Load Specifications
Bullet Manufacturer:Sierra
Bullet Weight:183 gr
Bullet Diameter:0.284"
Bullet Length:<<locked>>
Caliber:7-6.5 PRCW load data
Case Length (l3):2.03"
Cartridge Length (C.O.L.):<<locked>>
Case Capacity:68 Grains of Water
Primer Size:Large Rifle (LR)
Max. allowed Pressure:64,977 psi
Recommended Twist Rate:1:8.5
Load data in caliber 7-6.5 PRCW with .284 | 183gr | Sierra MatchKing bullet and 107 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 H414.
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% | 58,146 psi | 89% | 2480 fps | 100% |
| Accurate 2700 | <<locked>> | 84% | 55,448 psi | 85% | 2510 fps | 99.3% |
| Accurate 3100ᴾ | <<locked>> | 100% | 52,678 psi | 81% | 2552 fps | 99.9% |
| Accurate 4064 | <<locked>> | 86% | 58,349 psi | 90% | 2533 fps | 100% |
| Accurate 4350 | <<locked>> | 92% | 55,143 psi | 85% | 2595 fps | 100% |
| Accurate High Countryᴾ | <<locked>> | 100% | 57,609 psi | 89% | 2740 fps | 98.7% |
| Accurate MAGPROᴾ | <<locked>> | 100% | 54,534 psi | 84% | 2684 fps | 97.1% |
| ADI AR 2206H | <<locked>> | 82% | 57,348 psi | 88% | 2562 fps | 100% |
| ADI AR 2208 | <<locked>> | 88% | 58,436 psi | 90% | 2566 fps | 100% |
| ADI AR 2209 | <<locked>> | 98% | 56,115 psi | 86% | 2638 fps | 99% |
| ADI AR 2213ᴾ | <<locked>> | 100% | 53,693 psi | 83% | 2635 fps | 97.7% |
| Alliant Power Pro 2000-MR | <<locked>> | 84% | 57,856 psi | 89% | 2687 fps | 100% |
| Alliant Reloder- TS 15.5 | <<locked>> | 86% | 55,521 psi | 85% | 2539 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 84% | 55,840 psi | 86% | 2562 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 94% | 55,999 psi | 86% | 2644 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 90% | 57,406 psi | 88% | 2667 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 98% | 55,405 psi | 85% | 2631 fps | 99% |
| Alliant Reloder-22ᴾ | <<locked>> | 100% | 52,446 psi | 81% | 2635 fps | 98.8% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 49,617 psi | 76% | 2569 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 43,105 psi | 66% | 2507 fps | 99.6% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 56,956 psi | 88% | 2749 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 82% | 57,014 psi | 88% | 2579 fps | 100% |
| Bofors RP15ᴾ | <<locked>> | 100% | 47,950 psi | 74% | 2562 fps | 98% |
| Bofors RP3 | <<locked>> | 86% | 56,594 psi | 87% | 2559 fps | 100% |
| Bofors RP5ᴾ | <<locked>> | 100% | 52,446 psi | 81% | 2635 fps | 98.8% |
| Bofors RP7 | <<locked>> | 90% | 55,825 psi | 86% | 2549 fps | 99.5% |
| Hodgdon H380 | <<locked>> | 86% | 56,666 psi | 87% | 2575 fps | 100% |
| Hodgdon H414 | <<locked>> | 92% | 57,493 psi | 88% | 2648 fps | 99.9% |
| Hodgdon H4350 | <<locked>> | 90% | 57,348 psi | 88% | 2608 fps | 99.3% |
| Hodgdon H4831ᴾ | <<locked>> | 100% | 57,421 psi | 88% | 2635 fps | 97.7% |
| Hodgdon H4831 SCᴾ | <<locked>> | 100% | 56,391 psi | 87% | 2618 fps | 97.6% |
| Hodgdon H4895 | <<locked>> | 82% | 57,972 psi | 89% | 2569 fps | 100% |
| Hodgdon Hybrid 100V | <<locked>> | 96% | 56,333 psi | 87% | 2572 fps | 100% |
| Hodgdon LEVERevolution | <<locked>> | 84% | 58,218 psi | 90% | 2605 fps | 100% |
| Hodgdon Retumboᴾ | <<locked>> | 100% | 42,264 psi | 65% | 2539 fps | 97.4% |
| Hodgdon Superformance | <<locked>> | 92% | 57,798 psi | 89% | 2687 fps | 99.8% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,463 psi | 56% | 1549 fps | 100% |
| Hodgdon VARGET | <<locked>> | 82% | 55,245 psi | 85% | 2523 fps | 100% |
| IMR 3031 | <<locked>> | 82% | 58,653 psi | 90% | 2536 fps | 100% |
| IMR 4064 | <<locked>> | 86% | 57,667 psi | 89% | 2546 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 84% | 56,811 psi | 87% | 2539 fps | 99.8% |
| IMR 4350 | <<locked>> | 94% | 56,579 psi | 87% | 2582 fps | 99.6% |
| IMR 4451 Enduron | <<locked>> | 90% | 57,421 psi | 88% | 2572 fps | 99.8% |
| IMR 4831 | <<locked>> | 94% | 55,419 psi | 85% | 2585 fps | 100% |
| IMR 4895 | <<locked>> | 84% | 57,261 psi | 88% | 2585 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 98% | 55,593 psi | 86% | 2575 fps | 97.6% |
| IMR 7828 SSCᴾ | <<locked>> | 100% | 50,952 psi | 78% | 2608 fps | 97.3% |
| Lovex D073.6 | <<locked>> | 82% | 57,812 psi | 89% | 2533 fps | 100% |
| Lovex S060 | <<locked>> | 82% | 56,014 psi | 86% | 2487 fps | 100% |
| Lovex S062 | <<locked>> | 86% | 57,870 psi | 89% | 2539 fps | 100% |
| Lovex S065 | <<locked>> | 92% | 57,522 psi | 89% | 2569 fps | 100% |
| Lovex S070 | <<locked>> | 94% | 58,639 psi | 90% | 2608 fps | 99.9% |
| Lovex S071ᴾ | <<locked>> | 100% | 44,048 psi | 68% | 2425 fps | 99.1% |
| Norma 201 | <<locked>> | 82% | 55,811 psi | 86% | 2503 fps | 100% |
| Norma 202 | <<locked>> | 82% | 56,768 psi | 87% | 2503 fps | 100% |
| Norma 203B | <<locked>> | 84% | 55,129 psi | 85% | 2549 fps | 100% |
| Norma 204 | <<locked>> | 94% | 57,522 psi | 89% | 2635 fps | 99.1% |
| Norma MRPᴾ | <<locked>> | 100% | 55,564 psi | 86% | 2707 fps | 99.8% |
| Norma URP | <<locked>> | 94% | 57,377 psi | 88% | 2625 fps | 100% |
| Ramshot Big Game | <<locked>> | 84% | 55,854 psi | 86% | 2575 fps | 100% |
| Ramshot Grandᴾ | <<locked>> | 100% | 51,169 psi | 79% | 2621 fps | 97.7% |
| Ramshot Hunter | <<locked>> | 94% | 56,246 psi | 87% | 2635 fps | 100% |
| Ramshot Magnumᴾ | <<locked>> | 100% | 45,542 psi | 70% | 2510 fps | 98.1% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 37,028 psi | 57% | 1585 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 86% | 56,797 psi | 87% | 2566 fps | 99.9% |
| ReloadSwiss RS 52 | <<locked>> | 82% | 57,058 psi | 88% | 2628 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 88% | 56,927 psi | 88% | 2657 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 94% | 58,639 psi | 90% | 2664 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 94% | 57,276 psi | 88% | 2697 fps | 100% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 41,916 psi | 65% | 2530 fps | 98.3% |
| Rottweil R 902 | <<locked>> | 84% | 56,507 psi | 87% | 2507 fps | 100% |
| Rottweil R 903 | <<locked>> | 88% | 56,434 psi | 87% | 2552 fps | 100% |
| Rottweil R 904 | <<locked>> | 98% | 57,696 psi | 89% | 2608 fps | 98.4% |
| Rottweil R 905ᴾ | <<locked>> | 100% | 58,146 psi | 89% | 2664 fps | 99.4% |
| Rottweil R 907 | <<locked>> | 90% | 55,825 psi | 86% | 2549 fps | 99.5% |
| Shooters World Long Rifle | <<locked>> | 92% | 57,522 psi | 89% | 2569 fps | 100% |
| Shooters World Match Rifle | <<locked>> | 82% | 57,812 psi | 89% | 2533 fps | 100% |
| Shooters World Precision | <<locked>> | 86% | 57,870 psi | 89% | 2539 fps | 100% |
| Shooters World SW4350 | <<locked>> | 94% | 58,639 psi | 90% | 2608 fps | 99.9% |
| SNPE Vectan SP 11 | <<locked>> | 88% | 58,001 psi | 89% | 2608 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 82% | 58,465 psi | 90% | 2572 fps | 100% |
| SNPE Vectan SP 9 | <<locked>> | 82% | 55,724 psi | 86% | 2539 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 82% | 56,710 psi | 87% | 2434 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 88% | 57,537 psi | 89% | 2441 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 92% | 57,174 psi | 88% | 2526 fps | 99.8% |
| SNPE Vectan Tubal 8000ᴾ | <<locked>> | 100% | 57,638 psi | 89% | 2661 fps | 99.3% |
| Somchem S335 | <<locked>> | 82% | 56,333 psi | 87% | 2434 fps | 100% |
| Somchem S341 | <<locked>> | 82% | 57,986 psi | 89% | 2552 fps | 100% |
| Somchem S355 | <<locked>> | 88% | 56,391 psi | 87% | 2549 fps | 100% |
| Somchem S361 | <<locked>> | 96% | 55,956 psi | 86% | 2556 fps | 97.4% |
| Somchem S365 | <<locked>> | 96% | 56,536 psi | 87% | 2625 fps | 100% |
| Somchem S385 | <<locked>> | 98% | 55,114 psi | 85% | 2592 fps | 99.5% |
| Vihtavuori N133 | <<locked>> | 82% | 57,188 psi | 88% | 2418 fps | 100% |
| Vihtavuori N135 | <<locked>> | 84% | 56,927 psi | 88% | 2464 fps | 100% |
| Vihtavuori N140 | <<locked>> | 84% | 57,058 psi | 88% | 2480 fps | 100% |
| Vihtavuori N150 | <<locked>> | 90% | 57,928 psi | 89% | 2526 fps | 100% |
| Vihtavuori N160 | <<locked>> | 92% | 56,043 psi | 86% | 2572 fps | 100% |
| Vihtavuori N165ᴾ | <<locked>> | 100% | 50,836 psi | 78% | 2520 fps | 98.8% |
| Vihtavuori N540 | <<locked>> | 86% | 58,639 psi | 90% | 2523 fps | 100% |
| Vihtavuori N550 | <<locked>> | 94% | 58,610 psi | 90% | 2625 fps | 100% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 55,535 psi | 85% | 2635 fps | 100% |
| Vihtavuori N560ᴾ | <<locked>> | 100% | 55,985 psi | 86% | 2700 fps | 97.9% |
| Winchester 6.5 StaBALL | <<locked>> | 92% | 55,608 psi | 86% | 2546 fps | 100% |
| Winchester 760 | <<locked>> | 92% | 57,493 psi | 88% | 2648 fps | 99.9% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 44,541 psi | 69% | 2625 fps | 100% |
| Winchester StaBALL Match | <<locked>> | 82% | 55,709 psi | 86% | 2543 fps | 100% |
| Winchester Supreme 780ᴾ | <<locked>> | 100% | 55,274 psi | 85% | 2589 fps | 98.9% |
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% | 51,082 psi | 79% | 2395 fps | 100% |
| Accurate 2700 | <<locked>> | 80% | 48,704 psi | 75% | 2411 fps | 98.5% |
| Accurate 3100 | <<locked>> | 84% | 30,835 psi | 47% | 2165 fps | 95.7% |
| Accurate 4064 | <<locked>> | 80% | 48,428 psi | 75% | 2405 fps | 100% |
| Accurate 4350 | <<locked>> | 80% | 36,767 psi | 57% | 2300 fps | 99% |
| Accurate High Country | <<locked>> | 90% | 40,727 psi | 63% | 2467 fps | 95.1% |
| Accurate MAGPRO | <<locked>> | 96% | 47,529 psi | 73% | 2575 fps | 95.5% |
| ADI AR 2206H | <<locked>> | 80% | 53,708 psi | 83% | 2513 fps | 100% |
| ADI AR 2208 | <<locked>> | 80% | 45,759 psi | 70% | 2388 fps | 100% |
| ADI AR 2209 | <<locked>> | 86% | 38,116 psi | 59% | 2333 fps | 95.1% |
| ADI AR 2213 | <<locked>> | 94% | 44,048 psi | 68% | 2474 fps | 95.4% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 50,401 psi | 78% | 2582 fps | 100% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 46,079 psi | 71% | 2408 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 80% | 49,255 psi | 76% | 2470 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 80% | 35,926 psi | 55% | 2310 fps | 99.1% |
| Alliant Reloder-17 | <<locked>> | 80% | 40,654 psi | 63% | 2421 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 86% | 37,942 psi | 58% | 2333 fps | 95.2% |
| Alliant Reloder-22 | <<locked>> | 90% | 37,840 psi | 58% | 2375 fps | 95.4% |
| Alliant Reloder-23 | <<locked>> | 80% | 26,353 psi | 41% | 2100 fps | 97.4% |
| Alliant Reloder-25 | <<locked>> | 88% | 29,834 psi | 46% | 2208 fps | 95.5% |
| Alliant Reloder-26 | 45.2 gr | 80% | 27,949 psi | 43% | 2198 fps | 95.6% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 53,461 psi | 82% | 2533 fps | 100% |
| Bofors RP15 | <<locked>> | 92% | 37,347 psi | 57% | 2365 fps | 95% |
| Bofors RP3 | <<locked>> | 80% | 46,514 psi | 72% | 2421 fps | 100% |
| Bofors RP5 | <<locked>> | 90% | 37,840 psi | 58% | 2375 fps | 95.4% |
| Bofors RP7 | <<locked>> | 80% | 40,857 psi | 63% | 2310 fps | 97.2% |
| Hodgdon H380 | <<locked>> | 80% | 46,717 psi | 72% | 2431 fps | 99.8% |
| Hodgdon H414 | 43.1 gr | 80% | 38,696 psi | 60% | 2343 fps | 97.3% |
| Hodgdon H4350 | <<locked>> | 80% | 41,785 psi | 64% | 2362 fps | 96.7% |
| Hodgdon H4831 | <<locked>> | 94% | 47,050 psi | 72% | 2480 fps | 95.6% |
| Hodgdon H4831 SC | <<locked>> | 94% | 46,195 psi | 71% | 2464 fps | 95.4% |
| Hodgdon H4895 | <<locked>> | 80% | 54,288 psi | 84% | 2520 fps | 100% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 33,402 psi | 51% | 2211 fps | 99.4% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 51,024 psi | 79% | 2510 fps | 100% |
| Hodgdon Retumbo | <<locked>> | 96% | 37,289 psi | 57% | 2428 fps | 95.4% |
| Hodgdon Superformance | <<locked>> | 80% | 37,637 psi | 58% | 2356 fps | 96.5% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,354 psi | 42% | 1385 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 52,040 psi | 80% | 2477 fps | 100% |
| IMR 3031 | <<locked>> | 80% | 55,129 psi | 85% | 2497 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 48,138 psi | 74% | 2418 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 80% | 50,212 psi | 77% | 2441 fps | 99.2% |
| IMR 4350 | <<locked>> | 80% | 36,680 psi | 56% | 2251 fps | 96% |
| IMR 4451 Enduron | <<locked>> | 80% | 42,308 psi | 65% | 2336 fps | 97.9% |
| IMR 4831 | <<locked>> | 80% | 35,331 psi | 54% | 2257 fps | 98.7% |
| IMR 4895 | <<locked>> | 80% | 50,531 psi | 78% | 2493 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 92% | 46,296 psi | 71% | 2431 fps | 95.6% |
| IMR 7828 SSC | <<locked>> | 96% | 44,730 psi | 69% | 2500 fps | 95.8% |
| Lovex D073.6 | <<locked>> | 80% | 54,056 psi | 83% | 2490 fps | 100% |
| Lovex S060 | <<locked>> | 80% | 52,823 psi | 81% | 2448 fps | 100% |
| Lovex S062 | <<locked>> | 80% | 48,414 psi | 75% | 2411 fps | 100% |
| Lovex S065 | <<locked>> | 80% | 39,914 psi | 61% | 2297 fps | 98.6% |
| Lovex S070 | <<locked>> | 80% | 38,218 psi | 59% | 2280 fps | 97.2% |
| Lovex S071 | <<locked>> | 88% | 30,052 psi | 46% | 2149 fps | 95.3% |
| Norma 201 | <<locked>> | 80% | 52,591 psi | 81% | 2461 fps | 100% |
| Norma 202 | <<locked>> | 80% | 53,127 psi | 82% | 2457 fps | 100% |
| Norma 203B | <<locked>> | 80% | 48,617 psi | 75% | 2457 fps | 100% |
| Norma 204 | <<locked>> | 82% | 38,508 psi | 59% | 2326 fps | 95.2% |
| Norma MRP | <<locked>> | 86% | 34,490 psi | 53% | 2333 fps | 95.7% |
| Norma URP | <<locked>> | 80% | 36,753 psi | 57% | 2300 fps | 98.9% |
| Ramshot Big Game | <<locked>> | 80% | 48,950 psi | 75% | 2484 fps | 100% |
| Ramshot Grand | <<locked>> | 94% | 41,626 psi | 64% | 2454 fps | 95.1% |
| Ramshot Hunter | <<locked>> | 80% | 35,505 psi | 55% | 2287 fps | 97.2% |
| Ramshot Magnum | <<locked>> | 94% | 36,854 psi | 57% | 2346 fps | 95.6% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,688 psi | 43% | 1414 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 46,775 psi | 72% | 2418 fps | 99.2% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 53,316 psi | 82% | 2575 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 43,221 psi | 67% | 2464 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 36,405 psi | 56% | 2316 fps | 98.7% |
| ReloadSwiss RS 70 | 44.8 gr | 80% | 35,563 psi | 55% | 2329 fps | 98.2% |
| ReloadSwiss RS 76 | <<locked>> | 94% | 34,156 psi | 53% | 2352 fps | 95.2% |
| Rottweil R 902 | <<locked>> | 80% | 50,125 psi | 77% | 2421 fps | 100% |
| Rottweil R 903 | <<locked>> | 80% | 43,859 psi | 68% | 2375 fps | 100% |
| Rottweil R 904 | <<locked>> | 88% | 42,351 psi | 65% | 2369 fps | 95.2% |
| Rottweil R 905 | <<locked>> | 86% | 36,738 psi | 57% | 2313 fps | 95.1% |
| Rottweil R 907 | <<locked>> | 80% | 40,857 psi | 63% | 2310 fps | 97.2% |
| Shooters World Long Rifle | <<locked>> | 80% | 39,914 psi | 61% | 2297 fps | 98.6% |
| Shooters World Match Rifle | <<locked>> | 80% | 54,056 psi | 83% | 2490 fps | 100% |
| Shooters World Precision | <<locked>> | 80% | 48,414 psi | 75% | 2411 fps | 100% |
| Shooters World SW4350 | <<locked>> | 80% | 38,218 psi | 59% | 2280 fps | 97.2% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 44,802 psi | 69% | 2425 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 54,781 psi | 84% | 2523 fps | 100% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 52,199 psi | 80% | 2490 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 53,301 psi | 82% | 2395 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 45,049 psi | 69% | 2283 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 38,986 psi | 60% | 2244 fps | 97.3% |
| SNPE Vectan Tubal 8000 | <<locked>> | 88% | 39,030 psi | 60% | 2362 fps | 95.8% |
| Somchem S335 | <<locked>> | 80% | 53,142 psi | 82% | 2398 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 54,346 psi | 84% | 2507 fps | 100% |
| Somchem S355 | <<locked>> | 80% | 44,077 psi | 68% | 2372 fps | 100% |
| Somchem S361 | <<locked>> | 90% | 45,861 psi | 71% | 2408 fps | 95.2% |
| Somchem S365 | <<locked>> | 80% | 33,156 psi | 51% | 2260 fps | 100% |
| Somchem S385 | <<locked>> | 84% | 35,128 psi | 54% | 2254 fps | 95.4% |
| Vihtavuori N133 | <<locked>> | 80% | 53,867 psi | 83% | 2379 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 50,314 psi | 77% | 2382 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 50,662 psi | 78% | 2402 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 42,192 psi | 65% | 2313 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 38,014 psi | 59% | 2293 fps | 99.1% |
| Vihtavuori N165 | <<locked>> | 90% | 36,869 psi | 57% | 2283 fps | 95.6% |
| Vihtavuori N540 | <<locked>> | 80% | 48,646 psi | 75% | 2395 fps | 100% |
| Vihtavuori N550 | <<locked>> | 80% | 37,391 psi | 58% | 2297 fps | 98.8% |
| Vihtavuori N555 | <<locked>> | 80% | 28,935 psi | 45% | 2165 fps | 97.4% |
| Vihtavuori N560 | <<locked>> | 94% | 45,774 psi | 70% | 2536 fps | 95.7% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 37,057 psi | 57% | 2267 fps | 99.9% |
| Winchester 760 | <<locked>> | 80% | 38,957 psi | 60% | 2346 fps | 97.3% |
| Winchester StaBALL HD | <<locked>> | 80% | 23,250 psi | 36% | 2077 fps | 96.2% |
| Winchester StaBALL Match | <<locked>> | 80% | 52,156 psi | 80% | 2497 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 90% | 39,160 psi | 60% | 2333 fps | 95.6% |
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 107 powders for 7-6.5 PRCW loaded with the .284 | 183gr | Sierra MatchKing. Alliant Reloder-26 delivers the highest muzzle velocity at 2,749 fps; across all powders the maximum-charge window runs from 1,549 fps to 2,749 fps. Accurate 3100 gives the best case fill at 100 %, and 107 of the 107 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 183.0 gr projectile in 0.284" calls for a 1:8.5 twist; slower twists will usually not stabilise this weight. Accurate 3100, Accurate High Country, Accurate MAGPRO 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 H414 rank at the top here: for 7-6.5 PRCW with the .284 | 183gr | Sierra MatchKing 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.