Load Specifications
Load data in caliber 6.5 PRC with .264 | 122gr | Lehigh Defense Controlled Chaos bullet and 99 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are ReloadSwiss RS 70, Alliant Reloder-26 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 2495 | <<locked>> | 82% | 55,753 psi | 86% | 2867 fps | 100% |
| Accurate 2700 | <<locked>> | 84% | 56,898 psi | 88% | 2943 fps | 98.9% |
| Accurate 3100ᴾ | <<locked>> | 100% | 55,230 psi | 85% | 2989 fps | 99.7% |
| Accurate 4064 | <<locked>> | 84% | 56,492 psi | 87% | 2930 fps | 100% |
| Accurate 4350 | <<locked>> | 92% | 57,334 psi | 88% | 3041 fps | 100% |
| Accurate MAGPROᴾ | <<locked>> | 100% | 57,638 psi | 89% | 3136 fps | 96.6% |
| ADI AR 2206H | <<locked>> | 82% | 58,711 psi | 90% | 3009 fps | 100% |
| ADI AR 2208 | <<locked>> | 86% | 56,304 psi | 87% | 2963 fps | 100% |
| ADI AR 2209 | <<locked>> | 98% | 58,305 psi | 90% | 3087 fps | 98.6% |
| ADI AR 2213ᴾ | <<locked>> | 100% | 55,825 psi | 86% | 3077 fps | 97.1% |
| Alliant Power Pro 2000-MR | <<locked>> | 82% | 55,796 psi | 86% | 3087 fps | 100% |
| Alliant Reloder- TS 15.5 | <<locked>> | 86% | 57,087 psi | 88% | 2982 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 84% | 57,421 psi | 88% | 3009 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 94% | 57,783 psi | 89% | 3097 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 88% | 55,680 psi | 86% | 3068 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 98% | 57,537 psi | 89% | 3074 fps | 98.6% |
| Alliant Reloder-22ᴾ | <<locked>> | 100% | 54,824 psi | 84% | 3074 fps | 98.3% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 51,880 psi | 80% | 3005 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 45,063 psi | 69% | 2927 fps | 99.2% |
| Alliant Reloder-26 | <<locked>> | 98% | 55,709 psi | 86% | 3150 fps | 100% |
| Bofors RP15ᴾ | <<locked>> | 100% | 50,256 psi | 77% | 2995 fps | 97.3% |
| Bofors RP3 | <<locked>> | 86% | 58,059 psi | 89% | 3002 fps | 100% |
| Bofors RP5ᴾ | <<locked>> | 100% | 54,824 psi | 84% | 3074 fps | 98.3% |
| Bofors RP7 | <<locked>> | 90% | 57,276 psi | 88% | 2986 fps | 99.1% |
| Hodgdon H380 | <<locked>> | 86% | 58,668 psi | 90% | 3025 fps | 100% |
| Hodgdon H414 | <<locked>> | 90% | 55,753 psi | 86% | 3038 fps | 99.3% |
| Hodgdon H4350 | <<locked>> | 88% | 55,448 psi | 85% | 2995 fps | 98.4% |
| Hodgdon H4831 | <<locked>> | 98% | 55,883 psi | 86% | 3018 fps | 96.5% |
| Hodgdon H4831 SCᴾ | <<locked>> | 100% | 58,610 psi | 90% | 3061 fps | 97% |
| Hodgdon Hybrid 100V | <<locked>> | 96% | 58,349 psi | 90% | 3015 fps | 100% |
| Hodgdon LEVERevolution | <<locked>> | 82% | 56,028 psi | 86% | 3002 fps | 100% |
| Hodgdon Retumboᴾ | <<locked>> | 100% | 44,063 psi | 68% | 2956 fps | 96.5% |
| Hodgdon Superformance | <<locked>> | 90% | 56,086 psi | 86% | 3074 fps | 99.2% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,434 psi | 56% | 1860 fps | 100% |
| Hodgdon VARGET | <<locked>> | 82% | 56,637 psi | 87% | 2966 fps | 100% |
| IMR 4064 | <<locked>> | 84% | 55,724 psi | 86% | 2943 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 84% | 58,189 psi | 90% | 2979 fps | 99.5% |
| IMR 4350 | <<locked>> | 94% | 58,320 psi | 90% | 3022 fps | 99.2% |
| IMR 4451 Enduron | <<locked>> | 88% | 55,361 psi | 85% | 2959 fps | 99.2% |
| IMR 4831 | <<locked>> | 94% | 57,711 psi | 89% | 3031 fps | 100% |
| IMR 4895 | <<locked>> | 82% | 55,361 psi | 85% | 2986 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 98% | 57,580 psi | 89% | 3009 fps | 97% |
| IMR 7828 SSCᴾ | <<locked>> | 100% | 53,403 psi | 82% | 3051 fps | 96.7% |
| Lovex S060 | <<locked>> | 82% | 57,145 psi | 88% | 2927 fps | 100% |
| Lovex S062 | <<locked>> | 84% | 55,985 psi | 86% | 2936 fps | 100% |
| Lovex S065 | <<locked>> | 90% | 55,767 psi | 86% | 2959 fps | 99.8% |
| Lovex S070 | <<locked>> | 92% | 56,942 psi | 88% | 3002 fps | 99.5% |
| Lovex S071ᴾ | <<locked>> | 100% | 45,730 psi | 70% | 2828 fps | 98.6% |
| Norma 201 | <<locked>> | 82% | 57,087 psi | 88% | 2943 fps | 100% |
| Norma 202 | <<locked>> | 82% | 57,972 psi | 89% | 2943 fps | 100% |
| Norma 203B | <<locked>> | 84% | 56,710 psi | 87% | 2992 fps | 100% |
| Norma 204 | <<locked>> | 92% | 55,695 psi | 86% | 3018 fps | 98.1% |
| Norma MRPᴾ | <<locked>> | 100% | 58,639 psi | 90% | 3169 fps | 99.6% |
| Norma URP | <<locked>> | 92% | 55,738 psi | 86% | 3022 fps | 100% |
| Ramshot Big Game | <<locked>> | 84% | 57,696 psi | 89% | 3022 fps | 100% |
| Ramshot Grandᴾ | <<locked>> | 100% | 53,751 psi | 83% | 3068 fps | 97.2% |
| Ramshot Hunter | <<locked>> | 94% | 58,566 psi | 90% | 3084 fps | 99.9% |
| Ramshot Magnumᴾ | <<locked>> | 100% | 47,848 psi | 74% | 2933 fps | 97.6% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 37,202 psi | 57% | 1906 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 86% | 58,479 psi | 90% | 3009 fps | 99.7% |
| ReloadSwiss RS 52 | <<locked>> | 82% | 58,784 psi | 90% | 3084 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 86% | 55,056 psi | 85% | 3058 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 92% | 57,305 psi | 88% | 3064 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 92% | 55,695 psi | 86% | 3094 fps | 100% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 44,135 psi | 68% | 2949 fps | 97.7% |
| Rottweil R 902 | <<locked>> | 84% | 57,986 psi | 89% | 2949 fps | 100% |
| Rottweil R 903 | <<locked>> | 88% | 58,247 psi | 90% | 2999 fps | 100% |
| Rottweil R 904 | <<locked>> | 96% | 56,246 psi | 87% | 2995 fps | 97.3% |
| Rottweil R 905 | <<locked>> | 98% | 56,913 psi | 88% | 3061 fps | 98.6% |
| Rottweil R 907 | <<locked>> | 90% | 57,276 psi | 88% | 2986 fps | 99.1% |
| Shooters World Long Rifle | <<locked>> | 90% | 55,767 psi | 86% | 2959 fps | 99.8% |
| Shooters World Precision | <<locked>> | 84% | 55,985 psi | 86% | 2936 fps | 100% |
| Shooters World SW4350 | <<locked>> | 92% | 56,942 psi | 88% | 3002 fps | 99.5% |
| SNPE Vectan SP 11 | <<locked>> | 86% | 56,188 psi | 86% | 3005 fps | 100% |
| SNPE Vectan SP 9 | <<locked>> | 82% | 57,130 psi | 88% | 2979 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 82% | 57,769 psi | 89% | 2871 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 86% | 55,579 psi | 86% | 2828 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 90% | 55,361 psi | 85% | 2910 fps | 99.2% |
| SNPE Vectan Tubal 8000 | <<locked>> | 98% | 56,420 psi | 87% | 3054 fps | 98.5% |
| Somchem S335 | <<locked>> | 82% | 57,479 psi | 88% | 2867 fps | 100% |
| Somchem S355 | <<locked>> | 88% | 58,189 psi | 90% | 2995 fps | 100% |
| Somchem S361 | <<locked>> | 96% | 58,218 psi | 90% | 2992 fps | 96.9% |
| Somchem S365 | <<locked>> | 94% | 55,187 psi | 85% | 3025 fps | 100% |
| Somchem S385 | <<locked>> | 98% | 57,522 psi | 89% | 3035 fps | 99.2% |
| Vihtavuori N133 | <<locked>> | 82% | 58,320 psi | 90% | 2851 fps | 100% |
| Vihtavuori N135 | <<locked>> | 84% | 58,320 psi | 90% | 2904 fps | 100% |
| Vihtavuori N140 | <<locked>> | 84% | 58,726 psi | 90% | 2920 fps | 100% |
| Vihtavuori N150 | <<locked>> | 88% | 55,854 psi | 86% | 2913 fps | 100% |
| Vihtavuori N160 | <<locked>> | 92% | 58,015 psi | 89% | 3018 fps | 100% |
| Vihtavuori N165ᴾ | <<locked>> | 100% | 53,084 psi | 82% | 2946 fps | 98.3% |
| Vihtavuori N540 | <<locked>> | 84% | 56,724 psi | 87% | 2917 fps | 100% |
| Vihtavuori N550 | <<locked>> | 92% | 57,029 psi | 88% | 3022 fps | 100% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 57,972 psi | 89% | 3084 fps | 100% |
| Vihtavuori N560ᴾ | <<locked>> | 100% | 58,784 psi | 90% | 3156 fps | 97.4% |
| Winchester 6.5 StaBALL | <<locked>> | 92% | 57,653 psi | 89% | 2979 fps | 100% |
| Winchester 760 | <<locked>> | 90% | 55,753 psi | 86% | 3038 fps | 99.3% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 46,804 psi | 72% | 3064 fps | 100% |
| Winchester StaBALL Match | <<locked>> | 82% | 57,377 psi | 88% | 2986 fps | 100% |
| Winchester Supreme 780ᴾ | <<locked>> | 100% | 57,812 psi | 89% | 3028 fps | 98.5% |
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 2495 | <<locked>> | 80% | 52,272 psi | 80% | 2818 fps | 100% |
| Accurate 2700 | <<locked>> | 80% | 50,053 psi | 77% | 2828 fps | 97.9% |
| Accurate 3100 | <<locked>> | 86% | 34,243 psi | 53% | 2585 fps | 95.4% |
| Accurate 4064 | <<locked>> | 80% | 49,559 psi | 76% | 2828 fps | 100% |
| Accurate 4350 | <<locked>> | 80% | 37,898 psi | 58% | 2687 fps | 98.2% |
| Accurate MAGPRO | <<locked>> | 98% | 53,650 psi | 83% | 3071 fps | 95.7% |
| ADI AR 2206H | <<locked>> | 80% | 54,911 psi | 85% | 2953 fps | 100% |
| ADI AR 2208 | <<locked>> | 80% | 46,746 psi | 72% | 2802 fps | 99.8% |
| ADI AR 2209 | <<locked>> | 90% | 44,788 psi | 69% | 2844 fps | 95.8% |
| ADI AR 2213 | <<locked>> | 96% | 48,718 psi | 75% | 2949 fps | 95.4% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 51,967 psi | 80% | 3028 fps | 100% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 47,340 psi | 73% | 2828 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 80% | 50,430 psi | 78% | 2897 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 80% | 36,811 psi | 57% | 2697 fps | 98.3% |
| Alliant Reloder-17 | <<locked>> | 80% | 41,814 psi | 64% | 2828 fps | 99.9% |
| Alliant Reloder-19 | <<locked>> | 90% | 44,498 psi | 68% | 2838 fps | 95.8% |
| Alliant Reloder-22 | <<locked>> | 92% | 42,047 psi | 65% | 2831 fps | 95.3% |
| Alliant Reloder-23 | <<locked>> | 80% | 27,035 psi | 42% | 2441 fps | 95.9% |
| Alliant Reloder-25 | <<locked>> | 90% | 32,764 psi | 50% | 2625 fps | 95.2% |
| Alliant Reloder-26 | 49.7 gr | 82% | 31,009 psi | 48% | 2615 fps | 95.3% |
| Bofors RP15 | <<locked>> | 96% | 44,179 psi | 68% | 2874 fps | 95.8% |
| Bofors RP3 | <<locked>> | 80% | 47,688 psi | 73% | 2838 fps | 100% |
| Bofors RP5 | <<locked>> | 92% | 42,047 psi | 65% | 2831 fps | 95.3% |
| Bofors RP7 | <<locked>> | 80% | 41,959 psi | 65% | 2707 fps | 96.2% |
| Hodgdon H380 | <<locked>> | 80% | 48,037 psi | 74% | 2851 fps | 99.5% |
| Hodgdon H414 | <<locked>> | 80% | 39,871 psi | 61% | 2736 fps | 96.2% |
| Hodgdon H4350 | <<locked>> | 80% | 42,757 psi | 66% | 2759 fps | 95.6% |
| Hodgdon H4831 | <<locked>> | 96% | 52,359 psi | 81% | 2959 fps | 95.7% |
| Hodgdon H4831 SC | <<locked>> | 96% | 51,126 psi | 79% | 2940 fps | 95.4% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 34,577 psi | 53% | 2592 fps | 98.8% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 52,330 psi | 81% | 2943 fps | 100% |
| Hodgdon Retumbo | <<locked>> | 98% | 41,394 psi | 64% | 2887 fps | 95.4% |
| Hodgdon Superformance | 50 gr | 80% | 38,769 psi | 60% | 2743 fps | 95.4% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,224 psi | 42% | 1663 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 53,229 psi | 82% | 2910 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 49,182 psi | 76% | 2838 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 80% | 51,488 psi | 79% | 2867 fps | 98.7% |
| IMR 4350 | <<locked>> | 82% | 40,074 psi | 62% | 2684 fps | 95.6% |
| IMR 4451 Enduron | <<locked>> | 80% | 43,323 psi | 67% | 2736 fps | 97% |
| IMR 4831 | <<locked>> | 80% | 36,390 psi | 56% | 2638 fps | 97.9% |
| IMR 4895 | <<locked>> | 80% | 51,764 psi | 80% | 2927 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 94% | 50,662 psi | 78% | 2894 fps | 95.5% |
| IMR 7828 SSC | <<locked>> | 98% | 49,734 psi | 77% | 2982 fps | 95.8% |
| Lovex S060 | <<locked>> | 80% | 53,766 psi | 83% | 2874 fps | 100% |
| Lovex S062 | <<locked>> | 80% | 49,458 psi | 76% | 2835 fps | 100% |
| Lovex S065 | <<locked>> | 80% | 40,741 psi | 63% | 2684 fps | 97.7% |
| Lovex S070 | <<locked>> | 80% | 39,044 psi | 60% | 2664 fps | 96.2% |
| Lovex S071 | <<locked>> | 92% | 35,476 psi | 55% | 2615 fps | 95.9% |
| Norma 201 | <<locked>> | 80% | 53,650 psi | 83% | 2894 fps | 100% |
| Norma 202 | <<locked>> | 80% | 54,462 psi | 84% | 2890 fps | 100% |
| Norma 203B | <<locked>> | 80% | 49,806 psi | 77% | 2884 fps | 100% |
| Norma 204 | <<locked>> | 86% | 45,426 psi | 70% | 2838 fps | 95.9% |
| Norma MRP | <<locked>> | 88% | 38,450 psi | 59% | 2779 fps | 95.6% |
| Norma URP | <<locked>> | 80% | 37,623 psi | 58% | 2680 fps | 98% |
| Ramshot Big Game | <<locked>> | 80% | 50,401 psi | 78% | 2910 fps | 100% |
| Ramshot Grand | <<locked>> | 96% | 46,398 psi | 71% | 2927 fps | 95.2% |
| Ramshot Hunter | <<locked>> | 80% | 36,564 psi | 56% | 2667 fps | 96.1% |
| Ramshot Magnum | <<locked>> | 96% | 41,553 psi | 64% | 2802 fps | 95.8% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,746 psi | 43% | 1703 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 47,892 psi | 74% | 2831 fps | 98.6% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 54,781 psi | 84% | 3022 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 44,440 psi | 68% | 2884 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 37,753 psi | 58% | 2707 fps | 97.9% |
| ReloadSwiss RS 70 | 48.1 gr | 80% | 36,651 psi | 56% | 2713 fps | 97.2% |
| ReloadSwiss RS 76 | <<locked>> | 96% | 38,392 psi | 59% | 2805 fps | 95.4% |
| Rottweil R 902 | <<locked>> | 80% | 51,227 psi | 79% | 2848 fps | 100% |
| Rottweil R 903 | <<locked>> | 80% | 44,831 psi | 69% | 2782 fps | 100% |
| Rottweil R 904 | <<locked>> | 90% | 46,267 psi | 71% | 2822 fps | 95% |
| Rottweil R 905 | <<locked>> | 90% | 43,584 psi | 67% | 2822 fps | 95.8% |
| Rottweil R 907 | <<locked>> | 80% | 41,959 psi | 65% | 2707 fps | 96.2% |
| Shooters World Long Rifle | <<locked>> | 80% | 40,741 psi | 63% | 2684 fps | 97.7% |
| Shooters World Precision | <<locked>> | 80% | 49,458 psi | 76% | 2835 fps | 100% |
| Shooters World SW4350 | <<locked>> | 80% | 39,044 psi | 60% | 2664 fps | 96.2% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 46,064 psi | 71% | 2838 fps | 99.9% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 53,519 psi | 82% | 2923 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 54,520 psi | 84% | 2825 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 46,166 psi | 71% | 2690 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 39,914 psi | 61% | 2628 fps | 96.3% |
| SNPE Vectan Tubal 8000 | <<locked>> | 90% | 43,178 psi | 66% | 2815 fps | 95.6% |
| Somchem S335 | <<locked>> | 80% | 54,099 psi | 83% | 2818 fps | 100% |
| Somchem S355 | <<locked>> | 80% | 45,078 psi | 69% | 2782 fps | 100% |
| Somchem S361 | <<locked>> | 92% | 50,952 psi | 78% | 2874 fps | 95.3% |
| Somchem S365 | <<locked>> | 80% | 34,200 psi | 53% | 2641 fps | 99.6% |
| Somchem S385 | <<locked>> | 86% | 38,667 psi | 60% | 2684 fps | 95.1% |
| Vihtavuori N133 | <<locked>> | 80% | 55,085 psi | 85% | 2808 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 51,634 psi | 79% | 2812 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 51,590 psi | 79% | 2822 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 43,076 psi | 66% | 2710 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 39,044 psi | 60% | 2680 fps | 98.4% |
| Vihtavuori N165 | <<locked>> | 92% | 40,727 psi | 63% | 2720 fps | 95.4% |
| Vihtavuori N540 | <<locked>> | 80% | 49,966 psi | 77% | 2815 fps | 100% |
| Vihtavuori N550 | <<locked>> | 80% | 38,566 psi | 59% | 2684 fps | 98.1% |
| Vihtavuori N555 | <<locked>> | 80% | 29,820 psi | 46% | 2520 fps | 96.1% |
| Vihtavuori N560 | <<locked>> | 96% | 51,097 psi | 79% | 3022 fps | 95.7% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 38,319 psi | 59% | 2654 fps | 99.7% |
| Winchester 760 | <<locked>> | 80% | 40,132 psi | 62% | 2743 fps | 96.3% |
| Winchester StaBALL HD | <<locked>> | 82% | 25,628 psi | 39% | 2470 fps | 95.6% |
| Winchester StaBALL Match | <<locked>> | 80% | 53,679 psi | 83% | 2930 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 92% | 43,743 psi | 67% | 2785 fps | 95.6% |
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 99 powders for 6.5 PRC loaded with the .264 | 122gr | Lehigh Defense Controlled Chaos. Norma MRP delivers the highest muzzle velocity at 3,169 fps; across all powders the maximum-charge window runs from 1,860 fps to 3,169 fps. Accurate 3100 gives the best case fill at 100 %, and 99 of the 99 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (448 MPa), the top charges use 56–90 %, leaving at least 10 % headroom. The 122.0 gr projectile in 0.264" calls for a 1:8.0 twist; slower twists will usually not stabilise this weight. Accurate 3100, Accurate MAGPRO, ADI AR 2213 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 70, Alliant Reloder-26, Hodgdon Superformance rank at the top here: for 6.5 PRC with the .264 | 122gr | Lehigh Defense Controlled Chaos 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.