Load Specifications
Load data in caliber 7 mm PRC with .284 | 180gr | Sierra Tipped GameKing bullet and 74 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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Max Load - Barrel Length: 24"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 3100 | <<locked>> | 92% | 55,071 psi | 85% | 2694 fps | 100% |
| Accurate 4350 | <<locked>> | 84% | 56,391 psi | 87% | 2720 fps | 100% |
| Accurate High Country | <<locked>> | 90% | 56,550 psi | 87% | 2841 fps | 99.6% |
| Accurate MAGPRO | <<locked>> | 92% | 57,450 psi | 88% | 2848 fps | 99% |
| ADI AR 2209 | <<locked>> | 90% | 57,014 psi | 88% | 2779 fps | 99.9% |
| ADI AR 2213 | <<locked>> | 94% | 58,639 psi | 90% | 2844 fps | 99.7% |
| ADI AR 2217ᴾ | <<locked>> | 100% | 52,678 psi | 81% | 2756 fps | 99.4% |
| ADI AR 2225ᴾ | <<locked>> | 100% | 47,108 psi | 72% | 2720 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 86% | 57,246 psi | 88% | 2769 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 82% | 58,160 psi | 89% | 2776 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 90% | 56,420 psi | 87% | 2766 fps | 99.9% |
| Alliant Reloder-22 | <<locked>> | 94% | 58,726 psi | 90% | 2838 fps | 100% |
| Alliant Reloder-23 | <<locked>> | 94% | 56,449 psi | 87% | 2749 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 98% | 55,811 psi | 86% | 2815 fps | 100% |
| Alliant Reloder-26 | <<locked>> | 90% | 56,884 psi | 88% | 2838 fps | 100% |
| Baschieri & Pellagri 109 | <<locked>> | 94% | 56,014 psi | 86% | 2753 fps | 97.4% |
| Bofors RP15 | <<locked>> | 96% | 57,609 psi | 89% | 2822 fps | 99.9% |
| Bofors RP30ᴾ | <<locked>> | 100% | 55,317 psi | 85% | 2822 fps | 99.7% |
| Bofors RP5 | <<locked>> | 94% | 58,726 psi | 90% | 2838 fps | 100% |
| Bofors RP7 | <<locked>> | 84% | 58,131 psi | 89% | 2717 fps | 100% |
| Hodgdon H1000ᴾ | <<locked>> | 100% | 58,073 psi | 89% | 2835 fps | 100% |
| Hodgdon H414 | <<locked>> | 84% | 57,812 psi | 89% | 2769 fps | 100% |
| Hodgdon H4350 | <<locked>> | 82% | 56,565 psi | 87% | 2730 fps | 99.9% |
| Hodgdon H4831 | <<locked>> | 92% | 58,291 psi | 90% | 2782 fps | 99.3% |
| Hodgdon H4831 SC | <<locked>> | 92% | 57,188 psi | 88% | 2766 fps | 99.2% |
| Hodgdon Hybrid 100V | <<locked>> | 88% | 57,334 psi | 88% | 2690 fps | 100% |
| Hodgdon Retumboᴾ | <<locked>> | 100% | 58,436 psi | 90% | 2946 fps | 100% |
| Hodgdon Superformance | <<locked>> | 84% | 58,479 psi | 90% | 2812 fps | 100% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 37,289 psi | 57% | 1690 fps | 100% |
| IMR 4350 | <<locked>> | 86% | 56,275 psi | 87% | 2707 fps | 100% |
| IMR 4451 Enduron | <<locked>> | 82% | 55,956 psi | 86% | 2687 fps | 100% |
| IMR 4831 | <<locked>> | 86% | 56,652 psi | 87% | 2710 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 90% | 55,535 psi | 85% | 2710 fps | 99.1% |
| IMR 7828 SSC | <<locked>> | 94% | 56,652 psi | 87% | 2828 fps | 99.6% |
| IMR 8133 Enduronᴾ | <<locked>> | 100% | 42,656 psi | 66% | 2628 fps | 97.7% |
| Lovex S065 | <<locked>> | 84% | 56,753 psi | 87% | 2684 fps | 100% |
| Lovex S070 | <<locked>> | 86% | 58,552 psi | 90% | 2733 fps | 100% |
| Lovex S071 | <<locked>> | 98% | 56,391 psi | 87% | 2713 fps | 100% |
| Norma 204 | <<locked>> | 86% | 57,421 psi | 88% | 2762 fps | 99.9% |
| Norma 217ᴾ | <<locked>> | 100% | 43,018 psi | 66% | 2657 fps | 99.4% |
| Norma MRP | <<locked>> | 90% | 54,795 psi | 84% | 2802 fps | 100% |
| Norma URP | <<locked>> | 86% | 58,204 psi | 90% | 2749 fps | 100% |
| Ramshot Grand | <<locked>> | 94% | 57,334 psi | 88% | 2844 fps | 99.8% |
| Ramshot Hunter | <<locked>> | 86% | 57,029 psi | 88% | 2759 fps | 100% |
| Ramshot Magnum | <<locked>> | 96% | 55,579 psi | 86% | 2779 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 38,276 psi | 59% | 1732 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 84% | 56,144 psi | 86% | 2740 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 86% | 58,494 psi | 90% | 2822 fps | 100% |
| ReloadSwiss RS 76 | <<locked>> | 98% | 55,172 psi | 85% | 2884 fps | 100% |
| ReloadSwiss RS 80ᴾ | <<locked>> | 100% | 54,244 psi | 83% | 2844 fps | 98.8% |
| Rottweil R 904 | <<locked>> | 90% | 57,870 psi | 89% | 2746 fps | 99.6% |
| Rottweil R 905 | <<locked>> | 90% | 55,941 psi | 86% | 2756 fps | 99.9% |
| Rottweil R 907 | <<locked>> | 84% | 58,131 psi | 89% | 2717 fps | 100% |
| Shooters World Long Rifle | <<locked>> | 84% | 56,753 psi | 87% | 2684 fps | 100% |
| Shooters World SW4350 | <<locked>> | 86% | 58,552 psi | 90% | 2733 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 84% | 55,883 psi | 86% | 2641 fps | 100% |
| SNPE Vectan Tubal 8000 | <<locked>> | 90% | 55,521 psi | 85% | 2753 fps | 99.9% |
| Somchem S361 | <<locked>> | 88% | 55,724 psi | 86% | 2690 fps | 99% |
| Somchem S365 | <<locked>> | 86% | 55,259 psi | 85% | 2703 fps | 100% |
| Somchem S385 | <<locked>> | 90% | 56,521 psi | 87% | 2733 fps | 100% |
| Vihtavuori N150 | <<locked>> | 82% | 56,898 psi | 88% | 2628 fps | 100% |
| Vihtavuori N160 | <<locked>> | 84% | 56,376 psi | 87% | 2690 fps | 100% |
| Vihtavuori N165 | <<locked>> | 94% | 56,130 psi | 86% | 2717 fps | 100% |
| Vihtavuori N170ᴾ | <<locked>> | 100% | 58,392 psi | 90% | 2779 fps | 96.1% |
| Vihtavuori N550 | <<locked>> | 84% | 55,376 psi | 85% | 2697 fps | 100% |
| Vihtavuori N555 | <<locked>> | 92% | 58,465 psi | 90% | 2772 fps | 100% |
| Vihtavuori N560 | <<locked>> | 92% | 58,523 psi | 90% | 2861 fps | 99.5% |
| Vihtavuori N565 | <<locked>> | 98% | 58,436 psi | 90% | 2841 fps | 99.6% |
| Vihtavuori N568ᴾ | <<locked>> | 100% | 55,143 psi | 85% | 2844 fps | 98.5% |
| Vihtavuori N570ᴾ | <<locked>> | 100% | 52,054 psi | 80% | 2835 fps | 96.2% |
| Winchester 6.5 StaBALL | <<locked>> | 84% | 55,593 psi | 86% | 2651 fps | 100% |
| Winchester 760 | <<locked>> | 84% | 57,812 psi | 89% | 2769 fps | 100% |
| Winchester StaBALL HD | <<locked>> | 96% | 58,769 psi | 90% | 2884 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 92% | 56,202 psi | 86% | 2726 fps | 99.9% |
Start Load - Barrel Length: 24"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 3100 | <<locked>> | 80% | 36,985 psi | 57% | 2388 fps | 98.9% |
| Accurate 4350 | <<locked>> | 80% | 49,211 psi | 76% | 2615 fps | 100% |
| Accurate High Country | <<locked>> | 80% | 40,074 psi | 62% | 2546 fps | 96.7% |
| Accurate MAGPRO | <<locked>> | 82% | 40,451 psi | 62% | 2546 fps | 95.3% |
| ADI AR 2209 | <<locked>> | 80% | 40,901 psi | 63% | 2507 fps | 97.8% |
| ADI AR 2213 | <<locked>> | 80% | 36,521 psi | 56% | 2441 fps | 95.1% |
| ADI AR 2217 | <<locked>> | 90% | 37,681 psi | 58% | 2470 fps | 95.9% |
| ADI AR 2225 | <<locked>> | 86% | 29,994 psi | 46% | 2326 fps | 95.8% |
| Alliant Reloder-16 | <<locked>> | 80% | 46,992 psi | 72% | 2615 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 80% | 54,447 psi | 84% | 2726 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 80% | 40,973 psi | 63% | 2503 fps | 97.9% |
| Alliant Reloder-22 | <<locked>> | 80% | 36,811 psi | 57% | 2451 fps | 96.8% |
| Alliant Reloder-23 | <<locked>> | 80% | 35,563 psi | 55% | 2411 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 80% | 30,806 psi | 47% | 2336 fps | 98% |
| Alliant Reloder-26 | <<locked>> | 80% | 39,088 psi | 60% | 2549 fps | 99.9% |
| Baschieri & Pellagri 109 | <<locked>> | 88% | 46,543 psi | 72% | 2585 fps | 95.1% |
| Bofors RP15 | <<locked>> | 80% | 34,316 psi | 53% | 2392 fps | 95.7% |
| Bofors RP30 | <<locked>> | 86% | 34,490 psi | 53% | 2428 fps | 95.1% |
| Bofors RP5 | <<locked>> | 80% | 36,811 psi | 57% | 2451 fps | 96.8% |
| Bofors RP7 | <<locked>> | 80% | 51,401 psi | 79% | 2615 fps | 99.9% |
| Hodgdon H1000 | <<locked>> | 86% | 36,013 psi | 55% | 2431 fps | 95.9% |
| Hodgdon H414 | <<locked>> | 80% | 50,575 psi | 78% | 2664 fps | 100% |
| Hodgdon H4350 | <<locked>> | 80% | 53,084 psi | 82% | 2677 fps | 99.8% |
| Hodgdon H4831 | <<locked>> | 80% | 38,856 psi | 60% | 2444 fps | 95.3% |
| Hodgdon H4831 SC | <<locked>> | 80% | 38,290 psi | 59% | 2431 fps | 95.1% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 44,454 psi | 68% | 2507 fps | 100% |
| Hodgdon Retumbo | <<locked>> | 82% | 32,140 psi | 49% | 2411 fps | 95.5% |
| Hodgdon Superformance | <<locked>> | 80% | 50,473 psi | 78% | 2694 fps | 99.9% |
| Hodgdon TrailBoss | <<locked>> | 80% | 28,079 psi | 43% | 1512 fps | 100% |
| IMR 4350 | <<locked>> | 80% | 46,717 psi | 72% | 2556 fps | 99.5% |
| IMR 4451 Enduron | <<locked>> | 80% | 52,533 psi | 81% | 2635 fps | 100% |
| IMR 4831 | <<locked>> | 80% | 46,586 psi | 72% | 2562 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 80% | 40,596 psi | 62% | 2448 fps | 96.1% |
| IMR 7828 SSC | <<locked>> | 82% | 37,623 psi | 58% | 2477 fps | 95.6% |
| IMR 8133 Enduron | <<locked>> | 94% | 35,099 psi | 54% | 2464 fps | 95.1% |
| Lovex S065 | <<locked>> | 80% | 50,256 psi | 77% | 2589 fps | 100% |
| Lovex S070 | <<locked>> | 80% | 48,646 psi | 75% | 2585 fps | 99.9% |
| Lovex S071 | <<locked>> | 80% | 31,923 psi | 49% | 2274 fps | 97.6% |
| Norma 204 | <<locked>> | 80% | 46,920 psi | 72% | 2595 fps | 98.9% |
| Norma 217 | <<locked>> | 90% | 30,835 psi | 47% | 2375 fps | 95.7% |
| Norma MRP | <<locked>> | 80% | 38,638 psi | 59% | 2516 fps | 98.6% |
| Norma URP | <<locked>> | 80% | 48,022 psi | 74% | 2602 fps | 100% |
| Ramshot Grand | <<locked>> | 82% | 37,217 psi | 57% | 2484 fps | 95.9% |
| Ramshot Hunter | <<locked>> | 80% | 46,833 psi | 72% | 2605 fps | 100% |
| Ramshot Magnum | <<locked>> | 80% | 31,053 psi | 48% | 2313 fps | 95.4% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 28,645 psi | 44% | 1545 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 49,037 psi | 75% | 2635 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 47,282 psi | 73% | 2657 fps | 100% |
| ReloadSwiss RS 76 | <<locked>> | 80% | 29,008 psi | 45% | 2323 fps | 95% |
| ReloadSwiss RS 80 | <<locked>> | 92% | 40,176 psi | 62% | 2589 fps | 95.5% |
| Rottweil R 904 | <<locked>> | 80% | 42,163 psi | 65% | 2484 fps | 97.1% |
| Rottweil R 905 | <<locked>> | 80% | 40,437 psi | 62% | 2490 fps | 97.9% |
| Rottweil R 907 | <<locked>> | 80% | 51,401 psi | 79% | 2615 fps | 99.9% |
| Shooters World Long Rifle | <<locked>> | 80% | 50,256 psi | 77% | 2589 fps | 100% |
| Shooters World SW4350 | <<locked>> | 80% | 48,646 psi | 75% | 2585 fps | 99.9% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 49,124 psi | 76% | 2539 fps | 99.9% |
| SNPE Vectan Tubal 8000 | <<locked>> | 80% | 40,103 psi | 62% | 2487 fps | 97.8% |
| Somchem S361 | <<locked>> | 80% | 42,830 psi | 66% | 2474 fps | 96.5% |
| Somchem S365 | <<locked>> | 80% | 45,310 psi | 70% | 2559 fps | 100% |
| Somchem S385 | <<locked>> | 80% | 40,901 psi | 63% | 2474 fps | 98.6% |
| Vihtavuori N150 | <<locked>> | 80% | 53,359 psi | 82% | 2579 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 49,458 psi | 76% | 2592 fps | 100% |
| Vihtavuori N165 | <<locked>> | 80% | 35,520 psi | 55% | 2356 fps | 96.9% |
| Vihtavuori N170 | <<locked>> | 98% | 54,679 psi | 84% | 2723 fps | 95.3% |
| Vihtavuori N550 | <<locked>> | 80% | 48,762 psi | 75% | 2598 fps | 100% |
| Vihtavuori N555 | <<locked>> | 80% | 39,827 psi | 61% | 2480 fps | 100% |
| Vihtavuori N560 | <<locked>> | 80% | 38,696 psi | 60% | 2507 fps | 95.5% |
| Vihtavuori N565 | <<locked>> | 86% | 39,117 psi | 60% | 2507 fps | 95.9% |
| Vihtavuori N568 | <<locked>> | 92% | 41,597 psi | 64% | 2602 fps | 95.3% |
| Vihtavuori N570 | <<locked>> | 98% | 48,617 psi | 75% | 2772 fps | 95.3% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 48,472 psi | 75% | 2552 fps | 100% |
| Winchester 760 | <<locked>> | 80% | 50,807 psi | 78% | 2667 fps | 100% |
| Winchester StaBALL HD | <<locked>> | 80% | 31,937 psi | 49% | 2444 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 80% | 37,304 psi | 57% | 2402 fps | 96.9% |
ᴾ possible press load - work up slowly to this load while watching for signs of excessive pressure.
This overview compares 74 powders for 7 mm PRC loaded with the .284 | 180gr | Sierra Tipped GameKing. Hodgdon Retumbo delivers the highest muzzle velocity at 2,946 fps; across all powders the maximum-charge window runs from 1,690 fps to 2,946 fps. ADI AR 2217 gives the best case fill at 100 %, and 74 of the 74 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 1:9.5 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. Always begin at the start load and work up in small increments while checking case and primer for pressure signs.