Load Specifications
Load data in caliber .30-378 Weath. Mag. with .308 | 210gr | CutEdge DGSC bullet and 44 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: 26"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 3100 | <<locked>> | 84% | 57,653 psi | 90% | 2858 fps | 100% |
| Accurate 8700ᴾ | <<locked>> | 100% | 54,027 psi | 85% | 2927 fps | 99% |
| Accurate MAGPRO | <<locked>> | 82% | 57,116 psi | 90% | 2982 fps | 100% |
| ADI AR 2213 | <<locked>> | 82% | 53,838 psi | 84% | 2913 fps | 100% |
| ADI AR 2217 | <<locked>> | 92% | 57,667 psi | 90% | 2966 fps | 100% |
| ADI AR 2218 | <<locked>> | 94% | 54,041 psi | 85% | 3038 fps | 99.6% |
| ADI AR 2225 | <<locked>> | 94% | 57,508 psi | 90% | 2986 fps | 100% |
| Alliant Reloder-22 | <<locked>> | 82% | 54,360 psi | 85% | 2904 fps | 100% |
| Alliant Reloder-23 | <<locked>> | 84% | 56,463 psi | 88% | 2858 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 88% | 57,653 psi | 90% | 2946 fps | 100% |
| Alliant Reloder-33 | <<locked>> | 92% | 56,173 psi | 88% | 3012 fps | 99.5% |
| Alliant Reloder-50 | <<locked>> | 96% | 56,086 psi | 88% | 3005 fps | 99.3% |
| Baschieri & Pellagri 109 | <<locked>> | 86% | 57,711 psi | 90% | 2940 fps | 99.7% |
| Bofors RP15 | <<locked>> | 84% | 54,114 psi | 85% | 2904 fps | 100% |
| Bofors RP30 | <<locked>> | 90% | 57,290 psi | 90% | 2972 fps | 100% |
| Bofors RP5 | <<locked>> | 82% | 54,360 psi | 85% | 2904 fps | 100% |
| Hodgdon H1000 | <<locked>> | 88% | 54,926 psi | 86% | 2923 fps | 100% |
| Hodgdon H4831 | <<locked>> | 82% | 56,057 psi | 88% | 2900 fps | 100% |
| Hodgdon H4831 SC | <<locked>> | 82% | 55,056 psi | 86% | 2887 fps | 100% |
| Hodgdon Retumbo | <<locked>> | 86% | 53,693 psi | 84% | 2986 fps | 100% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 38,101 psi | 60% | 1870 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 82% | 56,188 psi | 88% | 2877 fps | 100% |
| IMR 7828 SSC | <<locked>> | 84% | 56,507 psi | 89% | 2959 fps | 100% |
| IMR 7977 Enduron | <<locked>> | 88% | 54,911 psi | 86% | 2841 fps | 97.1% |
| IMR 8133 Enduron | <<locked>> | 96% | 56,159 psi | 88% | 2972 fps | 100% |
| Lovex D100 | <<locked>> | 92% | 56,028 psi | 88% | 2897 fps | 96.4% |
| Lovex S071 | <<locked>> | 88% | 56,086 psi | 88% | 2835 fps | 100% |
| Norma 217 | <<locked>> | 94% | 53,940 psi | 85% | 2936 fps | 100% |
| Ramshot Grand | <<locked>> | 82% | 53,911 psi | 84% | 2920 fps | 100% |
| Ramshot Magnum | <<locked>> | 86% | 56,304 psi | 88% | 2907 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 39,117 psi | 61% | 1913 fps | 100% |
| ReloadSwiss RS 76 | <<locked>> | 86% | 54,172 psi | 85% | 2966 fps | 100% |
| ReloadSwiss RS 80 | <<locked>> | 90% | 57,130 psi | 90% | 3005 fps | 100% |
| Shooters World 50 BMG | <<locked>> | 92% | 56,028 psi | 88% | 2897 fps | 96.4% |
| SNPE Vectan SP 13ᴾ | <<locked>> | 100% | 55,622 psi | 87% | 2933 fps | 98.9% |
| Vihtavuori 20N29ᴾ | <<locked>> | 100% | 48,834 psi | 77% | 2835 fps | 96.2% |
| Vihtavuori N165 | <<locked>> | 84% | 54,839 psi | 86% | 2835 fps | 100% |
| Vihtavuori N170 | <<locked>> | 88% | 54,128 psi | 85% | 2874 fps | 98.2% |
| Vihtavuori N560 | <<locked>> | 82% | 57,711 psi | 90% | 2986 fps | 100% |
| Vihtavuori N565 | <<locked>> | 86% | 55,303 psi | 87% | 2930 fps | 100% |
| Vihtavuori N568 | <<locked>> | 90% | 57,493 psi | 90% | 3009 fps | 100% |
| Vihtavuori N570 | <<locked>> | 90% | 55,216 psi | 87% | 3018 fps | 99.2% |
| Winchester StaBALL HD | <<locked>> | 82% | 53,969 psi | 85% | 2900 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 82% | 54,244 psi | 85% | 2841 fps | 100% |
Start Load - Barrel Length: 26"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 3100 | <<locked>> | 80% | 50,285 psi | 79% | 2749 fps | 100% |
| Accurate 8700 | <<locked>> | 92% | 40,016 psi | 63% | 2664 fps | 95.6% |
| Accurate MAGPRO | <<locked>> | 80% | 53,156 psi | 83% | 2917 fps | 99.9% |
| ADI AR 2213 | <<locked>> | 80% | 50,256 psi | 79% | 2851 fps | 100% |
| ADI AR 2217 | <<locked>> | 80% | 37,579 psi | 59% | 2605 fps | 98.7% |
| ADI AR 2218 | <<locked>> | 86% | 39,929 psi | 63% | 2746 fps | 96.2% |
| ADI AR 2225 | <<locked>> | 80% | 34,766 psi | 54% | 2579 fps | 99.8% |
| Alliant Reloder-22 | <<locked>> | 80% | 50,879 psi | 80% | 2848 fps | 100% |
| Alliant Reloder-23 | <<locked>> | 80% | 49,588 psi | 78% | 2759 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 80% | 43,685 psi | 68% | 2723 fps | 100% |
| Alliant Reloder-33 | <<locked>> | 82% | 38,421 psi | 60% | 2667 fps | 95.5% |
| Alliant Reloder-50 | <<locked>> | 88% | 41,539 psi | 65% | 2730 fps | 96% |
| Baschieri & Pellagri 109 | <<locked>> | 80% | 47,442 psi | 74% | 2762 fps | 98.4% |
| Bofors RP15 | <<locked>> | 80% | 47,384 psi | 74% | 2785 fps | 100% |
| Bofors RP30 | <<locked>> | 80% | 40,654 psi | 64% | 2677 fps | 99.2% |
| Bofors RP5 | <<locked>> | 80% | 50,879 psi | 80% | 2848 fps | 100% |
| Hodgdon H1000 | <<locked>> | 80% | 41,017 psi | 64% | 2677 fps | 99.6% |
| Hodgdon H4831 | <<locked>> | 80% | 52,460 psi | 82% | 2844 fps | 99.9% |
| Hodgdon H4831 SC | <<locked>> | 80% | 51,517 psi | 81% | 2828 fps | 99.9% |
| Hodgdon Retumbo | <<locked>> | 80% | 43,076 psi | 68% | 2802 fps | 100% |
| Hodgdon TrailBoss | <<locked>> | 80% | 28,631 psi | 45% | 1673 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 80% | 52,576 psi | 82% | 2822 fps | 99.9% |
| IMR 7828 SSC | <<locked>> | 80% | 49,081 psi | 77% | 2838 fps | 99.9% |
| IMR 7977 Enduron | <<locked>> | 84% | 48,211 psi | 76% | 2726 fps | 95.5% |
| IMR 8133 Enduron | <<locked>> | 80% | 32,242 psi | 51% | 2493 fps | 96.7% |
| Lovex D100 | <<locked>> | 90% | 52,112 psi | 82% | 2828 fps | 95.4% |
| Lovex S071 | <<locked>> | 80% | 43,352 psi | 68% | 2631 fps | 100% |
| Norma 217 | <<locked>> | 80% | 32,851 psi | 51% | 2520 fps | 98.8% |
| Ramshot Grand | <<locked>> | 80% | 50,038 psi | 78% | 2858 fps | 100% |
| Ramshot Magnum | <<locked>> | 80% | 45,020 psi | 71% | 2726 fps | 100% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 29,457 psi | 46% | 1713 fps | 100% |
| ReloadSwiss RS 76 | <<locked>> | 80% | 42,772 psi | 67% | 2776 fps | 100% |
| ReloadSwiss RS 80 | <<locked>> | 80% | 39,117 psi | 61% | 2674 fps | 97.8% |
| Shooters World 50 BMG | <<locked>> | 90% | 52,112 psi | 82% | 2828 fps | 95.4% |
| SNPE Vectan SP 13 | <<locked>> | 92% | 42,090 psi | 66% | 2684 fps | 95.9% |
| Vihtavuori 20N29 | <<locked>> | 98% | 45,455 psi | 71% | 2772 fps | 95.2% |
| Vihtavuori N165 | <<locked>> | 80% | 47,950 psi | 75% | 2726 fps | 100% |
| Vihtavuori N170 | <<locked>> | 82% | 44,034 psi | 69% | 2687 fps | 95.9% |
| Vihtavuori N560 | <<locked>> | 80% | 53,867 psi | 84% | 2927 fps | 100% |
| Vihtavuori N565 | <<locked>> | 80% | 44,947 psi | 70% | 2746 fps | 99.5% |
| Vihtavuori N568 | <<locked>> | 80% | 40,147 psi | 63% | 2687 fps | 97.6% |
| Vihtavuori N570 | <<locked>> | 82% | 41,205 psi | 65% | 2743 fps | 96.1% |
| Winchester StaBALL HD | <<locked>> | 80% | 50,024 psi | 78% | 2841 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 80% | 50,720 psi | 79% | 2785 fps | 100% |
ᴾ possible press load - work up slowly to this load while watching for signs of excessive pressure.
This overview compares 48 powders for .30-378 Weath. Mag. loaded with the .308 | 210gr | CutEdge DGSC. ADI AR 2218 delivers the highest muzzle velocity at 3,038 fps; across all powders the maximum-charge window runs from 1,870 fps to 3,038 fps. Accurate 8700 gives the best case fill at 100 %, and 48 of the 48 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (440 MPa), the top charges use 60–90 %, leaving at least 10 % headroom. The 210.0 gr projectile in 0.308" 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. As outliers, Hodgdon 50BMG burn incompletely and react more sensitively to barrel length and temperature. Always begin at the start load and work up in small increments while checking case and primer for pressure signs.