Load Specifications
Load data in caliber 6.5 x 51 R Jap. Arisaka with .264 | 120gr | RWS HIT bullet and 50 powders. The key underlying parameters are shown in the table above.
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: 31"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2495 | <<locked>> | 84% | 36,085 psi | 84% | 2621 fps | 100% |
| Accurate 4064 | <<locked>> | 86% | 36,840 psi | 86% | 2671 fps | 100% |
| Accurate 4350 | <<locked>> | 94% | 36,738 psi | 86% | 2733 fps | 97.9% |
| ADI AR 2208 | <<locked>> | 84% | 36,608 psi | 86% | 2625 fps | 98% |
| Alliant Power Pro 2000-MR | <<locked>> | 82% | 36,709 psi | 86% | 2756 fps | 98% |
| Alliant Reloder- TS 15.5 | <<locked>> | 86% | 37,753 psi | 88% | 2690 fps | 99.4% |
| Alliant Reloder-15 | <<locked>> | 84% | 38,363 psi | 90% | 2707 fps | 98.6% |
| Alliant Reloder-16 | <<locked>> | 94% | 38,203 psi | 89% | 2766 fps | 98.3% |
| Alliant Reloder-17 | <<locked>> | 90% | 37,739 psi | 88% | 2789 fps | 99.4% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 31,502 psi | 74% | 2638 fps | 97.8% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 35,070 psi | 82% | 2789 fps | 96.8% |
| Bofors RP3 | <<locked>> | 86% | 36,811 psi | 86% | 2687 fps | 99.4% |
| Hodgdon H380 | <<locked>> | 86% | 38,551 psi | 90% | 2703 fps | 97.6% |
| Hodgdon Hybrid 100V | <<locked>> | 96% | 36,782 psi | 86% | 2694 fps | 99.1% |
| Hodgdon LEVERevolution | <<locked>> | 82% | 36,637 psi | 86% | 2703 fps | 99.4% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 34,026 psi | 80% | 1749 fps | 100% |
| IMR 4064 | <<locked>> | 84% | 38,392 psi | 90% | 2657 fps | 98.6% |
| IMR 4831 | <<locked>> | 96% | 38,348 psi | 90% | 2743 fps | 98.2% |
| IMR 4895 | <<locked>> | 82% | 36,680 psi | 86% | 2684 fps | 98.7% |
| Lovex D073.6 | <<locked>> | 82% | 38,232 psi | 89% | 2687 fps | 100% |
| Lovex S062 | <<locked>> | 84% | 37,507 psi | 88% | 2651 fps | 99.6% |
| Lovex S065 | <<locked>> | 90% | 36,796 psi | 86% | 2638 fps | 96.2% |
| Norma 203B | <<locked>> | 84% | 37,637 psi | 88% | 2694 fps | 98.9% |
| Norma URP | <<locked>> | 94% | 37,637 psi | 88% | 2743 fps | 97.9% |
| Ramshot Big Game | <<locked>> | 84% | 37,507 psi | 88% | 2710 fps | 98.7% |
| Ramshot Hunter | <<locked>> | 94% | 37,246 psi | 87% | 2733 fps | 95.9% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 34,185 psi | 80% | 1791 fps | 100% |
| ReloadSwiss RS 52 | <<locked>> | 82% | 37,594 psi | 88% | 2756 fps | 98.5% |
| ReloadSwiss RS 60 | <<locked>> | 88% | 37,884 psi | 89% | 2802 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 94% | 37,115 psi | 87% | 2762 fps | 97.6% |
| ReloadSwiss RS 70 | <<locked>> | 94% | 38,435 psi | 90% | 2789 fps | 97.2% |
| Rottweil R 902 | <<locked>> | 82% | 36,564 psi | 85% | 2612 fps | 99.4% |
| Rottweil R 903 | <<locked>> | 88% | 36,738 psi | 86% | 2677 fps | 99.2% |
| Shooters World Long Rifle | <<locked>> | 90% | 36,796 psi | 86% | 2638 fps | 96.2% |
| Shooters World Match Rifle | <<locked>> | 82% | 38,232 psi | 89% | 2687 fps | 100% |
| Shooters World Precision | <<locked>> | 84% | 37,507 psi | 88% | 2651 fps | 99.6% |
| SNPE Vectan SP 11 | <<locked>> | 86% | 36,376 psi | 85% | 2694 fps | 98.6% |
| SNPE Vectan Tubal 5000 | <<locked>> | 86% | 38,493 psi | 90% | 2585 fps | 100% |
| Somchem S355 | <<locked>> | 88% | 38,029 psi | 89% | 2690 fps | 99.3% |
| Somchem S365 | <<locked>> | 98% | 38,348 psi | 90% | 2802 fps | 100% |
| Vihtavuori N135 | <<locked>> | 84% | 38,551 psi | 90% | 2644 fps | 100% |
| Vihtavuori N140 | <<locked>> | 82% | 37,275 psi | 87% | 2612 fps | 100% |
| Vihtavuori N150 | <<locked>> | 88% | 36,492 psi | 85% | 2625 fps | 99.7% |
| Vihtavuori N160 | <<locked>> | 92% | 37,072 psi | 87% | 2687 fps | 97.6% |
| Vihtavuori N540 | <<locked>> | 84% | 38,203 psi | 89% | 2654 fps | 100% |
| Vihtavuori N550 | <<locked>> | 92% | 36,347 psi | 85% | 2694 fps | 97.3% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 33,388 psi | 78% | 2710 fps | 97.7% |
| Winchester 6.5 StaBALL | <<locked>> | 92% | 37,985 psi | 89% | 2677 fps | 99.4% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 27,557 psi | 64% | 2598 fps | 96.7% |
| Winchester StaBALL Match | <<locked>> | 82% | 38,203 psi | 89% | 2694 fps | 99.3% |
Start Load - Barrel Length: 31"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2495 | <<locked>> | 80% | 31,212 psi | 73% | 2520 fps | 100% |
| Accurate 4064 | <<locked>> | 80% | 29,733 psi | 69% | 2513 fps | 99.8% |
| Accurate 4350 | <<locked>> | 88% | 28,834 psi | 67% | 2546 fps | 95.2% |
| ADI AR 2208 | <<locked>> | 80% | 31,879 psi | 75% | 2513 fps | 96.6% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 33,997 psi | 79% | 2690 fps | 97.2% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 30,516 psi | 71% | 2523 fps | 97.9% |
| Alliant Reloder-15 | <<locked>> | 80% | 33,359 psi | 78% | 2595 fps | 97.4% |
| Alliant Reloder-16 | <<locked>> | 88% | 31,198 psi | 73% | 2592 fps | 95.9% |
| Alliant Reloder-17 | <<locked>> | 80% | 26,310 psi | 61% | 2480 fps | 95.4% |
| Alliant Reloder-23 | <<locked>> | 96% | 27,499 psi | 64% | 2523 fps | 96% |
| Alliant Reloder-26 | <<locked>> | 98% | 32,387 psi | 76% | 2717 fps | 95.7% |
| Bofors RP3 | <<locked>> | 80% | 29,225 psi | 68% | 2510 fps | 97.7% |
| Hodgdon H380 | <<locked>> | 80% | 30,879 psi | 72% | 2526 fps | 95.1% |
| Hodgdon Hybrid 100V | <<locked>> | 86% | 26,049 psi | 61% | 2418 fps | 95.5% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 33,881 psi | 79% | 2641 fps | 98.9% |
| Hodgdon TrailBoss | <<locked>> | 80% | 25,048 psi | 59% | 1565 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 33,359 psi | 78% | 2546 fps | 97.4% |
| IMR 4831 | <<locked>> | 88% | 28,732 psi | 67% | 2516 fps | 95.1% |
| IMR 4895 | <<locked>> | 80% | 34,185 psi | 80% | 2625 fps | 98.2% |
| Lovex D073.6 | <<locked>> | 80% | 35,563 psi | 83% | 2635 fps | 99.9% |
| Lovex S062 | <<locked>> | 80% | 32,561 psi | 76% | 2543 fps | 98.8% |
| Lovex S065 | <<locked>> | 88% | 34,374 psi | 80% | 2582 fps | 95.4% |
| Norma 203B | <<locked>> | 80% | 32,706 psi | 76% | 2582 fps | 97.7% |
| Norma URP | <<locked>> | 88% | 30,472 psi | 71% | 2569 fps | 95.5% |
| Ramshot Big Game | <<locked>> | 80% | 32,401 psi | 76% | 2595 fps | 97.4% |
| Ramshot Hunter | <<locked>> | 92% | 34,838 psi | 81% | 2674 fps | 95% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 24,961 psi | 58% | 1598 fps | 100% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 34,635 psi | 81% | 2690 fps | 97.8% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 28,297 psi | 66% | 2556 fps | 98.8% |
| ReloadSwiss RS 62 | <<locked>> | 90% | 31,966 psi | 75% | 2641 fps | 95.9% |
| ReloadSwiss RS 70 | <<locked>> | 90% | 33,040 psi | 77% | 2654 fps | 95.2% |
| Rottweil R 902 | <<locked>> | 80% | 34,069 psi | 80% | 2559 fps | 99% |
| Rottweil R 903 | <<locked>> | 80% | 27,296 psi | 64% | 2451 fps | 96.7% |
| Shooters World Long Rifle | <<locked>> | 88% | 34,374 psi | 80% | 2582 fps | 95.4% |
| Shooters World Match Rifle | <<locked>> | 80% | 35,563 psi | 83% | 2635 fps | 99.9% |
| Shooters World Precision | <<locked>> | 80% | 32,561 psi | 76% | 2543 fps | 98.8% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 29,327 psi | 69% | 2520 fps | 96.4% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 31,314 psi | 73% | 2441 fps | 100% |
| Somchem S355 | <<locked>> | 80% | 28,848 psi | 67% | 2474 fps | 97% |
| Somchem S365 | <<locked>> | 84% | 23,148 psi | 54% | 2388 fps | 95.5% |
| Vihtavuori N135 | <<locked>> | 80% | 33,562 psi | 78% | 2549 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 34,737 psi | 81% | 2562 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 27,311 psi | 64% | 2411 fps | 97.8% |
| Vihtavuori N160 | <<locked>> | 86% | 30,037 psi | 70% | 2520 fps | 95.1% |
| Vihtavuori N540 | <<locked>> | 80% | 33,286 psi | 78% | 2552 fps | 99.9% |
| Vihtavuori N550 | <<locked>> | 88% | 31,328 psi | 73% | 2575 fps | 95.6% |
| Vihtavuori N555 | <<locked>> | 96% | 28,863 psi | 67% | 2592 fps | 96% |
| Winchester 6.5 StaBALL | <<locked>> | 82% | 26,426 psi | 62% | 2388 fps | 95.7% |
| Winchester StaBALL HD | <<locked>> | 98% | 25,744 psi | 60% | 2533 fps | 95.3% |
| Winchester StaBALL Match | <<locked>> | 80% | 35,331 psi | 83% | 2635 fps | 98.8% |
ᴾ possible press load - work up slowly to this load while watching for signs of excessive pressure.
This overview compares 73 powders for 6.5 x 51 R Jap. Arisaka loaded with the .264 | 120gr | RWS HIT. ReloadSwiss RS 60 delivers the highest muzzle velocity at 2,802 fps; across all powders the maximum-charge window runs from 1,749 fps to 2,802 fps. Accurate 3100 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 (295 MPa), the top charges use 64–90 %, leaving at least 10 % headroom. The 120.0 gr projectile in 0.264" calls for a 1:13.0 twist; slower twists will usually not stabilise this weight. Accurate 3100, Alliant Reloder-23, Alliant Reloder-26 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. As outliers, Accurate 2700, Accurate 3100, ADI AR 2209 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.