Load Specifications
Load data in caliber .30-378 Weath. Mag. with .308 | 220gr | Nosler Ballistic Tip Hunting bullet and 42 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-50.
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>> | 82% | 56,362 psi | 88% | 2776 fps | 100% |
| Accurate 8700ᴾ | <<locked>> | 100% | 56,840 psi | 89% | 2913 fps | 99.5% |
| ADI AR 2213 | <<locked>> | 82% | 56,144 psi | 88% | 2884 fps | 100% |
| ADI AR 2217 | <<locked>> | 90% | 56,086 psi | 88% | 2881 fps | 100% |
| ADI AR 2218 | <<locked>> | 94% | 56,782 psi | 89% | 3025 fps | 99.9% |
| ADI AR 2225 | <<locked>> | 92% | 56,217 psi | 88% | 2904 fps | 100% |
| Alliant Reloder-22 | <<locked>> | 82% | 56,782 psi | 89% | 2877 fps | 100% |
| Alliant Reloder-23 | <<locked>> | 82% | 55,187 psi | 86% | 2776 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 86% | 56,391 psi | 88% | 2861 fps | 100% |
| Alliant Reloder-33 | <<locked>> | 90% | 54,752 psi | 86% | 2930 fps | 99.6% |
| Alliant Reloder-50 | <<locked>> | 94% | 55,332 psi | 87% | 2933 fps | 99.4% |
| Baschieri & Pellagri 109 | <<locked>> | 84% | 55,898 psi | 88% | 2851 fps | 99.7% |
| Bofors RP15 | <<locked>> | 84% | 56,347 psi | 88% | 2871 fps | 100% |
| Bofors RP30 | <<locked>> | 88% | 56,246 psi | 88% | 2894 fps | 100% |
| Bofors RP5 | <<locked>> | 82% | 56,782 psi | 89% | 2877 fps | 100% |
| Hodgdon H1000 | <<locked>> | 88% | 57,319 psi | 90% | 2890 fps | 100% |
| Hodgdon H4831 SC | <<locked>> | 82% | 57,232 psi | 90% | 2858 fps | 100% |
| Hodgdon Retumbo | <<locked>> | 86% | 56,449 psi | 88% | 2959 fps | 100% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 38,203 psi | 60% | 1824 fps | 100% |
| Hodgdon US 869 | <<locked>> | 98% | 57,450 psi | 90% | 2913 fps | 96.7% |
| IMR 7828 SSC | <<locked>> | 82% | 54,969 psi | 86% | 2871 fps | 100% |
| IMR 7977 Enduron | <<locked>> | 88% | 56,681 psi | 89% | 2812 fps | 97.8% |
| IMR 8133 Enduron | <<locked>> | 94% | 55,172 psi | 86% | 2894 fps | 100% |
| Lovex D100 | <<locked>> | 90% | 54,389 psi | 85% | 2812 fps | 96.5% |
| Lovex S071 | <<locked>> | 86% | 55,201 psi | 87% | 2759 fps | 100% |
| Norma 217 | <<locked>> | 94% | 56,898 psi | 89% | 2913 fps | 100% |
| Ramshot Grand | <<locked>> | 82% | 56,449 psi | 88% | 2897 fps | 100% |
| Ramshot LRT | <<locked>> | 94% | 56,289 psi | 88% | 2953 fps | 96.7% |
| Ramshot Magnum | <<locked>> | 84% | 54,824 psi | 86% | 2822 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 39,421 psi | 62% | 1870 fps | 100% |
| ReloadSwiss RS 76 | <<locked>> | 86% | 57,058 psi | 89% | 2943 fps | 100% |
| ReloadSwiss RS 80 | <<locked>> | 88% | 55,970 psi | 88% | 2927 fps | 100% |
| Shooters World 50 BMG | <<locked>> | 90% | 54,389 psi | 85% | 2812 fps | 96.5% |
| SNPE Vectan SP 13 | <<locked>> | 98% | 54,563 psi | 86% | 2858 fps | 99.1% |
| Vihtavuori 20N29ᴾ | <<locked>> | 100% | 51,663 psi | 81% | 2831 fps | 97.4% |
| Vihtavuori N165 | <<locked>> | 84% | 57,000 psi | 89% | 2802 fps | 100% |
| Vihtavuori N170 | <<locked>> | 88% | 56,492 psi | 89% | 2854 fps | 98.9% |
| Vihtavuori N565 | <<locked>> | 84% | 54,201 psi | 85% | 2848 fps | 100% |
| Vihtavuori N568 | <<locked>> | 88% | 56,246 psi | 88% | 2927 fps | 100% |
| Vihtavuori N570 | <<locked>> | 88% | 54,099 psi | 85% | 2936 fps | 99.3% |
| Winchester StaBALL HD | <<locked>> | 82% | 56,855 psi | 89% | 2871 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 82% | 56,536 psi | 89% | 2808 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% | 52,779 psi | 83% | 2723 fps | 100% |
| Accurate 8700 | <<locked>> | 90% | 39,552 psi | 62% | 2602 fps | 96% |
| ADI AR 2213 | <<locked>> | 80% | 52,446 psi | 82% | 2828 fps | 100% |
| ADI AR 2217 | <<locked>> | 80% | 39,624 psi | 62% | 2595 fps | 99.4% |
| ADI AR 2218 | 95.8 gr | 82% | 36,506 psi | 57% | 2608 fps | 95.3% |
| ADI AR 2225 | <<locked>> | 80% | 36,941 psi | 58% | 2572 fps | 100% |
| Alliant Reloder-22 | <<locked>> | 80% | 53,156 psi | 83% | 2822 fps | 100% |
| Alliant Reloder-23 | <<locked>> | 80% | 51,808 psi | 81% | 2726 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 80% | 45,977 psi | 72% | 2703 fps | 100% |
| Alliant Reloder-33 | <<locked>> | 80% | 37,855 psi | 59% | 2598 fps | 95.9% |
| Alliant Reloder-50 | 99.6 gr | 84% | 38,377 psi | 60% | 2605 fps | 95.5% |
| Baschieri & Pellagri 109 | <<locked>> | 80% | 49,153 psi | 77% | 2736 fps | 99% |
| Bofors RP15 | <<locked>> | 80% | 49,574 psi | 78% | 2762 fps | 100% |
| Bofors RP30 | <<locked>> | 80% | 43,004 psi | 67% | 2667 fps | 99.8% |
| Bofors RP5 | <<locked>> | 80% | 53,156 psi | 83% | 2822 fps | 100% |
| Hodgdon H1000 | <<locked>> | 80% | 43,192 psi | 68% | 2664 fps | 100% |
| Hodgdon H4831 SC | <<locked>> | 80% | 53,592 psi | 84% | 2802 fps | 100% |
| Hodgdon Retumbo | <<locked>> | 80% | 45,571 psi | 71% | 2785 fps | 100% |
| Hodgdon TrailBoss | <<locked>> | 80% | 28,848 psi | 45% | 1634 fps | 100% |
| Hodgdon US 869 | <<locked>> | 96% | 53,461 psi | 84% | 2848 fps | 95.8% |
| IMR 7828 SSC | <<locked>> | 80% | 51,300 psi | 80% | 2815 fps | 100% |
| IMR 7977 Enduron | <<locked>> | 82% | 46,789 psi | 73% | 2641 fps | 95.6% |
| IMR 8133 Enduron | <<locked>> | 80% | 34,461 psi | 54% | 2497 fps | 98.1% |
| Lovex D100 | <<locked>> | 88% | 50,676 psi | 79% | 2749 fps | 95.6% |
| Lovex S071 | <<locked>> | 80% | 45,643 psi | 72% | 2612 fps | 100% |
| Norma 217 | <<locked>> | 80% | 35,244 psi | 55% | 2526 fps | 99.6% |
| Ramshot Grand | <<locked>> | 80% | 52,605 psi | 82% | 2838 fps | 100% |
| Ramshot LRT | <<locked>> | 92% | 52,315 psi | 82% | 2884 fps | 95.7% |
| Ramshot Magnum | <<locked>> | 80% | 47,398 psi | 74% | 2710 fps | 100% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 29,631 psi | 46% | 1670 fps | 100% |
| ReloadSwiss RS 76 | <<locked>> | 80% | 45,397 psi | 71% | 2762 fps | 100% |
| ReloadSwiss RS 80 | <<locked>> | 80% | 41,510 psi | 65% | 2667 fps | 98.8% |
| Shooters World 50 BMG | <<locked>> | 88% | 50,676 psi | 79% | 2749 fps | 95.6% |
| SNPE Vectan SP 13 | <<locked>> | 88% | 38,885 psi | 61% | 2562 fps | 95.3% |
| Vihtavuori 20N29 | <<locked>> | 96% | 44,817 psi | 70% | 2707 fps | 95.6% |
| Vihtavuori N165 | <<locked>> | 80% | 50,038 psi | 78% | 2697 fps | 100% |
| Vihtavuori N170 | <<locked>> | 80% | 43,192 psi | 68% | 2615 fps | 96.2% |
| Vihtavuori N565 | <<locked>> | 80% | 47,398 psi | 74% | 2733 fps | 99.9% |
| Vihtavuori N568 | <<locked>> | 80% | 42,467 psi | 67% | 2680 fps | 98.6% |
| Vihtavuori N570 | 91.5 gr | 80% | 40,596 psi | 64% | 2674 fps | 96.4% |
| Winchester StaBALL HD | <<locked>> | 80% | 52,997 psi | 83% | 2818 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 80% | 52,750 psi | 83% | 2756 fps | 100% |
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 44 powders for .30-378 Weath. Mag. loaded with the .308 | 220gr | Nosler Ballistic Tip Hunting. ADI AR 2218 delivers the highest muzzle velocity at 3,025 fps; across all powders the maximum-charge window runs from 1,824 fps to 3,025 fps. Accurate 8700 gives the best case fill at 100 %, and 44 of the 44 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 220.0 gr projectile in 0.308" calls for a 1:11.5 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-50 rank at the top here: for .30-378 Weath. Mag. with the .308 | 220gr | Nosler Ballistic Tip Hunting they combine a high case fill with complete burn and sit in the upper velocity band. 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.