Load Specifications
Load data in caliber 6.5-300 Weatherby Mag. with .264 | 100gr | Peregrine VLR-4 bullet and 69 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Hodgdon Retumbo, ReloadSwiss RS 76 and Vihtavuori N560.
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: 24"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 3100 | <<locked>> | 90% | 54,926 psi | 85% | 3320 fps | 99.9% |
| Accurate 4350 | <<locked>> | 82% | 55,216 psi | 85% | 3360 fps | 100% |
| Accurate High Country | <<locked>> | 88% | 56,797 psi | 87% | 3481 fps | 98.4% |
| Accurate MAGPRO | <<locked>> | 90% | 58,204 psi | 90% | 3491 fps | 97.7% |
| ADI AR 2209 | <<locked>> | 88% | 56,594 psi | 87% | 3422 fps | 99.1% |
| ADI AR 2213 | <<locked>> | 90% | 54,882 psi | 84% | 3425 fps | 98% |
| ADI AR 2217ᴾ | <<locked>> | 100% | 57,305 psi | 88% | 3455 fps | 98.9% |
| ADI AR 2225ᴾ | <<locked>> | 100% | 51,706 psi | 80% | 3396 fps | 99.8% |
| Alliant Power Pro Varmint | <<locked>> | 88% | 56,753 psi | 87% | 3419 fps | 99.1% |
| Alliant Reloder-16 | <<locked>> | 84% | 56,550 psi | 87% | 3428 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 88% | 56,115 psi | 86% | 3409 fps | 99% |
| Alliant Reloder-22 | <<locked>> | 90% | 55,158 psi | 85% | 3415 fps | 99% |
| Alliant Reloder-23 | <<locked>> | 92% | 56,826 psi | 87% | 3399 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 96% | 57,029 psi | 88% | 3461 fps | 100% |
| Alliant Reloder-26 | <<locked>> | 88% | 57,653 psi | 89% | 3488 fps | 100% |
| Bofors RP15 | <<locked>> | 94% | 58,160 psi | 90% | 3471 fps | 99.3% |
| Bofors RP30 | <<locked>> | 98% | 56,840 psi | 87% | 3461 fps | 98.8% |
| Bofors RP5 | <<locked>> | 90% | 55,158 psi | 85% | 3415 fps | 99% |
| Bofors RP7 | <<locked>> | 82% | 56,840 psi | 87% | 3366 fps | 99.6% |
| Hodgdon H1000 | <<locked>> | 96% | 54,868 psi | 84% | 3412 fps | 98.9% |
| Hodgdon H414 | <<locked>> | 82% | 56,884 psi | 88% | 3419 fps | 99.8% |
| Hodgdon H4831 | <<locked>> | 90% | 58,218 psi | 90% | 3422 fps | 98% |
| Hodgdon H4831 SC | <<locked>> | 90% | 57,058 psi | 88% | 3402 fps | 97.8% |
| Hodgdon Hybrid 100V | <<locked>> | 86% | 56,681 psi | 87% | 3343 fps | 100% |
| Hodgdon Retumbo | <<locked>> | 96% | 55,883 psi | 86% | 3543 fps | 99.7% |
| Hodgdon Superformance | <<locked>> | 82% | 58,305 psi | 90% | 3458 fps | 99.8% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 37,217 psi | 57% | 2247 fps | 100% |
| IMR 4350 | <<locked>> | 84% | 55,434 psi | 85% | 3346 fps | 99.5% |
| IMR 4451 Enduron | <<locked>> | 82% | 58,189 psi | 90% | 3389 fps | 99.8% |
| IMR 4831 | <<locked>> | 84% | 55,622 psi | 86% | 3350 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 90% | 58,566 psi | 90% | 3406 fps | 98.3% |
| IMR 7828 SSC | <<locked>> | 92% | 56,942 psi | 88% | 3468 fps | 98.4% |
| IMR 8133 Enduronᴾ | <<locked>> | 100% | 47,036 psi | 72% | 3271 fps | 96.5% |
| Lovex S065 | <<locked>> | 82% | 55,390 psi | 85% | 3327 fps | 100% |
| Lovex S070 | <<locked>> | 84% | 57,464 psi | 88% | 3379 fps | 99.9% |
| Lovex S071 | <<locked>> | 96% | 56,260 psi | 87% | 3343 fps | 100% |
| Norma 204 | <<locked>> | 84% | 56,826 psi | 87% | 3409 fps | 99% |
| Norma 217ᴾ | <<locked>> | 100% | 47,790 psi | 74% | 3307 fps | 98.7% |
| Norma MRP | <<locked>> | 88% | 55,100 psi | 85% | 3435 fps | 99.7% |
| Norma URP | <<locked>> | 84% | 57,348 psi | 88% | 3402 fps | 100% |
| Ramshot Grand | <<locked>> | 92% | 58,247 psi | 90% | 3497 fps | 98.9% |
| Ramshot Hunter | <<locked>> | 84% | 56,608 psi | 87% | 3406 fps | 100% |
| Ramshot Magnum | <<locked>> | 94% | 56,956 psi | 88% | 3415 fps | 99.7% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 38,130 psi | 59% | 2300 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 82% | 55,724 psi | 86% | 3383 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 84% | 58,494 psi | 90% | 3478 fps | 100% |
| ReloadSwiss RS 76 | <<locked>> | 96% | 57,217 psi | 88% | 3533 fps | 100% |
| ReloadSwiss RS 80 | <<locked>> | 98% | 56,623 psi | 87% | 3471 fps | 97.6% |
| Rottweil R 904 | <<locked>> | 88% | 57,421 psi | 88% | 3392 fps | 98.5% |
| Rottweil R 905 | <<locked>> | 88% | 55,811 psi | 86% | 3399 fps | 99.1% |
| Rottweil R 907 | <<locked>> | 82% | 56,840 psi | 87% | 3366 fps | 99.6% |
| Shooters World Long Rifle | <<locked>> | 82% | 55,390 psi | 85% | 3327 fps | 100% |
| Shooters World SW4350 | <<locked>> | 84% | 57,464 psi | 88% | 3379 fps | 99.9% |
| SNPE Vectan Tubal 7000 | <<locked>> | 84% | 58,421 psi | 90% | 3337 fps | 99.9% |
| SNPE Vectan Tubal 8000 | <<locked>> | 88% | 55,390 psi | 85% | 3396 fps | 99% |
| Somchem S361 | <<locked>> | 86% | 55,434 psi | 85% | 3310 fps | 97.6% |
| Somchem S365 | <<locked>> | 86% | 58,653 psi | 90% | 3406 fps | 100% |
| Somchem S385 | <<locked>> | 88% | 56,217 psi | 87% | 3366 fps | 99.6% |
| Vihtavuori N160 | <<locked>> | 82% | 55,303 psi | 85% | 3333 fps | 100% |
| Vihtavuori N165 | <<locked>> | 92% | 56,202 psi | 86% | 3346 fps | 99.4% |
| Vihtavuori N550 | <<locked>> | 84% | 58,421 psi | 90% | 3399 fps | 100% |
| Vihtavuori N555 | <<locked>> | 90% | 58,653 psi | 90% | 3428 fps | 100% |
| Vihtavuori N560 | <<locked>> | 88% | 54,723 psi | 84% | 3428 fps | 97.5% |
| Vihtavuori N565 | <<locked>> | 94% | 55,390 psi | 85% | 3409 fps | 97.9% |
| Vihtavuori N568 | <<locked>> | 98% | 57,101 psi | 88% | 3481 fps | 97.1% |
| Winchester 6.5 StaBALL | <<locked>> | 82% | 55,187 psi | 85% | 3281 fps | 100% |
| Winchester 760 | <<locked>> | 82% | 57,116 psi | 88% | 3422 fps | 99.8% |
| Winchester StaBALL HD | <<locked>> | 92% | 56,362 psi | 87% | 3478 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 90% | 56,217 psi | 87% | 3360 fps | 99.1% |
Recommended = one of the top powders for this cartridge and bullet combination.
Start Load - Barrel Length: 24"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 3100 | <<locked>> | 80% | 38,551 psi | 59% | 2976 fps | 97.3% |
| Accurate 4350 | <<locked>> | 80% | 51,459 psi | 79% | 3291 fps | 100% |
| Accurate High Country | <<locked>> | 82% | 45,788 psi | 70% | 3248 fps | 95.7% |
| Accurate MAGPRO | <<locked>> | 86% | 50,183 psi | 77% | 3330 fps | 95.7% |
| ADI AR 2209 | <<locked>> | 80% | 42,888 psi | 66% | 3136 fps | 96% |
| ADI AR 2213 | <<locked>> | 84% | 44,222 psi | 68% | 3192 fps | 95.1% |
| ADI AR 2217 | <<locked>> | 92% | 43,018 psi | 66% | 3150 fps | 95.1% |
| ADI AR 2225 | <<locked>> | 90% | 36,361 psi | 56% | 3015 fps | 95.7% |
| Alliant Power Pro Varmint | <<locked>> | 80% | 43,323 psi | 67% | 3136 fps | 96.2% |
| Alliant Reloder-16 | <<locked>> | 80% | 49,414 psi | 76% | 3301 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 80% | 42,902 psi | 66% | 3127 fps | 96.1% |
| Alliant Reloder-22 | <<locked>> | 82% | 41,510 psi | 64% | 3117 fps | 95.6% |
| Alliant Reloder-23 | <<locked>> | 80% | 37,391 psi | 58% | 3009 fps | 99.6% |
| Alliant Reloder-25 | <<locked>> | 80% | 32,184 psi | 50% | 2887 fps | 95.4% |
| Alliant Reloder-26 | <<locked>> | 80% | 42,061 psi | 65% | 3173 fps | 99.2% |
| Bofors RP15 | <<locked>> | 84% | 41,307 psi | 64% | 3110 fps | 95.4% |
| Bofors RP30 | <<locked>> | 90% | 42,714 psi | 66% | 3159 fps | 95.2% |
| Bofors RP5 | <<locked>> | 82% | 41,510 psi | 64% | 3117 fps | 95.6% |
| Bofors RP7 | <<locked>> | 80% | 53,214 psi | 82% | 3297 fps | 99.2% |
| Hodgdon H1000 | <<locked>> | 88% | 41,031 psi | 63% | 3104 fps | 95.1% |
| Hodgdon H414 | <<locked>> | 80% | 53,229 psi | 82% | 3353 fps | 99.5% |
| Hodgdon H4831 | <<locked>> | 84% | 47,224 psi | 73% | 3205 fps | 95.4% |
| Hodgdon H4831 SC | <<locked>> | 84% | 46,282 psi | 71% | 3186 fps | 95.2% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 46,267 psi | 71% | 3156 fps | 100% |
| Hodgdon Retumbo | 74.4 gr | 86% | 38,856 psi | 60% | 3136 fps | 95.3% |
| Hodgdon Superformance | <<locked>> | 80% | 53,824 psi | 83% | 3376 fps | 99.4% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,833 psi | 43% | 2018 fps | 100% |
| IMR 4350 | <<locked>> | 80% | 48,646 psi | 75% | 3212 fps | 98.6% |
| IMR 4451 Enduron | <<locked>> | 80% | 54,563 psi | 84% | 3327 fps | 99.6% |
| IMR 4831 | <<locked>> | 80% | 48,631 psi | 75% | 3222 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 82% | 45,150 psi | 69% | 3133 fps | 95.1% |
| IMR 7828 SSC | <<locked>> | 86% | 45,774 psi | 70% | 3241 fps | 95.7% |
| IMR 8133 Enduron | <<locked>> | 98% | 43,729 psi | 67% | 3196 fps | 95.3% |
| Lovex S065 | <<locked>> | 80% | 52,098 psi | 80% | 3264 fps | 99.9% |
| Lovex S070 | <<locked>> | 80% | 50,415 psi | 78% | 3248 fps | 99.3% |
| Lovex S071 | <<locked>> | 80% | 32,837 psi | 51% | 2818 fps | 95% |
| Norma 204 | <<locked>> | 80% | 49,284 psi | 76% | 3258 fps | 97.7% |
| Norma 217 | <<locked>> | 94% | 38,203 psi | 59% | 3074 fps | 95.6% |
| Norma MRP | <<locked>> | 80% | 41,075 psi | 63% | 3130 fps | 96.9% |
| Norma URP | <<locked>> | 80% | 50,125 psi | 77% | 3271 fps | 100% |
| Ramshot Grand | <<locked>> | 84% | 42,685 psi | 66% | 3173 fps | 95% |
| Ramshot Hunter | <<locked>> | 80% | 49,211 psi | 76% | 3264 fps | 99.4% |
| Ramshot Magnum | <<locked>> | 84% | 38,305 psi | 59% | 3025 fps | 95.5% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 28,543 psi | 44% | 2067 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 51,895 psi | 80% | 3314 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 50,473 psi | 78% | 3337 fps | 100% |
| ReloadSwiss RS 76 | 77.8 gr | 84% | 35,694 psi | 55% | 3025 fps | 95.1% |
| ReloadSwiss RS 80 | <<locked>> | 94% | 48,298 psi | 74% | 3301 fps | 95.3% |
| Rottweil R 904 | <<locked>> | 80% | 43,932 psi | 68% | 3117 fps | 95.3% |
| Rottweil R 905 | <<locked>> | 80% | 42,148 psi | 65% | 3107 fps | 96% |
| Rottweil R 907 | <<locked>> | 80% | 53,214 psi | 82% | 3297 fps | 99.2% |
| Shooters World Long Rifle | <<locked>> | 80% | 52,098 psi | 80% | 3264 fps | 99.9% |
| Shooters World SW4350 | <<locked>> | 80% | 50,415 psi | 78% | 3248 fps | 99.3% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 50,981 psi | 78% | 3202 fps | 99.3% |
| SNPE Vectan Tubal 8000 | <<locked>> | 80% | 41,814 psi | 64% | 3104 fps | 95.9% |
| Somchem S361 | <<locked>> | 82% | 48,196 psi | 74% | 3169 fps | 95.9% |
| Somchem S365 | <<locked>> | 80% | 47,587 psi | 73% | 3219 fps | 100% |
| Somchem S385 | <<locked>> | 80% | 42,685 psi | 66% | 3087 fps | 97.1% |
| Vihtavuori N160 | <<locked>> | 80% | 51,721 psi | 80% | 3271 fps | 100% |
| Vihtavuori N165 | <<locked>> | 82% | 39,813 psi | 61% | 3009 fps | 95.9% |
| Vihtavuori N550 | <<locked>> | 80% | 51,082 psi | 79% | 3268 fps | 100% |
| Vihtavuori N555 | <<locked>> | 80% | 41,568 psi | 64% | 3100 fps | 99.5% |
| Vihtavuori N560 | 75.4 gr | 84% | 47,311 psi | 73% | 3271 fps | 95.5% |
| Vihtavuori N565 | <<locked>> | 88% | 44,730 psi | 69% | 3186 fps | 95% |
| Vihtavuori N568 | <<locked>> | 94% | 49,153 psi | 76% | 3320 fps | 95% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 51,285 psi | 79% | 3215 fps | 100% |
| Winchester 760 | <<locked>> | 80% | 53,229 psi | 82% | 3353 fps | 99.5% |
| Winchester StaBALL HD | <<locked>> | 80% | 34,476 psi | 53% | 3018 fps | 99.7% |
| Winchester Supreme 780 | <<locked>> | 82% | 42,221 psi | 65% | 3071 fps | 96% |
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 69 powders for 6.5-300 Weatherby Mag. loaded with the .264 | 100gr | Peregrine VLR-4. Hodgdon Retumbo delivers the highest muzzle velocity at 3,543 fps; across all powders the maximum-charge window runs from 2,247 fps to 3,543 fps. ADI AR 2217 gives the best case fill at 100 %, and 69 of the 69 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (448 MPa), the top charges use 57–90 %, leaving at least 10 % headroom. The 100.0 gr projectile in 0.264" calls for a 1:9.0 twist; slower twists will usually not stabilise this weight. ADI AR 2217, ADI AR 2225, 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. Hodgdon Retumbo, ReloadSwiss RS 76, Vihtavuori N560 rank at the top here: for 6.5-300 Weatherby Mag. with the .264 | 100gr | Peregrine VLR-4 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.