Load Specifications
Load data in caliber 6.5 PRC with .264 | 93gr | RWS Evolution Green bullet and 96 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Alliant Power Pro 2000-MR, ReloadSwiss RS 60 and Alliant Reloder-17.
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.
A valid access license is required to use the Personalized Load Calculator.
You can find more information in our FAQ: How can I use the Personalized Load Calculator?
Max Load - Barrel Length: 24"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2015 | <<locked>> | 84% | 56,550 psi | 87% | 3248 fps | 100% |
| Accurate 2460 | <<locked>> | 82% | 58,755 psi | 90% | 3327 fps | 100% |
| Accurate 2495 | <<locked>> | 88% | 55,274 psi | 85% | 3261 fps | 100% |
| Accurate 2520 | <<locked>> | 84% | 57,392 psi | 88% | 3340 fps | 100% |
| Accurate 2700 | <<locked>> | 90% | 58,537 psi | 90% | 3317 fps | 96.9% |
| Accurate 4064 | <<locked>> | 90% | 55,361 psi | 85% | 3314 fps | 100% |
| Accurate 4350 | <<locked>> | 98% | 56,275 psi | 87% | 3402 fps | 99.3% |
| ADI AR 2206H | <<locked>> | 86% | 55,811 psi | 86% | 3350 fps | 99.8% |
| ADI AR 2208 | <<locked>> | 92% | 57,000 psi | 88% | 3350 fps | 99.6% |
| ADI Benchmark 8208 | <<locked>> | 86% | 58,320 psi | 90% | 3356 fps | 100% |
| Alliant AR-Comp | <<locked>> | 84% | 55,825 psi | 86% | 3281 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 88% | 56,115 psi | 86% | 3484 fps | 99.6% |
| Alliant Reloder- TS 15.5 | <<locked>> | 92% | 57,203 psi | 88% | 3376 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 90% | 58,015 psi | 89% | 3406 fps | 99.8% |
| Alliant Reloder-16ᴾ | <<locked>> | 100% | 57,232 psi | 88% | 3471 fps | 99.7% |
| Alliant Reloder-17 | <<locked>> | 94% | 54,984 psi | 85% | 3448 fps | 100% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 40,959 psi | 63% | 3146 fps | 98.3% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 46,470 psi | 72% | 3337 fps | 97.7% |
| Baschieri & Pellagri 107 | <<locked>> | 86% | 56,057 psi | 86% | 3363 fps | 99.4% |
| Bofors RP3 | <<locked>> | 92% | 58,175 psi | 90% | 3396 fps | 100% |
| Bofors RP7 | <<locked>> | 96% | 58,059 psi | 89% | 3356 fps | 97% |
| Hodgdon Benchmark | <<locked>> | 84% | 56,289 psi | 87% | 3281 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 86% | 58,407 psi | 90% | 3389 fps | 100% |
| Hodgdon CFE223 | <<locked>> | 82% | 56,579 psi | 87% | 3438 fps | 99.7% |
| Hodgdon H380 | <<locked>> | 90% | 55,376 psi | 85% | 3343 fps | 98.9% |
| Hodgdon H414 | <<locked>> | 96% | 55,463 psi | 85% | 3396 fps | 97.2% |
| Hodgdon H4350 | <<locked>> | 94% | 55,898 psi | 86% | 3360 fps | 95.9% |
| Hodgdon H4895 | <<locked>> | 86% | 56,376 psi | 87% | 3363 fps | 99.9% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 53,708 psi | 83% | 3327 fps | 99.9% |
| Hodgdon LEVERevolution | <<locked>> | 88% | 56,565 psi | 87% | 3402 fps | 100% |
| Hodgdon Superformance | <<locked>> | 96% | 56,463 psi | 87% | 3435 fps | 97.1% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,433 psi | 55% | 2113 fps | 100% |
| Hodgdon VARGET | <<locked>> | 88% | 57,812 psi | 89% | 3369 fps | 100% |
| IMR 3031 | <<locked>> | 86% | 56,376 psi | 87% | 3350 fps | 100% |
| IMR 4064 | <<locked>> | 90% | 56,463 psi | 87% | 3333 fps | 99.7% |
| IMR 4166 Enduron | <<locked>> | 88% | 56,478 psi | 87% | 3307 fps | 97.3% |
| IMR 4350ᴾ | <<locked>> | 100% | 58,639 psi | 90% | 3383 fps | 97.2% |
| IMR 4451 Enduron | <<locked>> | 94% | 56,420 psi | 87% | 3333 fps | 97.2% |
| IMR 4831ᴾ | <<locked>> | 100% | 56,869 psi | 88% | 3392 fps | 99.4% |
| IMR 4895 | <<locked>> | 88% | 55,608 psi | 86% | 3376 fps | 99.8% |
| IMR 8208 XBR | <<locked>> | 86% | 58,320 psi | 90% | 3356 fps | 100% |
| Lovex D073.6 | <<locked>> | 86% | 55,970 psi | 86% | 3327 fps | 100% |
| Lovex S060 | <<locked>> | 88% | 58,784 psi | 90% | 3333 fps | 99.9% |
| Lovex S062 | <<locked>> | 90% | 56,202 psi | 86% | 3327 fps | 100% |
| Lovex S065 | <<locked>> | 96% | 55,753 psi | 86% | 3320 fps | 98.3% |
| Lovex S070 | <<locked>> | 98% | 57,058 psi | 88% | 3363 fps | 97.7% |
| Norma 201 | <<locked>> | 88% | 58,059 psi | 89% | 3353 fps | 100% |
| Norma 202 | <<locked>> | 86% | 55,056 psi | 85% | 3294 fps | 100% |
| Norma 203B | <<locked>> | 90% | 57,188 psi | 88% | 3389 fps | 99.9% |
| Norma URP | <<locked>> | 98% | 55,245 psi | 85% | 3389 fps | 99.2% |
| Ramshot Big Game | <<locked>> | 90% | 58,334 psi | 90% | 3419 fps | 99.9% |
| Ramshot Hunterᴾ | <<locked>> | 100% | 58,204 psi | 90% | 3448 fps | 98.5% |
| Ramshot TAC | <<locked>> | 84% | 55,303 psi | 85% | 3310 fps | 98.4% |
| Ramshot Wild Boar | <<locked>> | 84% | 54,926 psi | 85% | 3333 fps | 99.7% |
| Ramshot X-Terminator | <<locked>> | 82% | 55,608 psi | 86% | 3294 fps | 99.7% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 35,679 psi | 55% | 2159 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 82% | 57,566 psi | 89% | 3337 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 90% | 55,811 psi | 86% | 3323 fps | 97.8% |
| ReloadSwiss RS 52 | <<locked>> | 86% | 54,940 psi | 85% | 3415 fps | 99.5% |
| ReloadSwiss RS 60 | <<locked>> | 94% | 58,682 psi | 90% | 3517 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 98% | 56,246 psi | 87% | 3425 fps | 99.2% |
| ReloadSwiss RS 70 | <<locked>> | 98% | 55,709 psi | 86% | 3455 fps | 99% |
| Rottweil R 901 | <<locked>> | 86% | 58,378 psi | 90% | 3330 fps | 100% |
| Rottweil R 902 | <<locked>> | 90% | 58,595 psi | 90% | 3350 fps | 100% |
| Rottweil R 903 | <<locked>> | 94% | 58,015 psi | 89% | 3386 fps | 100% |
| Rottweil R 907 | <<locked>> | 96% | 58,059 psi | 89% | 3356 fps | 97% |
| Shooters World Long Rifle | <<locked>> | 96% | 55,753 psi | 86% | 3320 fps | 98.3% |
| Shooters World Match Rifle | <<locked>> | 86% | 55,970 psi | 86% | 3327 fps | 100% |
| Shooters World Precision | <<locked>> | 90% | 56,202 psi | 86% | 3327 fps | 100% |
| Shooters World SW4350 | <<locked>> | 98% | 57,058 psi | 88% | 3363 fps | 97.7% |
| SNPE Vectan SP 11 | <<locked>> | 92% | 56,478 psi | 87% | 3392 fps | 99.8% |
| SNPE Vectan SP 7 | <<locked>> | 86% | 57,638 psi | 89% | 3353 fps | 99.1% |
| SNPE Vectan SP 9 | <<locked>> | 88% | 58,291 psi | 90% | 3379 fps | 99.9% |
| SNPE Vectan Tubal 3000 | <<locked>> | 86% | 55,840 psi | 86% | 3232 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 92% | 56,463 psi | 87% | 3225 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 96% | 56,318 psi | 87% | 3271 fps | 97.3% |
| Somchem S321 | <<locked>> | 82% | 56,086 psi | 86% | 3330 fps | 100% |
| Somchem S335 | <<locked>> | 86% | 55,158 psi | 85% | 3222 fps | 100% |
| Somchem S341 | <<locked>> | 86% | 57,101 psi | 88% | 3337 fps | 99.8% |
| Somchem S355 | <<locked>> | 94% | 58,146 psi | 89% | 3383 fps | 100% |
| Somchem S365ᴾ | <<locked>> | 100% | 53,287 psi | 82% | 3389 fps | 100% |
| Vihtavuori N130 | <<locked>> | 82% | 55,332 psi | 85% | 3189 fps | 100% |
| Vihtavuori N133 | <<locked>> | 86% | 56,159 psi | 86% | 3215 fps | 100% |
| Vihtavuori N135 | <<locked>> | 90% | 58,421 psi | 90% | 3307 fps | 100% |
| Vihtavuori N140 | <<locked>> | 88% | 55,680 psi | 86% | 3271 fps | 100% |
| Vihtavuori N150 | <<locked>> | 94% | 56,231 psi | 87% | 3301 fps | 100% |
| Vihtavuori N160 | <<locked>> | 98% | 57,885 psi | 89% | 3389 fps | 99.4% |
| Vihtavuori N530 | <<locked>> | 84% | 55,303 psi | 85% | 3297 fps | 100% |
| Vihtavuori N540 | <<locked>> | 90% | 57,798 psi | 89% | 3317 fps | 100% |
| Vihtavuori N550 | <<locked>> | 98% | 56,753 psi | 87% | 3389 fps | 99.2% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 45,165 psi | 70% | 3235 fps | 98.2% |
| Winchester 6.5 StaBALL | <<locked>> | 98% | 58,479 psi | 90% | 3363 fps | 100% |
| Winchester 748 | <<locked>> | 84% | 55,695 psi | 86% | 3353 fps | 100% |
| Winchester 760 | <<locked>> | 96% | 55,796 psi | 86% | 3402 fps | 97.3% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 36,825 psi | 57% | 3136 fps | 98% |
| Winchester StaBALL Match | <<locked>> | 88% | 58,450 psi | 90% | 3389 fps | 100% |
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 2015 | <<locked>> | 80% | 49,530 psi | 76% | 3136 fps | 100% |
| Accurate 2460 | <<locked>> | 80% | 54,897 psi | 84% | 3268 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 41,945 psi | 65% | 3031 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 49,937 psi | 77% | 3219 fps | 100% |
| Accurate 2700 | <<locked>> | 86% | 51,184 psi | 79% | 3189 fps | 95.3% |
| Accurate 4064 | <<locked>> | 80% | 39,668 psi | 61% | 3018 fps | 99.9% |
| Accurate 4350 | <<locked>> | 88% | 39,175 psi | 60% | 3058 fps | 95.8% |
| ADI AR 2206H | <<locked>> | 80% | 45,847 psi | 71% | 3159 fps | 98.7% |
| ADI AR 2208 | <<locked>> | 80% | 39,030 psi | 60% | 2982 fps | 96.4% |
| ADI Benchmark 8208 | <<locked>> | 80% | 47,964 psi | 74% | 3176 fps | 99.6% |
| Alliant AR-Comp | <<locked>> | 80% | 48,530 psi | 75% | 3166 fps | 100% |
| Alliant Power Pro 2000-MR | 49.5 gr | 80% | 42,177 psi | 65% | 3192 fps | 97.2% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 38,682 psi | 60% | 3005 fps | 97.9% |
| Alliant Reloder-15 | <<locked>> | 80% | 41,452 psi | 64% | 3077 fps | 97.2% |
| Alliant Reloder-16 | <<locked>> | 88% | 38,899 psi | 60% | 3081 fps | 95.9% |
| Alliant Reloder-17 | 48.7 gr | 80% | 33,460 psi | 51% | 2949 fps | 95.5% |
| Alliant Reloder-23 | <<locked>> | 94% | 33,663 psi | 52% | 2946 fps | 95.6% |
| Alliant Reloder-26 | <<locked>> | 96% | 39,987 psi | 62% | 3176 fps | 95.6% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 45,600 psi | 70% | 3166 fps | 97.8% |
| Bofors RP3 | <<locked>> | 80% | 38,450 psi | 59% | 3009 fps | 97.9% |
| Bofors RP7 | <<locked>> | 92% | 50,952 psi | 78% | 3225 fps | 95.5% |
| Hodgdon Benchmark | <<locked>> | 80% | 49,617 psi | 76% | 3166 fps | 99.9% |
| Hodgdon BL-C2 | <<locked>> | 80% | 47,355 psi | 73% | 3199 fps | 99.8% |
| Hodgdon CFE223 | <<locked>> | 80% | 52,504 psi | 81% | 3366 fps | 99.3% |
| Hodgdon H380 | <<locked>> | 80% | 39,320 psi | 61% | 3012 fps | 95.2% |
| Hodgdon H414 | <<locked>> | 92% | 48,283 psi | 74% | 3261 fps | 95.6% |
| Hodgdon H4350 | <<locked>> | 92% | 52,272 psi | 80% | 3291 fps | 95% |
| Hodgdon H4895 | <<locked>> | 80% | 46,282 psi | 71% | 3173 fps | 99.1% |
| Hodgdon Hybrid 100V | <<locked>> | 86% | 33,388 psi | 51% | 2887 fps | 95.7% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 42,598 psi | 66% | 3136 fps | 98.8% |
| Hodgdon Superformance | <<locked>> | 92% | 48,515 psi | 75% | 3281 fps | 95.1% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,324 psi | 41% | 1896 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 44,556 psi | 69% | 3120 fps | 98.8% |
| IMR 3031 | <<locked>> | 80% | 46,224 psi | 71% | 3179 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 40,959 psi | 63% | 3025 fps | 97.2% |
| IMR 4166 Enduron | <<locked>> | 84% | 49,443 psi | 76% | 3176 fps | 95.8% |
| IMR 4350 | <<locked>> | 96% | 51,547 psi | 79% | 3255 fps | 95.7% |
| IMR 4451 Enduron | <<locked>> | 90% | 49,661 psi | 76% | 3205 fps | 95.7% |
| IMR 4831 | <<locked>> | 88% | 37,826 psi | 58% | 3005 fps | 95.4% |
| IMR 4895 | <<locked>> | 80% | 42,496 psi | 65% | 3114 fps | 98% |
| IMR 8208 XBR | <<locked>> | 80% | 47,964 psi | 74% | 3176 fps | 99.6% |
| Lovex D073.6 | <<locked>> | 80% | 45,368 psi | 70% | 3140 fps | 100% |
| Lovex S060 | <<locked>> | 80% | 45,832 psi | 71% | 3097 fps | 98.7% |
| Lovex S062 | <<locked>> | 80% | 40,828 psi | 63% | 3028 fps | 98.7% |
| Lovex S065 | <<locked>> | 88% | 43,308 psi | 67% | 3077 fps | 95.6% |
| Lovex S070 | <<locked>> | 92% | 46,833 psi | 72% | 3169 fps | 95.4% |
| Norma 201 | <<locked>> | 80% | 44,686 psi | 69% | 3107 fps | 99.3% |
| Norma 202 | <<locked>> | 80% | 45,339 psi | 70% | 3120 fps | 100% |
| Norma 203B | <<locked>> | 80% | 40,843 psi | 63% | 3064 fps | 97.6% |
| Norma URP | <<locked>> | 88% | 39,204 psi | 60% | 3058 fps | 95.7% |
| Ramshot Big Game | <<locked>> | 80% | 40,872 psi | 63% | 3081 fps | 97.5% |
| Ramshot Hunter | <<locked>> | 92% | 44,208 psi | 68% | 3176 fps | 95.4% |
| Ramshot TAC | <<locked>> | 80% | 48,269 psi | 74% | 3179 fps | 97.1% |
| Ramshot Wild Boar | <<locked>> | 80% | 47,790 psi | 74% | 3202 fps | 99% |
| Ramshot X-Terminator | <<locked>> | 80% | 52,127 psi | 80% | 3235 fps | 99.4% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 26,614 psi | 41% | 1939 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 54,143 psi | 83% | 3281 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 84% | 45,397 psi | 70% | 3120 fps | 95.4% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 44,280 psi | 68% | 3202 fps | 97.8% |
| ReloadSwiss RS 60 | 48.7 gr | 80% | 35,679 psi | 55% | 3031 fps | 98.8% |
| ReloadSwiss RS 62 | <<locked>> | 88% | 39,030 psi | 60% | 3074 fps | 95.4% |
| ReloadSwiss RS 70 | <<locked>> | 90% | 41,989 psi | 65% | 3163 fps | 95.7% |
| Rottweil R 901 | <<locked>> | 80% | 48,515 psi | 75% | 3163 fps | 100% |
| Rottweil R 902 | <<locked>> | 80% | 42,598 psi | 66% | 3051 fps | 99% |
| Rottweil R 903 | <<locked>> | 80% | 35,882 psi | 55% | 2936 fps | 96.9% |
| Rottweil R 907 | <<locked>> | 92% | 50,952 psi | 78% | 3225 fps | 95.5% |
| Shooters World Long Rifle | <<locked>> | 88% | 43,308 psi | 67% | 3077 fps | 95.6% |
| Shooters World Match Rifle | <<locked>> | 80% | 45,368 psi | 70% | 3140 fps | 100% |
| Shooters World Precision | <<locked>> | 80% | 40,828 psi | 63% | 3028 fps | 98.7% |
| Shooters World SW4350 | <<locked>> | 92% | 46,833 psi | 72% | 3169 fps | 95.4% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 37,304 psi | 57% | 2999 fps | 96.5% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 46,398 psi | 71% | 3143 fps | 97.2% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 44,643 psi | 69% | 3127 fps | 98.4% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 46,108 psi | 71% | 3064 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 38,392 psi | 59% | 2900 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 92% | 49,052 psi | 75% | 3140 fps | 95.7% |
| Somchem S321 | <<locked>> | 80% | 52,431 psi | 81% | 3268 fps | 100% |
| Somchem S335 | <<locked>> | 80% | 45,672 psi | 70% | 3058 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 46,398 psi | 71% | 3146 fps | 98.7% |
| Somchem S355 | <<locked>> | 80% | 36,724 psi | 57% | 2946 fps | 96.9% |
| Somchem S365 | <<locked>> | 84% | 30,545 psi | 47% | 2861 fps | 96% |
| Vihtavuori N130 | <<locked>> | 80% | 52,011 psi | 80% | 3140 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 46,514 psi | 72% | 3058 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 42,163 psi | 65% | 3035 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 42,815 psi | 66% | 3041 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 34,954 psi | 54% | 2871 fps | 97.8% |
| Vihtavuori N160 | <<locked>> | 86% | 38,305 psi | 59% | 2999 fps | 95.3% |
| Vihtavuori N530 | <<locked>> | 80% | 48,414 psi | 75% | 3176 fps | 99.7% |
| Vihtavuori N540 | <<locked>> | 80% | 41,524 psi | 64% | 3028 fps | 99.9% |
| Vihtavuori N550 | <<locked>> | 88% | 40,509 psi | 62% | 3064 fps | 95.9% |
| Vihtavuori N555 | <<locked>> | 94% | 36,695 psi | 56% | 3035 fps | 95.7% |
| Winchester 6.5 StaBALL | <<locked>> | 82% | 33,359 psi | 51% | 2841 fps | 95.9% |
| Winchester 748 | <<locked>> | 80% | 48,225 psi | 74% | 3222 fps | 99.9% |
| Winchester 760 | <<locked>> | 92% | 48,559 psi | 75% | 3264 fps | 95.6% |
| Winchester StaBALL HD | <<locked>> | 96% | 32,068 psi | 49% | 2972 fps | 95.3% |
| Winchester StaBALL Match | <<locked>> | 80% | 44,266 psi | 68% | 3127 fps | 98.8% |
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 113 powders for 6.5 PRC loaded with the .264 | 93gr | RWS Evolution Green. ReloadSwiss RS 60 delivers the highest muzzle velocity at 3,517 fps; across all powders the maximum-charge window runs from 2,113 fps to 3,517 fps. Accurate 3100 gives the best case fill at 100 %, and 113 of the 113 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (448 MPa), the top charges use 54–90 %, leaving at least 10 % headroom. The 93.0 gr projectile in 0.264" calls for a 1:8.5 twist; slower twists will usually not stabilise this weight. Accurate 3100, ADI AR 2209, Alliant Reloder-16 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 Power Pro 2000-MR, ReloadSwiss RS 60, Alliant Reloder-17 rank at the top here: for 6.5 PRC with the .264 | 93gr | RWS Evolution Green they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, ADI AR 2209, Alliant Reloder-19, Alliant Reloder-22 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.