Load Specifications
Load data in caliber 7.7 x 58 mm Arisaka with .311 | 182gr | Prvi Partizan FMJ BT bullet and 57 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are ReloadSwiss RS 60, Alliant Reloder-17 and SNPE Vectan SP 11.
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: 25.9"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2495 | <<locked>> | 86% | 38,928 psi | 87% | 2379 fps | 100% |
| Accurate 4064 | <<locked>> | 88% | 39,001 psi | 87% | 2411 fps | 99.9% |
| Accurate 4350 | <<locked>> | 98% | 39,349 psi | 88% | 2477 fps | 96.1% |
| ADI AR 2206H | <<locked>> | 82% | 38,609 psi | 86% | 2382 fps | 97.2% |
| ADI AR 2208 | <<locked>> | 88% | 39,566 psi | 88% | 2382 fps | 96.6% |
| Alliant AR-Comp | <<locked>> | 82% | 39,262 psi | 87% | 2392 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 86% | 39,740 psi | 88% | 2493 fps | 96.3% |
| Alliant Reloder- TS 15.5 | <<locked>> | 90% | 40,683 psi | 90% | 2444 fps | 98.5% |
| Alliant Reloder-15 | <<locked>> | 86% | 38,870 psi | 86% | 2408 fps | 96.7% |
| Alliant Reloder-16 | <<locked>> | 98% | 40,640 psi | 90% | 2490 fps | 96.3% |
| Alliant Reloder-17 | <<locked>> | 94% | 40,669 psi | 90% | 2523 fps | 98.1% |
| Baschieri & Pellagri 107 | <<locked>> | 84% | 39,900 psi | 89% | 2425 fps | 96.3% |
| Bofors RP3 | <<locked>> | 90% | 40,306 psi | 90% | 2451 fps | 98.5% |
| Hodgdon BL-C2 | <<locked>> | 82% | 38,537 psi | 86% | 2408 fps | 98.8% |
| Hodgdon H4895 | <<locked>> | 82% | 38,870 psi | 86% | 2392 fps | 97.8% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 39,276 psi | 87% | 2434 fps | 97.7% |
| Hodgdon LEVERevolution | <<locked>> | 86% | 39,291 psi | 87% | 2454 fps | 98.3% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 34,389 psi | 76% | 1545 fps | 100% |
| Hodgdon VARGET | <<locked>> | 84% | 39,914 psi | 89% | 2398 fps | 97.9% |
| IMR 3031 | <<locked>> | 84% | 40,089 psi | 89% | 2441 fps | 100% |
| IMR 4064 | <<locked>> | 86% | 39,073 psi | 87% | 2365 fps | 96.8% |
| IMR 4831ᴾ | <<locked>> | 100% | 40,596 psi | 90% | 2480 fps | 96.5% |
| IMR 4895 | <<locked>> | 86% | 39,711 psi | 88% | 2438 fps | 97.6% |
| Lovex D073.6 | <<locked>> | 84% | 39,175 psi | 87% | 2408 fps | 99.5% |
| Lovex S060 | <<locked>> | 82% | 39,436 psi | 88% | 2329 fps | 97.3% |
| Lovex S062 | <<locked>> | 86% | 38,377 psi | 85% | 2369 fps | 98.4% |
| Norma 201 | <<locked>> | 84% | 40,059 psi | 89% | 2385 fps | 98.6% |
| Norma 202 | <<locked>> | 84% | 40,335 psi | 90% | 2402 fps | 99.9% |
| Norma 203B | <<locked>> | 86% | 38,116 psi | 85% | 2398 fps | 97.1% |
| Norma URP | <<locked>> | 98% | 40,263 psi | 90% | 2480 fps | 96.1% |
| Ramshot Big Game | <<locked>> | 88% | 40,495 psi | 90% | 2464 fps | 97.4% |
| Ramshot Wild Boar | <<locked>> | 82% | 39,479 psi | 88% | 2408 fps | 97.3% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 34,621 psi | 77% | 1581 fps | 100% |
| ReloadSwiss RS 52 | <<locked>> | 86% | 40,466 psi | 90% | 2503 fps | 97.1% |
| ReloadSwiss RS 60 | <<locked>> | 92% | 40,669 psi | 90% | 2536 fps | 99.7% |
| Rottweil R 902 | <<locked>> | 86% | 40,596 psi | 90% | 2385 fps | 98.7% |
| Rottweil R 903 | <<locked>> | 92% | 40,190 psi | 89% | 2441 fps | 98.3% |
| Shooters World Match Rifle | <<locked>> | 84% | 39,175 psi | 87% | 2408 fps | 99.5% |
| Shooters World Precision | <<locked>> | 86% | 38,377 psi | 85% | 2369 fps | 98.4% |
| SNPE Vectan SP 11 | <<locked>> | 90% | 39,291 psi | 87% | 2444 fps | 97.2% |
| SNPE Vectan SP 9 | <<locked>> | 84% | 39,537 psi | 88% | 2398 fps | 97.3% |
| SNPE Vectan Tubal 3000 | <<locked>> | 82% | 39,711 psi | 88% | 2310 fps | 99.8% |
| SNPE Vectan Tubal 5000 | <<locked>> | 88% | 38,914 psi | 87% | 2313 fps | 100% |
| Somchem S335 | <<locked>> | 82% | 38,943 psi | 87% | 2313 fps | 99.9% |
| Somchem S341 | <<locked>> | 84% | 40,669 psi | 90% | 2411 fps | 97.5% |
| Somchem S355 | <<locked>> | 90% | 38,827 psi | 86% | 2402 fps | 97.7% |
| Somchem S365ᴾ | <<locked>> | 100% | 38,189 psi | 85% | 2480 fps | 98.8% |
| Vihtavuori N133 | <<locked>> | 82% | 39,740 psi | 88% | 2310 fps | 100% |
| Vihtavuori N135 | <<locked>> | 86% | 39,479 psi | 88% | 2379 fps | 100% |
| Vihtavuori N140 | <<locked>> | 86% | 40,466 psi | 90% | 2382 fps | 99.9% |
| Vihtavuori N150 | <<locked>> | 92% | 39,610 psi | 88% | 2392 fps | 99% |
| Vihtavuori N160 | <<locked>> | 96% | 39,682 psi | 88% | 2428 fps | 95.7% |
| Vihtavuori N530 | <<locked>> | 82% | 40,553 psi | 90% | 2388 fps | 98.7% |
| Vihtavuori N540 | <<locked>> | 86% | 38,899 psi | 87% | 2375 fps | 99.7% |
| Winchester 6.5 StaBALL | <<locked>> | 94% | 38,406 psi | 85% | 2375 fps | 97.4% |
| Winchester 748 | <<locked>> | 82% | 39,334 psi | 87% | 2428 fps | 99.2% |
| Winchester StaBALL Match | <<locked>> | 84% | 38,450 psi | 86% | 2398 fps | 97.7% |
Recommended = one of the top powders for this cartridge and bullet combination.
Start Load - Barrel Length: 25.9"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2495 | <<locked>> | 80% | 31,894 psi | 71% | 2247 fps | 100% |
| Accurate 4064 | <<locked>> | 80% | 30,168 psi | 67% | 2228 fps | 98.7% |
| Accurate 4350 | <<locked>> | 96% | 36,535 psi | 81% | 2425 fps | 95.3% |
| ADI AR 2206H | <<locked>> | 80% | 36,129 psi | 80% | 2329 fps | 96.4% |
| ADI AR 2208 | <<locked>> | 84% | 34,838 psi | 77% | 2287 fps | 95.1% |
| Alliant AR-Comp | <<locked>> | 80% | 36,738 psi | 82% | 2352 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 84% | 37,217 psi | 83% | 2438 fps | 95.3% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 29,631 psi | 66% | 2211 fps | 95.2% |
| Alliant Reloder-15 | <<locked>> | 82% | 34,403 psi | 77% | 2316 fps | 95.3% |
| Alliant Reloder-16 | <<locked>> | 96% | 38,334 psi | 85% | 2441 fps | 95.5% |
| Alliant Reloder-17 | 43.3 gr | 88% | 33,402 psi | 74% | 2362 fps | 95.6% |
| Baschieri & Pellagri 107 | <<locked>> | 82% | 37,391 psi | 83% | 2375 fps | 95.5% |
| Bofors RP3 | <<locked>> | 80% | 28,776 psi | 64% | 2205 fps | 95% |
| Hodgdon BL-C2 | <<locked>> | 80% | 36,013 psi | 80% | 2359 fps | 98.3% |
| Hodgdon H4895 | <<locked>> | 80% | 36,332 psi | 81% | 2343 fps | 97.1% |
| Hodgdon Hybrid 100V | <<locked>> | 94% | 32,764 psi | 73% | 2293 fps | 95.5% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 32,430 psi | 72% | 2303 fps | 96.3% |
| Hodgdon TrailBoss | <<locked>> | 80% | 25,411 psi | 57% | 1375 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 35,128 psi | 78% | 2300 fps | 96.6% |
| IMR 3031 | <<locked>> | 80% | 35,157 psi | 78% | 2349 fps | 100% |
| IMR 4064 | <<locked>> | 82% | 34,316 psi | 76% | 2267 fps | 95.2% |
| IMR 4831 | <<locked>> | 98% | 38,189 psi | 85% | 2434 fps | 95.8% |
| IMR 4895 | <<locked>> | 80% | 32,822 psi | 73% | 2293 fps | 95.5% |
| Lovex D073.6 | <<locked>> | 80% | 34,287 psi | 76% | 2313 fps | 98.8% |
| Lovex S060 | <<locked>> | 80% | 37,144 psi | 83% | 2283 fps | 96.7% |
| Lovex S062 | <<locked>> | 80% | 31,923 psi | 71% | 2231 fps | 96.6% |
| Norma 201 | <<locked>> | 80% | 35,491 psi | 79% | 2293 fps | 97.6% |
| Norma 202 | <<locked>> | 80% | 35,375 psi | 79% | 2306 fps | 99.4% |
| Norma 203B | <<locked>> | 82% | 33,750 psi | 75% | 2306 fps | 95.7% |
| Norma URP | <<locked>> | 96% | 37,652 psi | 84% | 2428 fps | 95.3% |
| Ramshot Big Game | <<locked>> | 82% | 33,286 psi | 74% | 2310 fps | 95.1% |
| Ramshot Wild Boar | <<locked>> | 80% | 36,912 psi | 82% | 2359 fps | 96.6% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 25,730 psi | 57% | 1414 fps | 100% |
| ReloadSwiss RS 52 | <<locked>> | 82% | 35,244 psi | 78% | 2395 fps | 95.5% |
| ReloadSwiss RS 60 | 39.4 gr | 80% | 27,688 psi | 62% | 2218 fps | 95.5% |
| Rottweil R 902 | <<locked>> | 80% | 33,866 psi | 75% | 2251 fps | 97.1% |
| Rottweil R 903 | <<locked>> | 84% | 31,024 psi | 69% | 2251 fps | 95.6% |
| Shooters World Match Rifle | <<locked>> | 80% | 34,287 psi | 76% | 2313 fps | 98.8% |
| Shooters World Precision | <<locked>> | 80% | 31,923 psi | 71% | 2231 fps | 96.6% |
| SNPE Vectan SP 11 | 41.7 gr | 86% | 34,722 psi | 77% | 2349 fps | 95.8% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 34,838 psi | 77% | 2303 fps | 96% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 37,318 psi | 83% | 2267 fps | 99.5% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 30,458 psi | 68% | 2146 fps | 99.1% |
| Somchem S335 | <<locked>> | 80% | 36,666 psi | 82% | 2270 fps | 99.8% |
| Somchem S341 | <<locked>> | 80% | 35,578 psi | 79% | 2313 fps | 96.1% |
| Somchem S355 | <<locked>> | 84% | 32,155 psi | 72% | 2260 fps | 95.7% |
| Somchem S365 | <<locked>> | 92% | 29,660 psi | 66% | 2280 fps | 95.9% |
| Vihtavuori N133 | <<locked>> | 80% | 37,333 psi | 83% | 2270 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 32,503 psi | 72% | 2247 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 33,431 psi | 74% | 2251 fps | 99.3% |
| Vihtavuori N150 | <<locked>> | 80% | 26,847 psi | 60% | 2113 fps | 95.1% |
| Vihtavuori N160 | <<locked>> | 94% | 37,391 psi | 83% | 2382 fps | 95% |
| Vihtavuori N530 | <<locked>> | 80% | 37,840 psi | 84% | 2339 fps | 98.2% |
| Vihtavuori N540 | <<locked>> | 80% | 32,053 psi | 71% | 2238 fps | 98.6% |
| Winchester 6.5 StaBALL | <<locked>> | 90% | 33,576 psi | 75% | 2274 fps | 95.8% |
| Winchester 748 | <<locked>> | 80% | 36,753 psi | 82% | 2379 fps | 98.7% |
| Winchester StaBALL Match | <<locked>> | 80% | 33,823 psi | 75% | 2303 fps | 96.4% |
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 80 powders for 7.7 x 58 mm Arisaka loaded with the .311 | 182gr | Prvi Partizan FMJ BT. ReloadSwiss RS 60 delivers the highest muzzle velocity at 2,536 fps; across all powders the maximum-charge window runs from 1,545 fps to 2,536 fps. Alliant Reloder-23 gives the best case fill at 100 %, and 80 of the 80 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (310 MPa), the top charges use 67–90 %, leaving at least 10 % headroom. The 182.0 gr projectile in 0.311" calls for a 1:12.5 twist; slower twists will usually not stabilise this weight. Alliant Reloder-23, Hodgdon Hybrid 100V, Hodgdon TrailBoss 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. ReloadSwiss RS 60, Alliant Reloder-17, SNPE Vectan SP 11 rank at the top here: for 7.7 x 58 mm Arisaka with the .311 | 182gr | Prvi Partizan FMJ BT they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, Accurate 2700, Alliant Reloder-23, Bofors RP7 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.