Load Specifications
Load data in caliber 7.82 Warbird with .308 | 170gr | Swift A-Frame bullet and 66 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Hodgdon Retumbo, Vihtavuori N570 and ReloadSwiss RS 76.
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>> | 90% | 59,741 psi | 90% | 3123 fps | 100% |
| Accurate 4350 | <<locked>> | 82% | 60,118 psi | 90% | 3146 fps | 100% |
| Accurate MAGPRO | <<locked>> | 88% | 58,813 psi | 88% | 3241 fps | 99.4% |
| ADI AR 2209 | <<locked>> | 86% | 57,000 psi | 85% | 3159 fps | 100% |
| ADI AR 2213 | <<locked>> | 90% | 59,582 psi | 89% | 3238 fps | 99.9% |
| ADI AR 2217 | <<locked>> | 98% | 58,218 psi | 87% | 3205 fps | 99.9% |
| ADI AR 2218ᴾ | <<locked>> | 100% | 54,781 psi | 82% | 3255 fps | 97.8% |
| ADI AR 2225ᴾ | <<locked>> | 100% | 56,811 psi | 85% | 3225 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 82% | 57,276 psi | 86% | 3150 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 86% | 56,623 psi | 85% | 3146 fps | 100% |
| Alliant Reloder-22 | <<locked>> | 90% | 59,901 psi | 90% | 3228 fps | 100% |
| Alliant Reloder-23 | <<locked>> | 90% | 57,696 psi | 86% | 3127 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 94% | 58,160 psi | 87% | 3205 fps | 100% |
| Alliant Reloder-26 | <<locked>> | 86% | 58,856 psi | 88% | 3225 fps | 100% |
| Alliant Reloder-33 | <<locked>> | 98% | 56,304 psi | 84% | 3238 fps | 97.9% |
| Alliant Reloder-50ᴾ | <<locked>> | 100% | 51,837 psi | 78% | 3146 fps | 96.4% |
| Baschieri & Pellagri 109 | <<locked>> | 92% | 59,930 psi | 90% | 3189 fps | 98.6% |
| Bofors RP15 | <<locked>> | 92% | 59,059 psi | 89% | 3215 fps | 100% |
| Bofors RP30 | <<locked>> | 96% | 57,986 psi | 87% | 3219 fps | 99.9% |
| Bofors RP5 | <<locked>> | 90% | 59,901 psi | 90% | 3228 fps | 100% |
| Hodgdon H1000 | <<locked>> | 96% | 59,915 psi | 90% | 3232 fps | 100% |
| Hodgdon H4831 | <<locked>> | 88% | 58,494 psi | 88% | 3163 fps | 99.5% |
| Hodgdon H4831 SC | <<locked>> | 88% | 57,406 psi | 86% | 3146 fps | 99.4% |
| Hodgdon Hybrid 100V | <<locked>> | 84% | 57,421 psi | 86% | 3064 fps | 100% |
| Hodgdon Retumbo | <<locked>> | 94% | 57,203 psi | 86% | 3297 fps | 100% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 37,565 psi | 56% | 2024 fps | 100% |
| IMR 4350 | <<locked>> | 84% | 59,335 psi | 89% | 3130 fps | 100% |
| IMR 4831 | <<locked>> | 84% | 60,147 psi | 90% | 3133 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 88% | 58,842 psi | 88% | 3143 fps | 99.6% |
| IMR 7828 SSC | <<locked>> | 90% | 57,885 psi | 87% | 3219 fps | 99.8% |
| IMR 8133 Enduronᴾ | <<locked>> | 100% | 52,040 psi | 78% | 3136 fps | 99.5% |
| Lovex S065 | <<locked>> | 82% | 59,335 psi | 89% | 3104 fps | 100% |
| Lovex S070 | <<locked>> | 82% | 57,914 psi | 87% | 3110 fps | 100% |
| Lovex S071 | <<locked>> | 94% | 57,537 psi | 86% | 3091 fps | 100% |
| Norma 204 | <<locked>> | 82% | 56,971 psi | 85% | 3136 fps | 99.9% |
| Norma 217ᴾ | <<locked>> | 100% | 53,084 psi | 80% | 3163 fps | 100% |
| Norma MRP | <<locked>> | 88% | 60,205 psi | 90% | 3248 fps | 100% |
| Norma URP | <<locked>> | 82% | 57,928 psi | 87% | 3123 fps | 100% |
| Ramshot Grand | <<locked>> | 90% | 59,277 psi | 89% | 3241 fps | 100% |
| Ramshot Hunter | <<locked>> | 82% | 56,956 psi | 85% | 3133 fps | 100% |
| Ramshot Magnum | <<locked>> | 92% | 57,638 psi | 86% | 3159 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 38,522 psi | 58% | 2070 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 82% | 59,059 psi | 89% | 3199 fps | 100% |
| ReloadSwiss RS 76 | <<locked>> | 94% | 58,421 psi | 88% | 3284 fps | 100% |
| ReloadSwiss RS 80 | <<locked>> | 96% | 57,740 psi | 87% | 3245 fps | 99.5% |
| Rottweil R 904 | <<locked>> | 86% | 57,580 psi | 86% | 3127 fps | 99.7% |
| Rottweil R 905 | <<locked>> | 88% | 60,336 psi | 90% | 3199 fps | 100% |
| Shooters World Long Rifle | <<locked>> | 82% | 59,335 psi | 89% | 3104 fps | 100% |
| Shooters World SW4350 | <<locked>> | 82% | 57,914 psi | 87% | 3110 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 82% | 58,334 psi | 87% | 3058 fps | 100% |
| SNPE Vectan Tubal 8000 | <<locked>> | 88% | 59,930 psi | 90% | 3196 fps | 100% |
| Somchem S361 | <<locked>> | 86% | 59,364 psi | 89% | 3117 fps | 99.6% |
| Somchem S365 | <<locked>> | 84% | 59,567 psi | 89% | 3127 fps | 100% |
| Somchem S385 | <<locked>> | 86% | 56,739 psi | 85% | 3104 fps | 100% |
| Vihtavuori N160 | <<locked>> | 82% | 59,553 psi | 89% | 3114 fps | 100% |
| Vihtavuori N165 | <<locked>> | 90% | 56,724 psi | 85% | 3091 fps | 100% |
| Vihtavuori N170 | <<locked>> | 96% | 59,872 psi | 90% | 3169 fps | 97% |
| Vihtavuori N550 | <<locked>> | 82% | 58,813 psi | 88% | 3120 fps | 100% |
| Vihtavuori N555 | <<locked>> | 88% | 59,611 psi | 89% | 3159 fps | 100% |
| Vihtavuori N560 | <<locked>> | 88% | 59,524 psi | 89% | 3251 fps | 99.7% |
| Vihtavuori N565 | <<locked>> | 92% | 56,579 psi | 85% | 3176 fps | 99.6% |
| Vihtavuori N568 | <<locked>> | 96% | 58,117 psi | 87% | 3245 fps | 99.2% |
| Vihtavuori N570 | <<locked>> | 98% | 59,466 psi | 89% | 3317 fps | 98.1% |
| Winchester 6.5 StaBALL | <<locked>> | 82% | 59,059 psi | 89% | 3054 fps | 100% |
| Winchester StaBALL HD | <<locked>> | 90% | 57,972 psi | 87% | 3225 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 88% | 56,623 psi | 85% | 3104 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% | 42,612 psi | 64% | 2838 fps | 99.8% |
| Accurate 4350 | <<locked>> | 80% | 56,057 psi | 84% | 3091 fps | 100% |
| Accurate MAGPRO | <<locked>> | 80% | 44,208 psi | 66% | 2966 fps | 96.7% |
| ADI AR 2209 | <<locked>> | 80% | 46,572 psi | 70% | 2972 fps | 99.1% |
| ADI AR 2213 | <<locked>> | 80% | 41,843 psi | 63% | 2907 fps | 97.1% |
| ADI AR 2217 | <<locked>> | 84% | 35,781 psi | 54% | 2753 fps | 95.4% |
| ADI AR 2218 | <<locked>> | 96% | 47,166 psi | 71% | 3097 fps | 95.5% |
| ADI AR 2225 | <<locked>> | 80% | 28,660 psi | 43% | 2585 fps | 95% |
| Alliant Reloder-16 | <<locked>> | 80% | 53,621 psi | 80% | 3094 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 80% | 46,528 psi | 70% | 2966 fps | 99.1% |
| Alliant Reloder-22 | <<locked>> | 80% | 42,583 psi | 64% | 2913 fps | 98.4% |
| Alliant Reloder-23 | <<locked>> | 80% | 41,292 psi | 62% | 2854 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 80% | 35,708 psi | 54% | 2782 fps | 99.4% |
| Alliant Reloder-26 | <<locked>> | 80% | 46,833 psi | 70% | 3031 fps | 100% |
| Alliant Reloder-33 | <<locked>> | 94% | 48,428 psi | 73% | 3091 fps | 96% |
| Alliant Reloder-50 | <<locked>> | 98% | 48,095 psi | 72% | 3071 fps | 95.4% |
| Baschieri & Pellagri 109 | <<locked>> | 84% | 46,325 psi | 69% | 2940 fps | 95.6% |
| Bofors RP15 | <<locked>> | 80% | 39,682 psi | 59% | 2848 fps | 97.6% |
| Bofors RP30 | <<locked>> | 82% | 35,810 psi | 54% | 2772 fps | 95.6% |
| Bofors RP5 | <<locked>> | 80% | 42,583 psi | 64% | 2913 fps | 98.4% |
| Hodgdon H1000 | <<locked>> | 80% | 33,866 psi | 51% | 2703 fps | 95.2% |
| Hodgdon H4831 | <<locked>> | 80% | 44,498 psi | 67% | 2910 fps | 97.2% |
| Hodgdon H4831 SC | <<locked>> | 80% | 43,656 psi | 65% | 2894 fps | 97% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 50,343 psi | 75% | 2959 fps | 100% |
| Hodgdon Retumbo | 86.3 gr | 80% | 34,954 psi | 52% | 2822 fps | 97% |
| Hodgdon TrailBoss | <<locked>> | 80% | 28,210 psi | 42% | 1814 fps | 100% |
| IMR 4350 | <<locked>> | 80% | 52,185 psi | 78% | 3018 fps | 100% |
| IMR 4831 | <<locked>> | 80% | 52,750 psi | 79% | 3025 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 80% | 45,484 psi | 68% | 2900 fps | 97.6% |
| IMR 7828 SSC | <<locked>> | 80% | 40,640 psi | 61% | 2887 fps | 96.8% |
| IMR 8133 Enduron | <<locked>> | 90% | 36,811 psi | 55% | 2815 fps | 95.8% |
| Lovex S065 | <<locked>> | 80% | 55,753 psi | 84% | 3051 fps | 100% |
| Lovex S070 | <<locked>> | 80% | 54,418 psi | 82% | 3051 fps | 100% |
| Lovex S071 | <<locked>> | 80% | 36,666 psi | 55% | 2707 fps | 98.9% |
| Norma 204 | <<locked>> | 80% | 53,214 psi | 80% | 3074 fps | 99.7% |
| Norma 217 | <<locked>> | 84% | 30,124 psi | 45% | 2651 fps | 95.2% |
| Norma MRP | <<locked>> | 80% | 45,237 psi | 68% | 2992 fps | 99.7% |
| Norma URP | <<locked>> | 80% | 54,302 psi | 81% | 3071 fps | 100% |
| Ramshot Grand | <<locked>> | 80% | 40,640 psi | 61% | 2900 fps | 97.3% |
| Ramshot Hunter | <<locked>> | 80% | 53,301 psi | 80% | 3074 fps | 100% |
| Ramshot Magnum | <<locked>> | 80% | 36,637 psi | 55% | 2769 fps | 97.7% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 28,993 psi | 43% | 1860 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 54,911 psi | 82% | 3140 fps | 100% |
| ReloadSwiss RS 76 | 92.3 gr | 80% | 34,171 psi | 51% | 2789 fps | 97.9% |
| ReloadSwiss RS 80 | <<locked>> | 86% | 39,378 psi | 59% | 2884 fps | 95.3% |
| Rottweil R 904 | <<locked>> | 80% | 47,471 psi | 71% | 2949 fps | 98.5% |
| Rottweil R 905 | <<locked>> | 80% | 46,209 psi | 69% | 2959 fps | 99.1% |
| Shooters World Long Rifle | <<locked>> | 80% | 55,753 psi | 84% | 3051 fps | 100% |
| Shooters World SW4350 | <<locked>> | 80% | 54,418 psi | 82% | 3051 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 54,708 psi | 82% | 3002 fps | 100% |
| SNPE Vectan Tubal 8000 | <<locked>> | 80% | 45,876 psi | 69% | 2953 fps | 99.1% |
| Somchem S361 | <<locked>> | 80% | 48,486 psi | 73% | 2933 fps | 98.1% |
| Somchem S365 | <<locked>> | 80% | 51,982 psi | 78% | 3018 fps | 100% |
| Somchem S385 | <<locked>> | 80% | 46,557 psi | 70% | 2930 fps | 99.6% |
| Vihtavuori N160 | <<locked>> | 80% | 55,724 psi | 84% | 3058 fps | 100% |
| Vihtavuori N165 | <<locked>> | 80% | 40,683 psi | 61% | 2799 fps | 98.4% |
| Vihtavuori N170 | <<locked>> | 92% | 52,344 psi | 78% | 3041 fps | 95.3% |
| Vihtavuori N550 | <<locked>> | 80% | 55,114 psi | 83% | 3064 fps | 100% |
| Vihtavuori N555 | <<locked>> | 80% | 45,876 psi | 69% | 2936 fps | 100% |
| Vihtavuori N560 | <<locked>> | 80% | 44,947 psi | 67% | 2986 fps | 97.5% |
| Vihtavuori N565 | <<locked>> | 80% | 37,289 psi | 56% | 2785 fps | 95.3% |
| Vihtavuori N568 | <<locked>> | 86% | 40,538 psi | 61% | 2904 fps | 95.1% |
| Vihtavuori N570 | 103 gr | 92% | 47,805 psi | 72% | 3100 fps | 95.4% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 55,129 psi | 83% | 3002 fps | 100% |
| Winchester StaBALL HD | <<locked>> | 80% | 39,436 psi | 59% | 2910 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 80% | 42,975 psi | 64% | 2858 fps | 98.5% |
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 73 powders for 7.82 Warbird loaded with the .308 | 170gr | Swift A-Frame. Vihtavuori N570 delivers the highest muzzle velocity at 3,317 fps; across all powders the maximum-charge window runs from 2,024 fps to 3,317 fps. Accurate 8700 gives the best case fill at 100 %, and 73 of the 73 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (460 MPa), the top charges use 56–90 %, leaving at least 10 % headroom. The 170.0 gr projectile in 0.308" calls for a 1:6.0 twist; slower twists will usually not stabilise this weight. Accurate 8700, 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. Hodgdon Retumbo, Vihtavuori N570, ReloadSwiss RS 76 rank at the top here: for 7.82 Warbird with the .308 | 170gr | Swift A-Frame they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, Accurate 8700, IMR 7977 Enduron, Lovex D100 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.