Load Specifications
Load data in caliber 6.5 mm Rem. Mag. with .264 | 100gr | Winchester Pointed Soft Point bullet and 98 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Alliant Reloder-17, ReloadSwiss RS 60 and Winchester 760.
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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You can find more information in our FAQ: How can I use the Personalized Load Calculator?
Max Load - Barrel Length: 26"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2015 | <<locked>> | 82% | 55,912 psi | 89% | 3179 fps | 100% |
| Accurate 2495 | <<locked>> | 86% | 55,521 psi | 88% | 3209 fps | 100% |
| Accurate 2520 | <<locked>> | 82% | 56,826 psi | 90% | 3278 fps | 100% |
| Accurate 2700 | <<locked>> | 86% | 53,911 psi | 85% | 3199 fps | 97.1% |
| Accurate 3100ᴾ | <<locked>> | 100% | 46,572 psi | 74% | 3153 fps | 97.4% |
| Accurate 4064 | <<locked>> | 88% | 55,608 psi | 88% | 3261 fps | 100% |
| Accurate 4350 | <<locked>> | 96% | 56,115 psi | 89% | 3360 fps | 99.8% |
| ADI AR 2206H | <<locked>> | 84% | 55,245 psi | 88% | 3294 fps | 100% |
| ADI AR 2208 | <<locked>> | 90% | 56,275 psi | 89% | 3294 fps | 99.9% |
| ADI AR 2209ᴾ | <<locked>> | 100% | 54,012 psi | 86% | 3327 fps | 96.3% |
| ADI Benchmark 8208 | <<locked>> | 82% | 54,201 psi | 86% | 3241 fps | 100% |
| Alliant AR-Comp | <<locked>> | 82% | 55,245 psi | 88% | 3209 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 86% | 55,419 psi | 88% | 3428 fps | 99.9% |
| Alliant Reloder- TS 15.5 | <<locked>> | 90% | 56,797 psi | 90% | 3320 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 86% | 53,838 psi | 85% | 3287 fps | 99.8% |
| Alliant Reloder-16 | <<locked>> | 98% | 56,927 psi | 90% | 3422 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 92% | 54,607 psi | 87% | 3399 fps | 100% |
| Alliant Reloder-19ᴾ | <<locked>> | 100% | 52,953 psi | 84% | 3314 fps | 96.3% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 44,019 psi | 70% | 3189 fps | 99.7% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 49,937 psi | 79% | 3383 fps | 99.4% |
| Baschieri & Pellagri 107 | <<locked>> | 84% | 55,317 psi | 88% | 3307 fps | 99.8% |
| Bofors RP3 | <<locked>> | 88% | 54,215 psi | 86% | 3284 fps | 100% |
| Bofors RP7 | <<locked>> | 92% | 53,838 psi | 85% | 3245 fps | 97.3% |
| Hodgdon Benchmark | <<locked>> | 82% | 55,376 psi | 88% | 3215 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 82% | 53,693 psi | 85% | 3264 fps | 100% |
| Hodgdon H380 | <<locked>> | 88% | 54,781 psi | 87% | 3294 fps | 99.5% |
| Hodgdon H414 | <<locked>> | 94% | 55,071 psi | 87% | 3353 fps | 98.2% |
| Hodgdon H4350 | <<locked>> | 92% | 55,201 psi | 87% | 3310 fps | 97% |
| Hodgdon H4895 | <<locked>> | 84% | 55,811 psi | 88% | 3304 fps | 100% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 56,942 psi | 90% | 3333 fps | 100% |
| Hodgdon LEVERevolution | <<locked>> | 86% | 55,927 psi | 89% | 3343 fps | 100% |
| Hodgdon Superformance | <<locked>> | 94% | 55,463 psi | 88% | 3389 fps | 98% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,824 psi | 57% | 2073 fps | 100% |
| Hodgdon VARGET | <<locked>> | 86% | 57,029 psi | 90% | 3307 fps | 100% |
| IMR 3031 | <<locked>> | 84% | 56,202 psi | 89% | 3287 fps | 100% |
| IMR 4064 | <<locked>> | 88% | 55,753 psi | 88% | 3274 fps | 99.9% |
| IMR 4166 Enduron | <<locked>> | 86% | 55,376 psi | 88% | 3248 fps | 98.1% |
| IMR 4350 | <<locked>> | 96% | 54,491 psi | 86% | 3274 fps | 97.5% |
| IMR 4451 Enduron | <<locked>> | 92% | 55,767 psi | 88% | 3284 fps | 98.1% |
| IMR 4831 | <<locked>> | 98% | 56,594 psi | 90% | 3350 fps | 99.8% |
| IMR 4895 | <<locked>> | 86% | 55,245 psi | 88% | 3323 fps | 100% |
| IMR 8208 XBR | <<locked>> | 82% | 54,201 psi | 86% | 3241 fps | 100% |
| Lovex D073.6 | <<locked>> | 84% | 55,463 psi | 88% | 3264 fps | 100% |
| Lovex S060 | <<locked>> | 84% | 54,433 psi | 86% | 3212 fps | 100% |
| Lovex S062 | <<locked>> | 88% | 55,796 psi | 88% | 3271 fps | 100% |
| Lovex S065 | <<locked>> | 94% | 55,463 psi | 88% | 3278 fps | 99.1% |
| Lovex S070 | <<locked>> | 96% | 56,507 psi | 90% | 3314 fps | 98.5% |
| Norma 201 | <<locked>> | 84% | 54,143 psi | 86% | 3235 fps | 100% |
| Norma 202 | <<locked>> | 84% | 54,549 psi | 86% | 3232 fps | 100% |
| Norma 203B | <<locked>> | 88% | 56,478 psi | 90% | 3330 fps | 100% |
| Norma 204 | <<locked>> | 96% | 55,259 psi | 88% | 3330 fps | 96.5% |
| Norma MRPᴾ | <<locked>> | 100% | 49,400 psi | 78% | 3330 fps | 97.1% |
| Norma URP | <<locked>> | 96% | 54,824 psi | 87% | 3343 fps | 99.7% |
| Ramshot Big Game | <<locked>> | 86% | 53,693 psi | 85% | 3297 fps | 99.9% |
| Ramshot Hunter | <<locked>> | 96% | 53,737 psi | 85% | 3333 fps | 98.7% |
| Ramshot TAC | <<locked>> | 82% | 54,476 psi | 86% | 3258 fps | 99.1% |
| Ramshot Wild Boar | <<locked>> | 82% | 54,186 psi | 86% | 3274 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 36,434 psi | 58% | 2123 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 88% | 54,824 psi | 87% | 3271 fps | 98.5% |
| ReloadSwiss RS 52 | <<locked>> | 84% | 54,331 psi | 86% | 3360 fps | 99.9% |
| ReloadSwiss RS 60 | <<locked>> | 90% | 54,201 psi | 86% | 3396 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 96% | 56,173 psi | 89% | 3383 fps | 99.7% |
| ReloadSwiss RS 70 | <<locked>> | 96% | 54,998 psi | 87% | 3412 fps | 99.6% |
| Rottweil R 901 | <<locked>> | 82% | 54,839 psi | 87% | 3215 fps | 100% |
| Rottweil R 902 | <<locked>> | 86% | 54,650 psi | 87% | 3235 fps | 100% |
| Rottweil R 903 | <<locked>> | 90% | 54,056 psi | 86% | 3274 fps | 100% |
| Rottweil R 905ᴾ | <<locked>> | 100% | 52,011 psi | 82% | 3297 fps | 96.2% |
| Rottweil R 907 | <<locked>> | 92% | 53,838 psi | 85% | 3245 fps | 97.3% |
| Shooters World Long Rifle | <<locked>> | 94% | 55,463 psi | 88% | 3278 fps | 99.1% |
| Shooters World Match Rifle | <<locked>> | 84% | 55,463 psi | 88% | 3264 fps | 100% |
| Shooters World Precision | <<locked>> | 88% | 55,796 psi | 88% | 3271 fps | 100% |
| Shooters World SW4350 | <<locked>> | 96% | 56,507 psi | 90% | 3314 fps | 98.5% |
| SNPE Vectan SP 11 | <<locked>> | 90% | 55,927 psi | 89% | 3340 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 84% | 56,623 psi | 90% | 3291 fps | 99.5% |
| SNPE Vectan SP 9 | <<locked>> | 84% | 53,824 psi | 85% | 3258 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 84% | 55,158 psi | 87% | 3163 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 90% | 55,956 psi | 89% | 3163 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 94% | 55,622 psi | 88% | 3222 fps | 98.1% |
| SNPE Vectan Tubal 8000ᴾ | <<locked>> | 100% | 51,517 psi | 82% | 3291 fps | 96.1% |
| Somchem S335 | <<locked>> | 84% | 54,853 psi | 87% | 3163 fps | 100% |
| Somchem S341 | <<locked>> | 84% | 56,347 psi | 89% | 3281 fps | 100% |
| Somchem S355 | <<locked>> | 90% | 54,085 psi | 86% | 3268 fps | 100% |
| Somchem S365 | <<locked>> | 98% | 53,534 psi | 85% | 3346 fps | 100% |
| Somchem S385ᴾ | <<locked>> | 100% | 52,663 psi | 83% | 3271 fps | 97.2% |
| Vihtavuori N133 | <<locked>> | 84% | 55,535 psi | 88% | 3146 fps | 100% |
| Vihtavuori N135 | <<locked>> | 86% | 54,665 psi | 87% | 3196 fps | 100% |
| Vihtavuori N140 | <<locked>> | 86% | 55,129 psi | 87% | 3209 fps | 100% |
| Vihtavuori N150 | <<locked>> | 92% | 55,535 psi | 88% | 3241 fps | 100% |
| Vihtavuori N160 | <<locked>> | 94% | 53,766 psi | 85% | 3281 fps | 99.6% |
| Vihtavuori N530 | <<locked>> | 82% | 54,578 psi | 87% | 3238 fps | 100% |
| Vihtavuori N540 | <<locked>> | 88% | 57,014 psi | 90% | 3255 fps | 100% |
| Vihtavuori N550 | <<locked>> | 96% | 56,420 psi | 89% | 3343 fps | 99.7% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 48,907 psi | 78% | 3274 fps | 99.5% |
| Winchester 6.5 StaBALL | <<locked>> | 94% | 53,838 psi | 85% | 3248 fps | 100% |
| Winchester 748 | <<locked>> | 82% | 54,969 psi | 87% | 3291 fps | 100% |
| Winchester 760 | <<locked>> | 94% | 55,071 psi | 87% | 3353 fps | 98.2% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 39,566 psi | 63% | 3209 fps | 99.8% |
| Winchester StaBALL Match | <<locked>> | 84% | 53,664 psi | 85% | 3264 fps | 100% |
Recommended = one of the top powders for this cartridge and bullet combination.
Start Load - Barrel Length: 26"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2015 | <<locked>> | 80% | 52,533 psi | 83% | 3127 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 45,527 psi | 72% | 3045 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 53,040 psi | 84% | 3219 fps | 100% |
| Accurate 2700 | <<locked>> | 82% | 47,224 psi | 75% | 3074 fps | 95.6% |
| Accurate 3100 | <<locked>> | 96% | 40,480 psi | 64% | 3025 fps | 95.8% |
| Accurate 4064 | <<locked>> | 80% | 43,018 psi | 68% | 3041 fps | 100% |
| Accurate 4350 | <<locked>> | 82% | 34,418 psi | 55% | 2907 fps | 95.5% |
| ADI AR 2206H | <<locked>> | 80% | 48,617 psi | 77% | 3176 fps | 99.7% |
| ADI AR 2208 | <<locked>> | 80% | 41,408 psi | 66% | 3005 fps | 98.2% |
| ADI AR 2209 | <<locked>> | 98% | 50,676 psi | 80% | 3264 fps | 95.5% |
| ADI Benchmark 8208 | <<locked>> | 80% | 50,691 psi | 80% | 3179 fps | 100% |
| Alliant AR-Comp | <<locked>> | 80% | 51,735 psi | 82% | 3159 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 44,759 psi | 71% | 3219 fps | 98.9% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 41,408 psi | 66% | 3031 fps | 99.3% |
| Alliant Reloder-15 | <<locked>> | 80% | 44,237 psi | 70% | 3100 fps | 98.8% |
| Alliant Reloder-16 | <<locked>> | 82% | 34,084 psi | 54% | 2913 fps | 95.5% |
| Alliant Reloder-17 | 48.3 gr | 80% | 36,027 psi | 57% | 2999 fps | 98% |
| Alliant Reloder-19 | <<locked>> | 98% | 49,792 psi | 79% | 3251 fps | 95.5% |
| Alliant Reloder-23 | <<locked>> | 88% | 29,921 psi | 47% | 2808 fps | 95.4% |
| Alliant Reloder-26 | <<locked>> | 90% | 34,693 psi | 55% | 3012 fps | 95% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 48,240 psi | 76% | 3179 fps | 99.1% |
| Bofors RP3 | <<locked>> | 80% | 41,278 psi | 65% | 3035 fps | 99.3% |
| Bofors RP7 | <<locked>> | 86% | 44,498 psi | 71% | 3061 fps | 95.1% |
| Hodgdon Benchmark | <<locked>> | 80% | 52,156 psi | 83% | 3163 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 80% | 50,241 psi | 80% | 3205 fps | 100% |
| Hodgdon H380 | <<locked>> | 80% | 41,916 psi | 66% | 3038 fps | 97.3% |
| Hodgdon H414 | <<locked>> | 86% | 42,076 psi | 67% | 3091 fps | 95.1% |
| Hodgdon H4350 | <<locked>> | 88% | 48,573 psi | 77% | 3182 fps | 95.4% |
| Hodgdon H4895 | <<locked>> | 80% | 49,095 psi | 78% | 3186 fps | 99.9% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 29,472 psi | 47% | 2740 fps | 95.4% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 45,585 psi | 72% | 3159 fps | 99.8% |
| Hodgdon Superformance | <<locked>> | 88% | 44,599 psi | 71% | 3173 fps | 95.4% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,643 psi | 42% | 1857 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 47,166 psi | 75% | 3133 fps | 99.7% |
| IMR 3031 | <<locked>> | 80% | 49,298 psi | 78% | 3179 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 43,482 psi | 69% | 3045 fps | 98.8% |
| IMR 4166 Enduron | <<locked>> | 80% | 45,934 psi | 73% | 3068 fps | 96.1% |
| IMR 4350 | <<locked>> | 90% | 45,150 psi | 72% | 3094 fps | 95.4% |
| IMR 4451 Enduron | <<locked>> | 84% | 43,337 psi | 69% | 3038 fps | 95.3% |
| IMR 4831 | <<locked>> | 82% | 33,344 psi | 53% | 2858 fps | 95.2% |
| IMR 4895 | <<locked>> | 80% | 45,324 psi | 72% | 3136 fps | 99.4% |
| IMR 8208 XBR | <<locked>> | 80% | 50,691 psi | 80% | 3179 fps | 100% |
| Lovex D073.6 | <<locked>> | 80% | 48,370 psi | 77% | 3146 fps | 100% |
| Lovex S060 | <<locked>> | 80% | 48,240 psi | 76% | 3100 fps | 99.6% |
| Lovex S062 | <<locked>> | 80% | 43,569 psi | 69% | 3048 fps | 99.7% |
| Lovex S065 | <<locked>> | 82% | 38,058 psi | 60% | 2917 fps | 95.3% |
| Lovex S070 | <<locked>> | 86% | 41,162 psi | 65% | 3009 fps | 95% |
| Norma 201 | <<locked>> | 80% | 47,601 psi | 75% | 3117 fps | 99.9% |
| Norma 202 | <<locked>> | 80% | 48,182 psi | 76% | 3127 fps | 100% |
| Norma 203B | <<locked>> | 80% | 43,642 psi | 69% | 3091 fps | 99.1% |
| Norma 204 | <<locked>> | 94% | 51,517 psi | 82% | 3261 fps | 95.6% |
| Norma MRP | <<locked>> | 96% | 42,946 psi | 68% | 3189 fps | 95.2% |
| Norma URP | <<locked>> | 82% | 34,606 psi | 55% | 2907 fps | 95.4% |
| Ramshot Big Game | <<locked>> | 80% | 43,555 psi | 69% | 3104 fps | 99% |
| Ramshot Hunter | <<locked>> | 88% | 41,176 psi | 65% | 3077 fps | 95.9% |
| Ramshot TAC | <<locked>> | 80% | 50,792 psi | 81% | 3189 fps | 98.6% |
| Ramshot Wild Boar | <<locked>> | 80% | 50,720 psi | 80% | 3215 fps | 99.8% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,035 psi | 43% | 1900 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 42,279 psi | 67% | 3018 fps | 95.8% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 47,195 psi | 75% | 3225 fps | 99.2% |
| ReloadSwiss RS 60 | 48.3 gr | 80% | 38,334 psi | 61% | 3074 fps | 99.9% |
| ReloadSwiss RS 62 | <<locked>> | 82% | 34,084 psi | 54% | 2917 fps | 95% |
| ReloadSwiss RS 70 | <<locked>> | 84% | 36,332 psi | 58% | 2992 fps | 95.1% |
| Rottweil R 901 | <<locked>> | 80% | 51,576 psi | 82% | 3163 fps | 100% |
| Rottweil R 902 | <<locked>> | 80% | 45,411 psi | 72% | 3064 fps | 99.8% |
| Rottweil R 903 | <<locked>> | 80% | 38,769 psi | 61% | 2969 fps | 98.7% |
| Rottweil R 905 | <<locked>> | 98% | 48,399 psi | 77% | 3228 fps | 95.3% |
| Rottweil R 907 | <<locked>> | 86% | 44,498 psi | 71% | 3061 fps | 95.1% |
| Shooters World Long Rifle | <<locked>> | 82% | 38,058 psi | 60% | 2917 fps | 95.3% |
| Shooters World Match Rifle | <<locked>> | 80% | 48,370 psi | 77% | 3146 fps | 100% |
| Shooters World Precision | <<locked>> | 80% | 43,569 psi | 69% | 3048 fps | 99.7% |
| Shooters World SW4350 | <<locked>> | 86% | 41,162 psi | 65% | 3009 fps | 95% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 39,798 psi | 63% | 3025 fps | 98.3% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 49,516 psi | 78% | 3166 fps | 98.7% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 47,166 psi | 75% | 3136 fps | 99.5% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 48,631 psi | 77% | 3058 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 40,785 psi | 65% | 2904 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 86% | 42,815 psi | 68% | 2979 fps | 95.3% |
| SNPE Vectan Tubal 8000 | <<locked>> | 98% | 47,935 psi | 76% | 3219 fps | 95.1% |
| Somchem S335 | <<locked>> | 80% | 48,370 psi | 77% | 3058 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 49,066 psi | 78% | 3156 fps | 99.7% |
| Somchem S355 | <<locked>> | 80% | 39,436 psi | 63% | 2976 fps | 98.7% |
| Somchem S365 | <<locked>> | 80% | 28,993 psi | 46% | 2789 fps | 96.8% |
| Somchem S385 | <<locked>> | 96% | 46,151 psi | 73% | 3143 fps | 95.6% |
| Vihtavuori N133 | <<locked>> | 80% | 49,081 psi | 78% | 3048 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 45,034 psi | 71% | 3038 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 45,513 psi | 72% | 3048 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 37,565 psi | 60% | 2900 fps | 99.3% |
| Vihtavuori N160 | <<locked>> | 80% | 33,562 psi | 53% | 2844 fps | 95% |
| Vihtavuori N530 | <<locked>> | 80% | 50,966 psi | 81% | 3176 fps | 100% |
| Vihtavuori N540 | <<locked>> | 80% | 44,005 psi | 70% | 3035 fps | 100% |
| Vihtavuori N550 | <<locked>> | 82% | 35,505 psi | 56% | 2910 fps | 95.5% |
| Vihtavuori N555 | <<locked>> | 88% | 32,547 psi | 52% | 2897 fps | 95.6% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 33,272 psi | 53% | 2815 fps | 97.3% |
| Winchester 748 | <<locked>> | 80% | 51,314 psi | 81% | 3232 fps | 100% |
| Winchester 760 | 50.8 gr | 86% | 42,076 psi | 67% | 3091 fps | 95.1% |
| Winchester StaBALL HD | <<locked>> | 90% | 28,442 psi | 45% | 2835 fps | 95% |
| Winchester StaBALL Match | <<locked>> | 80% | 46,934 psi | 74% | 3143 fps | 99.8% |
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 98 powders for 6.5 mm Rem. Mag. loaded with the .264 | 100gr | Winchester Pointed Soft Point. Alliant Power Pro 2000-MR delivers the highest muzzle velocity at 3,428 fps; across all powders the maximum-charge window runs from 2,073 fps to 3,428 fps. Accurate 3100 gives the best case fill at 100 %, and 98 of the 98 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (435 MPa), the top charges use 57–90 %, leaving at least 10 % headroom. The 100.0 gr projectile in 0.264" calls for a 1:12.0 twist; slower twists will usually not stabilise this weight. Accurate 3100, ADI AR 2209, Alliant Reloder-19 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. Alliant Reloder-17, ReloadSwiss RS 60, Winchester 760 rank at the top here: for 6.5 mm Rem. Mag. with the .264 | 100gr | Winchester Pointed Soft Point 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.