Load Specifications
Load data in caliber 6.5 x 51 R Jap. Arisaka with .264 | 87gr | IBEX TRD bullet and 45 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are ReloadSwiss RS 60, IMR 3031 and Accurate 4064.
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 2015 | <<locked>> | 86% | 36,912 psi | 86% | 2986 fps | 99.9% |
| Accurate 2460 | <<locked>> | 84% | 37,362 psi | 87% | 3025 fps | 98.5% |
| Accurate 2495 | <<locked>> | 94% | 36,477 psi | 85% | 3054 fps | 100% |
| Accurate 2520 | <<locked>> | 88% | 38,130 psi | 89% | 3081 fps | 98.4% |
| Accurate 4064 | <<locked>> | 96% | 36,608 psi | 86% | 3081 fps | 99% |
| ADI Benchmark 8208 | <<locked>> | 86% | 36,593 psi | 86% | 2995 fps | 96.1% |
| Alliant AR-Comp | <<locked>> | 88% | 36,854 psi | 86% | 3074 fps | 100% |
| Alliant Reloder- TS 15.5 | <<locked>> | 96% | 38,159 psi | 89% | 3094 fps | 96.4% |
| Alliant Reloder-10x | <<locked>> | 82% | 37,608 psi | 88% | 3018 fps | 100% |
| Bofors RP3 | <<locked>> | 96% | 37,304 psi | 87% | 3091 fps | 96.3% |
| Hodgdon Benchmark | <<locked>> | 84% | 36,985 psi | 86% | 2956 fps | 96.8% |
| Hodgdon BL-C2 | <<locked>> | 88% | 36,593 psi | 86% | 3064 fps | 97% |
| Hodgdon H322 | <<locked>> | 82% | 36,535 psi | 85% | 3025 fps | 99.2% |
| Hodgdon H335 | <<locked>> | 82% | 37,304 psi | 87% | 3045 fps | 98.6% |
| Hodgdon LEVERevolution | <<locked>> | 92% | 37,971 psi | 89% | 3117 fps | 96.2% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 32,111 psi | 75% | 2001 fps | 100% |
| IMR 3031 | <<locked>> | 90% | 37,449 psi | 88% | 3117 fps | 99.8% |
| IMR 8208 XBR | <<locked>> | 86% | 36,593 psi | 86% | 2995 fps | 96.1% |
| Lovex D073.5 | <<locked>> | 84% | 37,420 psi | 87% | 3025 fps | 97.5% |
| Lovex D073.6 | <<locked>> | 90% | 36,332 psi | 85% | 3054 fps | 98% |
| Lovex S062 | <<locked>> | 94% | 38,508 psi | 90% | 3064 fps | 96.9% |
| Norma 201 | <<locked>> | 90% | 37,507 psi | 88% | 3028 fps | 96.6% |
| Norma 202 | <<locked>> | 90% | 38,000 psi | 89% | 3061 fps | 98.8% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 31,966 psi | 75% | 2047 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 82% | 36,318 psi | 85% | 2995 fps | 97.5% |
| ReloadSwiss RS 60 | <<locked>> | 96% | 36,796 psi | 86% | 3130 fps | 97.4% |
| Rottweil R 901 | <<locked>> | 88% | 38,130 psi | 89% | 3035 fps | 98.6% |
| Rottweil R 902 | <<locked>> | 92% | 37,942 psi | 89% | 3028 fps | 96.6% |
| Rottweil R 903 | <<locked>> | 98% | 36,883 psi | 86% | 3068 fps | 95.8% |
| Shooters World Match Rifle | <<locked>> | 90% | 36,332 psi | 85% | 3054 fps | 98% |
| Shooters World Precision | <<locked>> | 94% | 38,508 psi | 90% | 3064 fps | 96.9% |
| SNPE Vectan SP 3 | <<locked>> | 82% | 38,595 psi | 90% | 3031 fps | 99.8% |
| SNPE Vectan Tubal 3000 | <<locked>> | 88% | 38,043 psi | 89% | 2963 fps | 98.6% |
| SNPE Vectan Tubal 5000 | <<locked>> | 94% | 37,579 psi | 88% | 2963 fps | 99.3% |
| Somchem S321 | <<locked>> | 84% | 36,608 psi | 86% | 3025 fps | 96.5% |
| Somchem S335 | <<locked>> | 88% | 37,072 psi | 87% | 2963 fps | 99.1% |
| Somchem S355 | <<locked>> | 98% | 38,696 psi | 90% | 3091 fps | 96% |
| Vihtavuori N130 | <<locked>> | 84% | 38,450 psi | 90% | 2969 fps | 100% |
| Vihtavuori N133 | <<locked>> | 88% | 37,985 psi | 89% | 2972 fps | 99.9% |
| Vihtavuori N135 | <<locked>> | 92% | 36,274 psi | 85% | 3028 fps | 99.9% |
| Vihtavuori N140 | <<locked>> | 92% | 38,653 psi | 90% | 3045 fps | 99.2% |
| Vihtavuori N150 | <<locked>> | 98% | 37,260 psi | 87% | 3025 fps | 97.1% |
| Vihtavuori N530 | <<locked>> | 86% | 36,492 psi | 85% | 2992 fps | 96.2% |
| Vihtavuori N540 | <<locked>> | 92% | 37,188 psi | 87% | 3031 fps | 98.6% |
| Winchester 748 | <<locked>> | 88% | 37,594 psi | 88% | 3091 fps | 97.5% |
Recommended = one of the top powders for this cartridge and bullet combination.
Start Load - Barrel Length: 31"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2015 | <<locked>> | 80% | 29,718 psi | 69% | 2808 fps | 98.9% |
| Accurate 2460 | <<locked>> | 80% | 32,213 psi | 75% | 2897 fps | 97.2% |
| Accurate 2495 | <<locked>> | 80% | 21,016 psi | 49% | 2608 fps | 96% |
| Accurate 2520 | <<locked>> | 80% | 27,905 psi | 65% | 2815 fps | 95.1% |
| Accurate 4064 | 33 gr | 86% | 25,324 psi | 59% | 2769 fps | 95.4% |
| ADI Benchmark 8208 | <<locked>> | 84% | 34,389 psi | 80% | 2940 fps | 95.3% |
| Alliant AR-Comp | <<locked>> | 80% | 27,673 psi | 65% | 2841 fps | 99.9% |
| Alliant Reloder- TS 15.5 | <<locked>> | 94% | 35,824 psi | 84% | 3038 fps | 95.7% |
| Alliant Reloder-10x | <<locked>> | 80% | 34,911 psi | 82% | 2956 fps | 100% |
| Bofors RP3 | <<locked>> | 94% | 34,563 psi | 81% | 3025 fps | 95.4% |
| Hodgdon Benchmark | <<locked>> | 80% | 32,198 psi | 75% | 2835 fps | 95.1% |
| Hodgdon BL-C2 | <<locked>> | 84% | 31,314 psi | 73% | 2930 fps | 95.1% |
| Hodgdon H322 | <<locked>> | 80% | 34,243 psi | 80% | 2969 fps | 98.7% |
| Hodgdon H335 | <<locked>> | 80% | 34,418 psi | 80% | 2972 fps | 98% |
| Hodgdon LEVERevolution | <<locked>> | 90% | 35,447 psi | 83% | 3051 fps | 95.3% |
| Hodgdon TrailBoss | <<locked>> | 80% | 23,438 psi | 55% | 1791 fps | 100% |
| IMR 3031 | 30.3 gr | 80% | 26,165 psi | 61% | 2802 fps | 97% |
| IMR 8208 XBR | <<locked>> | 84% | 34,389 psi | 80% | 2940 fps | 95.3% |
| Lovex D073.5 | <<locked>> | 80% | 31,995 psi | 75% | 2890 fps | 95.7% |
| Lovex D073.6 | <<locked>> | 84% | 28,935 psi | 68% | 2861 fps | 95.5% |
| Lovex S062 | <<locked>> | 90% | 33,330 psi | 78% | 2936 fps | 95.2% |
| Norma 201 | <<locked>> | 88% | 35,201 psi | 82% | 2972 fps | 95.8% |
| Norma 202 | <<locked>> | 80% | 26,745 psi | 63% | 2759 fps | 95.2% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 23,119 psi | 54% | 1831 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 33,823 psi | 79% | 2930 fps | 96.7% |
| ReloadSwiss RS 60 | 37.9 gr | 92% | 32,082 psi | 75% | 2989 fps | 95.3% |
| Rottweil R 901 | <<locked>> | 80% | 28,993 psi | 68% | 2795 fps | 95.9% |
| Rottweil R 902 | <<locked>> | 88% | 33,127 psi | 77% | 2907 fps | 95% |
| Rottweil R 903 | <<locked>> | 96% | 34,519 psi | 81% | 3012 fps | 95% |
| Shooters World Match Rifle | <<locked>> | 84% | 28,935 psi | 68% | 2861 fps | 95.5% |
| Shooters World Precision | <<locked>> | 90% | 33,330 psi | 78% | 2936 fps | 95.2% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 36,158 psi | 85% | 2976 fps | 99.5% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 29,066 psi | 68% | 2733 fps | 96.1% |
| SNPE Vectan Tubal 5000 | <<locked>> | 82% | 24,801 psi | 58% | 2618 fps | 95.4% |
| Somchem S321 | <<locked>> | 82% | 33,765 psi | 79% | 2953 fps | 95.6% |
| Somchem S335 | <<locked>> | 80% | 28,079 psi | 66% | 2730 fps | 96.7% |
| Somchem S355 | <<locked>> | 96% | 35,984 psi | 84% | 3028 fps | 95.1% |
| Vihtavuori N130 | <<locked>> | 80% | 33,547 psi | 78% | 2861 fps | 99.8% |
| Vihtavuori N133 | <<locked>> | 80% | 29,095 psi | 68% | 2753 fps | 98.6% |
| Vihtavuori N135 | <<locked>> | 80% | 23,656 psi | 55% | 2677 fps | 97% |
| Vihtavuori N140 | <<locked>> | 82% | 27,122 psi | 63% | 2743 fps | 95.8% |
| Vihtavuori N150 | <<locked>> | 94% | 32,460 psi | 76% | 2907 fps | 95.5% |
| Vihtavuori N530 | <<locked>> | 84% | 33,924 psi | 79% | 2927 fps | 95.3% |
| Vihtavuori N540 | <<locked>> | 84% | 27,934 psi | 65% | 2785 fps | 95.6% |
| Winchester 748 | <<locked>> | 84% | 32,619 psi | 76% | 2959 fps | 95.8% |
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 45 powders for 6.5 x 51 R Jap. Arisaka loaded with the .264 | 87gr | IBEX TRD. ReloadSwiss RS 60 delivers the highest muzzle velocity at 3,130 fps; across all powders the maximum-charge window runs from 2,001 fps to 3,130 fps. Hodgdon TrailBoss gives the best case fill at 100 %, and 45 of the 45 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (295 MPa), the top charges use 75–90 %, leaving at least 10 % headroom. The 87.0 gr projectile in 0.264" calls for a 1:11.5 twist; slower twists will usually not stabilise this weight. Hodgdon TrailBoss, ReloadSwiss RS 14 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, IMR 3031, Accurate 4064 rank at the top here: for 6.5 x 51 R Jap. Arisaka with the .264 | 87gr | IBEX TRD 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.