Load Specifications
Load data in caliber .375 EnABELR with .375 | 300gr | Sierra GameKing 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% | 54,897 psi | 86% | 2904 fps | 100% |
| Accurate 4350 | <<locked>> | 82% | 55,680 psi | 87% | 2923 fps | 100% |
| Accurate High Country | <<locked>> | 88% | 56,521 psi | 89% | 3077 fps | 100% |
| Accurate MAGPRO | <<locked>> | 90% | 57,464 psi | 90% | 3084 fps | 99.8% |
| ADI AR 2209 | <<locked>> | 88% | 56,521 psi | 89% | 2999 fps | 100% |
| ADI AR 2213 | <<locked>> | 90% | 54,462 psi | 85% | 3015 fps | 100% |
| ADI AR 2217ᴾ | <<locked>> | 100% | 56,347 psi | 88% | 3041 fps | 100% |
| ADI AR 2218ᴾ | <<locked>> | 100% | 48,907 psi | 77% | 3031 fps | 97.8% |
| ADI AR 2225ᴾ | <<locked>> | 100% | 50,836 psi | 80% | 3009 fps | 100% |
| Alliant Power Pro Varmint | <<locked>> | 88% | 56,681 psi | 89% | 2995 fps | 100% |
| Alliant Power Pro Varmint | <<locked>> | 88% | 56,681 psi | 89% | 2995 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 84% | 56,855 psi | 89% | 2979 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 88% | 56,028 psi | 88% | 2989 fps | 100% |
| Alliant Reloder-22 | <<locked>> | 90% | 54,853 psi | 86% | 3009 fps | 100% |
| Alliant Reloder-23 | <<locked>> | 92% | 56,405 psi | 88% | 2963 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 96% | 56,101 psi | 88% | 3038 fps | 100% |
| Alliant Reloder-26 | <<locked>> | 88% | 57,101 psi | 89% | 3064 fps | 100% |
| Alliant Reloder-33ᴾ | <<locked>> | 100% | 53,417 psi | 84% | 3087 fps | 98.7% |
| Alliant Reloder-50ᴾ | <<locked>> | 100% | 44,918 psi | 70% | 2933 fps | 96.5% |
| Baschieri & Pellagri 109 | <<locked>> | 92% | 55,448 psi | 87% | 2979 fps | 98.8% |
| Bofors RP15 | <<locked>> | 94% | 57,653 psi | 90% | 3051 fps | 100% |
| Bofors RP30 | <<locked>> | 98% | 55,796 psi | 87% | 3058 fps | 100% |
| Bofors RP5 | <<locked>> | 90% | 54,853 psi | 86% | 3009 fps | 100% |
| Bofors RP7 | <<locked>> | 82% | 57,130 psi | 90% | 2920 fps | 100% |
| Hodgdon H1000 | <<locked>> | 96% | 54,114 psi | 85% | 3009 fps | 100% |
| Hodgdon H414 | <<locked>> | 82% | 57,058 psi | 89% | 2982 fps | 100% |
| Hodgdon H4831 | <<locked>> | 88% | 54,056 psi | 85% | 2946 fps | 99.7% |
| Hodgdon H4831 SC | <<locked>> | 90% | 56,710 psi | 89% | 2989 fps | 99.9% |
| Hodgdon Hybrid 100V | <<locked>> | 86% | 56,956 psi | 89% | 2890 fps | 100% |
| Hodgdon Retumbo | <<locked>> | 96% | 55,042 psi | 86% | 3130 fps | 100% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 37,478 psi | 59% | 1837 fps | 100% |
| IMR 4350 | <<locked>> | 84% | 55,521 psi | 87% | 2913 fps | 100% |
| IMR 4831 | <<locked>> | 84% | 55,970 psi | 88% | 2913 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 88% | 54,926 psi | 86% | 2927 fps | 99.8% |
| IMR 7828 SSC | <<locked>> | 92% | 56,521 psi | 89% | 3054 fps | 100% |
| IMR 7977 Enduron | <<locked>> | 96% | 56,753 psi | 89% | 2917 fps | 96% |
| IMR 8133 Enduronᴾ | <<locked>> | 100% | 46,383 psi | 73% | 2930 fps | 99.7% |
| Lovex S065 | <<locked>> | 82% | 55,956 psi | 88% | 2887 fps | 100% |
| Lovex S070 | <<locked>> | 82% | 54,375 psi | 85% | 2890 fps | 100% |
| Lovex S071 | <<locked>> | 96% | 56,405 psi | 88% | 2927 fps | 100% |
| Norma 204 | <<locked>> | 84% | 56,637 psi | 89% | 2979 fps | 100% |
| Norma 217ᴾ | <<locked>> | 100% | 46,992 psi | 74% | 2953 fps | 100% |
| Norma MRP | <<locked>> | 88% | 54,752 psi | 86% | 3028 fps | 100% |
| Norma URP | <<locked>> | 84% | 57,696 psi | 90% | 2959 fps | 100% |
| Ramshot Grand | <<locked>> | 92% | 57,479 psi | 90% | 3074 fps | 100% |
| Ramshot Hunter | <<locked>> | 84% | 56,449 psi | 88% | 2972 fps | 100% |
| Ramshot Magnum | <<locked>> | 94% | 55,796 psi | 87% | 3002 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 38,450 psi | 60% | 1883 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 82% | 55,825 psi | 87% | 2949 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 82% | 54,143 psi | 85% | 2979 fps | 100% |
| ReloadSwiss RS 76 | <<locked>> | 96% | 55,680 psi | 87% | 3123 fps | 100% |
| ReloadSwiss RS 80 | <<locked>> | 98% | 54,868 psi | 86% | 3091 fps | 99.8% |
| Rottweil R 904 | <<locked>> | 88% | 57,348 psi | 90% | 2966 fps | 100% |
| Rottweil R 905 | <<locked>> | 88% | 55,709 psi | 87% | 2976 fps | 100% |
| Rottweil R 907 | <<locked>> | 82% | 57,130 psi | 90% | 2920 fps | 100% |
| Shooters World Long Rifle | <<locked>> | 82% | 55,956 psi | 88% | 2887 fps | 100% |
| Shooters World SW4350 | <<locked>> | 82% | 54,375 psi | 85% | 2890 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 82% | 54,955 psi | 86% | 2841 fps | 100% |
| SNPE Vectan Tubal 8000 | <<locked>> | 88% | 55,303 psi | 87% | 2976 fps | 100% |
| Somchem S361 | <<locked>> | 86% | 55,027 psi | 86% | 2904 fps | 99.7% |
| Somchem S365 | <<locked>> | 84% | 54,955 psi | 86% | 2907 fps | 100% |
| Somchem S385 | <<locked>> | 88% | 56,173 psi | 88% | 2946 fps | 100% |
| Vihtavuori N160 | <<locked>> | 82% | 55,564 psi | 87% | 2890 fps | 100% |
| Vihtavuori N165 | <<locked>> | 92% | 55,767 psi | 87% | 2927 fps | 100% |
| Vihtavuori N170 | <<locked>> | 96% | 54,607 psi | 86% | 2956 fps | 97.3% |
| Vihtavuori N550 | <<locked>> | 82% | 54,853 psi | 86% | 2904 fps | 100% |
| Vihtavuori N555 | <<locked>> | 88% | 54,926 psi | 86% | 2940 fps | 100% |
| Vihtavuori N560 | <<locked>> | 88% | 54,418 psi | 85% | 3031 fps | 99.9% |
| Vihtavuori N565 | <<locked>> | 94% | 54,781 psi | 86% | 3018 fps | 99.9% |
| Vihtavuori N568 | <<locked>> | 98% | 55,680 psi | 87% | 3091 fps | 99.7% |
| Vihtavuori N570ᴾ | <<locked>> | 100% | 56,739 psi | 89% | 3156 fps | 98.9% |
| Winchester 6.5 StaBALL | <<locked>> | 82% | 54,853 psi | 86% | 2841 fps | 100% |
| Winchester 760 | <<locked>> | 82% | 57,188 psi | 90% | 2982 fps | 100% |
| Winchester StaBALL HD | <<locked>> | 92% | 55,492 psi | 87% | 3058 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 90% | 55,854 psi | 88% | 2943 fps | 100% |
Start Load - Barrel Length: 30"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 3100 | <<locked>> | 80% | 39,334 psi | 62% | 2644 fps | 100% |
| Accurate 4350 | <<locked>> | 80% | 52,098 psi | 82% | 2871 fps | 100% |
| Accurate High Country | <<locked>> | 80% | 42,902 psi | 67% | 2835 fps | 99% |
| Accurate MAGPRO | <<locked>> | 80% | 40,422 psi | 63% | 2772 fps | 97.4% |
| ADI AR 2209 | <<locked>> | 80% | 43,279 psi | 68% | 2776 fps | 99.5% |
| ADI AR 2213 | <<locked>> | 80% | 38,696 psi | 61% | 2717 fps | 97.9% |
| ADI AR 2217 | <<locked>> | 82% | 30,908 psi | 48% | 2516 fps | 95.4% |
| ADI AR 2218 | <<locked>> | 96% | 42,380 psi | 66% | 2887 fps | 95.8% |
| ADI AR 2225 | <<locked>> | 80% | 26,368 psi | 41% | 2434 fps | 96.5% |
| Alliant Power Pro Varmint | <<locked>> | 80% | 43,700 psi | 68% | 2776 fps | 99.5% |
| Alliant Power Pro Varmint | <<locked>> | 80% | 43,700 psi | 68% | 2776 fps | 99.5% |
| Alliant Reloder-16 | <<locked>> | 80% | 49,922 psi | 78% | 2877 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 80% | 43,294 psi | 68% | 2769 fps | 99.5% |
| Alliant Reloder-22 | <<locked>> | 80% | 39,218 psi | 61% | 2726 fps | 99% |
| Alliant Reloder-23 | <<locked>> | 80% | 38,014 psi | 60% | 2667 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 80% | 32,808 psi | 51% | 2608 fps | 99.8% |
| Alliant Reloder-26 | <<locked>> | 80% | 42,366 psi | 66% | 2831 fps | 100% |
| Alliant Reloder-33 | <<locked>> | 92% | 39,769 psi | 62% | 2822 fps | 95.4% |
| Alliant Reloder-50 | <<locked>> | 98% | 41,713 psi | 65% | 2867 fps | 95.6% |
| Baschieri & Pellagri 109 | <<locked>> | 82% | 40,683 psi | 64% | 2694 fps | 95.5% |
| Bofors RP15 | <<locked>> | 80% | 36,593 psi | 57% | 2667 fps | 98.4% |
| Bofors RP30 | <<locked>> | 80% | 30,284 psi | 47% | 2539 fps | 95.7% |
| Bofors RP5 | <<locked>> | 80% | 39,218 psi | 61% | 2726 fps | 99% |
| Bofors RP7 | <<locked>> | 80% | 53,766 psi | 84% | 2871 fps | 100% |
| Hodgdon H1000 | <<locked>> | 80% | 31,299 psi | 49% | 2533 fps | 96.3% |
| Hodgdon H414 | <<locked>> | 80% | 53,447 psi | 84% | 2930 fps | 100% |
| Hodgdon H4831 | <<locked>> | 80% | 41,263 psi | 65% | 2717 fps | 97.9% |
| Hodgdon H4831 SC | <<locked>> | 80% | 40,524 psi | 64% | 2700 fps | 97.8% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 46,978 psi | 74% | 2749 fps | 100% |
| Hodgdon Retumbo | <<locked>> | 80% | 32,097 psi | 50% | 2648 fps | 98% |
| Hodgdon TrailBoss | <<locked>> | 80% | 28,166 psi | 44% | 1644 fps | 100% |
| IMR 4350 | <<locked>> | 80% | 49,023 psi | 77% | 2808 fps | 100% |
| IMR 4831 | <<locked>> | 80% | 49,226 psi | 77% | 2812 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 80% | 42,656 psi | 67% | 2707 fps | 98.3% |
| IMR 7828 SSC | <<locked>> | 80% | 37,478 psi | 59% | 2700 fps | 97.7% |
| IMR 7977 Enduron | <<locked>> | 94% | 53,229 psi | 83% | 2861 fps | 95.2% |
| IMR 8133 Enduron | <<locked>> | 88% | 31,053 psi | 49% | 2582 fps | 95.8% |
| Lovex S065 | <<locked>> | 80% | 52,605 psi | 82% | 2835 fps | 100% |
| Lovex S070 | <<locked>> | 80% | 51,082 psi | 80% | 2841 fps | 100% |
| Lovex S071 | <<locked>> | 80% | 33,968 psi | 53% | 2530 fps | 99.4% |
| Norma 204 | <<locked>> | 80% | 49,516 psi | 78% | 2864 fps | 99.9% |
| Norma 217 | <<locked>> | 82% | 25,527 psi | 40% | 2431 fps | 95.4% |
| Norma MRP | <<locked>> | 80% | 41,423 psi | 65% | 2795 fps | 99.9% |
| Norma URP | <<locked>> | 80% | 50,720 psi | 79% | 2854 fps | 100% |
| Ramshot Grand | <<locked>> | 80% | 37,173 psi | 58% | 2710 fps | 98% |
| Ramshot Hunter | <<locked>> | 80% | 49,501 psi | 78% | 2864 fps | 100% |
| Ramshot Magnum | <<locked>> | 80% | 33,214 psi | 52% | 2585 fps | 98.4% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 28,877 psi | 45% | 1683 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 52,098 psi | 82% | 2897 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 50,386 psi | 79% | 2923 fps | 100% |
| ReloadSwiss RS 76 | <<locked>> | 80% | 31,082 psi | 49% | 2618 fps | 98.7% |
| ReloadSwiss RS 80 | <<locked>> | 86% | 34,896 psi | 55% | 2700 fps | 96% |
| Rottweil R 904 | <<locked>> | 80% | 44,396 psi | 70% | 2746 fps | 99% |
| Rottweil R 905 | <<locked>> | 80% | 42,801 psi | 67% | 2756 fps | 99.5% |
| Rottweil R 907 | <<locked>> | 80% | 53,766 psi | 84% | 2871 fps | 100% |
| Shooters World Long Rifle | <<locked>> | 80% | 52,605 psi | 82% | 2835 fps | 100% |
| Shooters World SW4350 | <<locked>> | 80% | 51,082 psi | 80% | 2841 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 51,445 psi | 81% | 2789 fps | 100% |
| SNPE Vectan Tubal 8000 | <<locked>> | 80% | 42,467 psi | 67% | 2753 fps | 99.5% |
| Somchem S361 | <<locked>> | 80% | 45,136 psi | 71% | 2736 fps | 98.6% |
| Somchem S365 | <<locked>> | 80% | 48,124 psi | 75% | 2808 fps | 100% |
| Somchem S385 | <<locked>> | 80% | 43,265 psi | 68% | 2733 fps | 99.8% |
| Vihtavuori N160 | <<locked>> | 80% | 52,083 psi | 82% | 2841 fps | 100% |
| Vihtavuori N165 | <<locked>> | 80% | 37,710 psi | 59% | 2612 fps | 99% |
| Vihtavuori N170 | <<locked>> | 92% | 47,732 psi | 75% | 2838 fps | 95.8% |
| Vihtavuori N550 | <<locked>> | 80% | 51,416 psi | 81% | 2851 fps | 100% |
| Vihtavuori N555 | <<locked>> | 80% | 42,395 psi | 66% | 2740 fps | 100% |
| Vihtavuori N560 | <<locked>> | 80% | 41,336 psi | 65% | 2792 fps | 98.2% |
| Vihtavuori N565 | <<locked>> | 80% | 34,142 psi | 54% | 2612 fps | 96.4% |
| Vihtavuori N568 | <<locked>> | 86% | 36,419 psi | 57% | 2720 fps | 95.9% |
| Vihtavuori N570 | <<locked>> | 92% | 42,627 psi | 67% | 2897 fps | 95.9% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 51,285 psi | 80% | 2795 fps | 100% |
| Winchester 760 | <<locked>> | 80% | 53,693 psi | 84% | 2933 fps | 100% |
| Winchester StaBALL HD | <<locked>> | 80% | 35,027 psi | 55% | 2723 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 80% | 39,711 psi | 62% | 2664 fps | 99% |
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 | Sierra GameKing. Vihtavuori N570 delivers the highest muzzle velocity at 3,156 fps; across all powders the maximum-charge window runs from 1,837 fps to 3,156 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 1:6.0 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.