Load Specifications
Load data in caliber 7.82 Warbird with .311 | 180gr | Sellier & Bellot FMJ bullet and 69 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 Vihtavuori N568.
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% | 59,712 psi | 90% | 3045 fps | 100% |
| Accurate 4350 | <<locked>> | 82% | 59,959 psi | 90% | 3068 fps | 100% |
| Accurate High Country | <<locked>> | 86% | 57,682 psi | 86% | 3159 fps | 99.9% |
| Accurate MAGPRO | <<locked>> | 88% | 58,842 psi | 88% | 3166 fps | 99.6% |
| ADI AR 2209 | <<locked>> | 86% | 57,130 psi | 86% | 3084 fps | 100% |
| ADI AR 2213 | <<locked>> | 90% | 59,437 psi | 89% | 3159 fps | 99.9% |
| ADI AR 2217 | <<locked>> | 98% | 58,131 psi | 87% | 3133 fps | 100% |
| ADI AR 2218ᴾ | <<locked>> | 100% | 54,592 psi | 82% | 3186 fps | 98.1% |
| ADI AR 2225ᴾ | <<locked>> | 100% | 56,724 psi | 85% | 3153 fps | 100% |
| Alliant Power Pro Varmint | <<locked>> | 86% | 57,334 psi | 86% | 3081 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 82% | 57,203 psi | 86% | 3071 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 86% | 56,724 psi | 85% | 3074 fps | 100% |
| Alliant Reloder-22 | <<locked>> | 90% | 59,785 psi | 90% | 3153 fps | 100% |
| Alliant Reloder-23 | <<locked>> | 90% | 57,769 psi | 87% | 3051 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 94% | 58,044 psi | 87% | 3127 fps | 100% |
| Alliant Reloder-26 | <<locked>> | 86% | 58,639 psi | 88% | 3146 fps | 100% |
| Alliant Reloder-33 | <<locked>> | 98% | 56,028 psi | 84% | 3163 fps | 98.2% |
| Alliant Reloder-50ᴾ | <<locked>> | 100% | 51,517 psi | 77% | 3074 fps | 96.8% |
| Baschieri & Pellagri 109 | <<locked>> | 92% | 59,857 psi | 90% | 3114 fps | 98.8% |
| Bofors RP15 | <<locked>> | 92% | 58,914 psi | 88% | 3140 fps | 100% |
| Bofors RP30 | <<locked>> | 96% | 57,827 psi | 87% | 3146 fps | 100% |
| Bofors RP5 | <<locked>> | 90% | 59,785 psi | 90% | 3153 fps | 100% |
| Hodgdon H1000 | <<locked>> | 96% | 59,828 psi | 90% | 3156 fps | 100% |
| Hodgdon H4831 | <<locked>> | 88% | 58,450 psi | 88% | 3087 fps | 99.7% |
| Hodgdon H4831 SC | <<locked>> | 88% | 57,363 psi | 86% | 3071 fps | 99.6% |
| Hodgdon Hybrid 100V | <<locked>> | 84% | 57,450 psi | 86% | 2986 fps | 100% |
| Hodgdon Retumbo | <<locked>> | 94% | 57,159 psi | 86% | 3222 fps | 100% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 37,681 psi | 56% | 1959 fps | 100% |
| IMR 4350 | <<locked>> | 84% | 59,277 psi | 89% | 3054 fps | 100% |
| IMR 4831 | <<locked>> | 84% | 60,089 psi | 90% | 3054 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 88% | 58,682 psi | 88% | 3064 fps | 99.7% |
| IMR 7828 SSC | <<locked>> | 90% | 57,754 psi | 87% | 3143 fps | 99.9% |
| IMR 8133 Enduronᴾ | <<locked>> | 100% | 51,967 psi | 78% | 3068 fps | 99.7% |
| Lovex S065 | <<locked>> | 82% | 59,451 psi | 89% | 3028 fps | 100% |
| Lovex S070 | <<locked>> | 82% | 57,899 psi | 87% | 3028 fps | 100% |
| Lovex S071 | <<locked>> | 94% | 57,653 psi | 86% | 3018 fps | 100% |
| Norma 204 | <<locked>> | 82% | 57,014 psi | 85% | 3064 fps | 100% |
| Norma 217ᴾ | <<locked>> | 100% | 53,084 psi | 80% | 3094 fps | 100% |
| Norma MRP | <<locked>> | 88% | 60,147 psi | 90% | 3169 fps | 100% |
| Norma URP | <<locked>> | 82% | 57,928 psi | 87% | 3048 fps | 100% |
| Ramshot Grand | <<locked>> | 90% | 59,146 psi | 89% | 3166 fps | 100% |
| Ramshot Hunter | <<locked>> | 82% | 57,000 psi | 85% | 3058 fps | 100% |
| Ramshot Magnum | <<locked>> | 92% | 57,551 psi | 86% | 3087 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 38,667 psi | 58% | 2008 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 82% | 60,350 psi | 90% | 3094 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 82% | 59,103 psi | 89% | 3123 fps | 100% |
| ReloadSwiss RS 76 | <<locked>> | 94% | 58,175 psi | 87% | 3209 fps | 100% |
| ReloadSwiss RS 80 | <<locked>> | 96% | 57,522 psi | 86% | 3173 fps | 99.6% |
| Rottweil R 904 | <<locked>> | 86% | 57,624 psi | 86% | 3051 fps | 99.8% |
| Rottweil R 905 | <<locked>> | 86% | 56,434 psi | 85% | 3064 fps | 100% |
| Shooters World Long Rifle | <<locked>> | 82% | 59,451 psi | 89% | 3028 fps | 100% |
| Shooters World SW4350 | <<locked>> | 82% | 57,899 psi | 87% | 3028 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 82% | 58,363 psi | 87% | 2982 fps | 100% |
| SNPE Vectan Tubal 8000 | <<locked>> | 88% | 59,973 psi | 90% | 3120 fps | 100% |
| Somchem S361 | <<locked>> | 86% | 59,306 psi | 89% | 3041 fps | 99.7% |
| Somchem S365 | <<locked>> | 84% | 59,524 psi | 89% | 3048 fps | 100% |
| Somchem S385 | <<locked>> | 86% | 56,739 psi | 85% | 3028 fps | 100% |
| Vihtavuori N160 | <<locked>> | 82% | 59,422 psi | 89% | 3031 fps | 100% |
| Vihtavuori N165 | <<locked>> | 90% | 56,710 psi | 85% | 3015 fps | 100% |
| Vihtavuori N170 | <<locked>> | 96% | 59,770 psi | 90% | 3097 fps | 97.3% |
| Vihtavuori N550 | <<locked>> | 82% | 58,798 psi | 88% | 3041 fps | 100% |
| Vihtavuori N555 | <<locked>> | 88% | 59,741 psi | 90% | 3081 fps | 100% |
| Vihtavuori N560 | <<locked>> | 88% | 59,466 psi | 89% | 3176 fps | 99.8% |
| Vihtavuori N565 | <<locked>> | 92% | 56,521 psi | 85% | 3104 fps | 99.7% |
| Vihtavuori N568 | <<locked>> | 96% | 57,899 psi | 87% | 3173 fps | 99.4% |
| Vihtavuori N570 | <<locked>> | 98% | 59,350 psi | 89% | 3241 fps | 98.4% |
| Winchester 6.5 StaBALL | <<locked>> | 82% | 59,146 psi | 89% | 2979 fps | 100% |
| Winchester StaBALL HD | <<locked>> | 90% | 57,812 psi | 87% | 3146 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 88% | 56,637 psi | 85% | 3028 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% | 42,714 psi | 64% | 2772 fps | 99.9% |
| Accurate 4350 | <<locked>> | 80% | 56,173 psi | 84% | 3015 fps | 100% |
| Accurate High Country | <<locked>> | 80% | 46,833 psi | 70% | 2966 fps | 98.7% |
| Accurate MAGPRO | <<locked>> | 80% | 44,237 psi | 66% | 2900 fps | 97.1% |
| ADI AR 2209 | <<locked>> | 80% | 46,630 psi | 70% | 2904 fps | 99.3% |
| ADI AR 2213 | <<locked>> | 80% | 41,945 psi | 63% | 2841 fps | 97.6% |
| ADI AR 2217 | <<locked>> | 84% | 35,853 psi | 54% | 2694 fps | 96% |
| ADI AR 2218 | <<locked>> | 96% | 47,094 psi | 71% | 3031 fps | 96% |
| ADI AR 2225 | <<locked>> | 80% | 28,631 psi | 43% | 2533 fps | 95.7% |
| Alliant Power Pro Varmint | <<locked>> | 80% | 47,065 psi | 71% | 2904 fps | 99.3% |
| Alliant Reloder-16 | <<locked>> | 80% | 53,563 psi | 80% | 3015 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 80% | 46,630 psi | 70% | 2897 fps | 99.3% |
| Alliant Reloder-22 | <<locked>> | 80% | 42,728 psi | 64% | 2851 fps | 98.8% |
| Alliant Reloder-23 | <<locked>> | 80% | 41,452 psi | 62% | 2789 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 80% | 35,766 psi | 54% | 2723 fps | 99.6% |
| Alliant Reloder-26 | <<locked>> | 80% | 46,920 psi | 70% | 2963 fps | 100% |
| Alliant Reloder-33 | <<locked>> | 92% | 44,686 psi | 67% | 2949 fps | 95.4% |
| Alliant Reloder-50 | <<locked>> | 98% | 47,805 psi | 72% | 3005 fps | 95.8% |
| Baschieri & Pellagri 109 | <<locked>> | 82% | 43,410 psi | 65% | 2812 fps | 95.1% |
| Bofors RP15 | <<locked>> | 80% | 39,726 psi | 60% | 2782 fps | 98% |
| Bofors RP30 | <<locked>> | 80% | 33,359 psi | 50% | 2648 fps | 95.1% |
| Bofors RP5 | <<locked>> | 80% | 42,728 psi | 64% | 2851 fps | 98.8% |
| Hodgdon H1000 | <<locked>> | 80% | 33,982 psi | 51% | 2648 fps | 95.8% |
| Hodgdon H4831 | <<locked>> | 80% | 44,527 psi | 67% | 2841 fps | 97.6% |
| Hodgdon H4831 SC | <<locked>> | 80% | 43,787 psi | 66% | 2828 fps | 97.4% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 50,415 psi | 76% | 2884 fps | 100% |
| Hodgdon Retumbo | 83 gr | 80% | 34,925 psi | 52% | 2759 fps | 97.5% |
| Hodgdon TrailBoss | <<locked>> | 80% | 28,224 psi | 42% | 1755 fps | 100% |
| IMR 4350 | <<locked>> | 80% | 52,243 psi | 78% | 2946 fps | 100% |
| IMR 4831 | <<locked>> | 80% | 52,808 psi | 79% | 2946 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 80% | 45,542 psi | 68% | 2835 fps | 98% |
| IMR 7828 SSC | <<locked>> | 80% | 40,625 psi | 61% | 2822 fps | 97.3% |
| IMR 8133 Enduron | <<locked>> | 88% | 34,432 psi | 52% | 2697 fps | 95.4% |
| Lovex S065 | <<locked>> | 80% | 55,883 psi | 84% | 2976 fps | 100% |
| Lovex S070 | <<locked>> | 80% | 54,447 psi | 82% | 2976 fps | 100% |
| Lovex S071 | <<locked>> | 80% | 36,782 psi | 55% | 2644 fps | 99.2% |
| Norma 204 | <<locked>> | 80% | 53,287 psi | 80% | 3002 fps | 99.8% |
| Norma 217 | <<locked>> | 84% | 30,182 psi | 45% | 2598 fps | 95.9% |
| Norma MRP | <<locked>> | 80% | 45,339 psi | 68% | 2923 fps | 99.8% |
| Norma URP | <<locked>> | 80% | 54,375 psi | 82% | 2992 fps | 100% |
| Ramshot Grand | <<locked>> | 80% | 40,756 psi | 61% | 2835 fps | 97.7% |
| Ramshot Hunter | <<locked>> | 80% | 53,374 psi | 80% | 3002 fps | 100% |
| Ramshot Magnum | <<locked>> | 80% | 36,666 psi | 55% | 2707 fps | 98.1% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 29,037 psi | 44% | 1798 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 56,333 psi | 84% | 3035 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 54,969 psi | 82% | 3064 fps | 100% |
| ReloadSwiss RS 76 | <<locked>> | 80% | 34,258 psi | 51% | 2733 fps | 98.4% |
| ReloadSwiss RS 80 | <<locked>> | 86% | 39,247 psi | 59% | 2825 fps | 95.8% |
| Rottweil R 904 | <<locked>> | 80% | 47,485 psi | 71% | 2877 fps | 98.8% |
| Rottweil R 905 | <<locked>> | 80% | 46,267 psi | 69% | 2890 fps | 99.4% |
| Shooters World Long Rifle | <<locked>> | 80% | 55,883 psi | 84% | 2976 fps | 100% |
| Shooters World SW4350 | <<locked>> | 80% | 54,447 psi | 82% | 2976 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 54,810 psi | 82% | 2927 fps | 100% |
| SNPE Vectan Tubal 8000 | <<locked>> | 80% | 45,934 psi | 69% | 2884 fps | 99.3% |
| Somchem S361 | <<locked>> | 80% | 48,559 psi | 73% | 2864 fps | 98.4% |
| Somchem S365 | <<locked>> | 80% | 52,054 psi | 78% | 2943 fps | 100% |
| Somchem S385 | <<locked>> | 80% | 46,688 psi | 70% | 2861 fps | 99.7% |
| Vihtavuori N160 | <<locked>> | 80% | 55,796 psi | 84% | 2982 fps | 100% |
| Vihtavuori N165 | <<locked>> | 80% | 40,741 psi | 61% | 2733 fps | 98.8% |
| Vihtavuori N170 | <<locked>> | 92% | 52,214 psi | 78% | 2972 fps | 95.7% |
| Vihtavuori N550 | <<locked>> | 80% | 55,129 psi | 83% | 2989 fps | 100% |
| Vihtavuori N555 | <<locked>> | 80% | 46,064 psi | 69% | 2871 fps | 100% |
| Vihtavuori N560 | <<locked>> | 80% | 45,049 psi | 68% | 2917 fps | 97.9% |
| Vihtavuori N565 | <<locked>> | 80% | 37,347 psi | 56% | 2726 fps | 95.9% |
| Vihtavuori N568 | 93.1 gr | 86% | 40,422 psi | 61% | 2841 fps | 95.6% |
| Vihtavuori N570 | 99.1 gr | 92% | 47,703 psi | 72% | 3031 fps | 95.9% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 55,245 psi | 83% | 2930 fps | 100% |
| Winchester StaBALL HD | <<locked>> | 80% | 39,552 psi | 59% | 2848 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 80% | 43,004 psi | 64% | 2789 fps | 98.8% |
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 69 powders for 7.82 Warbird loaded with the .311 | 180gr | Sellier & Bellot FMJ. Vihtavuori N570 delivers the highest muzzle velocity at 3,241 fps; across all powders the maximum-charge window runs from 1,959 fps to 3,241 fps. ADI AR 2218 gives the best case fill at 100 %, and 69 of the 69 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 180.0 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-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, Vihtavuori N570, Vihtavuori N568 rank at the top here: for 7.82 Warbird with the .311 | 180gr | Sellier & Bellot FMJ 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.