Load Specifications
Bullet:.264 | 120gr | Hornady ECX
Bullet Manufacturer:Hornady
Bullet Weight:120 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:1:9.0
Load data in caliber 6.5 PRC with .264 | 120gr | Hornady ECX bullet and 99 powders. The key underlying parameters are shown in the table above.
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% | 56,188 psi | 86% | 2900 fps | 100% |
| Accurate 2700 | <<locked>> | 84% | 57,406 psi | 88% | 2976 fps | 98.9% |
| Accurate 3100ᴾ | <<locked>> | 100% | 55,709 psi | 86% | 3018 fps | 99.7% |
| Accurate 4064 | <<locked>> | 84% | 56,884 psi | 88% | 2963 fps | 100% |
| Accurate 4350 | <<locked>> | 92% | 57,856 psi | 89% | 3074 fps | 100% |
| Accurate High Country | <<locked>> | 98% | 57,014 psi | 88% | 3173 fps | 97.7% |
| Accurate MAGPROᴾ | <<locked>> | 100% | 58,044 psi | 89% | 3169 fps | 96.6% |
| ADI AR 2208 | <<locked>> | 86% | 56,594 psi | 87% | 2992 fps | 100% |
| ADI AR 2209 | <<locked>> | 98% | 58,566 psi | 90% | 3117 fps | 98.6% |
| ADI AR 2213ᴾ | <<locked>> | 100% | 56,275 psi | 87% | 3110 fps | 97.1% |
| Alliant Power Pro 2000-MR | <<locked>> | 82% | 56,014 psi | 86% | 3117 fps | 100% |
| Alliant Power Pro Varmint | <<locked>> | 96% | 55,085 psi | 85% | 3054 fps | 98.1% |
| Alliant Reloder- TS 15.5 | <<locked>> | 86% | 57,363 psi | 88% | 3015 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 84% | 57,711 psi | 89% | 3041 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 94% | 58,247 psi | 90% | 3127 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 88% | 56,159 psi | 86% | 3100 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 98% | 58,131 psi | 89% | 3107 fps | 98.6% |
| Alliant Reloder-22ᴾ | <<locked>> | 100% | 55,332 psi | 85% | 3107 fps | 98.3% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 52,460 psi | 81% | 3038 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 45,498 psi | 70% | 2959 fps | 99.2% |
| Alliant Reloder-26 | <<locked>> | 98% | 56,492 psi | 87% | 3186 fps | 100% |
| Bofors RP15ᴾ | <<locked>> | 100% | 50,807 psi | 78% | 3028 fps | 97.4% |
| Bofors RP3 | <<locked>> | 86% | 58,624 psi | 90% | 3035 fps | 100% |
| Bofors RP5ᴾ | <<locked>> | 100% | 55,332 psi | 85% | 3107 fps | 98.3% |
| Bofors RP7 | <<locked>> | 90% | 57,769 psi | 89% | 3022 fps | 99.1% |
| Hodgdon H380 | <<locked>> | 84% | 55,361 psi | 85% | 2999 fps | 100% |
| Hodgdon H414 | <<locked>> | 90% | 56,144 psi | 86% | 3071 fps | 99.3% |
| Hodgdon H4350 | <<locked>> | 88% | 55,912 psi | 86% | 3028 fps | 98.4% |
| Hodgdon H4831 | <<locked>> | 98% | 56,405 psi | 87% | 3054 fps | 96.5% |
| Hodgdon H4831 SC | <<locked>> | 98% | 55,419 psi | 85% | 3038 fps | 96.3% |
| Hodgdon Hybrid 100V | <<locked>> | 96% | 58,784 psi | 90% | 3048 fps | 100% |
| Hodgdon LEVERevolution | <<locked>> | 82% | 56,608 psi | 87% | 3035 fps | 100% |
| Hodgdon Retumboᴾ | <<locked>> | 100% | 44,469 psi | 68% | 2989 fps | 96.5% |
| Hodgdon Superformance | <<locked>> | 90% | 56,623 psi | 87% | 3110 fps | 99.3% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,550 psi | 56% | 1883 fps | 100% |
| Hodgdon VARGET | <<locked>> | 82% | 57,000 psi | 88% | 2995 fps | 100% |
| IMR 4064 | <<locked>> | 84% | 56,101 psi | 86% | 2976 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 84% | 58,740 psi | 90% | 3015 fps | 99.5% |
| IMR 4350 | <<locked>> | 92% | 55,230 psi | 85% | 2999 fps | 98.9% |
| IMR 4451 Enduron | <<locked>> | 88% | 55,825 psi | 86% | 2992 fps | 99.2% |
| IMR 4831 | <<locked>> | 94% | 58,073 psi | 89% | 3064 fps | 100% |
| IMR 4895 | <<locked>> | 82% | 55,724 psi | 86% | 3015 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 98% | 57,812 psi | 89% | 3038 fps | 97% |
| IMR 7828 SSCᴾ | <<locked>> | 100% | 53,882 psi | 83% | 3084 fps | 96.8% |
| Lovex S060 | <<locked>> | 82% | 57,508 psi | 89% | 2959 fps | 100% |
| Lovex S062 | <<locked>> | 84% | 56,333 psi | 87% | 2969 fps | 100% |
| Lovex S065 | <<locked>> | 90% | 55,912 psi | 86% | 2989 fps | 99.8% |
| Lovex S070 | <<locked>> | 92% | 57,305 psi | 88% | 3031 fps | 99.5% |
| Lovex S071ᴾ | <<locked>> | 100% | 46,340 psi | 71% | 2864 fps | 98.6% |
| Norma 201 | <<locked>> | 82% | 57,464 psi | 88% | 2976 fps | 100% |
| Norma 202 | <<locked>> | 82% | 58,363 psi | 90% | 2972 fps | 100% |
| Norma 203B | <<locked>> | 84% | 57,000 psi | 88% | 3025 fps | 100% |
| Norma 204 | <<locked>> | 92% | 56,028 psi | 86% | 3051 fps | 98.1% |
| Norma MRP | <<locked>> | 98% | 55,013 psi | 85% | 3133 fps | 99.3% |
| Norma URP | <<locked>> | 92% | 56,202 psi | 86% | 3054 fps | 100% |
| Ramshot Big Game | <<locked>> | 84% | 58,146 psi | 89% | 3054 fps | 100% |
| Ramshot Grandᴾ | <<locked>> | 100% | 54,186 psi | 83% | 3100 fps | 97.2% |
| Ramshot Hunter | <<locked>> | 94% | 58,798 psi | 90% | 3114 fps | 99.9% |
| Ramshot Magnumᴾ | <<locked>> | 100% | 48,486 psi | 75% | 2969 fps | 97.7% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 37,289 psi | 57% | 1929 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 86% | 58,639 psi | 90% | 3035 fps | 99.7% |
| ReloadSwiss RS 60 | <<locked>> | 86% | 55,579 psi | 86% | 3094 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 92% | 57,624 psi | 89% | 3097 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 92% | 56,275 psi | 87% | 3130 fps | 100% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 44,614 psi | 69% | 2982 fps | 97.7% |
| Rottweil R 902 | <<locked>> | 84% | 58,392 psi | 90% | 2982 fps | 100% |
| Rottweil R 903 | <<locked>> | 88% | 58,798 psi | 90% | 3031 fps | 100% |
| Rottweil R 904 | <<locked>> | 96% | 56,579 psi | 87% | 3028 fps | 97.3% |
| Rottweil R 905 | <<locked>> | 98% | 57,203 psi | 88% | 3091 fps | 98.6% |
| Rottweil R 907 | <<locked>> | 90% | 57,769 psi | 89% | 3022 fps | 99.1% |
| Shooters World Long Rifle | <<locked>> | 90% | 55,912 psi | 86% | 2989 fps | 99.8% |
| Shooters World Precision | <<locked>> | 84% | 56,333 psi | 87% | 2969 fps | 100% |
| Shooters World SW4350 | <<locked>> | 92% | 57,305 psi | 88% | 3031 fps | 99.5% |
| SNPE Vectan SP 11 | <<locked>> | 86% | 56,695 psi | 87% | 3041 fps | 100% |
| SNPE Vectan SP 9 | <<locked>> | 82% | 57,435 psi | 88% | 3009 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 82% | 58,262 psi | 90% | 2904 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 86% | 55,912 psi | 86% | 2861 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 90% | 55,811 psi | 86% | 2943 fps | 99.2% |
| SNPE Vectan Tubal 8000 | <<locked>> | 98% | 56,710 psi | 87% | 3084 fps | 98.5% |
| Somchem S335 | <<locked>> | 82% | 57,841 psi | 89% | 2900 fps | 100% |
| Somchem S355 | <<locked>> | 88% | 58,407 psi | 90% | 3025 fps | 100% |
| Somchem S361 | <<locked>> | 96% | 58,595 psi | 90% | 3022 fps | 96.9% |
| Somchem S365 | <<locked>> | 94% | 55,912 psi | 86% | 3061 fps | 100% |
| Somchem S385 | <<locked>> | 98% | 58,088 psi | 89% | 3068 fps | 99.2% |
| Vihtavuori N133 | <<locked>> | 82% | 58,784 psi | 90% | 2884 fps | 100% |
| Vihtavuori N135 | <<locked>> | 84% | 58,769 psi | 90% | 2933 fps | 100% |
| Vihtavuori N140 | <<locked>> | 82% | 55,288 psi | 85% | 2900 fps | 100% |
| Vihtavuori N150 | <<locked>> | 88% | 56,362 psi | 87% | 2949 fps | 100% |
| Vihtavuori N160 | <<locked>> | 92% | 58,421 psi | 90% | 3051 fps | 100% |
| Vihtavuori N165ᴾ | <<locked>> | 100% | 53,577 psi | 82% | 2979 fps | 98.3% |
| Vihtavuori N540 | <<locked>> | 84% | 57,261 psi | 88% | 2949 fps | 100% |
| Vihtavuori N550 | <<locked>> | 92% | 57,711 psi | 89% | 3058 fps | 100% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 58,624 psi | 90% | 3120 fps | 100% |
| Vihtavuori N560 | <<locked>> | 98% | 55,274 psi | 85% | 3123 fps | 96.7% |
| Winchester 6.5 StaBALL | <<locked>> | 92% | 58,175 psi | 90% | 3012 fps | 100% |
| Winchester 760 | <<locked>> | 90% | 56,434 psi | 87% | 3074 fps | 99.4% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 47,616 psi | 73% | 3104 fps | 100% |
| Winchester StaBALL Match | <<locked>> | 82% | 57,653 psi | 89% | 3018 fps | 100% |
| Winchester Supreme 780ᴾ | <<locked>> | 100% | 58,247 psi | 90% | 3061 fps | 98.5% |
Start Load - Barrel Length: 24"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2495 | <<locked>> | 80% | 52,765 psi | 81% | 2851 fps | 100% |
| Accurate 2700 | <<locked>> | 80% | 50,299 psi | 77% | 2858 fps | 97.9% |
| Accurate 3100 | <<locked>> | 86% | 34,650 psi | 53% | 2615 fps | 95.4% |
| Accurate 4064 | <<locked>> | 80% | 50,024 psi | 77% | 2858 fps | 100% |
| Accurate 4350 | <<locked>> | 80% | 38,261 psi | 59% | 2720 fps | 98.2% |
| Accurate High Country | <<locked>> | 92% | 46,151 psi | 71% | 2972 fps | 95.1% |
| Accurate MAGPRO | <<locked>> | 98% | 54,085 psi | 83% | 3104 fps | 95.7% |
| ADI AR 2208 | <<locked>> | 80% | 47,137 psi | 73% | 2835 fps | 99.8% |
| ADI AR 2209 | <<locked>> | 90% | 45,208 psi | 70% | 2877 fps | 95.8% |
| ADI AR 2213 | <<locked>> | 96% | 49,255 psi | 76% | 2982 fps | 95.4% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 52,243 psi | 80% | 3058 fps | 100% |
| Alliant Power Pro Varmint | <<locked>> | 88% | 42,409 psi | 65% | 2815 fps | 95% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 47,790 psi | 74% | 2861 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 80% | 50,836 psi | 78% | 2930 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 80% | 37,159 psi | 57% | 2730 fps | 98.3% |
| Alliant Reloder-17 | <<locked>> | 80% | 42,366 psi | 65% | 2861 fps | 99.9% |
| Alliant Reloder-19 | <<locked>> | 90% | 44,904 psi | 69% | 2871 fps | 95.9% |
| Alliant Reloder-22 | <<locked>> | 92% | 42,351 psi | 65% | 2861 fps | 95.3% |
| Alliant Reloder-23 | <<locked>> | 80% | 27,311 psi | 42% | 2467 fps | 95.9% |
| Alliant Reloder-25 | <<locked>> | 90% | 33,098 psi | 51% | 2654 fps | 95.2% |
| Alliant Reloder-26 | <<locked>> | 82% | 31,343 psi | 48% | 2644 fps | 95.3% |
| Bofors RP15 | <<locked>> | 96% | 44,512 psi | 69% | 2904 fps | 95.8% |
| Bofors RP3 | <<locked>> | 80% | 48,037 psi | 74% | 2871 fps | 100% |
| Bofors RP5 | <<locked>> | 92% | 42,351 psi | 65% | 2861 fps | 95.3% |
| Bofors RP7 | <<locked>> | 80% | 42,293 psi | 65% | 2736 fps | 96.2% |
| Hodgdon H380 | <<locked>> | 80% | 48,385 psi | 74% | 2881 fps | 99.5% |
| Hodgdon H414 | <<locked>> | 80% | 40,176 psi | 62% | 2766 fps | 96.2% |
| Hodgdon H4350 | <<locked>> | 80% | 43,076 psi | 66% | 2789 fps | 95.6% |
| Hodgdon H4831 | <<locked>> | 96% | 52,895 psi | 81% | 2992 fps | 95.7% |
| Hodgdon H4831 SC | <<locked>> | 96% | 51,663 psi | 80% | 2972 fps | 95.4% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 34,693 psi | 53% | 2618 fps | 98.8% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 52,968 psi | 82% | 2979 fps | 100% |
| Hodgdon Retumbo | <<locked>> | 98% | 41,800 psi | 64% | 2923 fps | 95.5% |
| Hodgdon Superformance | <<locked>> | 80% | 39,160 psi | 60% | 2776 fps | 95.4% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,253 psi | 42% | 1683 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 53,621 psi | 83% | 2946 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 49,588 psi | 76% | 2871 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 80% | 51,837 psi | 80% | 2900 fps | 98.7% |
| IMR 4350 | <<locked>> | 82% | 40,321 psi | 62% | 2713 fps | 95.6% |
| IMR 4451 Enduron | <<locked>> | 80% | 43,685 psi | 67% | 2769 fps | 97.1% |
| IMR 4831 | <<locked>> | 80% | 36,738 psi | 57% | 2671 fps | 97.9% |
| IMR 4895 | <<locked>> | 80% | 52,141 psi | 80% | 2959 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 94% | 51,242 psi | 79% | 2927 fps | 95.6% |
| IMR 7828 SSC | <<locked>> | 98% | 50,241 psi | 77% | 3018 fps | 95.9% |
| Lovex S060 | <<locked>> | 80% | 54,186 psi | 83% | 2907 fps | 100% |
| Lovex S062 | <<locked>> | 80% | 49,893 psi | 77% | 2867 fps | 100% |
| Lovex S065 | <<locked>> | 80% | 41,133 psi | 63% | 2717 fps | 97.8% |
| Lovex S070 | <<locked>> | 80% | 39,363 psi | 61% | 2694 fps | 96.2% |
| Lovex S071 | <<locked>> | 92% | 35,694 psi | 55% | 2638 fps | 95.8% |
| Norma 201 | <<locked>> | 80% | 54,070 psi | 83% | 2927 fps | 100% |
| Norma 202 | <<locked>> | 80% | 54,926 psi | 85% | 2923 fps | 100% |
| Norma 203B | <<locked>> | 80% | 50,169 psi | 77% | 2917 fps | 100% |
| Norma 204 | <<locked>> | 84% | 42,786 psi | 66% | 2805 fps | 95% |
| Norma MRP | <<locked>> | 88% | 38,783 psi | 60% | 2808 fps | 95.6% |
| Norma URP | <<locked>> | 80% | 38,000 psi | 58% | 2713 fps | 98.1% |
| Ramshot Big Game | <<locked>> | 80% | 50,633 psi | 78% | 2936 fps | 100% |
| Ramshot Grand | <<locked>> | 96% | 46,891 psi | 72% | 2959 fps | 95.3% |
| Ramshot Hunter | <<locked>> | 80% | 36,840 psi | 57% | 2694 fps | 96% |
| Ramshot Magnum | <<locked>> | 96% | 41,916 psi | 65% | 2835 fps | 95.9% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,760 psi | 43% | 1722 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 48,472 psi | 75% | 2867 fps | 98.7% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 44,976 psi | 69% | 2920 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 38,029 psi | 59% | 2733 fps | 97.9% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 36,869 psi | 57% | 2740 fps | 97.2% |
| ReloadSwiss RS 76 | <<locked>> | 96% | 38,682 psi | 60% | 2835 fps | 95.4% |
| Rottweil R 902 | <<locked>> | 80% | 51,663 psi | 80% | 2881 fps | 100% |
| Rottweil R 903 | <<locked>> | 80% | 45,237 psi | 70% | 2815 fps | 100% |
| Rottweil R 904 | <<locked>> | 90% | 46,717 psi | 72% | 2851 fps | 95% |
| Rottweil R 905 | <<locked>> | 90% | 43,990 psi | 68% | 2851 fps | 95.8% |
| Rottweil R 907 | <<locked>> | 80% | 42,293 psi | 65% | 2736 fps | 96.2% |
| Shooters World Long Rifle | <<locked>> | 80% | 41,133 psi | 63% | 2717 fps | 97.8% |
| Shooters World Precision | <<locked>> | 80% | 49,893 psi | 77% | 2867 fps | 100% |
| Shooters World SW4350 | <<locked>> | 80% | 39,363 psi | 61% | 2694 fps | 96.2% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 46,383 psi | 71% | 2867 fps | 99.9% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 53,838 psi | 83% | 2956 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 54,737 psi | 84% | 2854 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 46,340 psi | 71% | 2717 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 40,277 psi | 62% | 2657 fps | 96.3% |
| SNPE Vectan Tubal 8000 | <<locked>> | 90% | 43,584 psi | 67% | 2848 fps | 95.7% |
| Somchem S335 | <<locked>> | 80% | 54,549 psi | 84% | 2851 fps | 100% |
| Somchem S355 | <<locked>> | 80% | 45,469 psi | 70% | 2812 fps | 100% |
| Somchem S361 | <<locked>> | 92% | 51,401 psi | 79% | 2907 fps | 95.4% |
| Somchem S365 | <<locked>> | 80% | 34,563 psi | 53% | 2671 fps | 99.6% |
| Somchem S385 | <<locked>> | 86% | 39,102 psi | 60% | 2717 fps | 95.2% |
| Vihtavuori N133 | <<locked>> | 80% | 55,288 psi | 85% | 2838 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 51,851 psi | 80% | 2841 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 51,996 psi | 80% | 2854 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 43,424 psi | 67% | 2740 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 39,378 psi | 61% | 2713 fps | 98.4% |
| Vihtavuori N165 | <<locked>> | 92% | 41,060 psi | 63% | 2749 fps | 95.4% |
| Vihtavuori N540 | <<locked>> | 80% | 50,299 psi | 77% | 2844 fps | 100% |
| Vihtavuori N550 | <<locked>> | 80% | 38,870 psi | 60% | 2713 fps | 98.1% |
| Vihtavuori N555 | <<locked>> | 80% | 30,168 psi | 46% | 2549 fps | 96.1% |
| Vihtavuori N560 | <<locked>> | 96% | 51,590 psi | 79% | 3058 fps | 95.8% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 38,522 psi | 59% | 2680 fps | 99.7% |
| Winchester 760 | <<locked>> | 80% | 40,437 psi | 62% | 2772 fps | 96.3% |
| Winchester StaBALL HD | <<locked>> | 82% | 25,802 psi | 40% | 2497 fps | 95.6% |
| Winchester StaBALL Match | <<locked>> | 80% | 53,940 psi | 83% | 2963 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 92% | 44,063 psi | 68% | 2815 fps | 95.6% |
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 | 120gr | Hornady ECX. Alliant Reloder-26 delivers the highest muzzle velocity at 3,186 fps; across all powders the maximum-charge window runs from 1,883 fps to 3,186 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 120.0 gr projectile in 0.264" calls for a 1:9.0 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. Always begin at the start load and work up in small increments while checking case and primer for pressure signs.