Load Specifications
Load data in caliber 7.82 Warbird with .308 | 185gr | Lapua Mega bullet and 60 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Hodgdon Retumbo, ReloadSwiss RS 76 and Vihtavuori N570.
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>> | 88% | 58,392 psi | 88% | 2995 fps | 100% |
| Accurate MAGPRO | <<locked>> | 86% | 57,435 psi | 86% | 3110 fps | 99.6% |
| ADI AR 2209 | <<locked>> | 86% | 59,524 psi | 89% | 3087 fps | 100% |
| ADI AR 2213 | <<locked>> | 88% | 58,131 psi | 87% | 3104 fps | 100% |
| ADI AR 2217 | <<locked>> | 96% | 56,898 psi | 85% | 3081 fps | 100% |
| ADI AR 2218ᴾ | <<locked>> | 100% | 57,508 psi | 86% | 3205 fps | 99% |
| ADI AR 2225ᴾ | <<locked>> | 100% | 60,002 psi | 90% | 3159 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 82% | 59,640 psi | 89% | 3064 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 86% | 59,030 psi | 88% | 3077 fps | 100% |
| Alliant Reloder-22 | <<locked>> | 88% | 58,552 psi | 88% | 3100 fps | 100% |
| Alliant Reloder-23 | <<locked>> | 90% | 60,350 psi | 90% | 3048 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 92% | 57,072 psi | 86% | 3074 fps | 100% |
| Alliant Reloder-26 | <<locked>> | 84% | 57,435 psi | 86% | 3091 fps | 100% |
| Alliant Reloder-33 | <<locked>> | 98% | 59,553 psi | 89% | 3186 fps | 99% |
| Alliant Reloder-50ᴾ | <<locked>> | 100% | 54,926 psi | 82% | 3104 fps | 97.9% |
| Baschieri & Pellagri 109 | <<locked>> | 90% | 58,320 psi | 87% | 3061 fps | 98.9% |
| Bofors RP15 | <<locked>> | 90% | 57,725 psi | 87% | 3084 fps | 100% |
| Bofors RP30 | <<locked>> | 94% | 56,855 psi | 85% | 3094 fps | 100% |
| Bofors RP5 | <<locked>> | 88% | 58,552 psi | 88% | 3100 fps | 100% |
| Hodgdon H1000 | <<locked>> | 94% | 58,595 psi | 88% | 3104 fps | 100% |
| Hodgdon H4831 | <<locked>> | 86% | 56,884 psi | 85% | 3035 fps | 99.7% |
| Hodgdon H4831 SC | <<locked>> | 88% | 59,857 psi | 90% | 3077 fps | 99.9% |
| Hodgdon Hybrid 100V | <<locked>> | 84% | 59,727 psi | 90% | 2982 fps | 100% |
| Hodgdon Retumbo | <<locked>> | 94% | 60,336 psi | 90% | 3228 fps | 100% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 37,739 psi | 57% | 1942 fps | 100% |
| IMR 4350 | <<locked>> | 82% | 57,783 psi | 87% | 2999 fps | 100% |
| IMR 4831 | <<locked>> | 82% | 58,668 psi | 88% | 2999 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 86% | 57,276 psi | 86% | 3012 fps | 99.8% |
| IMR 7828 SSC | <<locked>> | 88% | 56,507 psi | 85% | 3087 fps | 99.9% |
| IMR 7977 Enduron | <<locked>> | 94% | 59,495 psi | 89% | 3012 fps | 96.1% |
| IMR 8133 Enduronᴾ | <<locked>> | 100% | 54,853 psi | 82% | 3081 fps | 99.9% |
| Lovex S070 | <<locked>> | 82% | 60,002 psi | 90% | 3025 fps | 100% |
| Lovex S071 | <<locked>> | 94% | 60,075 psi | 90% | 3018 fps | 100% |
| Norma 204 | <<locked>> | 82% | 59,321 psi | 89% | 3064 fps | 100% |
| Norma 217ᴾ | <<locked>> | 100% | 56,144 psi | 84% | 3104 fps | 100% |
| Norma MRP | <<locked>> | 86% | 58,740 psi | 88% | 3114 fps | 100% |
| Norma URP | <<locked>> | 82% | 60,205 psi | 90% | 3041 fps | 100% |
| Ramshot Grand | <<locked>> | 88% | 57,870 psi | 87% | 3110 fps | 100% |
| Ramshot Hunter | <<locked>> | 82% | 59,364 psi | 89% | 3054 fps | 100% |
| Ramshot Magnum | <<locked>> | 90% | 56,246 psi | 84% | 3035 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 38,754 psi | 58% | 1988 fps | 100% |
| ReloadSwiss RS 76 | <<locked>> | 92% | 57,290 psi | 86% | 3153 fps | 100% |
| ReloadSwiss RS 80 | <<locked>> | 94% | 56,492 psi | 85% | 3120 fps | 99.7% |
| Rottweil R 904 | <<locked>> | 86% | 59,886 psi | 90% | 3051 fps | 100% |
| Rottweil R 905 | <<locked>> | 86% | 58,885 psi | 88% | 3068 fps | 100% |
| Shooters World SW4350 | <<locked>> | 82% | 60,002 psi | 90% | 3025 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 82% | 60,336 psi | 90% | 2976 fps | 100% |
| SNPE Vectan Tubal 8000 | <<locked>> | 86% | 58,479 psi | 88% | 3064 fps | 100% |
| Somchem S361 | <<locked>> | 84% | 57,522 psi | 86% | 2986 fps | 99.7% |
| Somchem S365 | <<locked>> | 82% | 58,204 psi | 87% | 2992 fps | 100% |
| Somchem S385 | <<locked>> | 86% | 59,045 psi | 89% | 3031 fps | 100% |
| Vihtavuori N165 | <<locked>> | 90% | 59,176 psi | 89% | 3018 fps | 100% |
| Vihtavuori N170 | <<locked>> | 94% | 58,392 psi | 88% | 3048 fps | 97.5% |
| Vihtavuori N555 | <<locked>> | 86% | 58,450 psi | 88% | 3028 fps | 100% |
| Vihtavuori N560 | <<locked>> | 86% | 58,059 psi | 87% | 3120 fps | 99.9% |
| Vihtavuori N565 | <<locked>> | 92% | 59,088 psi | 89% | 3110 fps | 99.9% |
| Vihtavuori N568 | <<locked>> | 94% | 56,855 psi | 85% | 3123 fps | 99.5% |
| Vihtavuori N570 | <<locked>> | 96% | 58,291 psi | 87% | 3192 fps | 98.5% |
| Winchester StaBALL HD | <<locked>> | 88% | 56,971 psi | 85% | 3091 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 88% | 59,117 psi | 89% | 3031 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% | 44,556 psi | 67% | 2772 fps | 100% |
| Accurate MAGPRO | <<locked>> | 80% | 46,499 psi | 70% | 2913 fps | 98% |
| ADI AR 2209 | <<locked>> | 80% | 48,675 psi | 73% | 2910 fps | 99.7% |
| ADI AR 2213 | <<locked>> | 80% | 43,961 psi | 66% | 2854 fps | 98.4% |
| ADI AR 2217 | <<locked>> | 80% | 32,706 psi | 49% | 2582 fps | 95% |
| ADI AR 2218 | <<locked>> | 94% | 46,108 psi | 69% | 2982 fps | 96.2% |
| ADI AR 2225 | <<locked>> | 80% | 30,081 psi | 45% | 2552 fps | 97.1% |
| Alliant Reloder-16 | <<locked>> | 80% | 55,782 psi | 84% | 3012 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 80% | 48,472 psi | 73% | 2900 fps | 99.7% |
| Alliant Reloder-22 | <<locked>> | 80% | 44,730 psi | 67% | 2861 fps | 99.3% |
| Alliant Reloder-23 | <<locked>> | 80% | 43,424 psi | 65% | 2789 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 80% | 37,666 psi | 56% | 2733 fps | 99.9% |
| Alliant Reloder-26 | <<locked>> | 80% | 49,516 psi | 74% | 2966 fps | 100% |
| Alliant Reloder-33 | <<locked>> | 90% | 43,976 psi | 66% | 2904 fps | 95.6% |
| Alliant Reloder-50 | <<locked>> | 96% | 47,311 psi | 71% | 2963 fps | 96.1% |
| Baschieri & Pellagri 109 | <<locked>> | 80% | 42,235 psi | 63% | 2759 fps | 95.2% |
| Bofors RP15 | <<locked>> | 80% | 41,553 psi | 62% | 2792 fps | 98.7% |
| Bofors RP30 | <<locked>> | 80% | 35,128 psi | 53% | 2664 fps | 96.3% |
| Bofors RP5 | <<locked>> | 80% | 44,730 psi | 67% | 2861 fps | 99.3% |
| Hodgdon H1000 | <<locked>> | 80% | 35,621 psi | 53% | 2664 fps | 97% |
| Hodgdon H4831 | <<locked>> | 80% | 46,412 psi | 70% | 2851 fps | 98.4% |
| Hodgdon H4831 SC | <<locked>> | 80% | 45,687 psi | 68% | 2835 fps | 98.2% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 52,475 psi | 79% | 2881 fps | 100% |
| Hodgdon Retumbo | 84.8 gr | 80% | 36,796 psi | 55% | 2779 fps | 98.5% |
| Hodgdon TrailBoss | <<locked>> | 80% | 28,340 psi | 42% | 1739 fps | 100% |
| IMR 4350 | <<locked>> | 80% | 54,244 psi | 81% | 2946 fps | 100% |
| IMR 4831 | <<locked>> | 80% | 54,998 psi | 82% | 2949 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 80% | 47,311 psi | 71% | 2838 fps | 98.7% |
| IMR 7828 SSC | <<locked>> | 80% | 42,670 psi | 64% | 2835 fps | 98.2% |
| IMR 7977 Enduron | <<locked>> | 92% | 55,767 psi | 84% | 2949 fps | 95.3% |
| IMR 8133 Enduron | <<locked>> | 86% | 33,997 psi | 51% | 2651 fps | 95.6% |
| Lovex S070 | <<locked>> | 80% | 56,347 psi | 84% | 2972 fps | 100% |
| Lovex S071 | <<locked>> | 80% | 38,537 psi | 58% | 2654 fps | 99.6% |
| Norma 204 | <<locked>> | 80% | 55,376 psi | 83% | 3005 fps | 100% |
| Norma 217 | <<locked>> | 82% | 29,776 psi | 45% | 2552 fps | 96.1% |
| Norma MRP | <<locked>> | 80% | 47,543 psi | 71% | 2930 fps | 100% |
| Norma URP | <<locked>> | 80% | 56,405 psi | 85% | 2989 fps | 100% |
| Ramshot Grand | <<locked>> | 80% | 42,946 psi | 64% | 2851 fps | 98.6% |
| Ramshot Hunter | <<locked>> | 80% | 55,506 psi | 83% | 2999 fps | 100% |
| Ramshot Magnum | <<locked>> | 80% | 38,638 psi | 58% | 2720 fps | 98.9% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 29,167 psi | 44% | 1785 fps | 100% |
| ReloadSwiss RS 76 | 90.8 gr | 80% | 36,187 psi | 54% | 2756 fps | 99.2% |
| ReloadSwiss RS 80 | <<locked>> | 84% | 38,653 psi | 58% | 2776 fps | 96% |
| Rottweil R 904 | <<locked>> | 80% | 49,255 psi | 74% | 2881 fps | 99.3% |
| Rottweil R 905 | <<locked>> | 80% | 48,196 psi | 72% | 2894 fps | 99.7% |
| Shooters World SW4350 | <<locked>> | 80% | 56,347 psi | 84% | 2972 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 56,579 psi | 85% | 2923 fps | 100% |
| SNPE Vectan Tubal 8000 | <<locked>> | 80% | 47,848 psi | 72% | 2887 fps | 99.7% |
| Somchem S361 | <<locked>> | 80% | 50,328 psi | 75% | 2867 fps | 99% |
| Somchem S365 | <<locked>> | 80% | 54,462 psi | 82% | 2943 fps | 100% |
| Somchem S385 | <<locked>> | 80% | 48,675 psi | 73% | 2864 fps | 99.9% |
| Vihtavuori N165 | <<locked>> | 80% | 42,467 psi | 64% | 2740 fps | 99.3% |
| Vihtavuori N170 | <<locked>> | 88% | 47,674 psi | 71% | 2861 fps | 95% |
| Vihtavuori N555 | <<locked>> | 80% | 48,109 psi | 72% | 2871 fps | 100% |
| Vihtavuori N560 | <<locked>> | 80% | 47,137 psi | 71% | 2927 fps | 98.6% |
| Vihtavuori N565 | <<locked>> | 80% | 39,247 psi | 59% | 2740 fps | 96.9% |
| Vihtavuori N568 | <<locked>> | 84% | 39,755 psi | 60% | 2792 fps | 95.8% |
| Vihtavuori N570 | 96.8 gr | 88% | 43,613 psi | 65% | 2913 fps | 95% |
| Winchester StaBALL HD | <<locked>> | 80% | 42,076 psi | 63% | 2858 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 80% | 44,889 psi | 67% | 2795 fps | 99.3% |
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 60 powders for 7.82 Warbird loaded with the .308 | 185gr | Lapua Mega. Hodgdon Retumbo delivers the highest muzzle velocity at 3,228 fps; across all powders the maximum-charge window runs from 1,942 fps to 3,228 fps. ADI AR 2218 gives the best case fill at 100 %, and 60 of the 60 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (460 MPa), the top charges use 57–90 %, leaving at least 10 % headroom. The 185.0 gr projectile in 0.308" calls for a 1:15.5 twist; slower twists will usually not stabilise this weight. ADI AR 2218, ADI AR 2225, Alliant Reloder-50 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. Hodgdon Retumbo, ReloadSwiss RS 76, Vihtavuori N570 rank at the top here: for 7.82 Warbird with the .308 | 185gr | Lapua Mega 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.