Load Specifications
Load data in caliber .30-378 Weath. Mag. with .311 | 180gr | Sellier & Bellot FMJ bullet and 51 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are ADI AR 2218, Vihtavuori N570 and Alliant Reloder-33.
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: 26"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 3100 | <<locked>> | 86% | 57,377 psi | 90% | 3054 fps | 100% |
| Accurate 8700ᴾ | <<locked>> | 100% | 48,805 psi | 76% | 3012 fps | 96.6% |
| Accurate MAGPRO | <<locked>> | 84% | 56,478 psi | 89% | 3169 fps | 99.6% |
| ADI AR 2209 | <<locked>> | 82% | 54,578 psi | 86% | 3084 fps | 100% |
| ADI AR 2213 | <<locked>> | 86% | 57,174 psi | 90% | 3163 fps | 100% |
| ADI AR 2217 | <<locked>> | 94% | 56,391 psi | 88% | 3143 fps | 100% |
| ADI AR 2218 | <<locked>> | 98% | 56,855 psi | 89% | 3274 fps | 99% |
| ADI AR 2225 | <<locked>> | 96% | 55,782 psi | 87% | 3169 fps | 100% |
| Alliant Power Pro Varmint | <<locked>> | 82% | 54,810 psi | 86% | 3081 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 82% | 54,273 psi | 85% | 3074 fps | 100% |
| Alliant Reloder-22 | <<locked>> | 86% | 57,682 psi | 90% | 3156 fps | 100% |
| Alliant Reloder-23 | <<locked>> | 86% | 55,854 psi | 88% | 3054 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 90% | 56,550 psi | 89% | 3136 fps | 100% |
| Alliant Reloder-26 | <<locked>> | 82% | 56,536 psi | 89% | 3146 fps | 100% |
| Alliant Reloder-33 | <<locked>> | 94% | 54,795 psi | 86% | 3179 fps | 98.4% |
| Alliant Reloder-50 | <<locked>> | 98% | 54,737 psi | 86% | 3166 fps | 98% |
| Baschieri & Pellagri 109 | <<locked>> | 88% | 57,406 psi | 90% | 3120 fps | 98.9% |
| Bofors RP15 | <<locked>> | 88% | 57,043 psi | 89% | 3146 fps | 100% |
| Bofors RP30 | <<locked>> | 92% | 56,391 psi | 88% | 3159 fps | 100% |
| Bofors RP5 | <<locked>> | 86% | 57,682 psi | 90% | 3156 fps | 100% |
| Hodgdon H1000 | <<locked>> | 90% | 53,780 psi | 84% | 3100 fps | 100% |
| Hodgdon H4831 | <<locked>> | 84% | 55,840 psi | 88% | 3091 fps | 99.7% |
| Hodgdon H4831 SC | <<locked>> | 84% | 54,839 psi | 86% | 3074 fps | 99.6% |
| Hodgdon Retumbo | <<locked>> | 90% | 56,014 psi | 88% | 3232 fps | 100% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 37,898 psi | 59% | 2008 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 84% | 55,941 psi | 88% | 3068 fps | 99.8% |
| IMR 7828 SSC | <<locked>> | 86% | 55,608 psi | 87% | 3146 fps | 99.9% |
| IMR 8133 Enduron | <<locked>> | 98% | 54,708 psi | 86% | 3146 fps | 100% |
| Lovex S071 | <<locked>> | 90% | 55,753 psi | 87% | 3028 fps | 100% |
| Norma 217 | <<locked>> | 98% | 56,202 psi | 88% | 3173 fps | 100% |
| Norma MRP | <<locked>> | 82% | 53,911 psi | 84% | 3110 fps | 100% |
| Ramshot Grand | <<locked>> | 86% | 57,087 psi | 89% | 3173 fps | 100% |
| Ramshot Magnum | <<locked>> | 88% | 55,579 psi | 87% | 3094 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 38,870 psi | 61% | 2054 fps | 100% |
| ReloadSwiss RS 76 | <<locked>> | 90% | 56,811 psi | 89% | 3215 fps | 100% |
| ReloadSwiss RS 80 | <<locked>> | 92% | 56,072 psi | 88% | 3182 fps | 99.7% |
| Rottweil R 904 | <<locked>> | 82% | 54,969 psi | 86% | 3054 fps | 99.8% |
| Rottweil R 905 | <<locked>> | 84% | 57,740 psi | 90% | 3127 fps | 100% |
| SNPE Vectan SP 13ᴾ | <<locked>> | 100% | 50,749 psi | 80% | 3025 fps | 96.7% |
| SNPE Vectan Tubal 8000 | <<locked>> | 84% | 57,348 psi | 90% | 3120 fps | 100% |
| Somchem S361 | <<locked>> | 82% | 56,217 psi | 88% | 3041 fps | 99.7% |
| Somchem S385 | <<locked>> | 82% | 54,346 psi | 85% | 3031 fps | 100% |
| Vihtavuori N165 | <<locked>> | 86% | 54,433 psi | 85% | 3022 fps | 100% |
| Vihtavuori N170 | <<locked>> | 92% | 57,522 psi | 90% | 3110 fps | 97.5% |
| Vihtavuori N555 | <<locked>> | 84% | 57,609 psi | 90% | 3087 fps | 100% |
| Vihtavuori N560 | <<locked>> | 84% | 57,188 psi | 90% | 3179 fps | 99.8% |
| Vihtavuori N565 | <<locked>> | 88% | 54,723 psi | 86% | 3114 fps | 99.8% |
| Vihtavuori N568 | <<locked>> | 92% | 56,333 psi | 88% | 3186 fps | 99.5% |
| Vihtavuori N570 | <<locked>> | 92% | 53,911 psi | 84% | 3186 fps | 97.9% |
| Winchester StaBALL HD | <<locked>> | 86% | 56,695 psi | 89% | 3153 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 84% | 54,070 psi | 85% | 3028 fps | 100% |
Recommended = one of the top powders for this cartridge and bullet combination.
Start Load - Barrel Length: 26"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 3100 | <<locked>> | 80% | 46,891 psi | 73% | 2881 fps | 100% |
| Accurate 8700 | <<locked>> | 98% | 45,252 psi | 71% | 2940 fps | 95.5% |
| Accurate MAGPRO | <<locked>> | 80% | 49,023 psi | 77% | 3031 fps | 98.6% |
| ADI AR 2209 | <<locked>> | 80% | 50,937 psi | 80% | 3022 fps | 99.9% |
| ADI AR 2213 | <<locked>> | 80% | 46,267 psi | 73% | 2966 fps | 98.9% |
| ADI AR 2217 | <<locked>> | 80% | 34,592 psi | 54% | 2697 fps | 96.1% |
| ADI AR 2218 | 108.1 gr | 90% | 42,293 psi | 66% | 2963 fps | 95% |
| ADI AR 2225 | <<locked>> | 80% | 31,865 psi | 50% | 2664 fps | 98% |
| Alliant Power Pro Varmint | <<locked>> | 80% | 51,256 psi | 80% | 3022 fps | 99.9% |
| Alliant Reloder-19 | <<locked>> | 80% | 50,763 psi | 80% | 3012 fps | 99.9% |
| Alliant Reloder-22 | <<locked>> | 80% | 47,036 psi | 74% | 2972 fps | 99.7% |
| Alliant Reloder-23 | <<locked>> | 80% | 45,861 psi | 72% | 2897 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 80% | 39,929 psi | 63% | 2841 fps | 100% |
| Alliant Reloder-26 | <<locked>> | 80% | 52,533 psi | 82% | 3084 fps | 100% |
| Alliant Reloder-33 | 107.7 gr | 88% | 43,772 psi | 69% | 2959 fps | 95.6% |
| Alliant Reloder-50 | <<locked>> | 92% | 43,772 psi | 69% | 2949 fps | 95% |
| Baschieri & Pellagri 109 | <<locked>> | 80% | 44,063 psi | 69% | 2871 fps | 96.1% |
| Bofors RP15 | <<locked>> | 80% | 43,874 psi | 69% | 2904 fps | 99.2% |
| Bofors RP30 | <<locked>> | 80% | 37,318 psi | 58% | 2776 fps | 97.1% |
| Bofors RP5 | <<locked>> | 80% | 47,036 psi | 74% | 2972 fps | 99.7% |
| Hodgdon H1000 | <<locked>> | 80% | 37,594 psi | 59% | 2776 fps | 97.8% |
| Hodgdon H4831 | <<locked>> | 80% | 48,689 psi | 76% | 2963 fps | 98.9% |
| Hodgdon H4831 SC | <<locked>> | 80% | 47,848 psi | 75% | 2946 fps | 98.8% |
| Hodgdon Retumbo | <<locked>> | 80% | 39,044 psi | 61% | 2897 fps | 99.2% |
| Hodgdon TrailBoss | <<locked>> | 80% | 28,471 psi | 45% | 1798 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 80% | 49,255 psi | 77% | 2946 fps | 99.1% |
| IMR 7828 SSC | <<locked>> | 80% | 45,063 psi | 71% | 2949 fps | 98.8% |
| IMR 8133 Enduron | <<locked>> | 84% | 33,895 psi | 53% | 2703 fps | 95.6% |
| Lovex S071 | <<locked>> | 80% | 40,451 psi | 63% | 2753 fps | 99.9% |
| Norma 217 | <<locked>> | 80% | 29,776 psi | 47% | 2602 fps | 96.1% |
| Norma MRP | <<locked>> | 80% | 50,314 psi | 79% | 3048 fps | 100% |
| Ramshot Grand | <<locked>> | 80% | 45,672 psi | 72% | 2969 fps | 99.1% |
| Ramshot Magnum | <<locked>> | 80% | 41,089 psi | 64% | 2835 fps | 99.4% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 29,269 psi | 46% | 1841 fps | 100% |
| ReloadSwiss RS 76 | <<locked>> | 80% | 38,580 psi | 60% | 2871 fps | 99.7% |
| ReloadSwiss RS 80 | <<locked>> | 82% | 38,290 psi | 60% | 2825 fps | 95.9% |
| Rottweil R 904 | <<locked>> | 80% | 51,547 psi | 81% | 2992 fps | 99.6% |
| Rottweil R 905 | <<locked>> | 80% | 50,502 psi | 79% | 3002 fps | 99.9% |
| SNPE Vectan SP 13 | <<locked>> | 98% | 47,355 psi | 74% | 2959 fps | 95.7% |
| SNPE Vectan Tubal 8000 | <<locked>> | 80% | 50,154 psi | 79% | 2999 fps | 99.9% |
| Somchem S361 | <<locked>> | 80% | 52,620 psi | 82% | 2982 fps | 99.4% |
| Somchem S385 | <<locked>> | 80% | 50,865 psi | 80% | 2972 fps | 100% |
| Vihtavuori N165 | <<locked>> | 80% | 44,585 psi | 70% | 2848 fps | 99.6% |
| Vihtavuori N170 | <<locked>> | 86% | 46,905 psi | 74% | 2913 fps | 95% |
| Vihtavuori N555 | <<locked>> | 80% | 50,633 psi | 79% | 2979 fps | 100% |
| Vihtavuori N560 | <<locked>> | 80% | 49,792 psi | 78% | 3048 fps | 99.2% |
| Vihtavuori N565 | <<locked>> | 80% | 41,597 psi | 65% | 2854 fps | 97.7% |
| Vihtavuori N568 | <<locked>> | 82% | 39,392 psi | 62% | 2841 fps | 95.7% |
| Vihtavuori N570 | 101.2 gr | 86% | 43,352 psi | 68% | 2969 fps | 95% |
| Winchester StaBALL HD | <<locked>> | 80% | 45,223 psi | 71% | 2969 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 80% | 47,123 psi | 74% | 2907 fps | 99.7% |
Recommended = one of the top powders for this cartridge and bullet combination.
ᴾ possible press load - work up slowly to this load while watching for signs of excessive pressure.
This overview compares 51 powders for .30-378 Weath. Mag. loaded with the .311 | 180gr | Sellier & Bellot FMJ. ADI AR 2218 delivers the highest muzzle velocity at 3,274 fps; across all powders the maximum-charge window runs from 2,008 fps to 3,274 fps. Accurate 8700 gives the best case fill at 100 %, and 51 of the 51 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 180.0 gr projectile in 0.311" calls for a 1:13.0 twist; slower twists will usually not stabilise this weight. Accurate 8700, Hodgdon TrailBoss, ReloadSwiss RS 14 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. ADI AR 2218, Vihtavuori N570, Alliant Reloder-33 rank at the top here: for .30-378 Weath. Mag. with the .311 | 180gr | Sellier & Bellot FMJ they combine a high case fill with complete burn and sit in the upper velocity band. Always begin at the start load and work up in small increments while checking case and primer for pressure signs.