Load Specifications
Load data in caliber 7-6.5 PRCW with .284 | 175gr | Woodleigh PP SN bullet and 99 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 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>> | 82% | 56,275 psi | 87% | 2539 fps | 100% |
| Accurate 2700 | <<locked>> | 84% | 56,985 psi | 88% | 2612 fps | 99.5% |
| Accurate 3100ᴾ | <<locked>> | 100% | 54,969 psi | 85% | 2661 fps | 99.9% |
| Accurate 4064 | <<locked>> | 84% | 56,652 psi | 87% | 2592 fps | 100% |
| Accurate 4350 | <<locked>> | 92% | 57,406 psi | 88% | 2700 fps | 100% |
| Accurate MAGPROᴾ | <<locked>> | 100% | 57,334 psi | 88% | 2805 fps | 97.5% |
| ADI AR 2208 | <<locked>> | 86% | 56,434 psi | 87% | 2621 fps | 100% |
| ADI AR 2209 | <<locked>> | 98% | 58,204 psi | 90% | 2749 fps | 99.2% |
| ADI AR 2213ᴾ | <<locked>> | 100% | 55,666 psi | 86% | 2746 fps | 98.1% |
| ADI AR 2225ᴾ | <<locked>> | 100% | 35,795 psi | 55% | 2431 fps | 96.1% |
| Alliant Power Pro 2000-MR | <<locked>> | 82% | 55,927 psi | 86% | 2743 fps | 100% |
| Alliant Reloder- TS 15.5 | <<locked>> | 86% | 57,232 psi | 88% | 2641 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 84% | 57,566 psi | 89% | 2667 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 94% | 57,827 psi | 89% | 2749 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 88% | 55,695 psi | 86% | 2723 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 98% | 57,421 psi | 88% | 2736 fps | 99.2% |
| Alliant Reloder-22ᴾ | <<locked>> | 100% | 54,578 psi | 84% | 2743 fps | 99% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 51,764 psi | 80% | 2674 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 44,918 psi | 69% | 2615 fps | 99.8% |
| Alliant Reloder-26 | <<locked>> | 98% | 55,347 psi | 85% | 2808 fps | 100% |
| Bofors RP15ᴾ | <<locked>> | 100% | 50,125 psi | 77% | 2674 fps | 98.3% |
| Bofors RP3 | <<locked>> | 86% | 58,131 psi | 89% | 2657 fps | 100% |
| Bofors RP5ᴾ | <<locked>> | 100% | 54,578 psi | 84% | 2743 fps | 99% |
| Bofors RP7 | <<locked>> | 90% | 57,334 psi | 88% | 2651 fps | 99.6% |
| Hodgdon H1000ᴾ | <<locked>> | 100% | 44,744 psi | 69% | 2559 fps | 96.4% |
| Hodgdon H380 | <<locked>> | 86% | 58,726 psi | 90% | 2680 fps | 100% |
| Hodgdon H414 | <<locked>> | 90% | 55,782 psi | 86% | 2703 fps | 99.8% |
| Hodgdon H4350 | <<locked>> | 88% | 55,535 psi | 85% | 2664 fps | 99.1% |
| Hodgdon H4831 | <<locked>> | 98% | 55,738 psi | 86% | 2690 fps | 97.4% |
| Hodgdon H4831 SCᴾ | <<locked>> | 100% | 58,450 psi | 90% | 2730 fps | 97.9% |
| Hodgdon Hybrid 100V | <<locked>> | 96% | 58,363 psi | 90% | 2677 fps | 100% |
| Hodgdon LEVERevolution | <<locked>> | 82% | 56,144 psi | 86% | 2657 fps | 100% |
| Hodgdon Retumboᴾ | <<locked>> | 100% | 43,961 psi | 68% | 2648 fps | 97.8% |
| Hodgdon Superformance | <<locked>> | 90% | 55,912 psi | 86% | 2740 fps | 99.7% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,637 psi | 56% | 1614 fps | 100% |
| Hodgdon VARGET | <<locked>> | 82% | 56,782 psi | 87% | 2621 fps | 100% |
| IMR 4064 | <<locked>> | 84% | 55,898 psi | 86% | 2605 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 84% | 58,639 psi | 90% | 2644 fps | 99.9% |
| IMR 4350 | <<locked>> | 94% | 58,305 psi | 90% | 2684 fps | 99.7% |
| IMR 4451 Enduron | <<locked>> | 88% | 55,724 psi | 86% | 2631 fps | 99.7% |
| IMR 4831 | <<locked>> | 94% | 57,696 psi | 89% | 2694 fps | 100% |
| IMR 4895 | <<locked>> | 82% | 55,579 psi | 86% | 2644 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 98% | 57,479 psi | 88% | 2680 fps | 97.9% |
| IMR 7828 SSCᴾ | <<locked>> | 100% | 52,953 psi | 81% | 2720 fps | 97.7% |
| Lovex S060 | <<locked>> | 82% | 57,319 psi | 88% | 2589 fps | 100% |
| Lovex S062 | <<locked>> | 84% | 56,144 psi | 86% | 2598 fps | 100% |
| Lovex S065 | <<locked>> | 90% | 55,825 psi | 86% | 2628 fps | 100% |
| Lovex S070 | <<locked>> | 92% | 56,956 psi | 88% | 2667 fps | 99.9% |
| Lovex S071ᴾ | <<locked>> | 100% | 45,687 psi | 70% | 2523 fps | 99.3% |
| Norma 201 | <<locked>> | 82% | 57,580 psi | 89% | 2608 fps | 100% |
| Norma 202 | <<locked>> | 82% | 58,131 psi | 89% | 2598 fps | 100% |
| Norma 203B | <<locked>> | 84% | 56,840 psi | 87% | 2654 fps | 100% |
| Norma 204 | <<locked>> | 92% | 55,651 psi | 86% | 2690 fps | 98.8% |
| Norma MRPᴾ | <<locked>> | 100% | 57,986 psi | 89% | 2822 fps | 99.9% |
| Norma URP | <<locked>> | 92% | 55,767 psi | 86% | 2684 fps | 100% |
| Ramshot Big Game | <<locked>> | 84% | 57,754 psi | 89% | 2680 fps | 100% |
| Ramshot Grandᴾ | <<locked>> | 100% | 53,592 psi | 82% | 2740 fps | 98.1% |
| Ramshot Hunter | <<locked>> | 94% | 58,102 psi | 89% | 2740 fps | 100% |
| Ramshot Magnumᴾ | <<locked>> | 100% | 47,601 psi | 73% | 2621 fps | 98.5% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 37,173 psi | 57% | 1650 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 86% | 58,552 psi | 90% | 2671 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 86% | 55,172 psi | 85% | 2713 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 92% | 57,232 psi | 88% | 2726 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 92% | 55,579 psi | 86% | 2756 fps | 100% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 43,816 psi | 67% | 2644 fps | 98.7% |
| Rottweil R 902 | <<locked>> | 84% | 58,175 psi | 90% | 2608 fps | 100% |
| Rottweil R 903 | <<locked>> | 88% | 58,334 psi | 90% | 2654 fps | 100% |
| Rottweil R 904 | <<locked>> | 96% | 56,217 psi | 87% | 2667 fps | 98.2% |
| Rottweil R 905 | <<locked>> | 98% | 56,826 psi | 87% | 2726 fps | 99.2% |
| Rottweil R 907 | <<locked>> | 90% | 57,334 psi | 88% | 2651 fps | 99.6% |
| Shooters World Long Rifle | <<locked>> | 90% | 55,825 psi | 86% | 2628 fps | 100% |
| Shooters World Precision | <<locked>> | 84% | 56,144 psi | 86% | 2598 fps | 100% |
| Shooters World SW4350 | <<locked>> | 92% | 56,956 psi | 88% | 2667 fps | 99.9% |
| SNPE Vectan SP 11 | <<locked>> | 86% | 56,246 psi | 87% | 2667 fps | 100% |
| SNPE Vectan SP 9 | <<locked>> | 82% | 57,305 psi | 88% | 2638 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 82% | 58,320 psi | 90% | 2536 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 86% | 55,709 psi | 86% | 2497 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 90% | 55,405 psi | 85% | 2585 fps | 99.7% |
| SNPE Vectan Tubal 8000 | <<locked>> | 98% | 56,333 psi | 87% | 2723 fps | 99.2% |
| Somchem S335 | <<locked>> | 82% | 57,943 psi | 89% | 2533 fps | 100% |
| Somchem S355 | <<locked>> | 88% | 58,276 psi | 90% | 2651 fps | 100% |
| Somchem S361 | <<locked>> | 96% | 58,044 psi | 89% | 2664 fps | 97.7% |
| Somchem S365 | <<locked>> | 94% | 55,187 psi | 85% | 2684 fps | 100% |
| Somchem S385 | <<locked>> | 98% | 57,392 psi | 88% | 2703 fps | 99.6% |
| Vihtavuori N135 | <<locked>> | 84% | 58,566 psi | 90% | 2562 fps | 100% |
| Vihtavuori N140 | <<locked>> | 82% | 55,361 psi | 85% | 2539 fps | 100% |
| Vihtavuori N150 | <<locked>> | 88% | 55,927 psi | 86% | 2582 fps | 100% |
| Vihtavuori N160 | <<locked>> | 92% | 58,030 psi | 89% | 2677 fps | 100% |
| Vihtavuori N165ᴾ | <<locked>> | 100% | 52,953 psi | 81% | 2628 fps | 99% |
| Vihtavuori N540 | <<locked>> | 84% | 56,782 psi | 87% | 2579 fps | 100% |
| Vihtavuori N550 | <<locked>> | 92% | 56,985 psi | 88% | 2684 fps | 100% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 57,856 psi | 89% | 2743 fps | 100% |
| Vihtavuori N560ᴾ | <<locked>> | 100% | 58,233 psi | 90% | 2812 fps | 98.2% |
| Vihtavuori N565ᴾ | <<locked>> | 100% | 46,398 psi | 71% | 2618 fps | 96.1% |
| Winchester 6.5 StaBALL | <<locked>> | 92% | 57,493 psi | 88% | 2644 fps | 100% |
| Winchester 760 | <<locked>> | 90% | 55,782 psi | 86% | 2703 fps | 99.8% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 46,586 psi | 72% | 2736 fps | 100% |
| Winchester StaBALL Match | <<locked>> | 82% | 57,522 psi | 89% | 2648 fps | 100% |
| Winchester Supreme 780ᴾ | <<locked>> | 100% | 57,595 psi | 89% | 2700 fps | 99.1% |
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% | 52,808 psi | 81% | 2493 fps | 100% |
| Accurate 2700 | <<locked>> | 80% | 50,198 psi | 77% | 2513 fps | 98.7% |
| Accurate 3100 | <<locked>> | 82% | 30,081 psi | 46% | 2208 fps | 95.1% |
| Accurate 4064 | <<locked>> | 80% | 50,067 psi | 77% | 2503 fps | 100% |
| Accurate 4350 | <<locked>> | 80% | 38,101 psi | 59% | 2395 fps | 99.1% |
| Accurate MAGPRO | <<locked>> | 94% | 46,369 psi | 71% | 2628 fps | 95.1% |
| ADI AR 2208 | <<locked>> | 80% | 46,920 psi | 72% | 2484 fps | 100% |
| ADI AR 2209 | <<locked>> | 86% | 39,523 psi | 61% | 2434 fps | 95.5% |
| ADI AR 2213 | <<locked>> | 94% | 45,658 psi | 70% | 2579 fps | 95.8% |
| ADI AR 2225 | <<locked>> | 98% | 33,692 psi | 52% | 2375 fps | 95% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 52,112 psi | 80% | 2687 fps | 100% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 47,587 psi | 73% | 2507 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 80% | 50,618 psi | 78% | 2569 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 80% | 37,217 psi | 57% | 2408 fps | 99.3% |
| Alliant Reloder-17 | <<locked>> | 80% | 41,974 psi | 65% | 2516 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 86% | 39,131 psi | 60% | 2428 fps | 95.5% |
| Alliant Reloder-22 | <<locked>> | 90% | 39,247 psi | 60% | 2474 fps | 95.8% |
| Alliant Reloder-23 | <<locked>> | 80% | 27,354 psi | 42% | 2192 fps | 97.7% |
| Alliant Reloder-25 | <<locked>> | 88% | 30,879 psi | 48% | 2300 fps | 95.9% |
| Alliant Reloder-26 | 48.4 gr | 80% | 28,993 psi | 45% | 2290 fps | 96% |
| Bofors RP15 | <<locked>> | 92% | 38,740 psi | 60% | 2464 fps | 95.4% |
| Bofors RP3 | <<locked>> | 80% | 47,848 psi | 74% | 2516 fps | 100% |
| Bofors RP5 | <<locked>> | 90% | 39,247 psi | 60% | 2474 fps | 95.8% |
| Bofors RP7 | <<locked>> | 80% | 42,119 psi | 65% | 2405 fps | 97.4% |
| Hodgdon H1000 | <<locked>> | 98% | 41,742 psi | 64% | 2500 fps | 95.4% |
| Hodgdon H380 | <<locked>> | 80% | 48,182 psi | 74% | 2530 fps | 99.9% |
| Hodgdon H414 | <<locked>> | 80% | 40,074 psi | 62% | 2438 fps | 97.5% |
| Hodgdon H4350 | <<locked>> | 80% | 42,931 psi | 66% | 2454 fps | 96.9% |
| Hodgdon H4831 | <<locked>> | 92% | 45,716 psi | 70% | 2533 fps | 95.2% |
| Hodgdon H4831 SC | <<locked>> | 92% | 44,933 psi | 69% | 2516 fps | 95% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 34,780 psi | 54% | 2306 fps | 99.6% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 52,504 psi | 81% | 2608 fps | 100% |
| Hodgdon Retumbo | <<locked>> | 96% | 38,638 psi | 59% | 2530 fps | 95.9% |
| Hodgdon Superformance | 49.9 gr | 80% | 38,856 psi | 60% | 2451 fps | 96.8% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,398 psi | 42% | 1440 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 53,403 psi | 82% | 2575 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 49,385 psi | 76% | 2513 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 80% | 51,692 psi | 80% | 2543 fps | 99.4% |
| IMR 4350 | <<locked>> | 80% | 37,782 psi | 58% | 2343 fps | 96.2% |
| IMR 4451 Enduron | <<locked>> | 80% | 43,526 psi | 67% | 2434 fps | 98.1% |
| IMR 4831 | <<locked>> | 80% | 36,593 psi | 56% | 2349 fps | 98.9% |
| IMR 4895 | <<locked>> | 80% | 51,938 psi | 80% | 2592 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 90% | 44,802 psi | 69% | 2480 fps | 95.2% |
| IMR 7828 SSC | <<locked>> | 94% | 43,685 psi | 67% | 2556 fps | 95.4% |
| Lovex S060 | <<locked>> | 80% | 53,969 psi | 83% | 2543 fps | 100% |
| Lovex S062 | <<locked>> | 80% | 49,661 psi | 76% | 2507 fps | 100% |
| Lovex S065 | <<locked>> | 80% | 41,176 psi | 63% | 2392 fps | 98.7% |
| Lovex S070 | <<locked>> | 80% | 39,436 psi | 61% | 2375 fps | 97.5% |
| Lovex S071 | <<locked>> | 88% | 31,386 psi | 48% | 2241 fps | 95.7% |
| Norma 201 | <<locked>> | 80% | 54,172 psi | 83% | 2562 fps | 100% |
| Norma 202 | <<locked>> | 80% | 54,694 psi | 84% | 2556 fps | 100% |
| Norma 203B | <<locked>> | 80% | 50,009 psi | 77% | 2556 fps | 100% |
| Norma 204 | <<locked>> | 82% | 39,813 psi | 61% | 2421 fps | 95.5% |
| Norma MRP | <<locked>> | 84% | 33,518 psi | 52% | 2372 fps | 95.1% |
| Norma URP | <<locked>> | 80% | 38,072 psi | 59% | 2392 fps | 99% |
| Ramshot Big Game | <<locked>> | 80% | 50,531 psi | 78% | 2582 fps | 100% |
| Ramshot Grand | <<locked>> | 94% | 43,381 psi | 67% | 2562 fps | 95.7% |
| Ramshot Hunter | <<locked>> | 80% | 36,724 psi | 57% | 2382 fps | 97.4% |
| Ramshot Magnum | <<locked>> | 92% | 35,897 psi | 55% | 2392 fps | 95.1% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,949 psi | 43% | 1476 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 48,327 psi | 74% | 2520 fps | 99.3% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 44,599 psi | 69% | 2562 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 37,913 psi | 58% | 2415 fps | 98.9% |
| ReloadSwiss RS 70 | 48 gr | 80% | 36,753 psi | 57% | 2425 fps | 98.5% |
| ReloadSwiss RS 76 | <<locked>> | 94% | 35,694 psi | 55% | 2461 fps | 95.9% |
| Rottweil R 902 | <<locked>> | 80% | 51,430 psi | 79% | 2516 fps | 100% |
| Rottweil R 903 | <<locked>> | 80% | 45,310 psi | 70% | 2474 fps | 100% |
| Rottweil R 904 | <<locked>> | 88% | 43,526 psi | 67% | 2464 fps | 95.5% |
| Rottweil R 905 | <<locked>> | 86% | 38,319 psi | 59% | 2415 fps | 95.5% |
| Rottweil R 907 | <<locked>> | 80% | 42,119 psi | 65% | 2405 fps | 97.4% |
| Shooters World Long Rifle | <<locked>> | 80% | 41,176 psi | 63% | 2392 fps | 98.7% |
| Shooters World Precision | <<locked>> | 80% | 49,661 psi | 76% | 2507 fps | 100% |
| Shooters World SW4350 | <<locked>> | 80% | 39,436 psi | 61% | 2375 fps | 97.5% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 46,209 psi | 71% | 2523 fps | 100% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 53,664 psi | 83% | 2592 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 54,781 psi | 84% | 2493 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 46,383 psi | 71% | 2375 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 40,089 psi | 62% | 2336 fps | 97.5% |
| SNPE Vectan Tubal 8000 | <<locked>> | 86% | 37,985 psi | 58% | 2408 fps | 95.3% |
| Somchem S335 | <<locked>> | 80% | 54,621 psi | 84% | 2493 fps | 100% |
| Somchem S355 | <<locked>> | 80% | 45,556 psi | 70% | 2470 fps | 100% |
| Somchem S361 | <<locked>> | 90% | 47,616 psi | 73% | 2510 fps | 95.6% |
| Somchem S365 | <<locked>> | 80% | 34,432 psi | 53% | 2352 fps | 100% |
| Somchem S385 | <<locked>> | 84% | 36,390 psi | 56% | 2346 fps | 95.7% |
| Vihtavuori N135 | <<locked>> | 80% | 51,880 psi | 80% | 2480 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 52,054 psi | 80% | 2497 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 43,526 psi | 67% | 2405 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 39,247 psi | 60% | 2385 fps | 99.2% |
| Vihtavuori N165 | <<locked>> | 88% | 35,694 psi | 55% | 2326 fps | 95% |
| Vihtavuori N540 | <<locked>> | 80% | 50,096 psi | 77% | 2493 fps | 100% |
| Vihtavuori N550 | <<locked>> | 80% | 38,725 psi | 60% | 2388 fps | 99% |
| Vihtavuori N555 | <<locked>> | 80% | 30,226 psi | 47% | 2260 fps | 97.7% |
| Vihtavuori N560 | <<locked>> | 92% | 44,411 psi | 68% | 2585 fps | 95.2% |
| Vihtavuori N565 | <<locked>> | 98% | 43,497 psi | 67% | 2566 fps | 95.3% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 38,421 psi | 59% | 2362 fps | 100% |
| Winchester 760 | <<locked>> | 80% | 40,292 psi | 62% | 2444 fps | 97.6% |
| Winchester StaBALL HD | <<locked>> | 80% | 24,076 psi | 37% | 2165 fps | 96.6% |
| Winchester StaBALL Match | <<locked>> | 80% | 53,809 psi | 83% | 2598 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 88% | 38,130 psi | 59% | 2382 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 105 powders for 7-6.5 PRCW loaded with the .284 | 175gr | Woodleigh PP SN. Norma MRP delivers the highest muzzle velocity at 2,822 fps; across all powders the maximum-charge window runs from 1,614 fps to 2,822 fps. Accurate 3100 gives the best case fill at 100 %, and 105 of the 105 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 175.0 gr projectile in 0.284" calls for a 1:11.5 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, Hodgdon Superformance rank at the top here: for 7-6.5 PRCW with the .284 | 175gr | Woodleigh PP SN they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, ADI AR 2217, Baschieri & Pellagri 109, Norma 217 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.