Load Specifications
Load data in caliber 6.5 PRC with .264 | 127gr | Barnes LRX BT bullet and 97 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Alliant Reloder-26, ReloadSwiss RS 70 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 2495 | <<locked>> | 82% | 55,361 psi | 85% | 2815 fps | 100% |
| Accurate 2700 | <<locked>> | 84% | 57,145 psi | 88% | 2897 fps | 99.2% |
| Accurate 3100ᴾ | <<locked>> | 100% | 55,477 psi | 85% | 2943 fps | 99.8% |
| Accurate 4064 | <<locked>> | 84% | 55,898 psi | 86% | 2871 fps | 100% |
| Accurate 4350 | <<locked>> | 92% | 57,609 psi | 89% | 2992 fps | 100% |
| Accurate MAGPROᴾ | <<locked>> | 100% | 58,030 psi | 89% | 3094 fps | 97.1% |
| ADI AR 2208 | <<locked>> | 86% | 56,579 psi | 87% | 2913 fps | 100% |
| ADI AR 2209 | <<locked>> | 98% | 58,624 psi | 90% | 3041 fps | 98.9% |
| ADI AR 2213ᴾ | <<locked>> | 100% | 56,434 psi | 87% | 3041 fps | 97.7% |
| Alliant Power Pro 2000-MR | <<locked>> | 82% | 56,318 psi | 87% | 3041 fps | 100% |
| Alliant Reloder- TS 15.5 | <<locked>> | 86% | 57,319 psi | 88% | 2936 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 84% | 57,653 psi | 89% | 2959 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 94% | 58,407 psi | 90% | 3051 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 88% | 55,941 psi | 86% | 3018 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 98% | 57,812 psi | 89% | 3028 fps | 98.9% |
| Alliant Reloder-22ᴾ | <<locked>> | 100% | 55,390 psi | 85% | 3035 fps | 98.7% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 52,098 psi | 80% | 2956 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 45,339 psi | 70% | 2887 fps | 99.5% |
| Alliant Reloder-26 | <<locked>> | 98% | 56,507 psi | 87% | 3107 fps | 100% |
| Bofors RP15ᴾ | <<locked>> | 100% | 50,444 psi | 78% | 2949 fps | 97.8% |
| Bofors RP3 | <<locked>> | 86% | 58,204 psi | 90% | 2949 fps | 100% |
| Bofors RP5ᴾ | <<locked>> | 100% | 55,390 psi | 85% | 3035 fps | 98.7% |
| Bofors RP7 | <<locked>> | 90% | 57,522 psi | 89% | 2943 fps | 99.3% |
| Hodgdon H380 | <<locked>> | 86% | 58,552 psi | 90% | 2972 fps | 100% |
| Hodgdon H414 | <<locked>> | 90% | 56,144 psi | 86% | 2995 fps | 99.6% |
| Hodgdon H4350 | <<locked>> | 88% | 55,825 psi | 86% | 2953 fps | 98.8% |
| Hodgdon H4831 | <<locked>> | 98% | 56,492 psi | 87% | 2982 fps | 97% |
| Hodgdon H4831 SC | <<locked>> | 98% | 55,114 psi | 85% | 2959 fps | 96.8% |
| Hodgdon Hybrid 100V | <<locked>> | 94% | 55,100 psi | 85% | 2920 fps | 100% |
| Hodgdon LEVERevolution | <<locked>> | 82% | 56,391 psi | 87% | 2953 fps | 100% |
| Hodgdon Retumboᴾ | <<locked>> | 100% | 44,353 psi | 68% | 2920 fps | 97.2% |
| Hodgdon Superformance | <<locked>> | 90% | 56,391 psi | 87% | 3031 fps | 99.5% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,332 psi | 56% | 1821 fps | 100% |
| Hodgdon VARGET | <<locked>> | 82% | 56,913 psi | 88% | 2917 fps | 100% |
| IMR 4064 | <<locked>> | 84% | 55,956 psi | 86% | 2894 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 84% | 58,479 psi | 90% | 2933 fps | 99.7% |
| IMR 4350 | <<locked>> | 94% | 58,755 psi | 90% | 2979 fps | 99.5% |
| IMR 4451 Enduron | <<locked>> | 88% | 55,651 psi | 86% | 2913 fps | 99.4% |
| IMR 4831 | <<locked>> | 94% | 57,740 psi | 89% | 2979 fps | 100% |
| IMR 4895 | <<locked>> | 82% | 55,564 psi | 86% | 2936 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 98% | 57,783 psi | 89% | 2966 fps | 97.4% |
| IMR 7828 SSCᴾ | <<locked>> | 100% | 53,606 psi | 83% | 3009 fps | 97.2% |
| Lovex S060 | <<locked>> | 82% | 57,334 psi | 88% | 2877 fps | 100% |
| Lovex S062 | <<locked>> | 84% | 56,057 psi | 86% | 2887 fps | 100% |
| Lovex S065 | <<locked>> | 90% | 55,608 psi | 86% | 2907 fps | 99.9% |
| Lovex S070 | <<locked>> | 92% | 57,145 psi | 88% | 2956 fps | 99.7% |
| Lovex S071ᴾ | <<locked>> | 100% | 45,730 psi | 70% | 2785 fps | 98.9% |
| Norma 201 | <<locked>> | 82% | 57,058 psi | 88% | 2894 fps | 100% |
| Norma 202 | <<locked>> | 82% | 58,117 psi | 89% | 2890 fps | 100% |
| Norma 203B | <<locked>> | 84% | 56,913 psi | 88% | 2943 fps | 100% |
| Norma 204 | <<locked>> | 92% | 56,217 psi | 87% | 2979 fps | 98.5% |
| Norma MRP | <<locked>> | 98% | 54,868 psi | 84% | 3058 fps | 99.5% |
| Norma URP | <<locked>> | 92% | 56,115 psi | 86% | 2976 fps | 100% |
| Ramshot Big Game | <<locked>> | 84% | 58,131 psi | 89% | 2976 fps | 100% |
| Ramshot Grandᴾ | <<locked>> | 100% | 54,085 psi | 83% | 3028 fps | 97.7% |
| Ramshot Hunter | <<locked>> | 94% | 58,769 psi | 90% | 3035 fps | 100% |
| Ramshot Magnumᴾ | <<locked>> | 100% | 48,312 psi | 74% | 2897 fps | 98.1% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 37,072 psi | 57% | 1867 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 86% | 58,508 psi | 90% | 2956 fps | 99.9% |
| ReloadSwiss RS 60 | <<locked>> | 86% | 55,637 psi | 86% | 3012 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 92% | 57,435 psi | 88% | 3015 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 92% | 55,985 psi | 86% | 3048 fps | 100% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 44,164 psi | 68% | 2913 fps | 98.2% |
| Rottweil R 902 | <<locked>> | 84% | 58,015 psi | 89% | 2897 fps | 100% |
| Rottweil R 903 | <<locked>> | 88% | 58,392 psi | 90% | 2949 fps | 100% |
| Rottweil R 904 | <<locked>> | 96% | 56,724 psi | 87% | 2959 fps | 97.8% |
| Rottweil R 905 | <<locked>> | 98% | 57,101 psi | 88% | 3015 fps | 98.9% |
| Rottweil R 907 | <<locked>> | 90% | 57,522 psi | 89% | 2943 fps | 99.3% |
| Shooters World Long Rifle | <<locked>> | 90% | 55,608 psi | 86% | 2907 fps | 99.9% |
| Shooters World Precision | <<locked>> | 84% | 56,057 psi | 86% | 2887 fps | 100% |
| Shooters World SW4350 | <<locked>> | 92% | 57,145 psi | 88% | 2956 fps | 99.7% |
| SNPE Vectan SP 11 | <<locked>> | 86% | 56,579 psi | 87% | 2959 fps | 100% |
| SNPE Vectan SP 9 | <<locked>> | 82% | 57,421 psi | 88% | 2933 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 82% | 57,899 psi | 89% | 2822 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 86% | 55,767 psi | 86% | 2782 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 90% | 55,579 psi | 86% | 2867 fps | 99.4% |
| SNPE Vectan Tubal 8000 | <<locked>> | 98% | 56,623 psi | 87% | 3009 fps | 98.8% |
| Somchem S335 | <<locked>> | 82% | 57,551 psi | 89% | 2818 fps | 100% |
| Somchem S355 | <<locked>> | 88% | 58,030 psi | 89% | 2940 fps | 100% |
| Somchem S361 | <<locked>> | 96% | 58,363 psi | 90% | 2946 fps | 97.3% |
| Somchem S365 | <<locked>> | 94% | 55,666 psi | 86% | 2979 fps | 100% |
| Somchem S385 | <<locked>> | 98% | 57,609 psi | 89% | 2986 fps | 99.4% |
| Vihtavuori N133 | <<locked>> | 82% | 58,508 psi | 90% | 2799 fps | 100% |
| Vihtavuori N135 | <<locked>> | 84% | 58,436 psi | 90% | 2851 fps | 100% |
| Vihtavuori N140 | <<locked>> | 82% | 55,056 psi | 85% | 2822 fps | 100% |
| Vihtavuori N150 | <<locked>> | 88% | 56,072 psi | 86% | 2867 fps | 100% |
| Vihtavuori N160 | <<locked>> | 92% | 58,479 psi | 90% | 2972 fps | 100% |
| Vihtavuori N165ᴾ | <<locked>> | 100% | 53,548 psi | 82% | 2907 fps | 98.7% |
| Vihtavuori N540 | <<locked>> | 84% | 56,913 psi | 88% | 2864 fps | 100% |
| Vihtavuori N550 | <<locked>> | 92% | 57,392 psi | 88% | 2976 fps | 100% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 58,421 psi | 90% | 3038 fps | 100% |
| Vihtavuori N560 | <<locked>> | 98% | 55,100 psi | 85% | 3045 fps | 97.1% |
| Winchester 6.5 StaBALL | <<locked>> | 92% | 58,262 psi | 90% | 2936 fps | 100% |
| Winchester 760 | <<locked>> | 90% | 56,144 psi | 86% | 2995 fps | 99.6% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 47,645 psi | 73% | 3025 fps | 100% |
| Winchester StaBALL Match | <<locked>> | 82% | 57,725 psi | 89% | 2940 fps | 100% |
| Winchester Supreme 780ᴾ | <<locked>> | 100% | 58,102 psi | 89% | 2986 fps | 98.8% |
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% | 52,112 psi | 80% | 2769 fps | 100% |
| Accurate 2700 | <<locked>> | 80% | 50,140 psi | 77% | 2785 fps | 98.2% |
| Accurate 3100 | <<locked>> | 86% | 33,924 psi | 52% | 2536 fps | 95.8% |
| Accurate 4064 | <<locked>> | 80% | 49,458 psi | 76% | 2776 fps | 100% |
| Accurate 4350 | <<locked>> | 80% | 37,666 psi | 58% | 2641 fps | 98.5% |
| Accurate MAGPRO | <<locked>> | 96% | 50,125 psi | 77% | 2963 fps | 95.3% |
| ADI AR 2208 | <<locked>> | 80% | 46,804 psi | 72% | 2756 fps | 99.9% |
| ADI AR 2209 | <<locked>> | 88% | 42,177 psi | 65% | 2746 fps | 95.5% |
| ADI AR 2213 | <<locked>> | 94% | 45,963 psi | 71% | 2851 fps | 95.1% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 52,359 psi | 81% | 2982 fps | 100% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 47,355 psi | 73% | 2779 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 80% | 50,502 psi | 78% | 2848 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 80% | 36,985 psi | 57% | 2657 fps | 98.7% |
| Alliant Reloder-17 | 47.1 gr | 80% | 41,959 psi | 65% | 2782 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 88% | 41,655 psi | 64% | 2736 fps | 95.5% |
| Alliant Reloder-22 | <<locked>> | 92% | 41,959 psi | 65% | 2785 fps | 95.7% |
| Alliant Reloder-23 | <<locked>> | 80% | 26,905 psi | 41% | 2402 fps | 96.4% |
| Alliant Reloder-25 | <<locked>> | 90% | 32,648 psi | 50% | 2582 fps | 95.7% |
| Alliant Reloder-26 | 49.5 gr | 82% | 30,806 psi | 47% | 2572 fps | 95.8% |
| Bofors RP15 | <<locked>> | 94% | 41,365 psi | 64% | 2772 fps | 95.4% |
| Bofors RP3 | <<locked>> | 80% | 47,572 psi | 73% | 2789 fps | 100% |
| Bofors RP5 | <<locked>> | 92% | 41,959 psi | 65% | 2785 fps | 95.7% |
| Bofors RP7 | <<locked>> | 80% | 41,814 psi | 64% | 2661 fps | 96.6% |
| Hodgdon H380 | <<locked>> | 80% | 48,037 psi | 74% | 2802 fps | 99.7% |
| Hodgdon H414 | <<locked>> | 80% | 39,871 psi | 61% | 2694 fps | 96.7% |
| Hodgdon H4350 | <<locked>> | 80% | 42,830 psi | 66% | 2717 fps | 96.2% |
| Hodgdon H4831 | <<locked>> | 94% | 49,139 psi | 76% | 2858 fps | 95.4% |
| Hodgdon H4831 SC | <<locked>> | 94% | 48,240 psi | 74% | 2841 fps | 95.1% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 34,461 psi | 53% | 2546 fps | 99.1% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 52,605 psi | 81% | 2897 fps | 100% |
| Hodgdon Retumbo | <<locked>> | 98% | 41,307 psi | 64% | 2851 fps | 96.1% |
| Hodgdon Superformance | <<locked>> | 80% | 38,841 psi | 60% | 2700 fps | 95.9% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,050 psi | 42% | 1627 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 53,447 psi | 82% | 2864 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 49,240 psi | 76% | 2789 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 80% | 51,648 psi | 79% | 2825 fps | 99% |
| IMR 4350 | <<locked>> | 80% | 37,579 psi | 58% | 2589 fps | 95.3% |
| IMR 4451 Enduron | <<locked>> | 80% | 43,381 psi | 67% | 2694 fps | 97.5% |
| IMR 4831 | <<locked>> | 80% | 36,245 psi | 56% | 2592 fps | 98.2% |
| IMR 4895 | <<locked>> | 80% | 51,851 psi | 80% | 2877 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 92% | 47,892 psi | 74% | 2799 fps | 95.3% |
| IMR 7828 SSC | <<locked>> | 96% | 46,659 psi | 72% | 2881 fps | 95.5% |
| Lovex S060 | <<locked>> | 80% | 53,911 psi | 83% | 2828 fps | 100% |
| Lovex S062 | <<locked>> | 80% | 49,371 psi | 76% | 2782 fps | 100% |
| Lovex S065 | <<locked>> | 80% | 40,828 psi | 63% | 2644 fps | 98.1% |
| Lovex S070 | <<locked>> | 80% | 38,841 psi | 60% | 2618 fps | 96.6% |
| Lovex S071 | <<locked>> | 90% | 32,880 psi | 51% | 2510 fps | 95.3% |
| Norma 201 | <<locked>> | 80% | 53,867 psi | 83% | 2848 fps | 100% |
| Norma 202 | <<locked>> | 80% | 54,563 psi | 84% | 2841 fps | 100% |
| Norma 203B | <<locked>> | 80% | 49,850 psi | 77% | 2835 fps | 100% |
| Norma 204 | <<locked>> | 84% | 42,496 psi | 65% | 2733 fps | 95.5% |
| Norma MRP | <<locked>> | 86% | 35,810 psi | 55% | 2674 fps | 95% |
| Norma URP | <<locked>> | 80% | 37,550 psi | 58% | 2638 fps | 98.4% |
| Ramshot Big Game | <<locked>> | 80% | 50,618 psi | 78% | 2864 fps | 100% |
| Ramshot Grand | <<locked>> | 96% | 46,775 psi | 72% | 2894 fps | 95.9% |
| Ramshot Hunter | <<locked>> | 80% | 36,535 psi | 56% | 2625 fps | 96.5% |
| Ramshot Magnum | <<locked>> | 94% | 38,479 psi | 59% | 2694 fps | 95.3% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,557 psi | 42% | 1667 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 47,964 psi | 74% | 2785 fps | 98.9% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 44,628 psi | 69% | 2835 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 37,695 psi | 58% | 2661 fps | 98.2% |
| ReloadSwiss RS 70 | 47.9 gr | 80% | 36,622 psi | 56% | 2674 fps | 97.7% |
| ReloadSwiss RS 76 | <<locked>> | 96% | 38,247 psi | 59% | 2769 fps | 96% |
| Rottweil R 902 | <<locked>> | 80% | 51,111 psi | 79% | 2795 fps | 100% |
| Rottweil R 903 | <<locked>> | 80% | 44,672 psi | 69% | 2733 fps | 100% |
| Rottweil R 904 | <<locked>> | 90% | 46,485 psi | 72% | 2782 fps | 95.5% |
| Rottweil R 905 | <<locked>> | 88% | 40,654 psi | 63% | 2717 fps | 95.3% |
| Rottweil R 907 | <<locked>> | 80% | 41,814 psi | 64% | 2661 fps | 96.6% |
| Shooters World Long Rifle | <<locked>> | 80% | 40,828 psi | 63% | 2644 fps | 98.1% |
| Shooters World Precision | <<locked>> | 80% | 49,371 psi | 76% | 2782 fps | 100% |
| Shooters World SW4350 | <<locked>> | 80% | 38,841 psi | 60% | 2618 fps | 96.6% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 46,195 psi | 71% | 2792 fps | 100% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 53,693 psi | 83% | 2877 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 54,592 psi | 84% | 2776 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 46,166 psi | 71% | 2641 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 39,784 psi | 61% | 2582 fps | 96.7% |
| SNPE Vectan Tubal 8000 | <<locked>> | 88% | 40,277 psi | 62% | 2710 fps | 95.2% |
| Somchem S335 | <<locked>> | 80% | 54,404 psi | 84% | 2772 fps | 100% |
| Somchem S355 | <<locked>> | 80% | 45,237 psi | 70% | 2736 fps | 100% |
| Somchem S361 | <<locked>> | 92% | 50,952 psi | 78% | 2828 fps | 95.8% |
| Somchem S365 | <<locked>> | 80% | 34,113 psi | 53% | 2595 fps | 99.8% |
| Somchem S385 | <<locked>> | 86% | 38,609 psi | 59% | 2641 fps | 95.6% |
| Vihtavuori N133 | <<locked>> | 80% | 55,230 psi | 85% | 2759 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 51,605 psi | 79% | 2759 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 51,663 psi | 80% | 2772 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 42,989 psi | 66% | 2661 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 39,015 psi | 60% | 2638 fps | 98.7% |
| Vihtavuori N165 | <<locked>> | 90% | 38,029 psi | 59% | 2621 fps | 95% |
| Vihtavuori N540 | <<locked>> | 80% | 50,024 psi | 77% | 2766 fps | 100% |
| Vihtavuori N550 | <<locked>> | 80% | 38,479 psi | 59% | 2638 fps | 98.4% |
| Vihtavuori N555 | <<locked>> | 80% | 29,501 psi | 45% | 2470 fps | 96.4% |
| Vihtavuori N560 | <<locked>> | 94% | 48,037 psi | 74% | 2920 fps | 95.4% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 38,145 psi | 59% | 2605 fps | 99.8% |
| Winchester 760 | <<locked>> | 80% | 39,871 psi | 61% | 2694 fps | 96.7% |
| Winchester StaBALL HD | <<locked>> | 82% | 25,280 psi | 39% | 2428 fps | 96.1% |
| Winchester StaBALL Match | <<locked>> | 80% | 53,882 psi | 83% | 2884 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 90% | 40,814 psi | 63% | 2684 fps | 95.1% |
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 104 powders for 6.5 PRC loaded with the .264 | 127gr | Barnes LRX BT. Alliant Reloder-26 delivers the highest muzzle velocity at 3,107 fps; across all powders the maximum-charge window runs from 1,821 fps to 3,107 fps. Accurate 3100 gives the best case fill at 100 %, and 104 of the 104 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (448 MPa), the top charges use 48–90 %, leaving at least 10 % headroom. The 127.0 gr projectile in 0.264" calls for a 1:8.5 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. Alliant Reloder-26, ReloadSwiss RS 70, Alliant Reloder-17 rank at the top here: for 6.5 PRC with the .264 | 127gr | Barnes LRX BT they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, ADI AR 2217, Baschieri & Pellagri 109, Bofors RP30 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.