Load Specifications
Load data in caliber 7.7 x 58 mm Arisaka with .310 | 215gr | Rhino Solid Shank bullet and 49 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Somchem S365, Alliant Reloder-17 and ReloadSwiss RS 62.
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.
A valid access license is required to use the Personalized Load Calculator.
You can find more information in our FAQ: How can I use the Personalized Load Calculator?
Max Load - Barrel Length: 25.9"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 4064 | <<locked>> | 84% | 39,465 psi | 88% | 2205 fps | 100% |
| Accurate 4350 | <<locked>> | 94% | 40,001 psi | 89% | 2287 fps | 98.2% |
| ADI AR 2208 | <<locked>> | 84% | 39,117 psi | 87% | 2182 fps | 98.2% |
| Alliant Power Pro 2000-MR | <<locked>> | 82% | 39,146 psi | 87% | 2293 fps | 98.2% |
| Alliant Reloder- TS 15.5 | <<locked>> | 84% | 38,406 psi | 85% | 2201 fps | 99.3% |
| Alliant Reloder-15 | <<locked>> | 82% | 38,798 psi | 86% | 2208 fps | 98.4% |
| Alliant Reloder-16 | <<locked>> | 94% | 40,480 psi | 90% | 2300 fps | 98.3% |
| Alliant Reloder-17 | <<locked>> | 90% | 40,306 psi | 90% | 2326 fps | 99.5% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 34,360 psi | 76% | 2215 fps | 98.1% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 37,623 psi | 84% | 2333 fps | 96.9% |
| Bofors RP3 | <<locked>> | 86% | 40,524 psi | 90% | 2251 fps | 99.6% |
| Hodgdon H380 | <<locked>> | 84% | 39,088 psi | 87% | 2211 fps | 97.3% |
| Hodgdon Hybrid 100V | <<locked>> | 96% | 39,407 psi | 88% | 2244 fps | 99.2% |
| Hodgdon LEVERevolution | <<locked>> | 84% | 39,523 psi | 88% | 2257 fps | 99.5% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,215 psi | 78% | 1421 fps | 100% |
| Hodgdon VARGET | <<locked>> | 82% | 38,841 psi | 86% | 2182 fps | 99.1% |
| IMR 3031 | <<locked>> | 82% | 39,407 psi | 88% | 2211 fps | 100% |
| IMR 4064 | <<locked>> | 84% | 38,290 psi | 85% | 2159 fps | 98.3% |
| IMR 4831 | <<locked>> | 98% | 39,102 psi | 87% | 2257 fps | 98% |
| IMR 4895 | <<locked>> | 82% | 39,697 psi | 88% | 2234 fps | 99% |
| Lovex S062 | <<locked>> | 82% | 38,392 psi | 85% | 2169 fps | 99.5% |
| Lovex S065 | <<locked>> | 90% | 40,118 psi | 89% | 2205 fps | 96.6% |
| Norma 203B | <<locked>> | 84% | 40,596 psi | 90% | 2244 fps | 99.1% |
| Norma URP | <<locked>> | 94% | 40,277 psi | 90% | 2287 fps | 98.1% |
| Ramshot Big Game | <<locked>> | 84% | 40,030 psi | 89% | 2257 fps | 98.9% |
| Ramshot Hunter | <<locked>> | 94% | 39,697 psi | 88% | 2277 fps | 96% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 35,607 psi | 79% | 1453 fps | 100% |
| ReloadSwiss RS 52 | <<locked>> | 82% | 40,234 psi | 89% | 2293 fps | 98.7% |
| ReloadSwiss RS 60 | <<locked>> | 88% | 40,176 psi | 89% | 2329 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 94% | 39,958 psi | 89% | 2310 fps | 97.8% |
| ReloadSwiss RS 70 | <<locked>> | 94% | 40,567 psi | 90% | 2320 fps | 97.2% |
| Rottweil R 902 | <<locked>> | 82% | 40,422 psi | 90% | 2185 fps | 99.7% |
| Rottweil R 903 | <<locked>> | 88% | 40,437 psi | 90% | 2244 fps | 99.5% |
| Shooters World Long Rifle | <<locked>> | 90% | 40,118 psi | 89% | 2205 fps | 96.6% |
| Shooters World Precision | <<locked>> | 82% | 38,392 psi | 85% | 2169 fps | 99.5% |
| SNPE Vectan SP 11 | <<locked>> | 86% | 39,073 psi | 87% | 2247 fps | 98.8% |
| SNPE Vectan Tubal 5000 | <<locked>> | 84% | 38,580 psi | 86% | 2106 fps | 100% |
| Somchem S355 | <<locked>> | 86% | 39,001 psi | 87% | 2205 fps | 99.1% |
| Somchem S365 | <<locked>> | 96% | 38,406 psi | 85% | 2293 fps | 99.8% |
| Unknown powder | <<locked>> | 90% | 39,044 psi | 87% | 2247 fps | 97.1% |
| Vihtavuori N135 | <<locked>> | 82% | 39,581 psi | 88% | 2165 fps | 100% |
| Vihtavuori N140 | <<locked>> | 82% | 40,219 psi | 89% | 2172 fps | 100% |
| Vihtavuori N150 | <<locked>> | 88% | 39,508 psi | 88% | 2192 fps | 99.8% |
| Vihtavuori N160 | <<locked>> | 92% | 39,842 psi | 89% | 2241 fps | 97.8% |
| Vihtavuori N540 | <<locked>> | 82% | 38,580 psi | 86% | 2169 fps | 100% |
| Vihtavuori N550 | <<locked>> | 92% | 38,986 psi | 87% | 2247 fps | 97.5% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 36,666 psi | 82% | 2277 fps | 98.1% |
| Winchester 6.5 StaBALL | <<locked>> | 92% | 40,205 psi | 89% | 2228 fps | 99.4% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 30,647 psi | 68% | 2201 fps | 97.4% |
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 4064 | <<locked>> | 80% | 34,795 psi | 77% | 2126 fps | 100% |
| Accurate 4350 | <<locked>> | 86% | 30,385 psi | 68% | 2103 fps | 95.3% |
| ADI AR 2208 | <<locked>> | 80% | 34,548 psi | 77% | 2096 fps | 97.1% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 36,579 psi | 81% | 2241 fps | 97.5% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 33,852 psi | 75% | 2113 fps | 98.5% |
| Alliant Reloder-15 | <<locked>> | 80% | 36,477 psi | 81% | 2165 fps | 97.9% |
| Alliant Reloder-16 | <<locked>> | 86% | 31,807 psi | 71% | 2116 fps | 95.5% |
| Alliant Reloder-17 | 38.5 gr | 80% | 29,182 psi | 65% | 2083 fps | 96.3% |
| Alliant Reloder-23 | <<locked>> | 92% | 27,166 psi | 60% | 2037 fps | 95% |
| Alliant Reloder-26 | <<locked>> | 98% | 35,114 psi | 78% | 2280 fps | 95.9% |
| Bofors RP3 | <<locked>> | 80% | 33,199 psi | 74% | 2116 fps | 98.5% |
| Hodgdon H380 | <<locked>> | 80% | 34,229 psi | 76% | 2116 fps | 95.9% |
| Hodgdon Hybrid 100V | <<locked>> | 84% | 27,354 psi | 61% | 1991 fps | 95.5% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 34,664 psi | 77% | 2165 fps | 98.8% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,194 psi | 58% | 1266 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 36,506 psi | 81% | 2136 fps | 98.7% |
| IMR 3031 | <<locked>> | 80% | 36,869 psi | 82% | 2169 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 34,011 psi | 76% | 2077 fps | 97.2% |
| IMR 4831 | <<locked>> | 90% | 30,618 psi | 68% | 2087 fps | 95.3% |
| IMR 4895 | <<locked>> | 80% | 37,304 psi | 83% | 2192 fps | 98.6% |
| Lovex S062 | <<locked>> | 80% | 36,042 psi | 80% | 2126 fps | 99.2% |
| Lovex S065 | <<locked>> | 86% | 35,563 psi | 79% | 2119 fps | 95.2% |
| Norma 203B | <<locked>> | 80% | 35,839 psi | 80% | 2156 fps | 98.2% |
| Norma URP | <<locked>> | 86% | 31,444 psi | 70% | 2110 fps | 95.3% |
| Ramshot Big Game | <<locked>> | 80% | 35,201 psi | 78% | 2165 fps | 97.8% |
| Ramshot Hunter | <<locked>> | 92% | 37,391 psi | 83% | 2234 fps | 95.3% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 26,382 psi | 59% | 1296 fps | 100% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 37,724 psi | 84% | 2247 fps | 98.2% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 31,096 psi | 69% | 2142 fps | 99.2% |
| ReloadSwiss RS 62 | 42.3 gr | 88% | 32,706 psi | 73% | 2165 fps | 95.6% |
| ReloadSwiss RS 70 | <<locked>> | 90% | 35,723 psi | 79% | 2221 fps | 95.5% |
| Rottweil R 902 | <<locked>> | 80% | 37,971 psi | 84% | 2139 fps | 99.4% |
| Rottweil R 903 | <<locked>> | 80% | 31,256 psi | 70% | 2070 fps | 97.6% |
| Shooters World Long Rifle | <<locked>> | 86% | 35,563 psi | 79% | 2119 fps | 95.2% |
| Shooters World Precision | <<locked>> | 80% | 36,042 psi | 80% | 2126 fps | 99.2% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 32,300 psi | 72% | 2113 fps | 97.1% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 34,156 psi | 76% | 2031 fps | 100% |
| Somchem S355 | <<locked>> | 80% | 32,329 psi | 72% | 2077 fps | 97.7% |
| Somchem S365 | 37.4 gr | 82% | 24,845 psi | 55% | 1978 fps | 95.9% |
| Unknown powder | <<locked>> | 86% | 34,287 psi | 76% | 2156 fps | 95.6% |
| Vihtavuori N135 | <<locked>> | 80% | 37,043 psi | 82% | 2126 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 37,782 psi | 84% | 2133 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 30,632 psi | 68% | 2024 fps | 98.4% |
| Vihtavuori N160 | <<locked>> | 86% | 32,866 psi | 73% | 2110 fps | 95.7% |
| Vihtavuori N540 | <<locked>> | 80% | 36,274 psi | 81% | 2129 fps | 100% |
| Vihtavuori N550 | <<locked>> | 86% | 32,198 psi | 72% | 2113 fps | 95.4% |
| Vihtavuori N555 | <<locked>> | 92% | 28,587 psi | 64% | 2100 fps | 95.1% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 27,427 psi | 61% | 1962 fps | 95.5% |
| Winchester StaBALL HD | <<locked>> | 96% | 27,093 psi | 60% | 2093 fps | 95% |
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 49 powders for 7.7 x 58 mm Arisaka loaded with the .310 | 215gr | Rhino Solid Shank. Alliant Reloder-26 delivers the highest muzzle velocity at 2,333 fps; across all powders the maximum-charge window runs from 1,421 fps to 2,333 fps. Alliant Reloder-23 gives the best case fill at 100 %, and 49 of the 49 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (310 MPa), the top charges use 68–90 %, leaving at least 10 % headroom. The 215.0 gr projectile in 0.31" calls for a 1:12.5 twist; slower twists will usually not stabilise this weight. Alliant Reloder-23, Alliant Reloder-26, 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. Somchem S365, Alliant Reloder-17, ReloadSwiss RS 62 rank at the top here: for 7.7 x 58 mm Arisaka with the .310 | 215gr | Rhino Solid Shank 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.