Load Specifications
Load data in caliber 6.5-06 A-Square with .264 | 85gr | Hammer Hunter bullet and 96 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are ReloadSwiss RS 60, Alliant Reloder-17 and Alliant Power Pro 2000-MR.
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>> | 86% | 58,262 psi | 90% | 3386 fps | 100% |
| Accurate 2460 | <<locked>> | 82% | 56,753 psi | 87% | 3406 fps | 100% |
| Accurate 2495 | <<locked>> | 90% | 57,014 psi | 88% | 3399 fps | 100% |
| Accurate 2520 | <<locked>> | 84% | 55,434 psi | 85% | 3419 fps | 100% |
| Accurate 4064 | <<locked>> | 92% | 57,116 psi | 88% | 3448 fps | 100% |
| Accurate 4350ᴾ | <<locked>> | 100% | 57,769 psi | 89% | 3530 fps | 98.8% |
| ADI AR 2206H | <<locked>> | 88% | 57,392 psi | 88% | 3484 fps | 99.5% |
| ADI AR 2208 | <<locked>> | 94% | 58,523 psi | 90% | 3478 fps | 99.2% |
| ADI Benchmark 8208 | <<locked>> | 86% | 56,217 psi | 86% | 3428 fps | 99.8% |
| Alliant AR-Comp | <<locked>> | 86% | 57,145 psi | 88% | 3419 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 82% | 58,117 psi | 89% | 3560 fps | 99.7% |
| Alliant Power Pro 2000-MR | <<locked>> | 90% | 57,508 psi | 88% | 3609 fps | 99.2% |
| Alliant Reloder- TS 15.5 | <<locked>> | 94% | 58,552 psi | 90% | 3504 fps | 99.9% |
| Alliant Reloder-10x | <<locked>> | 82% | 57,435 psi | 88% | 3396 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 90% | 55,666 psi | 86% | 3468 fps | 99% |
| Alliant Reloder-16ᴾ | <<locked>> | 100% | 54,723 psi | 84% | 3524 fps | 98.7% |
| Alliant Reloder-17 | <<locked>> | 96% | 56,521 psi | 87% | 3576 fps | 99.8% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 39,320 psi | 60% | 3182 fps | 96.5% |
| Baschieri & Pellagri 107 | <<locked>> | 88% | 57,580 psi | 89% | 3491 fps | 98.9% |
| Bofors RP3 | <<locked>> | 92% | 55,999 psi | 86% | 3465 fps | 99.8% |
| Hodgdon Benchmark | <<locked>> | 86% | 58,059 psi | 89% | 3419 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 86% | 55,956 psi | 86% | 3458 fps | 100% |
| Hodgdon CFE223 | <<locked>> | 84% | 58,044 psi | 89% | 3570 fps | 99.3% |
| Hodgdon H322 | <<locked>> | 82% | 56,681 psi | 87% | 3435 fps | 100% |
| Hodgdon H335 | <<locked>> | 82% | 58,305 psi | 90% | 3458 fps | 100% |
| Hodgdon H380 | <<locked>> | 92% | 56,797 psi | 87% | 3468 fps | 98.3% |
| Hodgdon H414 | <<locked>> | 98% | 56,739 psi | 87% | 3510 fps | 96.3% |
| Hodgdon H4895 | <<locked>> | 88% | 57,957 psi | 89% | 3497 fps | 99.7% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 50,908 psi | 78% | 3379 fps | 99.1% |
| Hodgdon LEVERevolution | <<locked>> | 90% | 57,682 psi | 89% | 3527 fps | 99.9% |
| Hodgdon Superformance | <<locked>> | 98% | 57,972 psi | 89% | 3550 fps | 96.1% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,288 psi | 54% | 2195 fps | 100% |
| Hodgdon VARGET | <<locked>> | 88% | 55,898 psi | 86% | 3442 fps | 99.6% |
| IMR 3031 | <<locked>> | 88% | 57,957 psi | 89% | 3491 fps | 100% |
| IMR 4064 | <<locked>> | 92% | 58,030 psi | 89% | 3461 fps | 99.3% |
| IMR 4166 Enduron | <<locked>> | 90% | 58,088 psi | 89% | 3432 fps | 96.4% |
| IMR 4198 | <<locked>> | 82% | 56,985 psi | 88% | 3350 fps | 100% |
| IMR 4451 Enduron | <<locked>> | 96% | 57,812 psi | 89% | 3451 fps | 96.3% |
| IMR 4831ᴾ | <<locked>> | 100% | 54,317 psi | 84% | 3448 fps | 98.4% |
| IMR 4895 | <<locked>> | 90% | 57,072 psi | 88% | 3504 fps | 99.5% |
| IMR 8208 XBR | <<locked>> | 86% | 56,217 psi | 86% | 3428 fps | 99.8% |
| Lovex D073.5 | <<locked>> | 82% | 56,768 psi | 87% | 3415 fps | 100% |
| Lovex D073.6 | <<locked>> | 88% | 57,522 psi | 88% | 3458 fps | 100% |
| Lovex S060 | <<locked>> | 88% | 56,753 psi | 87% | 3402 fps | 99.4% |
| Lovex S062 | <<locked>> | 92% | 57,812 psi | 89% | 3458 fps | 99.9% |
| Lovex S065 | <<locked>> | 98% | 57,145 psi | 88% | 3438 fps | 97.6% |
| Lovex S070ᴾ | <<locked>> | 100% | 58,320 psi | 90% | 3478 fps | 96.8% |
| Norma 201 | <<locked>> | 88% | 56,130 psi | 86% | 3422 fps | 99.9% |
| Norma 202 | <<locked>> | 88% | 56,710 psi | 87% | 3432 fps | 100% |
| Norma 203B | <<locked>> | 92% | 58,581 psi | 90% | 3514 fps | 99.6% |
| Norma URPᴾ | <<locked>> | 100% | 56,246 psi | 87% | 3504 fps | 98.6% |
| Ramshot Big Game | <<locked>> | 90% | 55,564 psi | 85% | 3471 fps | 99.2% |
| Ramshot Hunterᴾ | <<locked>> | 100% | 55,434 psi | 85% | 3491 fps | 97% |
| Ramshot TAC | <<locked>> | 86% | 57,058 psi | 88% | 3438 fps | 97.8% |
| Ramshot Wild Boar | <<locked>> | 86% | 56,608 psi | 87% | 3461 fps | 99.4% |
| Ramshot X-Terminator | <<locked>> | 84% | 57,508 psi | 88% | 3428 fps | 99.4% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 35,534 psi | 55% | 2241 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 82% | 55,564 psi | 85% | 3412 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 92% | 57,116 psi | 88% | 3442 fps | 96.9% |
| ReloadSwiss RS 52 | <<locked>> | 88% | 56,115 psi | 86% | 3543 fps | 99% |
| ReloadSwiss RS 60 | <<locked>> | 94% | 55,927 psi | 86% | 3576 fps | 100% |
| ReloadSwiss RS 62ᴾ | <<locked>> | 100% | 57,566 psi | 89% | 3547 fps | 98.6% |
| ReloadSwiss RS 70ᴾ | <<locked>> | 100% | 57,246 psi | 88% | 3573 fps | 98.3% |
| Rottweil R 901 | <<locked>> | 86% | 56,768 psi | 87% | 3412 fps | 100% |
| Rottweil R 902 | <<locked>> | 90% | 56,594 psi | 87% | 3419 fps | 99.9% |
| Rottweil R 903 | <<locked>> | 94% | 55,550 psi | 85% | 3445 fps | 99.6% |
| Shooters World Long Rifle | <<locked>> | 98% | 57,145 psi | 88% | 3438 fps | 97.6% |
| Shooters World Match Rifle | <<locked>> | 88% | 57,522 psi | 88% | 3458 fps | 100% |
| Shooters World Precision | <<locked>> | 92% | 57,812 psi | 89% | 3458 fps | 99.9% |
| Shooters World SW4350ᴾ | <<locked>> | 100% | 58,320 psi | 90% | 3478 fps | 96.8% |
| SNPE Vectan SP 11 | <<locked>> | 94% | 57,580 psi | 89% | 3514 fps | 99.5% |
| SNPE Vectan SP 3 | <<locked>> | 82% | 58,363 psi | 90% | 3425 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 86% | 55,361 psi | 85% | 3409 fps | 97.9% |
| SNPE Vectan SP 9 | <<locked>> | 88% | 55,999 psi | 86% | 3445 fps | 99.3% |
| SNPE Vectan Tubal 3000 | <<locked>> | 88% | 57,508 psi | 88% | 3366 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 94% | 57,841 psi | 89% | 3353 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 98% | 57,928 psi | 89% | 3389 fps | 96.4% |
| Somchem S321 | <<locked>> | 84% | 57,928 psi | 89% | 3465 fps | 100% |
| Somchem S335 | <<locked>> | 88% | 56,956 psi | 88% | 3360 fps | 100% |
| Somchem S341 | <<locked>> | 88% | 58,755 psi | 90% | 3465 fps | 99.5% |
| Somchem S355 | <<locked>> | 94% | 55,782 psi | 86% | 3445 fps | 99.6% |
| Somchem S365ᴾ | <<locked>> | 100% | 50,546 psi | 78% | 3442 fps | 99.8% |
| Vihtavuori N130 | <<locked>> | 84% | 57,072 psi | 88% | 3330 fps | 100% |
| Vihtavuori N133 | <<locked>> | 88% | 57,653 psi | 89% | 3350 fps | 100% |
| Vihtavuori N135 | <<locked>> | 90% | 56,144 psi | 86% | 3389 fps | 100% |
| Vihtavuori N140 | <<locked>> | 90% | 57,261 psi | 88% | 3402 fps | 100% |
| Vihtavuori N150 | <<locked>> | 96% | 57,609 psi | 89% | 3425 fps | 100% |
| Vihtavuori N160 | <<locked>> | 98% | 55,288 psi | 85% | 3442 fps | 98.3% |
| Vihtavuori N530 | <<locked>> | 86% | 57,000 psi | 88% | 3432 fps | 99.9% |
| Vihtavuori N540 | <<locked>> | 90% | 55,535 psi | 85% | 3389 fps | 100% |
| Vihtavuori N550ᴾ | <<locked>> | 100% | 58,073 psi | 89% | 3507 fps | 98.6% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 42,931 psi | 66% | 3274 fps | 96.5% |
| Winchester 6.5 StaBALL | <<locked>> | 98% | 56,173 psi | 86% | 3422 fps | 99.8% |
| Winchester 748 | <<locked>> | 86% | 57,043 psi | 88% | 3481 fps | 100% |
| Winchester 760 | <<locked>> | 98% | 56,739 psi | 87% | 3510 fps | 96.3% |
| Winchester StaBALL Match | <<locked>> | 88% | 55,941 psi | 86% | 3451 fps | 99.6% |
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% | 48,124 psi | 74% | 3219 fps | 100% |
| Accurate 2460 | <<locked>> | 80% | 53,084 psi | 82% | 3343 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 40,857 psi | 63% | 3107 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 48,138 psi | 74% | 3284 fps | 99.9% |
| Accurate 4064 | <<locked>> | 80% | 38,609 psi | 59% | 3087 fps | 99.3% |
| Accurate 4350 | <<locked>> | 92% | 43,366 psi | 67% | 3245 fps | 95.8% |
| ADI AR 2206H | <<locked>> | 80% | 44,338 psi | 68% | 3222 fps | 97.4% |
| ADI AR 2208 | <<locked>> | 82% | 40,234 psi | 62% | 3100 fps | 95.5% |
| ADI Benchmark 8208 | <<locked>> | 80% | 46,383 psi | 71% | 3241 fps | 98.8% |
| Alliant AR-Comp | <<locked>> | 80% | 46,615 psi | 72% | 3248 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 80% | 54,302 psi | 84% | 3494 fps | 99.4% |
| Alliant Power Pro 2000-MR | 50 gr | 80% | 40,509 psi | 62% | 3228 fps | 95.1% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 37,420 psi | 58% | 3061 fps | 96.3% |
| Alliant Reloder-10x | <<locked>> | 80% | 53,983 psi | 83% | 3340 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 80% | 40,074 psi | 62% | 3133 fps | 95.6% |
| Alliant Reloder-16 | <<locked>> | 92% | 42,583 psi | 66% | 3255 fps | 95.8% |
| Alliant Reloder-17 | 51.7 gr | 84% | 37,188 psi | 57% | 3136 fps | 95.6% |
| Alliant Reloder-23 | <<locked>> | 98% | 36,796 psi | 57% | 3110 fps | 95.4% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 43,801 psi | 67% | 3215 fps | 96.1% |
| Bofors RP3 | <<locked>> | 80% | 36,970 psi | 57% | 3054 fps | 96.3% |
| Hodgdon Benchmark | <<locked>> | 80% | 48,138 psi | 74% | 3238 fps | 99.4% |
| Hodgdon BL-C2 | <<locked>> | 80% | 45,571 psi | 70% | 3258 fps | 99.1% |
| Hodgdon CFE223 | <<locked>> | 80% | 50,386 psi | 78% | 3428 fps | 98.2% |
| Hodgdon H322 | <<locked>> | 80% | 53,243 psi | 82% | 3376 fps | 100% |
| Hodgdon H335 | <<locked>> | 80% | 54,273 psi | 83% | 3392 fps | 100% |
| Hodgdon H380 | <<locked>> | 84% | 43,337 psi | 67% | 3196 fps | 95.2% |
| Hodgdon H414 | <<locked>> | 96% | 52,997 psi | 82% | 3442 fps | 95.4% |
| Hodgdon H4895 | <<locked>> | 80% | 44,773 psi | 69% | 3235 fps | 98% |
| Hodgdon Hybrid 100V | <<locked>> | 90% | 36,724 psi | 56% | 3058 fps | 95.6% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 40,872 psi | 63% | 3189 fps | 97.5% |
| Hodgdon Superformance | <<locked>> | 96% | 53,824 psi | 83% | 3474 fps | 95.1% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,136 psi | 40% | 1969 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 43,076 psi | 66% | 3182 fps | 97.6% |
| IMR 3031 | <<locked>> | 80% | 44,222 psi | 68% | 3245 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 39,450 psi | 61% | 3077 fps | 95.5% |
| IMR 4166 Enduron | <<locked>> | 88% | 54,462 psi | 84% | 3366 fps | 95.7% |
| IMR 4198 | <<locked>> | 80% | 53,824 psi | 83% | 3301 fps | 100% |
| IMR 4451 Enduron | <<locked>> | 94% | 54,491 psi | 84% | 3389 fps | 95.6% |
| IMR 4831 | <<locked>> | 92% | 41,437 psi | 64% | 3182 fps | 95.3% |
| IMR 4895 | <<locked>> | 80% | 41,060 psi | 63% | 3169 fps | 96.5% |
| IMR 8208 XBR | <<locked>> | 80% | 46,383 psi | 71% | 3241 fps | 98.8% |
| Lovex D073.5 | <<locked>> | 80% | 52,794 psi | 81% | 3346 fps | 99.9% |
| Lovex D073.6 | <<locked>> | 80% | 43,758 psi | 67% | 3202 fps | 99.5% |
| Lovex S060 | <<locked>> | 80% | 44,498 psi | 68% | 3159 fps | 97.5% |
| Lovex S062 | <<locked>> | 80% | 39,624 psi | 61% | 3087 fps | 97.5% |
| Lovex S065 | <<locked>> | 92% | 47,485 psi | 73% | 3251 fps | 95.4% |
| Lovex S070 | <<locked>> | 96% | 51,387 psi | 79% | 3350 fps | 95.2% |
| Norma 201 | <<locked>> | 80% | 43,439 psi | 67% | 3173 fps | 98.4% |
| Norma 202 | <<locked>> | 80% | 43,888 psi | 68% | 3189 fps | 99.7% |
| Norma 203B | <<locked>> | 80% | 39,465 psi | 61% | 3117 fps | 96% |
| Norma URP | <<locked>> | 92% | 43,178 psi | 66% | 3241 fps | 95.6% |
| Ramshot Big Game | <<locked>> | 80% | 39,218 psi | 60% | 3127 fps | 95.7% |
| Ramshot Hunter | <<locked>> | 96% | 48,240 psi | 74% | 3350 fps | 95.2% |
| Ramshot TAC | <<locked>> | 80% | 46,630 psi | 72% | 3235 fps | 95.4% |
| Ramshot Wild Boar | <<locked>> | 80% | 45,992 psi | 71% | 3258 fps | 97.7% |
| Ramshot X-Terminator | <<locked>> | 80% | 50,386 psi | 78% | 3297 fps | 98.5% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 26,426 psi | 41% | 2011 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 51,996 psi | 80% | 3350 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 88% | 50,154 psi | 77% | 3310 fps | 95.3% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 42,293 psi | 65% | 3255 fps | 96.1% |
| ReloadSwiss RS 60 | 49.2 gr | 80% | 34,418 psi | 53% | 3074 fps | 97.1% |
| ReloadSwiss RS 62 | <<locked>> | 92% | 43,004 psi | 66% | 3258 fps | 95.4% |
| ReloadSwiss RS 70 | <<locked>> | 94% | 46,209 psi | 71% | 3343 fps | 95.6% |
| Rottweil R 901 | <<locked>> | 80% | 47,384 psi | 73% | 3241 fps | 99.9% |
| Rottweil R 902 | <<locked>> | 80% | 41,263 psi | 63% | 3110 fps | 97.9% |
| Rottweil R 903 | <<locked>> | 80% | 34,722 psi | 53% | 2986 fps | 95.1% |
| Shooters World Long Rifle | <<locked>> | 92% | 47,485 psi | 73% | 3251 fps | 95.4% |
| Shooters World Match Rifle | <<locked>> | 80% | 43,758 psi | 67% | 3202 fps | 99.5% |
| Shooters World Precision | <<locked>> | 80% | 39,624 psi | 61% | 3087 fps | 97.5% |
| Shooters World SW4350 | <<locked>> | 96% | 51,387 psi | 79% | 3350 fps | 95.2% |
| SNPE Vectan SP 11 | <<locked>> | 82% | 38,421 psi | 59% | 3114 fps | 95.5% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 54,781 psi | 84% | 3369 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 44,788 psi | 69% | 3196 fps | 95.5% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 43,091 psi | 66% | 3182 fps | 97.1% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 44,788 psi | 69% | 3136 fps | 99.8% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 37,275 psi | 57% | 2966 fps | 99.5% |
| SNPE Vectan Tubal 7000 | <<locked>> | 96% | 54,070 psi | 83% | 3320 fps | 95.6% |
| Somchem S321 | <<locked>> | 80% | 50,560 psi | 78% | 3337 fps | 99.6% |
| Somchem S335 | <<locked>> | 80% | 44,440 psi | 68% | 3133 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 44,599 psi | 69% | 3199 fps | 97.4% |
| Somchem S355 | <<locked>> | 80% | 35,592 psi | 55% | 3002 fps | 95.2% |
| Somchem S365 | <<locked>> | 88% | 33,620 psi | 52% | 3035 fps | 95.9% |
| Vihtavuori N130 | <<locked>> | 80% | 50,560 psi | 78% | 3225 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 45,107 psi | 69% | 3136 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 40,770 psi | 63% | 3110 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 41,437 psi | 64% | 3107 fps | 99.7% |
| Vihtavuori N150 | <<locked>> | 80% | 33,866 psi | 52% | 2927 fps | 96.2% |
| Vihtavuori N160 | <<locked>> | 90% | 42,221 psi | 65% | 3179 fps | 95.3% |
| Vihtavuori N530 | <<locked>> | 80% | 46,514 psi | 72% | 3235 fps | 98.9% |
| Vihtavuori N540 | <<locked>> | 80% | 39,943 psi | 61% | 3084 fps | 99.2% |
| Vihtavuori N550 | <<locked>> | 92% | 44,411 psi | 68% | 3238 fps | 95.8% |
| Vihtavuori N555 | <<locked>> | 98% | 40,248 psi | 62% | 3212 fps | 95.6% |
| Winchester 6.5 StaBALL | <<locked>> | 86% | 37,115 psi | 57% | 3022 fps | 96% |
| Winchester 748 | <<locked>> | 80% | 46,296 psi | 71% | 3284 fps | 99.4% |
| Winchester 760 | <<locked>> | 96% | 52,997 psi | 82% | 3442 fps | 95.4% |
| Winchester StaBALL Match | <<locked>> | 80% | 42,598 psi | 66% | 3182 fps | 97.5% |
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 110 powders for 6.5-06 A-Square loaded with the .264 | 85gr | Hammer Hunter. Alliant Power Pro 2000-MR delivers the highest muzzle velocity at 3,609 fps; across all powders the maximum-charge window runs from 2,195 fps to 3,609 fps. Accurate 3100 gives the best case fill at 100 %, and 110 of the 110 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 85.0 gr projectile in 0.264" calls for a 1:11.5 twist; slower twists will usually not stabilise this weight. Accurate 3100, Accurate 4350, ADI AR 2209 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, Alliant Reloder-17, Alliant Power Pro 2000-MR rank at the top here: for 6.5-06 A-Square with the .264 | 85gr | Hammer Hunter they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, Accurate 3100, ADI AR 2209, Alliant Reloder-19 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.