Load Specifications
Load data in caliber 6.5 x 50 R with .264 | 87gr | IBEX Viper bullet and 31 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are ADI AR 2219, Hodgdon H322 and Alliant Reloder-10x.
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: 23.6"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 1680 | <<locked>> | 84% | 46,035 psi | 87% | 2749 fps | 99.2% |
| Accurate 2015 | <<locked>> | 98% | 45,542 psi | 86% | 2825 fps | 98.5% |
| Accurate 2460 | <<locked>> | 96% | 47,282 psi | 89% | 2867 fps | 95.9% |
| Accurate 2495ᴾ | <<locked>> | 100% | 37,333 psi | 71% | 2743 fps | 97.2% |
| Accurate LT-30 | <<locked>> | 90% | 46,615 psi | 88% | 2749 fps | 97.4% |
| ADI AR 2207 | <<locked>> | 88% | 45,963 psi | 87% | 2822 fps | 100% |
| ADI AR 2219 | <<locked>> | 92% | 46,818 psi | 88% | 2887 fps | 97.2% |
| Alliant AR-Compᴾ | <<locked>> | 100% | 44,425 psi | 84% | 2897 fps | 99.9% |
| Alliant Reloder-10x | <<locked>> | 94% | 46,253 psi | 87% | 2861 fps | 99.4% |
| Alliant Reloder-7 | <<locked>> | 88% | 47,819 psi | 90% | 2822 fps | 99.7% |
| Baschieri & Pellagri 106 | <<locked>> | 92% | 47,239 psi | 89% | 2779 fps | 97.8% |
| Hodgdon H322 | <<locked>> | 96% | 47,892 psi | 90% | 2907 fps | 97.4% |
| Hodgdon H335 | <<locked>> | 94% | 46,180 psi | 87% | 2874 fps | 95.9% |
| Hodgdon H4198 | <<locked>> | 86% | 45,832 psi | 87% | 2749 fps | 96.6% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 32,416 psi | 61% | 1772 fps | 100% |
| IMR 3031ᴾ | <<locked>> | 100% | 42,090 psi | 80% | 2858 fps | 97% |
| IMR 4198 | <<locked>> | 94% | 47,718 psi | 90% | 2841 fps | 99.9% |
| IMR 4227 | <<locked>> | 82% | 46,050 psi | 87% | 2743 fps | 100% |
| Lovex S053 | <<locked>> | 84% | 47,485 psi | 90% | 2740 fps | 100% |
| Norma 200 | <<locked>> | 90% | 47,108 psi | 89% | 2851 fps | 99.8% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 31,952 psi | 60% | 1804 fps | 100% |
| ReloadSwiss RS 36 | <<locked>> | 82% | 45,759 psi | 86% | 2776 fps | 100% |
| SNPE Vectan BA6 1/2 | <<locked>> | 86% | 46,151 psi | 87% | 2569 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 92% | 46,920 psi | 89% | 2884 fps | 96.1% |
| SNPE Vectan SP 3 | <<locked>> | 94% | 46,441 psi | 88% | 2851 fps | 98% |
| SNPE Vectan Tubal 3000ᴾ | <<locked>> | 100% | 46,905 psi | 89% | 2785 fps | 96% |
| Somchem S335ᴾ | <<locked>> | 100% | 45,469 psi | 86% | 2789 fps | 96.8% |
| Vihtavuori N120 | <<locked>> | 88% | 46,006 psi | 87% | 2776 fps | 100% |
| Vihtavuori N130 | <<locked>> | 96% | 46,978 psi | 89% | 2805 fps | 99.3% |
| Vihtavuori N133ᴾ | <<locked>> | 100% | 45,658 psi | 86% | 2792 fps | 98.4% |
| Vihtavuori N135ᴾ | <<locked>> | 100% | 38,276 psi | 72% | 2740 fps | 97.2% |
Recommended = one of the top powders for this cartridge and bullet combination.
Start Load - Barrel Length: 23.6"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 1680 | <<locked>> | 80% | 40,814 psi | 77% | 2651 fps | 98.5% |
| Accurate 2015 | <<locked>> | 86% | 32,184 psi | 61% | 2536 fps | 95% |
| Accurate 2460 | <<locked>> | 94% | 44,034 psi | 83% | 2808 fps | 95.1% |
| Accurate 2495 | <<locked>> | 94% | 31,241 psi | 59% | 2598 fps | 95.2% |
| Accurate LT-30 | <<locked>> | 84% | 39,305 psi | 74% | 2605 fps | 95.6% |
| ADI AR 2207 | <<locked>> | 80% | 36,492 psi | 69% | 2638 fps | 99.9% |
| ADI AR 2219 | 26.2 gr | 86% | 38,653 psi | 73% | 2720 fps | 95% |
| Alliant AR-Comp | <<locked>> | 84% | 28,007 psi | 53% | 2487 fps | 95.7% |
| Alliant Reloder-10x | 22.3 gr | 80% | 30,922 psi | 58% | 2520 fps | 95.9% |
| Alliant Reloder-7 | <<locked>> | 80% | 38,319 psi | 72% | 2635 fps | 98.4% |
| Baschieri & Pellagri 106 | <<locked>> | 84% | 37,289 psi | 70% | 2585 fps | 95.3% |
| Hodgdon H322 | 26.5 gr | 90% | 39,813 psi | 75% | 2746 fps | 95.4% |
| Hodgdon H335 | <<locked>> | 92% | 43,062 psi | 81% | 2815 fps | 95.1% |
| Hodgdon H4198 | <<locked>> | 82% | 40,538 psi | 77% | 2644 fps | 95.2% |
| Hodgdon TrailBoss | <<locked>> | 80% | 24,105 psi | 46% | 1585 fps | 100% |
| IMR 3031 | <<locked>> | 96% | 37,608 psi | 71% | 2756 fps | 95.6% |
| IMR 4198 | <<locked>> | 80% | 32,677 psi | 62% | 2516 fps | 97.4% |
| IMR 4227 | <<locked>> | 80% | 43,149 psi | 82% | 2690 fps | 99.9% |
| Lovex S053 | <<locked>> | 80% | 42,786 psi | 81% | 2661 fps | 100% |
| Norma 200 | <<locked>> | 80% | 35,259 psi | 67% | 2608 fps | 98% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 23,830 psi | 45% | 1617 fps | 100% |
| ReloadSwiss RS 36 | <<locked>> | 80% | 43,033 psi | 81% | 2726 fps | 99.9% |
| SNPE Vectan BA6 1/2 | <<locked>> | 80% | 39,929 psi | 75% | 2467 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 90% | 44,164 psi | 83% | 2831 fps | 95.4% |
| SNPE Vectan SP 3 | <<locked>> | 84% | 35,186 psi | 66% | 2612 fps | 95% |
| SNPE Vectan Tubal 3000 | <<locked>> | 98% | 44,570 psi | 84% | 2740 fps | 95.4% |
| Somchem S335 | <<locked>> | 96% | 40,393 psi | 76% | 2690 fps | 95.4% |
| Vihtavuori N120 | <<locked>> | 80% | 36,550 psi | 69% | 2602 fps | 100% |
| Vihtavuori N130 | <<locked>> | 80% | 29,834 psi | 56% | 2431 fps | 95% |
| Vihtavuori N133 | <<locked>> | 90% | 34,476 psi | 65% | 2559 fps | 95.5% |
| Vihtavuori N135 | <<locked>> | 94% | 32,242 psi | 61% | 2589 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 31 powders for 6.5 x 50 R loaded with the .264 | 87gr | IBEX Viper. Hodgdon H322 delivers the highest muzzle velocity at 2,907 fps; across all powders the maximum-charge window runs from 1,772 fps to 2,907 fps. Accurate 2495 gives the best case fill at 100 %, and 31 of the 31 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (365 MPa), the top charges use 60–90 %, leaving at least 10 % headroom. The 87.0 gr projectile in 0.264" calls for a 1:9.5 twist; slower twists will usually not stabilise this weight. Accurate 2495, Alliant AR-Comp, 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. ADI AR 2219, Hodgdon H322, Alliant Reloder-10x rank at the top here: for 6.5 x 50 R with the .264 | 87gr | IBEX Viper 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.