Load Specifications
Load data in caliber 7 mm PRC with .284 | 180gr | Sierra MatchKing bullet and 76 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Accurate MAGPRO, Accurate High Country and Hodgdon Retumbo.
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 3100 | <<locked>> | 94% | 58,218 psi | 90% | 2736 fps | 100% |
| Accurate 4350 | <<locked>> | 84% | 55,608 psi | 86% | 2707 fps | 100% |
| Accurate High Country | <<locked>> | 90% | 56,173 psi | 86% | 2835 fps | 99.6% |
| Accurate MAGPRO | <<locked>> | 92% | 56,797 psi | 87% | 2835 fps | 98.9% |
| ADI AR 2209 | <<locked>> | 90% | 56,333 psi | 87% | 2769 fps | 99.9% |
| ADI AR 2213 | <<locked>> | 94% | 57,957 psi | 89% | 2831 fps | 99.6% |
| ADI AR 2217ᴾ | <<locked>> | 100% | 52,127 psi | 80% | 2743 fps | 99.3% |
| ADI AR 2225ᴾ | <<locked>> | 100% | 46,586 psi | 72% | 2707 fps | 100% |
| Alliant Power Pro Varmint | <<locked>> | 90% | 56,695 psi | 87% | 2766 fps | 99.9% |
| Alliant Reloder-16 | <<locked>> | 86% | 56,768 psi | 87% | 2759 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 82% | 57,696 psi | 89% | 2766 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 90% | 56,028 psi | 86% | 2759 fps | 99.9% |
| Alliant Reloder-22 | <<locked>> | 94% | 58,102 psi | 89% | 2828 fps | 100% |
| Alliant Reloder-23 | <<locked>> | 94% | 55,796 psi | 86% | 2740 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 98% | 55,129 psi | 85% | 2802 fps | 100% |
| Alliant Reloder-26 | <<locked>> | 90% | 56,202 psi | 86% | 2828 fps | 100% |
| Baschieri & Pellagri 109 | <<locked>> | 94% | 55,579 psi | 86% | 2740 fps | 97.3% |
| Bofors RP15 | <<locked>> | 96% | 57,246 psi | 88% | 2815 fps | 99.9% |
| Bofors RP30ᴾ | <<locked>> | 100% | 54,708 psi | 84% | 2808 fps | 99.6% |
| Bofors RP5 | <<locked>> | 94% | 58,102 psi | 89% | 2828 fps | 100% |
| Bofors RP7 | <<locked>> | 84% | 57,696 psi | 89% | 2707 fps | 100% |
| Hodgdon H1000ᴾ | <<locked>> | 100% | 57,464 psi | 88% | 2825 fps | 99.9% |
| Hodgdon H414 | <<locked>> | 84% | 57,377 psi | 88% | 2762 fps | 100% |
| Hodgdon H4350 | <<locked>> | 82% | 56,144 psi | 86% | 2720 fps | 99.9% |
| Hodgdon H4831 | <<locked>> | 92% | 57,682 psi | 89% | 2772 fps | 99.2% |
| Hodgdon H4831 SC | <<locked>> | 92% | 56,579 psi | 87% | 2753 fps | 99.1% |
| Hodgdon Hybrid 100V | <<locked>> | 88% | 56,826 psi | 87% | 2684 fps | 100% |
| Hodgdon Retumboᴾ | <<locked>> | 100% | 57,783 psi | 89% | 2936 fps | 100% |
| Hodgdon Superformance | <<locked>> | 84% | 57,812 psi | 89% | 2802 fps | 100% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 37,260 psi | 57% | 1686 fps | 100% |
| IMR 4350 | <<locked>> | 86% | 55,854 psi | 86% | 2697 fps | 100% |
| IMR 4451 Enduron | <<locked>> | 82% | 55,521 psi | 85% | 2677 fps | 100% |
| IMR 4831 | <<locked>> | 86% | 55,927 psi | 86% | 2700 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 92% | 58,537 psi | 90% | 2753 fps | 99.4% |
| IMR 7828 SSC | <<locked>> | 94% | 55,970 psi | 86% | 2815 fps | 99.5% |
| IMR 8133 Enduronᴾ | <<locked>> | 100% | 42,090 psi | 65% | 2618 fps | 97.5% |
| Lovex S065 | <<locked>> | 84% | 56,318 psi | 87% | 2674 fps | 100% |
| Lovex S070 | <<locked>> | 86% | 58,146 psi | 89% | 2723 fps | 100% |
| Lovex S071 | <<locked>> | 98% | 55,767 psi | 86% | 2703 fps | 100% |
| Norma 204 | <<locked>> | 86% | 56,768 psi | 87% | 2753 fps | 99.8% |
| Norma 217ᴾ | <<locked>> | 100% | 42,438 psi | 65% | 2644 fps | 99.3% |
| Norma MRP | <<locked>> | 92% | 58,204 psi | 90% | 2848 fps | 100% |
| Norma URP | <<locked>> | 86% | 57,769 psi | 89% | 2740 fps | 100% |
| Ramshot Grand | <<locked>> | 94% | 56,956 psi | 88% | 2838 fps | 99.7% |
| Ramshot Hunter | <<locked>> | 86% | 56,376 psi | 87% | 2749 fps | 100% |
| Ramshot Magnum | <<locked>> | 96% | 54,926 psi | 85% | 2769 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 38,261 psi | 59% | 1729 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 84% | 55,680 psi | 86% | 2733 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 86% | 58,059 psi | 89% | 2812 fps | 100% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 58,552 psi | 90% | 2933 fps | 100% |
| ReloadSwiss RS 80ᴾ | <<locked>> | 100% | 53,374 psi | 82% | 2828 fps | 98.7% |
| Rottweil R 904 | <<locked>> | 90% | 57,479 psi | 88% | 2740 fps | 99.5% |
| Rottweil R 905 | <<locked>> | 90% | 55,550 psi | 85% | 2749 fps | 99.9% |
| Rottweil R 907 | <<locked>> | 84% | 57,696 psi | 89% | 2707 fps | 100% |
| Shooters World Long Rifle | <<locked>> | 84% | 56,318 psi | 87% | 2674 fps | 100% |
| Shooters World SW4350 | <<locked>> | 86% | 58,146 psi | 89% | 2723 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 82% | 58,566 psi | 90% | 2566 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 84% | 55,477 psi | 85% | 2635 fps | 100% |
| SNPE Vectan Tubal 8000 | <<locked>> | 90% | 55,129 psi | 85% | 2746 fps | 99.8% |
| Somchem S361 | <<locked>> | 88% | 55,201 psi | 85% | 2680 fps | 98.9% |
| Somchem S365 | <<locked>> | 88% | 58,581 psi | 90% | 2743 fps | 100% |
| Somchem S385 | <<locked>> | 90% | 55,898 psi | 86% | 2720 fps | 100% |
| Vihtavuori N150 | <<locked>> | 82% | 56,478 psi | 87% | 2618 fps | 100% |
| Vihtavuori N160 | <<locked>> | 84% | 55,651 psi | 86% | 2680 fps | 100% |
| Vihtavuori N165 | <<locked>> | 94% | 55,506 psi | 85% | 2703 fps | 99.9% |
| Vihtavuori N170ᴾ | <<locked>> | 100% | 57,870 psi | 89% | 2769 fps | 95.9% |
| Vihtavuori N550 | <<locked>> | 86% | 58,552 psi | 90% | 2736 fps | 100% |
| Vihtavuori N555 | <<locked>> | 92% | 58,044 psi | 89% | 2766 fps | 100% |
| Vihtavuori N560 | <<locked>> | 92% | 57,841 psi | 89% | 2848 fps | 99.4% |
| Vihtavuori N565 | <<locked>> | 98% | 57,827 psi | 89% | 2831 fps | 99.5% |
| Vihtavuori N568ᴾ | <<locked>> | 100% | 54,578 psi | 84% | 2835 fps | 98.4% |
| Vihtavuori N570ᴾ | <<locked>> | 100% | 51,459 psi | 79% | 2822 fps | 96% |
| Winchester 6.5 StaBALL | <<locked>> | 84% | 54,984 psi | 85% | 2641 fps | 100% |
| Winchester 760 | <<locked>> | 84% | 57,377 psi | 88% | 2762 fps | 100% |
| Winchester StaBALL HD | <<locked>> | 96% | 57,899 psi | 89% | 2874 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 92% | 55,854 psi | 86% | 2720 fps | 99.8% |
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 3100 | <<locked>> | 80% | 36,550 psi | 56% | 2379 fps | 98.8% |
| Accurate 4350 | <<locked>> | 80% | 48,718 psi | 75% | 2605 fps | 100% |
| Accurate High Country | 57.3 gr | 80% | 39,668 psi | 61% | 2536 fps | 96.5% |
| Accurate MAGPRO | 59.8 gr | 82% | 40,059 psi | 62% | 2536 fps | 95.1% |
| ADI AR 2209 | <<locked>> | 80% | 40,524 psi | 62% | 2493 fps | 97.7% |
| ADI AR 2213 | <<locked>> | 82% | 38,711 psi | 60% | 2490 fps | 95.9% |
| ADI AR 2217 | <<locked>> | 90% | 37,405 psi | 58% | 2461 fps | 95.7% |
| ADI AR 2225 | <<locked>> | 86% | 29,617 psi | 46% | 2310 fps | 95.5% |
| Alliant Power Pro Varmint | <<locked>> | 80% | 40,930 psi | 63% | 2497 fps | 97.8% |
| Alliant Reloder-16 | <<locked>> | 80% | 46,688 psi | 72% | 2612 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 80% | 53,954 psi | 83% | 2717 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 80% | 40,553 psi | 62% | 2490 fps | 97.7% |
| Alliant Reloder-22 | <<locked>> | 80% | 36,434 psi | 56% | 2441 fps | 96.6% |
| Alliant Reloder-23 | <<locked>> | 80% | 35,157 psi | 54% | 2402 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 80% | 30,487 psi | 47% | 2326 fps | 97.8% |
| Alliant Reloder-26 | <<locked>> | 80% | 38,667 psi | 59% | 2539 fps | 99.9% |
| Baschieri & Pellagri 109 | <<locked>> | 88% | 46,311 psi | 71% | 2579 fps | 95% |
| Bofors RP15 | <<locked>> | 80% | 33,939 psi | 52% | 2379 fps | 95.5% |
| Bofors RP30 | <<locked>> | 88% | 36,564 psi | 56% | 2477 fps | 95.9% |
| Bofors RP5 | <<locked>> | 80% | 36,434 psi | 56% | 2441 fps | 96.6% |
| Bofors RP7 | <<locked>> | 80% | 50,937 psi | 78% | 2605 fps | 99.8% |
| Hodgdon H1000 | <<locked>> | 86% | 35,694 psi | 55% | 2421 fps | 95.7% |
| Hodgdon H414 | <<locked>> | 80% | 50,125 psi | 77% | 2654 fps | 99.9% |
| Hodgdon H4350 | <<locked>> | 80% | 52,634 psi | 81% | 2667 fps | 99.7% |
| Hodgdon H4831 | <<locked>> | 80% | 38,682 psi | 60% | 2438 fps | 95.2% |
| Hodgdon H4831 SC | <<locked>> | 82% | 40,596 psi | 62% | 2477 fps | 95.8% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 43,990 psi | 68% | 2497 fps | 100% |
| Hodgdon Retumbo | 56.6 gr | 82% | 31,821 psi | 49% | 2402 fps | 95.2% |
| Hodgdon Superformance | <<locked>> | 80% | 50,053 psi | 77% | 2687 fps | 99.9% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,992 psi | 43% | 1506 fps | 100% |
| IMR 4350 | <<locked>> | 80% | 46,311 psi | 71% | 2546 fps | 99.4% |
| IMR 4451 Enduron | <<locked>> | 80% | 52,112 psi | 80% | 2625 fps | 100% |
| IMR 4831 | <<locked>> | 80% | 46,137 psi | 71% | 2552 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 80% | 40,219 psi | 62% | 2438 fps | 95.9% |
| IMR 7828 SSC | <<locked>> | 82% | 37,289 psi | 57% | 2467 fps | 95.5% |
| IMR 8133 Enduron | <<locked>> | 96% | 37,072 psi | 57% | 2507 fps | 95.8% |
| Lovex S065 | <<locked>> | 80% | 49,835 psi | 77% | 2579 fps | 100% |
| Lovex S070 | <<locked>> | 80% | 48,196 psi | 74% | 2575 fps | 99.9% |
| Lovex S071 | <<locked>> | 80% | 31,531 psi | 49% | 2264 fps | 97.4% |
| Norma 204 | <<locked>> | 80% | 46,528 psi | 72% | 2585 fps | 98.8% |
| Norma 217 | <<locked>> | 90% | 30,385 psi | 47% | 2359 fps | 95.3% |
| Norma MRP | <<locked>> | 80% | 38,218 psi | 59% | 2507 fps | 98.4% |
| Norma URP | <<locked>> | 80% | 47,587 psi | 73% | 2592 fps | 100% |
| Ramshot Grand | <<locked>> | 82% | 36,854 psi | 57% | 2474 fps | 95.7% |
| Ramshot Hunter | <<locked>> | 80% | 46,412 psi | 71% | 2595 fps | 99.9% |
| Ramshot Magnum | <<locked>> | 80% | 30,589 psi | 47% | 2300 fps | 95.1% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 28,732 psi | 44% | 1545 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 48,602 psi | 75% | 2628 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 46,818 psi | 72% | 2648 fps | 100% |
| ReloadSwiss RS 76 | <<locked>> | 82% | 30,835 psi | 47% | 2375 fps | 96% |
| ReloadSwiss RS 80 | <<locked>> | 92% | 39,682 psi | 61% | 2579 fps | 95.2% |
| Rottweil R 904 | <<locked>> | 80% | 41,771 psi | 64% | 2474 fps | 97% |
| Rottweil R 905 | <<locked>> | 80% | 40,016 psi | 62% | 2480 fps | 97.7% |
| Rottweil R 907 | <<locked>> | 80% | 50,937 psi | 78% | 2605 fps | 99.8% |
| Shooters World Long Rifle | <<locked>> | 80% | 49,835 psi | 77% | 2579 fps | 100% |
| Shooters World SW4350 | <<locked>> | 80% | 48,196 psi | 74% | 2575 fps | 99.9% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 55,129 psi | 85% | 2523 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 48,660 psi | 75% | 2533 fps | 99.8% |
| SNPE Vectan Tubal 8000 | <<locked>> | 80% | 39,682 psi | 61% | 2477 fps | 97.6% |
| Somchem S361 | <<locked>> | 80% | 42,511 psi | 65% | 2467 fps | 96.4% |
| Somchem S365 | <<locked>> | 80% | 44,802 psi | 69% | 2549 fps | 100% |
| Somchem S385 | <<locked>> | 80% | 40,495 psi | 62% | 2461 fps | 98.5% |
| Vihtavuori N150 | <<locked>> | 80% | 52,924 psi | 81% | 2572 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 48,994 psi | 75% | 2585 fps | 100% |
| Vihtavuori N165 | <<locked>> | 80% | 35,172 psi | 54% | 2343 fps | 96.7% |
| Vihtavuori N170 | <<locked>> | 98% | 54,172 psi | 83% | 2713 fps | 95.1% |
| Vihtavuori N550 | <<locked>> | 80% | 48,341 psi | 74% | 2589 fps | 100% |
| Vihtavuori N555 | <<locked>> | 80% | 39,392 psi | 61% | 2470 fps | 100% |
| Vihtavuori N560 | <<locked>> | 80% | 38,290 psi | 59% | 2493 fps | 95.2% |
| Vihtavuori N565 | <<locked>> | 86% | 38,551 psi | 59% | 2490 fps | 95.7% |
| Vihtavuori N568 | <<locked>> | 92% | 41,060 psi | 63% | 2592 fps | 95% |
| Vihtavuori N570 | <<locked>> | 98% | 48,051 psi | 74% | 2762 fps | 95.1% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 48,095 psi | 74% | 2546 fps | 100% |
| Winchester 760 | <<locked>> | 80% | 50,357 psi | 77% | 2657 fps | 99.9% |
| Winchester StaBALL HD | <<locked>> | 80% | 31,430 psi | 48% | 2431 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 80% | 37,101 psi | 57% | 2392 fps | 96.7% |
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 76 powders for 7 mm PRC loaded with the .284 | 180gr | Sierra MatchKing. Hodgdon Retumbo delivers the highest muzzle velocity at 2,936 fps; across all powders the maximum-charge window runs from 1,686 fps to 2,936 fps. ADI AR 2217 gives the best case fill at 100 %, and 76 of the 76 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (448 MPa), the top charges use 57–90 %, leaving at least 10 % headroom. The 180.0 gr projectile in 0.284" calls for a 1:10.0 twist; slower twists will usually not stabilise this weight. ADI AR 2217, ADI AR 2225, Bofors RP30 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. Accurate MAGPRO, Accurate High Country, Hodgdon Retumbo rank at the top here: for 7 mm PRC with the .284 | 180gr | 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.