | 32,953 psi | 52% | 2592 fps | 98.4% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 28,689 psi | 45% | 1693 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 52,141 psi | 82% | 2907 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 50,691 psi | 79% | 2936 fps | 100% |
| ReloadSwiss RS 76 | <<locked>> | 80% | 30,734 psi | 48% | 2621 fps | 98.7% |
| ReloadSwiss RS 80 | <<locked>> | 86% | 34,766 psi | 54% | 2707 fps | 96.1% |
| Rottweil R 904 | <<locked>> | 80% | 44,367 psi | 70% | 2759 fps | 99.1% |
| Rottweil R 905 | <<locked>> | 80% | 42,656 psi | 67% | 2766 fps | 99.6% |
| Rottweil R 907 | <<locked>> | 80% | 53,737 psi | 84% | 2884 fps | 100% |
| Shooters World Long Rifle | <<locked>> | 80% | 52,504 psi | 82% | 2848 fps | 100% |
| Shooters World SW4350 | <<locked>> | 80% | 50,952 psi | 80% | 2851 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 51,430 psi | 81% | 2802 fps | 100% |
| SNPE Vectan Tubal 8000 | <<locked>> | 80% | 42,351 psi | 66% | 2762 fps | 99.5% |
| Somchem S361 | <<locked>> | 80% | 45,150 psi | 71% | 2749 fps | 98.7% |
| Somchem S365 | <<locked>> | 80% | 48,153 psi | 75% | 2815 fps | 100% |
| Somchem S385 | <<locked>> | 80% | 43,076 psi | 68% | 2740 fps | 99.9% |
| Vihtavuori N160 | <<locked>> | 80% | 52,185 psi | 82% | 2854 fps | 100% |
| Vihtavuori N165 | <<locked>> | 80% | 37,550 psi | 59% | 2618 fps | 99.1% |
| Vihtavuori N170 | <<locked>> | 90% | 44,599 psi | 70% | 2789 fps | 95.1% |
| Vihtavuori N550 | <<locked>> | 80% | 51,372 psi | 81% | 2861 fps | 100% |
| Vihtavuori N555 | <<locked>> | 80% | 42,221 psi | 66% | 2746 fps | 100% |
| Vihtavuori N560 | <<locked>> | 80% | 41,234 psi | 65% | 2799 fps | 98.3% |
| Vihtavuori N565 | <<locked>> | 80% | 33,794 psi | 53% | 2615 fps | 96.3% |
| Vihtavuori N568 | <<locked>> | 86% | 36,303 psi | 57% | 2723 fps | 96% |
| Vihtavuori N570 | <<locked>> | 90% | 39,740 psi | 62% | 2841 fps | 95.1% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 51,343 psi | 80% | 2805 fps | 100% |
| Winchester 760 | <<locked>> | 80% | 53,722 psi | 84% | 2943 fps | 100% |
| Winchester StaBALL HD | <<locked>> | 80% | 35,027 psi | 55% | 2726 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 80% | 39,566 psi | 62% | 2674 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 | 300gr | Atomic 29 HP. Vihtavuori N570 delivers the highest muzzle velocity at 3,173 fps; across all powders the maximum-charge window runs from 1,847 fps to 3,173 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 300.0 gr projectile in 0.375" calls for a 1:16.0 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.