Load Specifications
Bullet:.264 | 124gr | Hammer Hunter
Bullet Manufacturer:Hammer
Bullet Weight:124 gr
Bullet Diameter:0.264"
Bullet Length:<<locked>>
Caliber:6.5 PRC load data
Case Length (l3):2.03"
Cartridge Length (C.O.L.):<<locked>>
Case Capacity:68 Grains of Water
Primer Size:Large Rifle (LR)
Barrel Length:24"
Max. allowed Pressure:64,977 psi
Recommended Twist Rate:1:8.0
Load data in caliber 6.5 PRC with .264 | 124gr | Hammer Hunter 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, Ramshot Grand and Norma MRP.
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% | 56,971 psi | 88% | 2881 fps | 100% |
| Accurate 2700 | <<locked>> | 86% | 56,028 psi | 86% | 2920 fps | 99.1% |
| Accurate 3100ᴾ | <<locked>> | 100% | 56,985 psi | 88% | 3012 fps | 99.9% |
| Accurate 4064 | <<locked>> | 84% | 57,406 psi | 88% | 2936 fps | 100% |
| Accurate 4350 | <<locked>> | 90% | 55,245 psi | 85% | 3005 fps | 100% |
| Accurate MAGPROᴾ | <<locked>> | 100% | 56,492 psi | 87% | 3107 fps | 96.1% |
| ADI AR 2208 | <<locked>> | 86% | 57,798 psi | 89% | 2982 fps | 100% |
| ADI AR 2209 | <<locked>> | 96% | 56,434 psi | 87% | 3058 fps | 98.7% |
| ADI AR 2213ᴾ | <<locked>> | 100% | 58,030 psi | 89% | 3117 fps | 98% |
| Alliant Power Pro 2000-MR | <<locked>> | 82% | 57,580 psi | 89% | 3110 fps | 100% |
| Alliant Power Pro Varmint | <<locked>> | 96% | 56,536 psi | 87% | 3051 fps | 98.7% |
| Alliant Reloder- TS 15.5 | <<locked>> | 86% | 58,581 psi | 90% | 2999 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 82% | 55,172 psi | 85% | 2972 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 92% | 56,057 psi | 86% | 3064 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 88% | 57,609 psi | 89% | 3087 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 96% | 55,767 psi | 86% | 3045 fps | 98.7% |
| Alliant Reloder-22ᴾ | <<locked>> | 100% | 57,130 psi | 88% | 3110 fps | 99% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 54,070 psi | 83% | 3028 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 46,572 psi | 72% | 2956 fps | 99.7% |
| Alliant Reloder-26 | <<locked>> | 98% | 58,668 psi | 90% | 3182 fps | 100% |
| Bofors RP15ᴾ | <<locked>> | 100% | 52,156 psi | 80% | 3025 fps | 98.1% |
| Bofors RP3 | <<locked>> | 84% | 55,825 psi | 86% | 2966 fps | 100% |
| Bofors RP5ᴾ | <<locked>> | 100% | 57,130 psi | 88% | 3110 fps | 99% |
| Bofors RP7 | <<locked>> | 90% | 58,798 psi | 90% | 3012 fps | 99.5% |
| Hodgdon H380 | <<locked>> | 84% | 56,057 psi | 86% | 2982 fps | 100% |
| Hodgdon H414 | <<locked>> | 86% | 54,810 psi | 84% | 3018 fps | 99.5% |
| Hodgdon H4350 | <<locked>> | 90% | 55,259 psi | 85% | 2992 fps | 98.7% |
| Hodgdon H4831ᴾ | <<locked>> | 100% | 53,330 psi | 82% | 2979 fps | 96.5% |
| Hodgdon H4831 SC | <<locked>> | 98% | 56,826 psi | 87% | 3035 fps | 97.2% |
| Hodgdon Hybrid 100V | <<locked>> | 94% | 56,420 psi | 87% | 2986 fps | 100% |
| Hodgdon LEVERevolution | <<locked>> | 84% | 57,943 psi | 89% | 3022 fps | 100% |
| Hodgdon Retumboᴾ | <<locked>> | 100% | 45,759 psi | 70% | 2999 fps | 97.7% |
| Hodgdon Superformance | <<locked>> | 90% | 58,233 psi | 90% | 3107 fps | 99.6% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,405 psi | 56% | 1864 fps | 100% |
| Hodgdon VARGET | <<locked>> | 84% | 57,305 psi | 88% | 2972 fps | 100% |
| IMR 3031 | <<locked>> | 82% | 56,724 psi | 87% | 2936 fps | 100% |
| IMR 4064 | <<locked>> | 86% | 56,362 psi | 87% | 2949 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 88% | 58,639 psi | 90% | 2986 fps | 99.7% |
| IMR 4350 | <<locked>> | 92% | 56,637 psi | 87% | 2995 fps | 99.3% |
| IMR 4451 Enduron | <<locked>> | 88% | 56,942 psi | 88% | 2986 fps | 99.5% |
| IMR 4831 | <<locked>> | 96% | 56,623 psi | 87% | 3012 fps | 100% |
| IMR 4895 | <<locked>> | 82% | 56,637 psi | 87% | 2999 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 96% | 55,680 psi | 86% | 2982 fps | 97.1% |
| IMR 7828 SSC | <<locked>> | 98% | 55,579 psi | 86% | 3091 fps | 97.7% |
| Lovex S060 | <<locked>> | 82% | 58,407 psi | 90% | 2943 fps | 100% |
| Lovex S062 | <<locked>> | 84% | 57,130 psi | 88% | 2949 fps | 100% |
| Lovex S065 | <<locked>> | 90% | 56,884 psi | 88% | 2976 fps | 100% |
| Lovex S070 | <<locked>> | 92% | 58,653 psi | 90% | 3028 fps | 99.8% |
| Lovex S071ᴾ | <<locked>> | 100% | 47,326 psi | 73% | 2858 fps | 99.1% |
| Norma 201 | <<locked>> | 82% | 58,537 psi | 90% | 2963 fps | 100% |
| Norma 203B | <<locked>> | 84% | 58,189 psi | 90% | 3012 fps | 100% |
| Norma 204 | <<locked>> | 92% | 57,537 psi | 89% | 3051 fps | 98.7% |
| Norma MRP | <<locked>> | 98% | 56,985 psi | 88% | 3136 fps | 99.7% |
| Norma URP | <<locked>> | 92% | 57,740 psi | 89% | 3048 fps | 100% |
| Ramshot Big Game | <<locked>> | 82% | 55,332 psi | 85% | 2982 fps | 100% |
| Ramshot Grand | <<locked>> | 96% | 55,637 psi | 86% | 3100 fps | 98.1% |
| Ramshot Hunter | <<locked>> | 92% | 56,478 psi | 87% | 3048 fps | 99.9% |
| Ramshot Magnumᴾ | <<locked>> | 100% | 56,623 psi | 87% | 3081 fps | 99.4% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 37,130 psi | 57% | 1909 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 84% | 55,970 psi | 86% | 2969 fps | 99.7% |
| ReloadSwiss RS 60 | <<locked>> | 86% | 57,145 psi | 88% | 3077 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 90% | 55,259 psi | 85% | 3028 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 92% | 57,885 psi | 89% | 3123 fps | 100% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 45,759 psi | 70% | 2992 fps | 98.6% |
| Rottweil R 902 | <<locked>> | 82% | 55,637 psi | 86% | 2913 fps | 100% |
| Rottweil R 903 | <<locked>> | 86% | 56,014 psi | 86% | 2963 fps | 100% |
| Rottweil R 904 | <<locked>> | 96% | 58,001 psi | 89% | 3028 fps | 98% |
| Rottweil R 905 | <<locked>> | 98% | 58,755 psi | 90% | 3087 fps | 99.1% |
| Rottweil R 907 | <<locked>> | 90% | 58,798 psi | 90% | 3012 fps | 99.5% |
| Shooters World Long Rifle | <<locked>> | 90% | 56,884 psi | 88% | 2976 fps | 100% |
| Shooters World Precision | <<locked>> | 84% | 57,130 psi | 88% | 2949 fps | 100% |
| Shooters World SW4350 | <<locked>> | 92% | 58,653 psi | 90% | 3028 fps | 99.8% |
| SNPE Vectan SP 11 | <<locked>> | 86% | 57,914 psi | 89% | 3025 fps | 100% |
| SNPE Vectan SP 9 | <<locked>> | 82% | 58,595 psi | 90% | 2995 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 86% | 56,782 psi | 87% | 2841 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 90% | 56,695 psi | 87% | 2930 fps | 99.6% |
| SNPE Vectan Tubal 8000 | <<locked>> | 98% | 58,276 psi | 90% | 3084 fps | 99.1% |
| Somchem S355 | <<locked>> | 86% | 55,738 psi | 86% | 2953 fps | 100% |
| Somchem S361 | <<locked>> | 94% | 56,028 psi | 86% | 2959 fps | 97% |
| Somchem S365 | <<locked>> | 94% | 57,276 psi | 88% | 3045 fps | 100% |
| Somchem S385 | <<locked>> | 96% | 55,564 psi | 86% | 3002 fps | 99.2% |
| Unknown powder | <<locked>> | 90% | 58,262 psi | 90% | 3051 fps | 100% |
| Vihtavuori N133 | <<locked>> | 82% | 55,782 psi | 86% | 2815 fps | 100% |
| Vihtavuori N135 | <<locked>> | 82% | 56,144 psi | 86% | 2867 fps | 100% |
| Vihtavuori N140 | <<locked>> | 82% | 55,738 psi | 86% | 2877 fps | 100% |
| Vihtavuori N150 | <<locked>> | 92% | 57,624 psi | 89% | 2936 fps | 100% |
| Vihtavuori N160 | <<locked>> | 90% | 58,798 psi | 90% | 3022 fps | 100% |
| Vihtavuori N165ᴾ | <<locked>> | 100% | 53,055 psi | 82% | 2946 fps | 98.7% |
| Vihtavuori N540 | <<locked>> | 82% | 55,216 psi | 85% | 2904 fps | 100% |
| Vihtavuori N550 | <<locked>> | 88% | 55,172 psi | 85% | 3009 fps | 100% |
| Vihtavuori N555 | <<locked>> | 98% | 56,144 psi | 86% | 3051 fps | 100% |
| Vihtavuori N560ᴾ | <<locked>> | 100% | 57,363 psi | 88% | 3136 fps | 97.6% |
| Vihtavuori N565ᴾ | <<locked>> | 100% | 48,472 psi | 75% | 2959 fps | 95.9% |
| Winchester 6.5 StaBALL | <<locked>> | 90% | 55,825 psi | 86% | 2949 fps | 100% |
| Winchester 760 | <<locked>> | 86% | 54,810 psi | 84% | 3018 fps | 99.5% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 49,676 psi | 76% | 3094 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 96% | 57,624 psi | 89% | 3025 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% | 53,156 psi | 82% | 2828 fps | 100% |
| Accurate 2700 | <<locked>> | 80% | 46,050 psi | 71% | 2749 fps | 97.5% |
| Accurate 3100 | <<locked>> | 84% | 32,663 psi | 50% | 2543 fps | 95.2% |
| Accurate 4064 | <<locked>> | 80% | 50,430 psi | 78% | 2838 fps | 100% |
| Accurate 4350 | <<locked>> | 80% | 38,754 psi | 60% | 2707 fps | 98.7% |
| Accurate MAGPRO | <<locked>> | 98% | 52,663 psi | 81% | 3041 fps | 95.2% |
| ADI AR 2208 | <<locked>> | 80% | 47,935 psi | 74% | 2822 fps | 100% |
| ADI AR 2209 | <<locked>> | 88% | 43,047 psi | 66% | 2812 fps | 95.8% |
| ADI AR 2213 | <<locked>> | 94% | 47,065 psi | 72% | 2920 fps | 95.6% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 53,693 psi | 83% | 3051 fps | 100% |
| Alliant Power Pro Varmint | <<locked>> | 86% | 40,422 psi | 62% | 2749 fps | 95% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 48,515 psi | 75% | 2844 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 80% | 51,619 psi | 79% | 2917 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 80% | 37,797 psi | 58% | 2720 fps | 98.9% |
| Alliant Reloder-17 | <<locked>> | 80% | 43,163 psi | 66% | 2848 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 88% | 42,815 psi | 66% | 2802 fps | 95.9% |
| Alliant Reloder-22 | <<locked>> | 90% | 40,538 psi | 62% | 2799 fps | 95.3% |
| Alliant Reloder-23 | <<locked>> | 80% | 27,528 psi | 42% | 2457 fps | 96.7% |
| Alliant Reloder-25 | <<locked>> | 88% | 31,343 psi | 48% | 2582 fps | 95.1% |
| Alliant Reloder-26 | 50.3 gr | 80% | 29,457 psi | 45% | 2569 fps | 95% |
| Bofors RP15 | <<locked>> | 94% | 42,612 psi | 66% | 2841 fps | 95.8% |
| Bofors RP3 | <<locked>> | 80% | 48,646 psi | 75% | 2851 fps | 100% |
| Bofors RP5 | <<locked>> | 90% | 40,538 psi | 62% | 2799 fps | 95.3% |
| Bofors RP7 | <<locked>> | 80% | 42,815 psi | 66% | 2726 fps | 96.9% |
| Hodgdon H380 | <<locked>> | 80% | 49,008 psi | 75% | 2867 fps | 99.8% |
| Hodgdon H414 | <<locked>> | 80% | 44,469 psi | 68% | 2835 fps | 97.9% |
| Hodgdon H4350 | <<locked>> | 80% | 40,190 psi | 62% | 2703 fps | 95.4% |
| Hodgdon H4831 | <<locked>> | 98% | 49,705 psi | 76% | 2913 fps | 95.6% |
| Hodgdon H4831 SC | <<locked>> | 94% | 49,414 psi | 76% | 2910 fps | 95.5% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 35,317 psi | 54% | 2608 fps | 99.3% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 50,676 psi | 78% | 2913 fps | 100% |
| Hodgdon Retumbo | <<locked>> | 96% | 39,929 psi | 61% | 2858 fps | 95.5% |
| Hodgdon Superformance | <<locked>> | 80% | 39,900 psi | 61% | 2769 fps | 96.4% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,253 psi | 42% | 1667 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 50,459 psi | 78% | 2864 fps | 100% |
| IMR 3031 | <<locked>> | 80% | 53,200 psi | 82% | 2887 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 46,847 psi | 72% | 2795 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 80% | 45,847 psi | 71% | 2766 fps | 98.1% |
| IMR 4350 | <<locked>> | 80% | 38,464 psi | 59% | 2651 fps | 95.6% |
| IMR 4451 Enduron | <<locked>> | 80% | 44,324 psi | 68% | 2759 fps | 97.7% |
| IMR 4831 | <<locked>> | 80% | 33,678 psi | 52% | 2569 fps | 97.5% |
| IMR 4895 | <<locked>> | 80% | 52,997 psi | 82% | 2943 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 92% | 49,095 psi | 76% | 2867 fps | 95.7% |
| IMR 7828 SSC | <<locked>> | 92% | 45,049 psi | 69% | 2890 fps | 95% |
| Lovex S060 | <<locked>> | 80% | 55,085 psi | 85% | 2894 fps | 100% |
| Lovex S062 | <<locked>> | 80% | 50,604 psi | 78% | 2851 fps | 100% |
| Lovex S065 | <<locked>> | 80% | 41,582 psi | 64% | 2703 fps | 98.3% |
| Lovex S070 | <<locked>> | 80% | 39,813 psi | 61% | 2684 fps | 96.9% |
| Lovex S071 | <<locked>> | 90% | 33,852 psi | 52% | 2572 fps | 95.7% |
| Norma 201 | <<locked>> | 80% | 54,766 psi | 84% | 2910 fps | 100% |
| Norma 203B | <<locked>> | 80% | 50,966 psi | 78% | 2900 fps | 100% |
| Norma 204 | <<locked>> | 82% | 40,770 psi | 63% | 2740 fps | 95% |
| Norma MRP | 52.5 gr | 86% | 36,825 psi | 57% | 2740 fps | 95.5% |
| Norma URP | <<locked>> | 80% | 38,609 psi | 59% | 2700 fps | 98.6% |
| Ramshot Big Game | <<locked>> | 80% | 51,764 psi | 80% | 2927 fps | 100% |
| Ramshot Grand | 56.7 gr | 90% | 44,164 psi | 68% | 2884 fps | 95.2% |
| Ramshot Hunter | <<locked>> | 80% | 37,637 psi | 58% | 2690 fps | 96.9% |
| Ramshot Magnum | <<locked>> | 90% | 38,189 psi | 59% | 2730 fps | 95.2% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,731 psi | 43% | 1709 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 49,110 psi | 76% | 2854 fps | 99.1% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 45,905 psi | 71% | 2904 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 38,812 psi | 60% | 2726 fps | 98.5% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 37,550 psi | 58% | 2736 fps | 98% |
| ReloadSwiss RS 76 | <<locked>> | 94% | 36,767 psi | 57% | 2772 fps | 95.4% |
| Rottweil R 902 | <<locked>> | 80% | 52,040 psi | 80% | 2858 fps | 100% |
| Rottweil R 903 | <<locked>> | 80% | 45,803 psi | 70% | 2799 fps | 100% |
| Rottweil R 904 | <<locked>> | 88% | 44,744 psi | 69% | 2792 fps | 95.1% |
| Rottweil R 905 | <<locked>> | 88% | 41,887 psi | 64% | 2785 fps | 95.8% |
| Rottweil R 907 | <<locked>> | 80% | 42,815 psi | 66% | 2726 fps | 96.9% |
| Shooters World Long Rifle | <<locked>> | 80% | 41,582 psi | 64% | 2703 fps | 98.3% |
| Shooters World Precision | <<locked>> | 80% | 50,604 psi | 78% | 2851 fps | 100% |
| Shooters World SW4350 | <<locked>> | 80% | 39,813 psi | 61% | 2684 fps | 96.9% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 47,427 psi | 73% | 2858 fps | 100% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 54,940 psi | 85% | 2943 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 47,094 psi | 72% | 2700 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 40,654 psi | 63% | 2644 fps | 97% |
| SNPE Vectan Tubal 8000 | <<locked>> | 88% | 41,510 psi | 64% | 2779 fps | 95.6% |
| Somchem S355 | <<locked>> | 80% | 46,093 psi | 71% | 2799 fps | 100% |
| Somchem S361 | <<locked>> | 90% | 48,921 psi | 75% | 2841 fps | 95.4% |
| Somchem S365 | <<locked>> | 80% | 35,186 psi | 54% | 2657 fps | 99.9% |
| Somchem S385 | <<locked>> | 84% | 37,115 psi | 57% | 2648 fps | 95.1% |
| Unknown powder | <<locked>> | 80% | 41,582 psi | 64% | 2759 fps | 98.8% |
| Vihtavuori N133 | <<locked>> | 80% | 52,750 psi | 81% | 2776 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 52,721 psi | 81% | 2822 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 52,127 psi | 80% | 2825 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 39,552 psi | 61% | 2641 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 41,756 psi | 64% | 2736 fps | 99.2% |
| Vihtavuori N165 | <<locked>> | 90% | 37,942 psi | 58% | 2657 fps | 95% |
| Vihtavuori N540 | <<locked>> | 80% | 51,721 psi | 80% | 2851 fps | 100% |
| Vihtavuori N550 | <<locked>> | 80% | 42,177 psi | 65% | 2776 fps | 99.1% |
| Vihtavuori N555 | <<locked>> | 80% | 30,501 psi | 47% | 2536 fps | 96.8% |
| Vihtavuori N560 | <<locked>> | 94% | 46,586 psi | 72% | 2940 fps | 95.1% |
| Vihtavuori N565 | <<locked>> | 98% | 45,194 psi | 70% | 2894 fps | 95% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 39,233 psi | 60% | 2671 fps | 99.9% |
| Winchester 760 | <<locked>> | 80% | 44,469 psi | 68% | 2835 fps | 97.9% |
| Winchester StaBALL HD | <<locked>> | 80% | 24,279 psi | 37% | 2421 fps | 95.2% |
| Winchester Supreme 780 | <<locked>> | 88% | 43,062 psi | 66% | 2772 fps | 95.9% |
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 PRC loaded with the .264 | 124gr | Hammer Hunter. Alliant Reloder-26 delivers the highest muzzle velocity at 3,182 fps; across all powders the maximum-charge window runs from 1,864 fps to 3,182 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 (448 MPa), the top charges use 56–90 %, leaving at least 10 % headroom. The 124.0 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. Alliant Reloder-26, Ramshot Grand, Norma MRP rank at the top here: for 6.5 PRC with the .264 | 124gr | Hammer Hunter 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.