Load Specifications
Load data in caliber 7.82 Warbird with .311 | 174gr | Prvi Partizan FMJ BT bullet and 70 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 ReloadSwiss RS 80.
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% | 58,204 psi | 87% | 3071 fps | 100% |
| Accurate 4350 | <<locked>> | 82% | 58,479 psi | 88% | 3091 fps | 100% |
| Accurate MAGPRO | <<locked>> | 88% | 57,058 psi | 86% | 3179 fps | 99.2% |
| ADI AR 2209 | <<locked>> | 88% | 59,466 psi | 89% | 3163 fps | 100% |
| ADI AR 2213 | <<locked>> | 90% | 57,870 psi | 87% | 3179 fps | 99.8% |
| ADI AR 2217 | <<locked>> | 98% | 56,260 psi | 84% | 3146 fps | 99.9% |
| ADI AR 2218ᴾ | <<locked>> | 100% | 52,808 psi | 79% | 3186 fps | 97.3% |
| ADI AR 2225ᴾ | <<locked>> | 100% | 54,969 psi | 82% | 3169 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 84% | 59,524 psi | 89% | 3150 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 88% | 58,958 psi | 88% | 3150 fps | 100% |
| Alliant Reloder-22 | <<locked>> | 90% | 58,233 psi | 87% | 3173 fps | 100% |
| Alliant Reloder-23 | <<locked>> | 92% | 59,973 psi | 90% | 3127 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 96% | 60,162 psi | 90% | 3202 fps | 100% |
| Alliant Reloder-26 | <<locked>> | 86% | 56,869 psi | 85% | 3166 fps | 100% |
| Alliant Reloder-33ᴾ | <<locked>> | 100% | 58,450 psi | 88% | 3245 fps | 98.3% |
| Baschieri & Pellagri 109 | <<locked>> | 92% | 58,494 psi | 88% | 3130 fps | 98.3% |
| Bofors RP15 | <<locked>> | 92% | 57,392 psi | 86% | 3156 fps | 100% |
| Bofors RP30 | <<locked>> | 98% | 59,973 psi | 90% | 3222 fps | 100% |
| Bofors RP5 | <<locked>> | 90% | 58,233 psi | 87% | 3173 fps | 100% |
| Bofors RP7 | <<locked>> | 82% | 59,524 psi | 89% | 3091 fps | 100% |
| Hodgdon H1000 | <<locked>> | 96% | 57,899 psi | 87% | 3169 fps | 100% |
| Hodgdon H414 | <<locked>> | 82% | 59,785 psi | 90% | 3150 fps | 100% |
| Hodgdon H4831 | <<locked>> | 88% | 57,043 psi | 86% | 3107 fps | 99.4% |
| Hodgdon H4831 SC | <<locked>> | 90% | 59,901 psi | 90% | 3153 fps | 99.6% |
| Hodgdon Hybrid 100V | <<locked>> | 86% | 59,799 psi | 90% | 3064 fps | 100% |
| Hodgdon Retumbo | <<locked>> | 96% | 59,248 psi | 89% | 3297 fps | 100% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 37,507 psi | 56% | 1988 fps | 100% |
| IMR 4350 | <<locked>> | 84% | 58,001 psi | 87% | 3077 fps | 100% |
| IMR 4831 | <<locked>> | 84% | 58,697 psi | 88% | 3081 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 88% | 57,421 psi | 86% | 3084 fps | 99.5% |
| IMR 7828 SSC | <<locked>> | 92% | 60,234 psi | 90% | 3222 fps | 99.9% |
| IMR 8133 Enduronᴾ | <<locked>> | 100% | 50,314 psi | 75% | 3081 fps | 99.3% |
| Lovex S065 | <<locked>> | 82% | 58,233 psi | 87% | 3051 fps | 100% |
| Lovex S070 | <<locked>> | 82% | 56,652 psi | 85% | 3054 fps | 100% |
| Lovex S071 | <<locked>> | 96% | 59,756 psi | 90% | 3091 fps | 100% |
| Norma 204 | <<locked>> | 84% | 59,524 psi | 89% | 3143 fps | 100% |
| Norma 217ᴾ | <<locked>> | 100% | 51,097 psi | 77% | 3104 fps | 100% |
| Norma MRP | <<locked>> | 88% | 58,494 psi | 88% | 3192 fps | 100% |
| Norma URP | <<locked>> | 82% | 56,579 psi | 85% | 3071 fps | 100% |
| Ramshot Grand | <<locked>> | 90% | 57,305 psi | 86% | 3179 fps | 99.9% |
| Ramshot Hunter | <<locked>> | 84% | 59,379 psi | 89% | 3136 fps | 100% |
| Ramshot Magnum | <<locked>> | 94% | 60,249 psi | 90% | 3169 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 38,479 psi | 58% | 2034 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 82% | 58,856 psi | 88% | 3117 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 82% | 57,508 psi | 86% | 3146 fps | 100% |
| ReloadSwiss RS 76 | <<locked>> | 94% | 56,217 psi | 84% | 3225 fps | 100% |
| ReloadSwiss RS 80 | <<locked>> | 98% | 60,031 psi | 90% | 3251 fps | 99.7% |
| Rottweil R 904 | <<locked>> | 88% | 60,002 psi | 90% | 3130 fps | 99.8% |
| Rottweil R 905 | <<locked>> | 88% | 58,697 psi | 88% | 3140 fps | 100% |
| Rottweil R 907 | <<locked>> | 82% | 59,524 psi | 89% | 3091 fps | 100% |
| Shooters World Long Rifle | <<locked>> | 82% | 58,233 psi | 87% | 3051 fps | 100% |
| Shooters World SW4350 | <<locked>> | 82% | 56,652 psi | 85% | 3054 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 82% | 57,159 psi | 86% | 3005 fps | 100% |
| SNPE Vectan Tubal 8000 | <<locked>> | 88% | 58,276 psi | 87% | 3140 fps | 100% |
| Somchem S361 | <<locked>> | 86% | 57,841 psi | 87% | 3061 fps | 99.4% |
| Somchem S365 | <<locked>> | 84% | 57,972 psi | 87% | 3071 fps | 100% |
| Somchem S385 | <<locked>> | 88% | 59,117 psi | 89% | 3107 fps | 100% |
| Vihtavuori N160 | <<locked>> | 82% | 58,073 psi | 87% | 3058 fps | 100% |
| Vihtavuori N165 | <<locked>> | 92% | 59,132 psi | 89% | 3094 fps | 100% |
| Vihtavuori N170 | <<locked>> | 96% | 58,276 psi | 87% | 3110 fps | 96.7% |
| Vihtavuori N550 | <<locked>> | 82% | 57,450 psi | 86% | 3064 fps | 100% |
| Vihtavuori N555 | <<locked>> | 88% | 58,204 psi | 87% | 3107 fps | 100% |
| Vihtavuori N560 | <<locked>> | 88% | 57,899 psi | 87% | 3196 fps | 99.6% |
| Vihtavuori N565 | <<locked>> | 94% | 58,537 psi | 88% | 3179 fps | 99.7% |
| Vihtavuori N568 | <<locked>> | 96% | 56,086 psi | 84% | 3186 fps | 98.9% |
| Vihtavuori N570 | <<locked>> | 98% | 57,232 psi | 86% | 3248 fps | 97.7% |
| Winchester 6.5 StaBALL | <<locked>> | 82% | 57,798 psi | 87% | 3005 fps | 100% |
| Winchester 760 | <<locked>> | 82% | 59,973 psi | 90% | 3150 fps | 100% |
| Winchester StaBALL HD | <<locked>> | 92% | 60,147 psi | 90% | 3225 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 90% | 59,161 psi | 89% | 3107 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% | 41,539 psi | 62% | 2785 fps | 99.7% |
| Accurate 4350 | <<locked>> | 80% | 54,766 psi | 82% | 3038 fps | 100% |
| Accurate MAGPRO | <<locked>> | 80% | 42,960 psi | 64% | 2910 fps | 96.4% |
| ADI AR 2209 | <<locked>> | 80% | 45,440 psi | 68% | 2920 fps | 98.9% |
| ADI AR 2213 | <<locked>> | 80% | 40,814 psi | 61% | 2854 fps | 96.9% |
| ADI AR 2217 | <<locked>> | 84% | 34,867 psi | 52% | 2703 fps | 95% |
| ADI AR 2218 | <<locked>> | 98% | 49,023 psi | 73% | 3107 fps | 96.1% |
| ADI AR 2225 | <<locked>> | 82% | 29,747 psi | 45% | 2602 fps | 95.9% |
| Alliant Reloder-16 | <<locked>> | 80% | 52,214 psi | 78% | 3038 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 80% | 45,469 psi | 68% | 2913 fps | 98.9% |
| Alliant Reloder-22 | <<locked>> | 80% | 41,481 psi | 62% | 2864 fps | 98.2% |
| Alliant Reloder-23 | <<locked>> | 80% | 40,234 psi | 60% | 2808 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 80% | 34,679 psi | 52% | 2733 fps | 99.2% |
| Alliant Reloder-26 | <<locked>> | 80% | 45,411 psi | 68% | 2979 fps | 100% |
| Alliant Reloder-33 | <<locked>> | 94% | 46,485 psi | 70% | 3025 fps | 95.5% |
| Baschieri & Pellagri 109 | <<locked>> | 84% | 45,281 psi | 68% | 2887 fps | 95.3% |
| Bofors RP15 | <<locked>> | 80% | 38,595 psi | 58% | 2795 fps | 97.3% |
| Bofors RP30 | <<locked>> | 82% | 34,563 psi | 52% | 2717 fps | 95.1% |
| Bofors RP5 | <<locked>> | 80% | 41,481 psi | 62% | 2864 fps | 98.2% |
| Bofors RP7 | <<locked>> | 80% | 55,927 psi | 84% | 3035 fps | 100% |
| Hodgdon H1000 | <<locked>> | 82% | 35,433 psi | 53% | 2720 fps | 96% |
| Hodgdon H414 | <<locked>> | 80% | 55,999 psi | 84% | 3091 fps | 100% |
| Hodgdon H4831 | <<locked>> | 80% | 43,395 psi | 65% | 2858 fps | 97% |
| Hodgdon H4831 SC | <<locked>> | 80% | 42,670 psi | 64% | 2841 fps | 96.8% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 49,168 psi | 74% | 2907 fps | 100% |
| Hodgdon Retumbo | 82.9 gr | 80% | 33,866 psi | 51% | 2762 fps | 96.6% |
| Hodgdon TrailBoss | <<locked>> | 80% | 28,195 psi | 42% | 1781 fps | 100% |
| IMR 4350 | <<locked>> | 80% | 51,097 psi | 77% | 2966 fps | 99.9% |
| IMR 4831 | <<locked>> | 80% | 51,532 psi | 77% | 2972 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 80% | 44,512 psi | 67% | 2851 fps | 97.4% |
| IMR 7828 SSC | <<locked>> | 80% | 39,450 psi | 59% | 2831 fps | 96.5% |
| IMR 8133 Enduron | <<locked>> | 90% | 35,636 psi | 53% | 2766 fps | 95.5% |
| Lovex S065 | <<locked>> | 80% | 54,723 psi | 82% | 2999 fps | 100% |
| Lovex S070 | <<locked>> | 80% | 53,258 psi | 80% | 3002 fps | 100% |
| Lovex S071 | <<locked>> | 80% | 35,737 psi | 54% | 2657 fps | 98.7% |
| Norma 204 | <<locked>> | 80% | 52,025 psi | 78% | 3022 fps | 99.6% |
| Norma 217 | <<locked>> | 86% | 31,169 psi | 47% | 2661 fps | 95.9% |
| Norma MRP | <<locked>> | 80% | 44,019 psi | 66% | 2940 fps | 99.6% |
| Norma URP | <<locked>> | 80% | 53,084 psi | 80% | 3018 fps | 100% |
| Ramshot Grand | <<locked>> | 80% | 39,349 psi | 59% | 2841 fps | 96.9% |
| Ramshot Hunter | <<locked>> | 80% | 52,083 psi | 78% | 3025 fps | 100% |
| Ramshot Magnum | <<locked>> | 80% | 35,476 psi | 53% | 2717 fps | 97.4% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 28,863 psi | 43% | 1824 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 54,853 psi | 82% | 3058 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 53,476 psi | 80% | 3084 fps | 100% |
| ReloadSwiss RS 76 | 88.8 gr | 80% | 33,170 psi | 50% | 2736 fps | 97.5% |
| ReloadSwiss RS 80 | 98.4 gr | 88% | 40,828 psi | 61% | 2897 fps | 96% |
| Rottweil R 904 | <<locked>> | 80% | 46,369 psi | 70% | 2894 fps | 98.3% |
| Rottweil R 905 | <<locked>> | 80% | 45,063 psi | 68% | 2904 fps | 99% |
| Rottweil R 907 | <<locked>> | 80% | 55,927 psi | 84% | 3035 fps | 100% |
| Shooters World Long Rifle | <<locked>> | 80% | 54,723 psi | 82% | 2999 fps | 100% |
| Shooters World SW4350 | <<locked>> | 80% | 53,258 psi | 80% | 3002 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 53,679 psi | 80% | 2953 fps | 100% |
| SNPE Vectan Tubal 8000 | <<locked>> | 80% | 44,730 psi | 67% | 2897 fps | 98.9% |
| Somchem S361 | <<locked>> | 80% | 47,442 psi | 71% | 2881 fps | 97.9% |
| Somchem S365 | <<locked>> | 80% | 50,662 psi | 76% | 2966 fps | 100% |
| Somchem S385 | <<locked>> | 80% | 45,498 psi | 68% | 2877 fps | 99.5% |
| Vihtavuori N160 | <<locked>> | 80% | 54,505 psi | 82% | 3005 fps | 100% |
| Vihtavuori N165 | <<locked>> | 80% | 39,668 psi | 59% | 2746 fps | 98.3% |
| Vihtavuori N170 | <<locked>> | 94% | 54,375 psi | 82% | 3048 fps | 95.8% |
| Vihtavuori N550 | <<locked>> | 80% | 53,867 psi | 81% | 3012 fps | 100% |
| Vihtavuori N555 | <<locked>> | 80% | 44,773 psi | 67% | 2887 fps | 100% |
| Vihtavuori N560 | <<locked>> | 80% | 43,772 psi | 66% | 2930 fps | 97.2% |
| Vihtavuori N565 | <<locked>> | 82% | 38,827 psi | 58% | 2799 fps | 96% |
| Vihtavuori N568 | <<locked>> | 88% | 42,119 psi | 63% | 2917 fps | 95.7% |
| Vihtavuori N570 | <<locked>> | 94% | 49,501 psi | 74% | 3107 fps | 95.9% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 53,969 psi | 81% | 2953 fps | 100% |
| Winchester 760 | <<locked>> | 80% | 56,173 psi | 84% | 3094 fps | 100% |
| Winchester StaBALL HD | <<locked>> | 80% | 37,942 psi | 57% | 2858 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 80% | 41,872 psi | 63% | 2802 fps | 98.3% |
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 70 powders for 7.82 Warbird loaded with the .311 | 174gr | Prvi Partizan FMJ BT. Hodgdon Retumbo delivers the highest muzzle velocity at 3,297 fps; across all powders the maximum-charge window runs from 1,988 fps to 3,297 fps. ADI AR 2218 gives the best case fill at 100 %, and 70 of the 70 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 174.0 gr projectile in 0.311" calls for a 1:13.0 twist; slower twists will usually not stabilise this weight. ADI AR 2218, ADI AR 2225, Alliant Reloder-33 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, ReloadSwiss RS 80 rank at the top here: for 7.82 Warbird with the .311 | 174gr | Prvi Partizan FMJ BT 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.