Load Specifications
Load data in caliber 6.5 Creedmoor with .264 | 105gr | CutEdge Maximus bullet and 94 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 52 and ReloadSwiss RS 60.
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>> | 88% | 53,621 psi | 85% | 2936 fps | 100% |
| Accurate 2460 | <<locked>> | 86% | 55,941 psi | 89% | 3012 fps | 100% |
| Accurate 2495 | <<locked>> | 94% | 54,418 psi | 86% | 2992 fps | 100% |
| Accurate 2520 | <<locked>> | 88% | 54,012 psi | 86% | 3022 fps | 100% |
| Accurate 4064 | <<locked>> | 96% | 54,375 psi | 86% | 3038 fps | 100% |
| Accurate 4350ᴾ | <<locked>> | 100% | 46,775 psi | 74% | 2976 fps | 97.1% |
| Accurate LT-30 | <<locked>> | 82% | 53,548 psi | 85% | 2884 fps | 100% |
| Accurate LT-32 | <<locked>> | 82% | 53,940 psi | 85% | 2907 fps | 100% |
| ADI AR 2206H | <<locked>> | 92% | 56,376 psi | 89% | 3077 fps | 99.5% |
| ADI AR 2208 | <<locked>> | 96% | 53,882 psi | 85% | 3015 fps | 98.8% |
| ADI AR 2219 | <<locked>> | 82% | 54,447 psi | 86% | 3009 fps | 100% |
| ADI Benchmark 8208 | <<locked>> | 90% | 55,622 psi | 88% | 3031 fps | 99.9% |
| Alliant AR-Comp | <<locked>> | 90% | 55,535 psi | 88% | 3015 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 84% | 53,780 psi | 85% | 3094 fps | 99.5% |
| Alliant Power Pro 2000-MR | <<locked>> | 94% | 56,086 psi | 89% | 3192 fps | 99.1% |
| Alliant Reloder- TS 15.5 | <<locked>> | 98% | 56,869 psi | 90% | 3094 fps | 99.9% |
| Alliant Reloder-10x | <<locked>> | 86% | 57,072 psi | 90% | 2995 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 94% | 54,070 psi | 86% | 3061 fps | 98.9% |
| Alliant Reloder-16ᴾ | <<locked>> | 100% | 46,441 psi | 74% | 2986 fps | 97.2% |
| Alliant Reloder-17ᴾ | <<locked>> | 100% | 53,853 psi | 85% | 3153 fps | 99.6% |
| Baschieri & Pellagri 106 | <<locked>> | 84% | 56,318 psi | 89% | 2927 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 92% | 56,391 psi | 89% | 3091 fps | 98.8% |
| Bofors RP3 | <<locked>> | 96% | 53,693 psi | 85% | 3054 fps | 99.7% |
| Hodgdon Benchmark | <<locked>> | 88% | 54,288 psi | 86% | 2969 fps | 99.9% |
| Hodgdon BL-C2 | <<locked>> | 90% | 54,505 psi | 86% | 3061 fps | 100% |
| Hodgdon CFE223 | <<locked>> | 88% | 56,898 psi | 90% | 3166 fps | 99.3% |
| Hodgdon H322 | <<locked>> | 86% | 56,449 psi | 89% | 3038 fps | 100% |
| Hodgdon H335 | <<locked>> | 84% | 53,940 psi | 85% | 3009 fps | 100% |
| Hodgdon H380 | <<locked>> | 96% | 55,100 psi | 87% | 3061 fps | 98.1% |
| Hodgdon H4895 | <<locked>> | 92% | 56,869 psi | 90% | 3091 fps | 99.7% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 42,453 psi | 67% | 2861 fps | 97.7% |
| Hodgdon LEVERevolution | <<locked>> | 94% | 56,072 psi | 89% | 3123 fps | 99.9% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 34,519 psi | 55% | 1854 fps | 100% |
| Hodgdon VARGET | <<locked>> | 92% | 55,071 psi | 87% | 3041 fps | 99.6% |
| IMR 3031 | <<locked>> | 92% | 56,130 psi | 89% | 3077 fps | 100% |
| IMR 4064 | <<locked>> | 96% | 56,782 psi | 90% | 3054 fps | 99.2% |
| IMR 4198 | <<locked>> | 84% | 54,128 psi | 86% | 2910 fps | 100% |
| IMR 4451 Enduronᴾ | <<locked>> | 100% | 56,637 psi | 90% | 3045 fps | 96.1% |
| IMR 4831ᴾ | <<locked>> | 100% | 44,672 psi | 71% | 2917 fps | 96.7% |
| IMR 4895 | <<locked>> | 94% | 55,419 psi | 88% | 3097 fps | 99.4% |
| IMR 8208 XBR | <<locked>> | 90% | 55,622 psi | 88% | 3031 fps | 99.9% |
| Lovex D073.5 | <<locked>> | 86% | 55,695 psi | 88% | 3018 fps | 100% |
| Lovex D073.6 | <<locked>> | 92% | 55,782 psi | 88% | 3058 fps | 100% |
| Lovex S060 | <<locked>> | 92% | 56,579 psi | 90% | 3005 fps | 99.5% |
| Lovex S062 | <<locked>> | 96% | 56,086 psi | 89% | 3048 fps | 99.9% |
| Lovex S065ᴾ | <<locked>> | 100% | 51,924 psi | 82% | 2979 fps | 96.7% |
| Norma 200 | <<locked>> | 82% | 56,768 psi | 90% | 2966 fps | 100% |
| Norma 201 | <<locked>> | 92% | 54,781 psi | 87% | 3018 fps | 99.8% |
| Norma 202 | <<locked>> | 92% | 55,274 psi | 88% | 3028 fps | 100% |
| Norma 203B | <<locked>> | 96% | 56,797 psi | 90% | 3104 fps | 99.5% |
| Norma URPᴾ | <<locked>> | 100% | 46,760 psi | 74% | 2972 fps | 97% |
| Ramshot Big Game | <<locked>> | 94% | 53,650 psi | 85% | 3071 fps | 99.1% |
| Ramshot TAC | <<locked>> | 90% | 56,652 psi | 90% | 3048 fps | 97.7% |
| Ramshot Wild Boar | <<locked>> | 90% | 55,709 psi | 88% | 3068 fps | 99.4% |
| Ramshot X-Terminator | <<locked>> | 86% | 53,447 psi | 85% | 2979 fps | 99% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 34,824 psi | 55% | 1896 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 86% | 55,448 psi | 88% | 3022 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 96% | 55,898 psi | 89% | 3041 fps | 96.7% |
| ReloadSwiss RS 52 | <<locked>> | 92% | 54,317 psi | 86% | 3133 fps | 99% |
| ReloadSwiss RS 60 | <<locked>> | 98% | 53,882 psi | 85% | 3163 fps | 100% |
| ReloadSwiss RS 62ᴾ | <<locked>> | 100% | 46,615 psi | 74% | 2995 fps | 96.7% |
| ReloadSwiss RS 70ᴾ | <<locked>> | 100% | 47,877 psi | 76% | 3018 fps | 96.1% |
| Rottweil R 901 | <<locked>> | 90% | 55,564 psi | 88% | 3005 fps | 100% |
| Rottweil R 902 | <<locked>> | 94% | 55,230 psi | 88% | 3015 fps | 99.8% |
| Rottweil R 903ᴾ | <<locked>> | 100% | 56,942 psi | 90% | 3094 fps | 99.8% |
| Shooters World Long Rifleᴾ | <<locked>> | 100% | 51,924 psi | 82% | 2979 fps | 96.7% |
| Shooters World Match Rifle | <<locked>> | 92% | 55,782 psi | 88% | 3058 fps | 100% |
| Shooters World Precision | <<locked>> | 96% | 56,086 psi | 89% | 3048 fps | 99.9% |
| Shooters World Tactical Rifle | <<locked>> | 84% | 55,390 psi | 88% | 2989 fps | 99.7% |
| SNPE Vectan BA6 1/2 | <<locked>> | 82% | 56,782 psi | 90% | 2671 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 82% | 54,723 psi | 87% | 3018 fps | 100% |
| SNPE Vectan SP 11 | <<locked>> | 98% | 55,477 psi | 88% | 3107 fps | 99.4% |
| SNPE Vectan SP 3 | <<locked>> | 84% | 54,563 psi | 86% | 2969 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 90% | 54,172 psi | 86% | 3015 fps | 97.8% |
| SNPE Vectan SP 9 | <<locked>> | 92% | 55,100 psi | 87% | 3048 fps | 99.3% |
| SNPE Vectan Tubal 3000 | <<locked>> | 90% | 53,983 psi | 86% | 2923 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 98% | 56,971 psi | 90% | 2963 fps | 100% |
| Somchem S321 | <<locked>> | 86% | 53,577 psi | 85% | 3015 fps | 99.8% |
| Somchem S335 | <<locked>> | 92% | 56,057 psi | 89% | 2966 fps | 100% |
| Somchem S341 | <<locked>> | 90% | 54,041 psi | 86% | 3015 fps | 99.2% |
| Somchem S355 | <<locked>> | 98% | 53,737 psi | 85% | 3038 fps | 99.5% |
| Somchem S365ᴾ | <<locked>> | 100% | 41,394 psi | 66% | 2913 fps | 98.8% |
| Vihtavuori N130 | <<locked>> | 88% | 56,913 psi | 90% | 2940 fps | 100% |
| Vihtavuori N133 | <<locked>> | 90% | 53,998 psi | 86% | 2913 fps | 100% |
| Vihtavuori N135 | <<locked>> | 94% | 54,389 psi | 86% | 2989 fps | 100% |
| Vihtavuori N140 | <<locked>> | 94% | 56,289 psi | 89% | 3009 fps | 100% |
| Vihtavuori N150ᴾ | <<locked>> | 100% | 55,724 psi | 88% | 3025 fps | 100% |
| Vihtavuori N160ᴾ | <<locked>> | 100% | 49,414 psi | 78% | 2979 fps | 97.4% |
| Vihtavuori N530 | <<locked>> | 90% | 56,550 psi | 90% | 3038 fps | 99.9% |
| Vihtavuori N540 | <<locked>> | 94% | 54,215 psi | 86% | 3002 fps | 100% |
| Vihtavuori N550ᴾ | <<locked>> | 100% | 48,167 psi | 76% | 2976 fps | 97% |
| Winchester 6.5 StaBALLᴾ | <<locked>> | 100% | 50,792 psi | 81% | 2969 fps | 99.3% |
| Winchester 748 | <<locked>> | 90% | 55,782 psi | 88% | 3084 fps | 100% |
| Winchester StaBALL Match | <<locked>> | 92% | 54,520 psi | 86% | 3051 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% | 41,524 psi | 66% | 2736 fps | 100% |
| Accurate 2460 | <<locked>> | 80% | 45,498 psi | 72% | 2844 fps | 99.9% |
| Accurate 2495 | <<locked>> | 80% | 33,707 psi | 53% | 2628 fps | 99.9% |
| Accurate 2520 | <<locked>> | 80% | 40,567 psi | 64% | 2785 fps | 99.3% |
| Accurate 4064 | <<locked>> | 80% | 31,894 psi | 51% | 2602 fps | 98.3% |
| Accurate 4350 | <<locked>> | 96% | 40,379 psi | 64% | 2851 fps | 95.4% |
| Accurate LT-30 | <<locked>> | 80% | 50,488 psi | 80% | 2838 fps | 100% |
| Accurate LT-32 | <<locked>> | 80% | 50,908 psi | 81% | 2861 fps | 100% |
| ADI AR 2206H | <<locked>> | 80% | 38,363 psi | 61% | 2736 fps | 96.1% |
| ADI AR 2208 | <<locked>> | 86% | 39,450 psi | 63% | 2740 fps | 95.7% |
| ADI AR 2219 | <<locked>> | 80% | 50,473 psi | 80% | 2949 fps | 100% |
| ADI Benchmark 8208 | <<locked>> | 80% | 40,466 psi | 64% | 2756 fps | 98% |
| Alliant AR-Comp | <<locked>> | 80% | 39,421 psi | 62% | 2762 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 80% | 46,920 psi | 74% | 2969 fps | 98.7% |
| Alliant Power Pro 2000-MR | 39.8 gr | 84% | 39,740 psi | 63% | 2861 fps | 95.2% |
| Alliant Reloder- TS 15.5 | <<locked>> | 82% | 33,852 psi | 54% | 2644 fps | 95.7% |
| Alliant Reloder-10x | <<locked>> | 80% | 47,384 psi | 75% | 2851 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 84% | 39,175 psi | 62% | 2772 fps | 95.8% |
| Alliant Reloder-16 | <<locked>> | 96% | 41,046 psi | 65% | 2867 fps | 95.5% |
| Alliant Reloder-17 | <<locked>> | 88% | 35,940 psi | 57% | 2776 fps | 95.6% |
| Baschieri & Pellagri 106 | <<locked>> | 80% | 49,501 psi | 78% | 2828 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 82% | 39,914 psi | 63% | 2785 fps | 95.3% |
| Bofors RP3 | <<locked>> | 82% | 33,083 psi | 52% | 2641 fps | 95.5% |
| Hodgdon Benchmark | <<locked>> | 80% | 42,351 psi | 67% | 2756 fps | 98.8% |
| Hodgdon BL-C2 | <<locked>> | 80% | 38,551 psi | 61% | 2766 fps | 98.1% |
| Hodgdon CFE223 | <<locked>> | 80% | 42,511 psi | 67% | 2907 fps | 96.8% |
| Hodgdon H322 | <<locked>> | 80% | 46,079 psi | 73% | 2874 fps | 100% |
| Hodgdon H335 | <<locked>> | 80% | 46,963 psi | 74% | 2894 fps | 100% |
| Hodgdon H380 | <<locked>> | 88% | 42,090 psi | 67% | 2825 fps | 95.2% |
| Hodgdon H4895 | <<locked>> | 80% | 38,667 psi | 61% | 2749 fps | 96.8% |
| Hodgdon Hybrid 100V | <<locked>> | 94% | 34,896 psi | 55% | 2687 fps | 95.3% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 34,664 psi | 55% | 2703 fps | 96% |
| Hodgdon TrailBoss | <<locked>> | 80% | 25,556 psi | 41% | 1657 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 37,362 psi | 59% | 2700 fps | 96.4% |
| IMR 3031 | <<locked>> | 80% | 37,623 psi | 60% | 2759 fps | 99.9% |
| IMR 4064 | <<locked>> | 84% | 39,015 psi | 62% | 2726 fps | 95.8% |
| IMR 4198 | <<locked>> | 80% | 48,022 psi | 76% | 2818 fps | 100% |
| IMR 4451 Enduron | <<locked>> | 98% | 53,505 psi | 85% | 2995 fps | 95.4% |
| IMR 4831 | <<locked>> | 96% | 38,914 psi | 62% | 2799 fps | 95% |
| IMR 4895 | <<locked>> | 80% | 35,041 psi | 56% | 2687 fps | 95.1% |
| IMR 8208 XBR | <<locked>> | 80% | 40,466 psi | 64% | 2756 fps | 98% |
| Lovex D073.5 | <<locked>> | 80% | 45,295 psi | 72% | 2848 fps | 99.4% |
| Lovex D073.6 | <<locked>> | 80% | 36,709 psi | 58% | 2713 fps | 98.6% |
| Lovex S060 | <<locked>> | 80% | 39,030 psi | 62% | 2684 fps | 96.4% |
| Lovex S062 | <<locked>> | 80% | 33,721 psi | 53% | 2615 fps | 96.1% |
| Lovex S065 | <<locked>> | 96% | 45,919 psi | 73% | 2867 fps | 95.3% |
| Norma 200 | <<locked>> | 80% | 53,127 psi | 84% | 2913 fps | 100% |
| Norma 201 | <<locked>> | 80% | 37,362 psi | 59% | 2690 fps | 97.3% |
| Norma 202 | <<locked>> | 80% | 37,579 psi | 60% | 2710 fps | 99.2% |
| Norma 203B | <<locked>> | 82% | 35,998 psi | 57% | 2700 fps | 95.4% |
| Norma URP | <<locked>> | 96% | 40,814 psi | 65% | 2851 fps | 95.3% |
| Ramshot Big Game | <<locked>> | 84% | 38,058 psi | 60% | 2769 fps | 95.8% |
| Ramshot TAC | <<locked>> | 84% | 46,296 psi | 73% | 2867 fps | 95.6% |
| Ramshot Wild Boar | <<locked>> | 80% | 39,450 psi | 63% | 2766 fps | 96.4% |
| Ramshot X-Terminator | <<locked>> | 80% | 43,961 psi | 70% | 2808 fps | 97.5% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 25,628 psi | 41% | 1693 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 45,542 psi | 72% | 2858 fps | 99.6% |
| ReloadSwiss RS 50 | <<locked>> | 92% | 49,081 psi | 78% | 2927 fps | 95.2% |
| ReloadSwiss RS 52 | 37.7 gr | 82% | 38,029 psi | 60% | 2815 fps | 95.3% |
| ReloadSwiss RS 60 | 38.3 gr | 82% | 31,357 psi | 50% | 2657 fps | 96.2% |
| ReloadSwiss RS 62 | <<locked>> | 98% | 43,511 psi | 69% | 2936 fps | 95.9% |
| ReloadSwiss RS 70 | <<locked>> | 98% | 44,498 psi | 71% | 2949 fps | 95.1% |
| Rottweil R 901 | <<locked>> | 80% | 40,973 psi | 65% | 2749 fps | 99.5% |
| Rottweil R 902 | <<locked>> | 80% | 35,505 psi | 56% | 2638 fps | 96.7% |
| Rottweil R 903 | <<locked>> | 84% | 33,257 psi | 53% | 2638 fps | 95.2% |
| Shooters World Long Rifle | <<locked>> | 96% | 45,919 psi | 73% | 2867 fps | 95.3% |
| Shooters World Match Rifle | <<locked>> | 80% | 36,709 psi | 58% | 2713 fps | 98.6% |
| Shooters World Precision | <<locked>> | 80% | 33,721 psi | 53% | 2615 fps | 96.1% |
| Shooters World Tactical Rifle | <<locked>> | 80% | 48,153 psi | 76% | 2871 fps | 99% |
| SNPE Vectan BA6 1/2 | <<locked>> | 80% | 53,998 psi | 86% | 2635 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 80% | 50,923 psi | 81% | 2956 fps | 100% |
| SNPE Vectan SP 11 | <<locked>> | 86% | 37,086 psi | 59% | 2753 fps | 95.6% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 47,979 psi | 76% | 2867 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 84% | 44,063 psi | 70% | 2835 fps | 95.6% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 36,854 psi | 58% | 2697 fps | 95.6% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 39,059 psi | 62% | 2664 fps | 99.4% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 32,024 psi | 51% | 2513 fps | 98.8% |
| Somchem S321 | <<locked>> | 80% | 43,453 psi | 69% | 2838 fps | 98.8% |
| Somchem S335 | <<locked>> | 80% | 38,609 psi | 61% | 2667 fps | 99.7% |
| Somchem S341 | <<locked>> | 80% | 38,087 psi | 60% | 2717 fps | 95.9% |
| Somchem S355 | <<locked>> | 84% | 34,200 psi | 54% | 2644 fps | 95.3% |
| Somchem S365 | <<locked>> | 92% | 31,865 psi | 51% | 2674 fps | 95.7% |
| Vihtavuori N130 | <<locked>> | 80% | 44,367 psi | 70% | 2749 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 39,233 psi | 62% | 2667 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 34,403 psi | 55% | 2635 fps | 99.9% |
| Vihtavuori N140 | <<locked>> | 80% | 35,578 psi | 56% | 2641 fps | 99.1% |
| Vihtavuori N150 | <<locked>> | 82% | 30,603 psi | 49% | 2533 fps | 95.5% |
| Vihtavuori N160 | <<locked>> | 94% | 40,350 psi | 64% | 2802 fps | 95% |
| Vihtavuori N530 | <<locked>> | 80% | 40,393 psi | 64% | 2753 fps | 98% |
| Vihtavuori N540 | <<locked>> | 80% | 34,287 psi | 54% | 2625 fps | 98.4% |
| Vihtavuori N550 | <<locked>> | 96% | 42,177 psi | 67% | 2858 fps | 95.5% |
| Winchester 6.5 StaBALL | <<locked>> | 90% | 36,085 psi | 57% | 2671 fps | 95.9% |
| Winchester 748 | <<locked>> | 80% | 39,218 psi | 62% | 2789 fps | 98.5% |
| Winchester StaBALL Match | <<locked>> | 80% | 36,071 psi | 57% | 2697 fps | 96.1% |
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 111 powders for 6.5 Creedmoor loaded with the .264 | 105gr | CutEdge Maximus. Alliant Power Pro 2000-MR delivers the highest muzzle velocity at 3,192 fps; across all powders the maximum-charge window runs from 1,854 fps to 3,192 fps. Accurate 4350 gives the best case fill at 100 %, and 111 of the 111 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (435 MPa), the top charges use 52–90 %, leaving at least 10 % headroom. The 105.0 gr projectile in 0.264" calls for a 1:10.0 twist; slower twists will usually not stabilise this weight. Accurate 4350, Alliant Reloder-16, Alliant Reloder-17 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 52, ReloadSwiss RS 60 rank at the top here: for 6.5 Creedmoor with the .264 | 105gr | CutEdge Maximus they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, Accurate 2700, Alliant Reloder-23, Alliant Reloder-26 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.