Load Specifications
Load data in caliber 7-6.5 PRCW with .284 | 156gr | Lapua Naturalis bullet and 104 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-16 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.
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
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2495 | <<locked>> | 84% | 56,623 psi | 87% | 2694 fps | 100% |
| Accurate 2700 | <<locked>> | 86% | 57,464 psi | 88% | 2753 fps | 98.6% |
| Accurate 3100ᴾ | <<locked>> | 100% | 50,705 psi | 78% | 2736 fps | 99% |
| Accurate 4064 | <<locked>> | 86% | 56,681 psi | 87% | 2743 fps | 100% |
| Accurate 4350 | <<locked>> | 94% | 56,565 psi | 87% | 2841 fps | 100% |
| ADI AR 2206H | <<locked>> | 82% | 55,245 psi | 85% | 2762 fps | 100% |
| ADI AR 2208 | <<locked>> | 88% | 56,449 psi | 87% | 2772 fps | 100% |
| ADI AR 2209ᴾ | <<locked>> | 100% | 57,363 psi | 88% | 2874 fps | 98% |
| ADI Benchmark 8208 | <<locked>> | 82% | 57,276 psi | 88% | 2756 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 84% | 55,129 psi | 85% | 2887 fps | 100% |
| Alliant Reloder- TS 15.5 | <<locked>> | 88% | 57,087 psi | 88% | 2792 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 86% | 57,479 psi | 88% | 2815 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 96% | 56,985 psi | 88% | 2894 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 92% | 58,291 psi | 90% | 2920 fps | 100% |
| Alliant Reloder-19ᴾ | <<locked>> | 100% | 56,362 psi | 87% | 2864 fps | 98% |
| Alliant Reloder-22ᴾ | <<locked>> | 100% | 50,053 psi | 77% | 2808 fps | 97% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 47,398 psi | 73% | 2756 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 41,640 psi | 64% | 2674 fps | 98.1% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 53,867 psi | 83% | 2940 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 84% | 58,653 psi | 90% | 2831 fps | 100% |
| Bofors RP15ᴾ | <<locked>> | 100% | 46,151 psi | 71% | 2736 fps | 95.9% |
| Bofors RP3 | <<locked>> | 88% | 58,088 psi | 89% | 2808 fps | 100% |
| Bofors RP5ᴾ | <<locked>> | 100% | 50,053 psi | 77% | 2808 fps | 97% |
| Bofors RP7 | <<locked>> | 92% | 57,421 psi | 88% | 2792 fps | 98.8% |
| Hodgdon Benchmark | <<locked>> | 82% | 58,523 psi | 90% | 2733 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 82% | 57,435 psi | 88% | 2792 fps | 100% |
| Hodgdon H380 | <<locked>> | 88% | 58,682 psi | 90% | 2828 fps | 100% |
| Hodgdon H414 | <<locked>> | 94% | 58,610 psi | 90% | 2887 fps | 99.4% |
| Hodgdon H4350 | <<locked>> | 92% | 58,639 psi | 90% | 2848 fps | 98.5% |
| Hodgdon H4895 | <<locked>> | 82% | 55,825 psi | 86% | 2772 fps | 100% |
| Hodgdon Hybrid 100V | <<locked>> | 98% | 57,246 psi | 88% | 2815 fps | 100% |
| Hodgdon LEVERevolution | <<locked>> | 84% | 55,666 psi | 86% | 2808 fps | 100% |
| Hodgdon Superformance | <<locked>> | 92% | 54,955 psi | 85% | 2871 fps | 98.8% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,390 psi | 56% | 1703 fps | 100% |
| Hodgdon VARGET | <<locked>> | 84% | 56,782 psi | 87% | 2772 fps | 100% |
| IMR 3031 | <<locked>> | 82% | 56,507 psi | 87% | 2749 fps | 100% |
| IMR 4064 | <<locked>> | 86% | 55,970 psi | 86% | 2753 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 86% | 58,465 psi | 90% | 2782 fps | 99.2% |
| IMR 4350 | <<locked>> | 96% | 57,928 psi | 89% | 2822 fps | 98.9% |
| IMR 4451 Enduron | <<locked>> | 92% | 58,784 psi | 90% | 2815 fps | 99.2% |
| IMR 4831 | <<locked>> | 96% | 56,768 psi | 87% | 2828 fps | 100% |
| IMR 4895 | <<locked>> | 84% | 55,492 psi | 85% | 2792 fps | 100% |
| IMR 4955 Enduronᴾ | <<locked>> | 100% | 56,898 psi | 88% | 2805 fps | 96.3% |
| IMR 8208 XBR | <<locked>> | 82% | 57,276 psi | 88% | 2756 fps | 100% |
| Lovex D073.6 | <<locked>> | 82% | 55,738 psi | 86% | 2740 fps | 100% |
| Lovex S060 | <<locked>> | 84% | 57,609 psi | 89% | 2736 fps | 100% |
| Lovex S062 | <<locked>> | 86% | 56,289 psi | 87% | 2749 fps | 100% |
| Lovex S065 | <<locked>> | 92% | 55,564 psi | 86% | 2762 fps | 99.6% |
| Lovex S070 | <<locked>> | 94% | 56,869 psi | 88% | 2805 fps | 99.2% |
| Lovex S071ᴾ | <<locked>> | 100% | 42,525 psi | 65% | 2598 fps | 97.6% |
| Norma 201 | <<locked>> | 84% | 57,638 psi | 89% | 2756 fps | 100% |
| Norma 202 | <<locked>> | 84% | 58,247 psi | 90% | 2753 fps | 100% |
| Norma 203B | <<locked>> | 86% | 56,753 psi | 87% | 2802 fps | 100% |
| Norma 204 | <<locked>> | 96% | 58,726 psi | 90% | 2871 fps | 98.1% |
| Norma MRPᴾ | <<locked>> | 100% | 52,866 psi | 81% | 2890 fps | 98.8% |
| Norma URP | <<locked>> | 96% | 58,726 psi | 90% | 2877 fps | 100% |
| Ramshot Big Game | <<locked>> | 86% | 57,261 psi | 88% | 2825 fps | 100% |
| Ramshot Hunter | <<locked>> | 96% | 57,290 psi | 88% | 2874 fps | 99.7% |
| Ramshot TAC | <<locked>> | 82% | 57,464 psi | 88% | 2785 fps | 99.8% |
| Ramshot Wild Boar | <<locked>> | 82% | 57,653 psi | 89% | 2802 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 37,159 psi | 57% | 1745 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 88% | 58,465 psi | 90% | 2812 fps | 99.6% |
| ReloadSwiss RS 52 | <<locked>> | 84% | 58,334 psi | 90% | 2881 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 90% | 58,044 psi | 89% | 2913 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 94% | 55,970 psi | 86% | 2861 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 96% | 58,291 psi | 90% | 2943 fps | 100% |
| Rottweil R 902 | <<locked>> | 86% | 58,523 psi | 90% | 2759 fps | 100% |
| Rottweil R 903 | <<locked>> | 90% | 58,262 psi | 90% | 2805 fps | 100% |
| Rottweil R 904 | <<locked>> | 98% | 55,564 psi | 86% | 2792 fps | 96.6% |
| Rottweil R 905ᴾ | <<locked>> | 100% | 55,738 psi | 86% | 2851 fps | 98% |
| Rottweil R 907 | <<locked>> | 92% | 57,421 psi | 88% | 2792 fps | 98.8% |
| Shooters World Long Rifle | <<locked>> | 92% | 55,564 psi | 86% | 2762 fps | 99.6% |
| Shooters World Match Rifle | <<locked>> | 82% | 55,738 psi | 86% | 2740 fps | 100% |
| Shooters World Precision | <<locked>> | 86% | 56,289 psi | 87% | 2749 fps | 100% |
| Shooters World SW4350 | <<locked>> | 94% | 56,869 psi | 88% | 2805 fps | 99.2% |
| SNPE Vectan SP 11 | <<locked>> | 88% | 55,782 psi | 86% | 2812 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 82% | 56,652 psi | 87% | 2772 fps | 99.9% |
| SNPE Vectan SP 9 | <<locked>> | 84% | 57,217 psi | 88% | 2789 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 84% | 58,450 psi | 90% | 2687 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 88% | 55,622 psi | 86% | 2644 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 92% | 55,317 psi | 85% | 2717 fps | 98.9% |
| SNPE Vectan Tubal 8000ᴾ | <<locked>> | 100% | 55,230 psi | 85% | 2844 fps | 97.9% |
| Somchem S335 | <<locked>> | 84% | 58,059 psi | 89% | 2684 fps | 100% |
| Somchem S341 | <<locked>> | 82% | 55,956 psi | 86% | 2753 fps | 100% |
| Somchem S355 | <<locked>> | 90% | 57,914 psi | 89% | 2799 fps | 100% |
| Somchem S361 | <<locked>> | 98% | 57,392 psi | 88% | 2785 fps | 96.1% |
| Somchem S365 | <<locked>> | 98% | 57,667 psi | 89% | 2877 fps | 100% |
| Somchem S385ᴾ | <<locked>> | 100% | 56,463 psi | 87% | 2828 fps | 98.7% |
| Vihtavuori N133 | <<locked>> | 82% | 55,622 psi | 86% | 2628 fps | 100% |
| Vihtavuori N135 | <<locked>> | 86% | 58,610 psi | 90% | 2717 fps | 100% |
| Vihtavuori N140 | <<locked>> | 84% | 55,419 psi | 85% | 2690 fps | 100% |
| Vihtavuori N150 | <<locked>> | 90% | 55,883 psi | 86% | 2730 fps | 100% |
| Vihtavuori N160 | <<locked>> | 94% | 57,217 psi | 88% | 2815 fps | 100% |
| Vihtavuori N165ᴾ | <<locked>> | 100% | 48,791 psi | 75% | 2697 fps | 97.1% |
| Vihtavuori N530 | <<locked>> | 82% | 57,885 psi | 89% | 2756 fps | 100% |
| Vihtavuori N540 | <<locked>> | 86% | 56,855 psi | 88% | 2733 fps | 100% |
| Vihtavuori N550 | <<locked>> | 94% | 56,507 psi | 87% | 2825 fps | 100% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 52,997 psi | 82% | 2831 fps | 100% |
| Winchester 6.5 StaBALL | <<locked>> | 94% | 56,855 psi | 88% | 2785 fps | 100% |
| Winchester 748 | <<locked>> | 82% | 58,624 psi | 90% | 2808 fps | 100% |
| Winchester 760 | <<locked>> | 92% | 55,129 psi | 85% | 2838 fps | 99% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 42,801 psi | 66% | 2802 fps | 100% |
| Winchester StaBALL Match | <<locked>> | 84% | 57,276 psi | 88% | 2795 fps | 100% |
| Winchester Supreme 780ᴾ | <<locked>> | 100% | 52,939 psi | 81% | 2766 fps | 97.2% |
Recommended = one of the top powders for this cartridge and bullet combination.
Start Load
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2495 | <<locked>> | 80% | 50,212 psi | 77% | 2605 fps | 100% |
| Accurate 2700 | <<locked>> | 80% | 47,500 psi | 73% | 2595 fps | 96.9% |
| Accurate 3100 | <<locked>> | 88% | 34,345 psi | 53% | 2428 fps | 95.1% |
| Accurate 4064 | <<locked>> | 80% | 47,514 psi | 73% | 2612 fps | 100% |
| Accurate 4350 | <<locked>> | 80% | 35,708 psi | 55% | 2470 fps | 97.4% |
| ADI AR 2206H | <<locked>> | 80% | 52,011 psi | 80% | 2717 fps | 100% |
| ADI AR 2208 | <<locked>> | 80% | 44,295 psi | 68% | 2572 fps | 99.5% |
| ADI AR 2209 | <<locked>> | 92% | 44,425 psi | 68% | 2654 fps | 95.1% |
| ADI Benchmark 8208 | <<locked>> | 80% | 53,925 psi | 83% | 2710 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 48,109 psi | 74% | 2772 fps | 99.9% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 44,788 psi | 69% | 2602 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 80% | 47,645 psi | 73% | 2664 fps | 99.8% |
| Alliant Reloder-16 | 43.5 gr | 80% | 35,012 psi | 54% | 2477 fps | 97.5% |
| Alliant Reloder-17 | <<locked>> | 80% | 39,102 psi | 60% | 2598 fps | 99.6% |
| Alliant Reloder-19 | <<locked>> | 92% | 43,990 psi | 68% | 2648 fps | 95.2% |
| Alliant Reloder-22 | <<locked>> | 96% | 43,990 psi | 68% | 2694 fps | 95.4% |
| Alliant Reloder-23 | <<locked>> | 80% | 26,063 psi | 40% | 2251 fps | 95% |
| Alliant Reloder-25 | <<locked>> | 94% | 34,896 psi | 54% | 2513 fps | 95.7% |
| Alliant Reloder-26 | <<locked>> | 84% | 31,212 psi | 48% | 2461 fps | 95% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 51,474 psi | 79% | 2726 fps | 99.9% |
| Bofors RP15 | <<locked>> | 98% | 43,395 psi | 67% | 2680 fps | 95% |
| Bofors RP3 | <<locked>> | 80% | 45,092 psi | 69% | 2612 fps | 100% |
| Bofors RP5 | <<locked>> | 96% | 43,990 psi | 68% | 2694 fps | 95.4% |
| Bofors RP7 | <<locked>> | 80% | 39,943 psi | 61% | 2484 fps | 95.2% |
| Hodgdon Benchmark | <<locked>> | 80% | 55,216 psi | 85% | 2687 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 80% | 53,780 psi | 83% | 2743 fps | 100% |
| Hodgdon H380 | <<locked>> | 80% | 45,440 psi | 70% | 2618 fps | 99% |
| Hodgdon H414 | <<locked>> | 80% | 37,420 psi | 58% | 2510 fps | 95.1% |
| Hodgdon H4350 | <<locked>> | 82% | 42,902 psi | 66% | 2579 fps | 95.3% |
| Hodgdon H4895 | <<locked>> | 80% | 52,576 psi | 81% | 2723 fps | 100% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 32,576 psi | 50% | 2382 fps | 98.2% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 48,965 psi | 75% | 2707 fps | 100% |
| Hodgdon Superformance | 50.7 gr | 82% | 38,928 psi | 60% | 2569 fps | 95% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,180 psi | 42% | 1519 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 50,299 psi | 77% | 2677 fps | 100% |
| IMR 3031 | <<locked>> | 80% | 53,055 psi | 82% | 2703 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 46,557 psi | 72% | 2605 fps | 99.8% |
| IMR 4166 Enduron | <<locked>> | 80% | 48,907 psi | 75% | 2631 fps | 98% |
| IMR 4350 | <<locked>> | 84% | 40,219 psi | 62% | 2513 fps | 95.3% |
| IMR 4451 Enduron | <<locked>> | 80% | 41,147 psi | 63% | 2513 fps | 96.1% |
| IMR 4831 | <<locked>> | 80% | 34,330 psi | 53% | 2425 fps | 97.1% |
| IMR 4895 | <<locked>> | 80% | 48,863 psi | 75% | 2690 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 98% | 53,592 psi | 82% | 2753 fps | 95.6% |
| IMR 8208 XBR | <<locked>> | 80% | 53,925 psi | 83% | 2710 fps | 100% |
| Lovex D073.6 | <<locked>> | 80% | 52,417 psi | 81% | 2694 fps | 100% |
| Lovex S060 | <<locked>> | 80% | 51,111 psi | 79% | 2641 fps | 100% |
| Lovex S062 | <<locked>> | 80% | 46,963 psi | 72% | 2608 fps | 100% |
| Lovex S065 | <<locked>> | 80% | 39,073 psi | 60% | 2470 fps | 97% |
| Lovex S070 | <<locked>> | 80% | 37,144 psi | 57% | 2448 fps | 95.2% |
| Lovex S071 | <<locked>> | 94% | 35,346 psi | 54% | 2451 fps | 95.5% |
| Norma 201 | <<locked>> | 80% | 51,401 psi | 79% | 2667 fps | 100% |
| Norma 202 | <<locked>> | 80% | 51,619 psi | 79% | 2664 fps | 100% |
| Norma 203B | <<locked>> | 80% | 47,050 psi | 72% | 2651 fps | 99.9% |
| Norma 204 | <<locked>> | 88% | 45,223 psi | 70% | 2651 fps | 95.3% |
| Norma MRP | <<locked>> | 90% | 38,145 psi | 59% | 2602 fps | 95% |
| Norma URP | <<locked>> | 80% | 35,389 psi | 54% | 2464 fps | 97.2% |
| Ramshot Big Game | <<locked>> | 80% | 46,920 psi | 72% | 2671 fps | 99.9% |
| Ramshot Hunter | <<locked>> | 82% | 36,608 psi | 56% | 2500 fps | 95.8% |
| Ramshot TAC | <<locked>> | 80% | 53,940 psi | 83% | 2733 fps | 99.6% |
| Ramshot Wild Boar | <<locked>> | 80% | 54,085 psi | 83% | 2749 fps | 100% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,702 psi | 43% | 1555 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 45,339 psi | 70% | 2598 fps | 97.8% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 51,184 psi | 79% | 2776 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 41,466 psi | 64% | 2651 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 35,273 psi | 54% | 2487 fps | 97% |
| ReloadSwiss RS 70 | 47.5 gr | 80% | 34,389 psi | 53% | 2484 fps | 96% |
| Rottweil R 902 | <<locked>> | 80% | 48,849 psi | 75% | 2618 fps | 100% |
| Rottweil R 903 | <<locked>> | 80% | 42,453 psi | 65% | 2559 fps | 99.8% |
| Rottweil R 904 | <<locked>> | 94% | 49,066 psi | 76% | 2687 fps | 95.2% |
| Rottweil R 905 | <<locked>> | 92% | 42,917 psi | 66% | 2631 fps | 95.1% |
| Rottweil R 907 | <<locked>> | 80% | 39,943 psi | 61% | 2484 fps | 95.2% |
| Shooters World Long Rifle | <<locked>> | 80% | 39,073 psi | 60% | 2470 fps | 97% |
| Shooters World Match Rifle | <<locked>> | 80% | 52,417 psi | 81% | 2694 fps | 100% |
| Shooters World Precision | <<locked>> | 80% | 46,963 psi | 72% | 2608 fps | 100% |
| Shooters World SW4350 | <<locked>> | 80% | 37,144 psi | 57% | 2448 fps | 95.2% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 43,221 psi | 67% | 2608 fps | 99.6% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 53,055 psi | 82% | 2717 fps | 99.7% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 50,546 psi | 78% | 2690 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 51,938 psi | 80% | 2598 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 43,830 psi | 67% | 2474 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 38,101 psi | 59% | 2411 fps | 95.3% |
| SNPE Vectan Tubal 8000 | <<locked>> | 92% | 42,511 psi | 65% | 2628 fps | 95% |
| Somchem S335 | <<locked>> | 80% | 51,909 psi | 80% | 2602 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 52,402 psi | 81% | 2703 fps | 100% |
| Somchem S355 | <<locked>> | 80% | 43,018 psi | 66% | 2562 fps | 99.8% |
| Somchem S361 | <<locked>> | 96% | 53,780 psi | 83% | 2730 fps | 95.3% |
| Somchem S365 | <<locked>> | 80% | 32,140 psi | 49% | 2428 fps | 99.2% |
| Somchem S385 | <<locked>> | 90% | 41,321 psi | 64% | 2569 fps | 95.6% |
| Vihtavuori N133 | <<locked>> | 80% | 52,344 psi | 81% | 2585 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 48,849 psi | 75% | 2585 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 48,820 psi | 75% | 2595 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 40,770 psi | 63% | 2490 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 36,782 psi | 57% | 2461 fps | 97.5% |
| Vihtavuori N165 | <<locked>> | 96% | 43,047 psi | 66% | 2592 fps | 95.6% |
| Vihtavuori N530 | <<locked>> | 80% | 54,360 psi | 84% | 2710 fps | 100% |
| Vihtavuori N540 | <<locked>> | 80% | 47,326 psi | 73% | 2595 fps | 100% |
| Vihtavuori N550 | <<locked>> | 80% | 36,434 psi | 56% | 2467 fps | 97.3% |
| Vihtavuori N555 | <<locked>> | 80% | 28,282 psi | 44% | 2326 fps | 95.2% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 35,984 psi | 55% | 2434 fps | 99.1% |
| Winchester 748 | <<locked>> | 80% | 54,839 psi | 84% | 2759 fps | 100% |
| Winchester 760 | <<locked>> | 80% | 37,420 psi | 58% | 2510 fps | 95.1% |
| Winchester StaBALL HD | <<locked>> | 84% | 26,034 psi | 40% | 2326 fps | 95.5% |
| Winchester StaBALL Match | <<locked>> | 80% | 50,502 psi | 78% | 2697 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 96% | 46,253 psi | 71% | 2657 fps | 95.7% |
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 119 powders for 7-6.5 PRCW loaded with the .284 | 156gr | Lapua Naturalis. ReloadSwiss RS 70 delivers the highest muzzle velocity at 2,943 fps; across all powders the maximum-charge window runs from 1,703 fps to 2,943 fps. Accurate 3100 gives the best case fill at 100 %, and 119 of the 119 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (448 MPa), the top charges use 52–90 %, leaving at least 10 % headroom. The 155.0 gr projectile in 0.284" calls for a 1:10.0 twist; slower twists will usually not stabilise this weight. Accurate 3100, Accurate MAGPRO, ADI AR 2209 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-16, Hodgdon Superformance rank at the top here: for 7-6.5 PRCW with the .284 | 156gr | Lapua Naturalis they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, Accurate MAGPRO, ADI AR 2225, Baschieri & Pellagri 109 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.