Load Specifications
Load data in caliber 6.5 Creedmoor with .264 | 125gr | Nosler Partition bullet and 97 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Hodgdon H4350, Alliant Power Pro 2000-MR and Hodgdon Superformance.
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: 24"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2015 | <<locked>> | 84% | 55,332 psi | 88% | 2707 fps | 100% |
| Accurate 2495 | <<locked>> | 88% | 54,186 psi | 86% | 2736 fps | 100% |
| Accurate 2520 | <<locked>> | 84% | 55,912 psi | 89% | 2799 fps | 100% |
| Accurate 2700 | <<locked>> | 90% | 56,942 psi | 90% | 2785 fps | 97.4% |
| Accurate 3100ᴾ | <<locked>> | 100% | 41,118 psi | 65% | 2625 fps | 95.9% |
| Accurate 4064 | <<locked>> | 90% | 53,882 psi | 85% | 2779 fps | 100% |
| Accurate 4350 | <<locked>> | 98% | 53,737 psi | 85% | 2861 fps | 99.6% |
| ADI AR 2206H | <<locked>> | 86% | 54,331 psi | 86% | 2808 fps | 99.9% |
| ADI AR 2208 | <<locked>> | 92% | 55,419 psi | 88% | 2808 fps | 99.8% |
| ADI Benchmark 8208 | <<locked>> | 86% | 56,782 psi | 90% | 2808 fps | 100% |
| Alliant AR-Comp | <<locked>> | 84% | 54,215 psi | 86% | 2736 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 88% | 54,027 psi | 86% | 2927 fps | 99.8% |
| Alliant Reloder- TS 15.5 | <<locked>> | 92% | 55,317 psi | 88% | 2828 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 90% | 55,956 psi | 89% | 2851 fps | 99.9% |
| Alliant Reloder-16ᴾ | <<locked>> | 100% | 54,897 psi | 87% | 2917 fps | 99.9% |
| Alliant Reloder-17 | <<locked>> | 96% | 56,347 psi | 89% | 2956 fps | 100% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 39,305 psi | 62% | 2654 fps | 98.8% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 43,859 psi | 70% | 2812 fps | 98.1% |
| Baschieri & Pellagri 107 | <<locked>> | 86% | 54,389 psi | 86% | 2828 fps | 99.7% |
| Bofors RP3 | <<locked>> | 92% | 56,318 psi | 89% | 2851 fps | 100% |
| Bofors RP7 | <<locked>> | 96% | 56,144 psi | 89% | 2818 fps | 97.5% |
| Hodgdon Benchmark | <<locked>> | 84% | 55,288 psi | 88% | 2746 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 86% | 56,231 psi | 89% | 2838 fps | 100% |
| Hodgdon CFE223 | <<locked>> | 82% | 54,824 psi | 87% | 2890 fps | 99.9% |
| Hodgdon H380 | <<locked>> | 90% | 53,577 psi | 85% | 2808 fps | 99.3% |
| Hodgdon H414 | <<locked>> | 98% | 56,550 psi | 90% | 2910 fps | 98.3% |
| Hodgdon H4350 | <<locked>> | 94% | 53,954 psi | 86% | 2822 fps | 96.5% |
| Hodgdon H4895 | <<locked>> | 86% | 54,853 psi | 87% | 2818 fps | 100% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 51,140 psi | 81% | 2792 fps | 100% |
| Hodgdon LEVERevolution | <<locked>> | 88% | 54,462 psi | 86% | 2854 fps | 100% |
| Hodgdon Superformance | <<locked>> | 96% | 53,345 psi | 85% | 2887 fps | 97.3% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,462 psi | 56% | 1709 fps | 100% |
| Hodgdon VARGET | <<locked>> | 88% | 56,231 psi | 89% | 2822 fps | 100% |
| IMR 3031 | <<locked>> | 86% | 54,853 psi | 87% | 2799 fps | 100% |
| IMR 4064 | <<locked>> | 90% | 54,824 psi | 87% | 2789 fps | 99.9% |
| IMR 4166 Enduron | <<locked>> | 88% | 54,911 psi | 87% | 2772 fps | 97.8% |
| IMR 4350ᴾ | <<locked>> | 100% | 56,246 psi | 89% | 2841 fps | 97.6% |
| IMR 4451 Enduron | <<locked>> | 94% | 54,650 psi | 87% | 2795 fps | 97.7% |
| IMR 4831ᴾ | <<locked>> | 100% | 54,288 psi | 86% | 2851 fps | 99.7% |
| IMR 4895 | <<locked>> | 88% | 53,911 psi | 85% | 2831 fps | 100% |
| IMR 8208 XBR | <<locked>> | 86% | 56,782 psi | 90% | 2808 fps | 100% |
| Lovex D073.6 | <<locked>> | 86% | 54,215 psi | 86% | 2785 fps | 100% |
| Lovex S060 | <<locked>> | 86% | 54,056 psi | 86% | 2740 fps | 99.9% |
| Lovex S062 | <<locked>> | 90% | 54,708 psi | 87% | 2789 fps | 100% |
| Lovex S065 | <<locked>> | 96% | 54,143 psi | 86% | 2792 fps | 98.8% |
| Lovex S070 | <<locked>> | 98% | 54,853 psi | 87% | 2825 fps | 98.1% |
| Norma 201 | <<locked>> | 88% | 56,739 psi | 90% | 2808 fps | 100% |
| Norma 202 | <<locked>> | 86% | 53,737 psi | 85% | 2759 fps | 100% |
| Norma 203B | <<locked>> | 90% | 55,201 psi | 87% | 2838 fps | 100% |
| Norma 204ᴾ | <<locked>> | 100% | 57,087 psi | 90% | 2894 fps | 96.5% |
| Norma URPᴾ | <<locked>> | 100% | 56,347 psi | 89% | 2900 fps | 99.7% |
| Ramshot Big Game | <<locked>> | 90% | 55,695 psi | 88% | 2864 fps | 100% |
| Ramshot Hunterᴾ | <<locked>> | 100% | 55,013 psi | 87% | 2894 fps | 98.7% |
| Ramshot TAC | <<locked>> | 84% | 53,751 psi | 85% | 2779 fps | 98.9% |
| Ramshot Wild Boar | <<locked>> | 86% | 57,087 psi | 90% | 2851 fps | 100% |
| Ramshot X-Terminator | <<locked>> | 82% | 54,215 psi | 86% | 2762 fps | 99.9% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 35,984 psi | 57% | 1752 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 82% | 56,463 psi | 89% | 2792 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 90% | 53,708 psi | 85% | 2789 fps | 98.2% |
| ReloadSwiss RS 52 | <<locked>> | 88% | 56,623 psi | 90% | 2920 fps | 99.9% |
| ReloadSwiss RS 60 | <<locked>> | 94% | 56,275 psi | 89% | 2956 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 98% | 53,417 psi | 85% | 2884 fps | 99.4% |
| ReloadSwiss RS 70ᴾ | <<locked>> | 100% | 56,855 psi | 90% | 2969 fps | 99.6% |
| Rottweil R 901 | <<locked>> | 84% | 54,418 psi | 86% | 2740 fps | 100% |
| Rottweil R 902 | <<locked>> | 88% | 53,708 psi | 85% | 2756 fps | 100% |
| Rottweil R 903 | <<locked>> | 94% | 55,782 psi | 88% | 2835 fps | 100% |
| Rottweil R 907 | <<locked>> | 96% | 56,144 psi | 89% | 2818 fps | 97.5% |
| Shooters World Long Rifle | <<locked>> | 96% | 54,143 psi | 86% | 2792 fps | 98.8% |
| Shooters World Match Rifle | <<locked>> | 86% | 54,215 psi | 86% | 2785 fps | 100% |
| Shooters World Precision | <<locked>> | 90% | 54,708 psi | 87% | 2789 fps | 100% |
| Shooters World SW4350 | <<locked>> | 98% | 54,853 psi | 87% | 2825 fps | 98.1% |
| SNPE Vectan SP 11 | <<locked>> | 92% | 53,954 psi | 86% | 2844 fps | 99.9% |
| SNPE Vectan SP 7 | <<locked>> | 86% | 55,651 psi | 88% | 2808 fps | 99.4% |
| SNPE Vectan SP 9 | <<locked>> | 88% | 56,333 psi | 89% | 2831 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 86% | 54,969 psi | 87% | 2700 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 92% | 55,013 psi | 87% | 2697 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 96% | 54,375 psi | 86% | 2746 fps | 97.7% |
| Somchem S321 | <<locked>> | 82% | 54,476 psi | 86% | 2792 fps | 100% |
| Somchem S335 | <<locked>> | 86% | 54,114 psi | 86% | 2697 fps | 100% |
| Somchem S341 | <<locked>> | 86% | 55,477 psi | 88% | 2805 fps | 100% |
| Somchem S355 | <<locked>> | 94% | 56,289 psi | 89% | 2838 fps | 100% |
| Somchem S365ᴾ | <<locked>> | 100% | 50,531 psi | 80% | 2848 fps | 100% |
| Vihtavuori N130 | <<locked>> | 82% | 54,650 psi | 87% | 2661 fps | 100% |
| Vihtavuori N133 | <<locked>> | 86% | 55,216 psi | 88% | 2684 fps | 100% |
| Vihtavuori N135 | <<locked>> | 90% | 56,739 psi | 90% | 2762 fps | 100% |
| Vihtavuori N140 | <<locked>> | 88% | 54,259 psi | 86% | 2736 fps | 100% |
| Vihtavuori N150 | <<locked>> | 94% | 54,041 psi | 86% | 2762 fps | 100% |
| Vihtavuori N160 | <<locked>> | 98% | 55,390 psi | 88% | 2844 fps | 99.6% |
| Vihtavuori N530 | <<locked>> | 84% | 54,099 psi | 86% | 2766 fps | 100% |
| Vihtavuori N540 | <<locked>> | 90% | 55,898 psi | 89% | 2782 fps | 100% |
| Vihtavuori N550 | <<locked>> | 98% | 54,215 psi | 86% | 2848 fps | 99.4% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 43,047 psi | 68% | 2730 fps | 98.7% |
| Winchester 6.5 StaBALL | <<locked>> | 98% | 55,680 psi | 88% | 2825 fps | 100% |
| Winchester 748 | <<locked>> | 84% | 53,838 psi | 85% | 2808 fps | 100% |
| Winchester 760 | <<locked>> | 98% | 56,956 psi | 90% | 2917 fps | 98.3% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 35,114 psi | 56% | 2654 fps | 98.6% |
| Winchester StaBALL Match | <<locked>> | 88% | 56,463 psi | 89% | 2844 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% | 48,936 psi | 78% | 2618 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 41,742 psi | 66% | 2549 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 48,718 psi | 77% | 2697 fps | 100% |
| Accurate 2700 | <<locked>> | 84% | 46,775 psi | 74% | 2621 fps | 95.3% |
| Accurate 3100 | <<locked>> | 98% | 38,377 psi | 61% | 2572 fps | 95% |
| Accurate 4064 | <<locked>> | 80% | 39,465 psi | 63% | 2546 fps | 100% |
| Accurate 4350 | <<locked>> | 84% | 33,011 psi | 52% | 2467 fps | 95.1% |
| ADI AR 2206H | <<locked>> | 80% | 45,237 psi | 72% | 2657 fps | 99.3% |
| ADI AR 2208 | <<locked>> | 80% | 38,334 psi | 61% | 2507 fps | 97.4% |
| ADI Benchmark 8208 | <<locked>> | 80% | 47,297 psi | 75% | 2664 fps | 99.9% |
| Alliant AR-Comp | <<locked>> | 80% | 47,601 psi | 75% | 2644 fps | 100% |
| Alliant Power Pro 2000-MR | 38 gr | 80% | 41,060 psi | 65% | 2684 fps | 98% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 38,087 psi | 60% | 2530 fps | 98.8% |
| Alliant Reloder-15 | <<locked>> | 80% | 40,930 psi | 65% | 2592 fps | 98.2% |
| Alliant Reloder-16 | <<locked>> | 84% | 33,591 psi | 53% | 2487 fps | 95.3% |
| Alliant Reloder-17 | <<locked>> | 80% | 32,808 psi | 52% | 2497 fps | 96.9% |
| Alliant Reloder-23 | <<locked>> | 92% | 30,734 psi | 49% | 2441 fps | 95.8% |
| Alliant Reloder-26 | <<locked>> | 94% | 35,462 psi | 56% | 2618 fps | 95.2% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 44,396 psi | 70% | 2661 fps | 98.4% |
| Bofors RP3 | <<locked>> | 80% | 37,594 psi | 60% | 2530 fps | 98.8% |
| Bofors RP7 | <<locked>> | 90% | 46,702 psi | 74% | 2661 fps | 95.6% |
| Hodgdon Benchmark | <<locked>> | 80% | 48,805 psi | 77% | 2648 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 80% | 46,137 psi | 73% | 2687 fps | 100% |
| Hodgdon CFE223 | <<locked>> | 80% | 51,024 psi | 81% | 2831 fps | 99.7% |
| Hodgdon H380 | <<locked>> | 80% | 38,406 psi | 61% | 2533 fps | 96.4% |
| Hodgdon H414 | <<locked>> | 90% | 43,569 psi | 69% | 2690 fps | 95.5% |
| Hodgdon H4350 | 40.6 gr | 90% | 47,529 psi | 75% | 2713 fps | 95% |
| Hodgdon H4895 | <<locked>> | 80% | 45,672 psi | 72% | 2667 fps | 99.6% |
| Hodgdon Hybrid 100V | <<locked>> | 82% | 28,950 psi | 46% | 2336 fps | 95.3% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 41,669 psi | 66% | 2641 fps | 99.4% |
| Hodgdon Superformance | 45.5 gr | 92% | 46,543 psi | 74% | 2769 fps | 95.7% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,411 psi | 42% | 1529 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 43,526 psi | 69% | 2615 fps | 99.3% |
| IMR 3031 | <<locked>> | 80% | 45,411 psi | 72% | 2661 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 40,248 psi | 64% | 2539 fps | 98.1% |
| IMR 4166 Enduron | <<locked>> | 80% | 42,743 psi | 68% | 2559 fps | 95.1% |
| IMR 4350 | <<locked>> | 94% | 46,847 psi | 74% | 2687 fps | 95.7% |
| IMR 4451 Enduron | <<locked>> | 86% | 42,902 psi | 68% | 2592 fps | 95% |
| IMR 4831 | <<locked>> | 86% | 34,418 psi | 55% | 2487 fps | 95.8% |
| IMR 4895 | <<locked>> | 80% | 41,916 psi | 66% | 2625 fps | 98.9% |
| IMR 8208 XBR | <<locked>> | 80% | 47,297 psi | 75% | 2664 fps | 99.9% |
| Lovex D073.6 | <<locked>> | 80% | 44,208 psi | 70% | 2635 fps | 100% |
| Lovex S060 | <<locked>> | 80% | 45,107 psi | 71% | 2592 fps | 99.3% |
| Lovex S062 | <<locked>> | 80% | 40,248 psi | 64% | 2543 fps | 99.4% |
| Lovex S065 | <<locked>> | 84% | 37,347 psi | 59% | 2484 fps | 95% |
| Lovex S070 | <<locked>> | 90% | 42,844 psi | 68% | 2618 fps | 95.5% |
| Norma 201 | <<locked>> | 80% | 44,280 psi | 70% | 2608 fps | 99.8% |
| Norma 202 | <<locked>> | 80% | 44,585 psi | 71% | 2615 fps | 100% |
| Norma 203B | <<locked>> | 80% | 40,350 psi | 64% | 2582 fps | 98.6% |
| Norma 204 | <<locked>> | 98% | 53,447 psi | 85% | 2835 fps | 95.8% |
| Norma URP | <<locked>> | 84% | 33,431 psi | 53% | 2470 fps | 95.1% |
| Ramshot Big Game | <<locked>> | 80% | 39,784 psi | 63% | 2595 fps | 98.3% |
| Ramshot Hunter | <<locked>> | 90% | 39,740 psi | 63% | 2618 fps | 95.3% |
| Ramshot TAC | <<locked>> | 80% | 47,239 psi | 75% | 2671 fps | 97.8% |
| Ramshot Wild Boar | <<locked>> | 80% | 46,601 psi | 74% | 2687 fps | 99.4% |
| Ramshot X-Terminator | <<locked>> | 80% | 50,995 psi | 81% | 2713 fps | 99.7% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 26,687 psi | 42% | 1562 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 53,011 psi | 84% | 2743 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 82% | 41,481 psi | 66% | 2572 fps | 95.5% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 42,917 psi | 68% | 2694 fps | 98.6% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 34,911 psi | 55% | 2562 fps | 99.5% |
| ReloadSwiss RS 62 | <<locked>> | 86% | 35,288 psi | 56% | 2543 fps | 95.6% |
| ReloadSwiss RS 70 | <<locked>> | 88% | 37,826 psi | 60% | 2608 fps | 95.6% |
| Rottweil R 901 | <<locked>> | 80% | 48,283 psi | 77% | 2648 fps | 100% |
| Rottweil R 902 | <<locked>> | 80% | 42,163 psi | 67% | 2562 fps | 99.6% |
| Rottweil R 903 | <<locked>> | 80% | 35,563 psi | 56% | 2480 fps | 98% |
| Rottweil R 907 | <<locked>> | 90% | 46,702 psi | 74% | 2661 fps | 95.6% |
| Shooters World Long Rifle | <<locked>> | 84% | 37,347 psi | 59% | 2484 fps | 95% |
| Shooters World Match Rifle | <<locked>> | 80% | 44,208 psi | 70% | 2635 fps | 100% |
| Shooters World Precision | <<locked>> | 80% | 40,248 psi | 64% | 2543 fps | 99.4% |
| Shooters World SW4350 | <<locked>> | 90% | 42,844 psi | 68% | 2618 fps | 95.5% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 36,347 psi | 58% | 2526 fps | 97.5% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 45,556 psi | 72% | 2644 fps | 98% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 43,540 psi | 69% | 2625 fps | 99% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 45,440 psi | 72% | 2559 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 37,855 psi | 60% | 2428 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 90% | 44,657 psi | 71% | 2589 fps | 95.7% |
| Somchem S321 | <<locked>> | 80% | 51,155 psi | 81% | 2743 fps | 100% |
| Somchem S335 | <<locked>> | 80% | 45,179 psi | 72% | 2562 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 45,237 psi | 72% | 2641 fps | 99.2% |
| Somchem S355 | <<locked>> | 80% | 36,347 psi | 58% | 2484 fps | 98% |
| Somchem S365 | <<locked>> | 80% | 26,440 psi | 42% | 2316 fps | 95.6% |
| Vihtavuori N130 | <<locked>> | 80% | 51,242 psi | 81% | 2615 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 45,788 psi | 73% | 2552 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 41,553 psi | 66% | 2543 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 42,250 psi | 67% | 2552 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 34,592 psi | 55% | 2421 fps | 98.7% |
| Vihtavuori N160 | <<locked>> | 84% | 34,882 psi | 55% | 2474 fps | 95.6% |
| Vihtavuori N530 | <<locked>> | 80% | 47,152 psi | 75% | 2657 fps | 99.9% |
| Vihtavuori N540 | <<locked>> | 80% | 40,480 psi | 64% | 2539 fps | 100% |
| Vihtavuori N550 | <<locked>> | 84% | 34,577 psi | 55% | 2480 fps | 95.2% |
| Vihtavuori N555 | <<locked>> | 90% | 30,966 psi | 49% | 2461 fps | 95% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 30,661 psi | 49% | 2349 fps | 96.2% |
| Winchester 748 | <<locked>> | 80% | 46,905 psi | 74% | 2703 fps | 100% |
| Winchester 760 | <<locked>> | 90% | 43,569 psi | 69% | 2690 fps | 95.5% |
| Winchester StaBALL HD | <<locked>> | 94% | 29,109 psi | 46% | 2464 fps | 95.3% |
| Winchester StaBALL Match | <<locked>> | 80% | 43,091 psi | 68% | 2628 fps | 99.4% |
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 97 powders for 6.5 Creedmoor loaded with the .264 | 125gr | Nosler Partition. ReloadSwiss RS 70 delivers the highest muzzle velocity at 2,969 fps; across all powders the maximum-charge window runs from 1,709 fps to 2,969 fps. Accurate 3100 gives the best case fill at 100 %, and 97 of the 97 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (435 MPa), the top charges use 56–90 %, leaving at least 10 % headroom. The 125.0 gr projectile in 0.264" calls for a 1:10.5 twist; slower twists will usually not stabilise this weight. Accurate 3100, Alliant Reloder-16, Alliant Reloder-23 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 H4350, Alliant Power Pro 2000-MR, Hodgdon Superformance rank at the top here: for 6.5 Creedmoor with the .264 | 125gr | Nosler Partition 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.