Load Specifications
Load data in caliber 7 mm PRC with .284 | 170gr | SUS-TAC HPT bullet and 81 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Vihtavuori N560, Norma MRP and Accurate MAGPRO.
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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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>> | 96% | 56,304 psi | 87% | 2776 fps | 100% |
| Accurate 4350 | <<locked>> | 88% | 58,160 psi | 89% | 2808 fps | 100% |
| Accurate MAGPRO | <<locked>> | 96% | 58,798 psi | 90% | 2927 fps | 98.5% |
| ADI AR 2208 | <<locked>> | 82% | 55,840 psi | 86% | 2717 fps | 100% |
| ADI AR 2209 | <<locked>> | 94% | 58,798 psi | 90% | 2864 fps | 99.7% |
| ADI AR 2213 | <<locked>> | 96% | 56,275 psi | 87% | 2867 fps | 98.9% |
| ADI AR 2217ᴾ | <<locked>> | 100% | 47,239 psi | 73% | 2710 fps | 97.6% |
| ADI AR 2225ᴾ | <<locked>> | 100% | 41,829 psi | 64% | 2671 fps | 99.1% |
| Alliant Reloder- TS 15.5 | <<locked>> | 82% | 57,145 psi | 88% | 2740 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 88% | 55,274 psi | 85% | 2808 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 84% | 56,449 psi | 87% | 2825 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 94% | 58,073 psi | 89% | 2851 fps | 99.7% |
| Alliant Reloder-22 | <<locked>> | 96% | 56,115 psi | 86% | 2864 fps | 99.6% |
| Alliant Reloder-23 | <<locked>> | 98% | 57,392 psi | 88% | 2835 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 52,765 psi | 81% | 2838 fps | 100% |
| Alliant Reloder-26 | <<locked>> | 94% | 58,001 psi | 89% | 2927 fps | 100% |
| Baschieri & Pellagri 109 | <<locked>> | 98% | 58,349 psi | 90% | 2831 fps | 96.8% |
| Bofors RP15 | <<locked>> | 98% | 55,274 psi | 85% | 2851 fps | 99.5% |
| Bofors RP3 | <<locked>> | 82% | 58,073 psi | 89% | 2753 fps | 100% |
| Bofors RP30ᴾ | <<locked>> | 100% | 48,907 psi | 75% | 2779 fps | 98.3% |
| Bofors RP5 | <<locked>> | 96% | 56,115 psi | 86% | 2864 fps | 99.6% |
| Bofors RP7 | <<locked>> | 86% | 56,898 psi | 88% | 2756 fps | 99.9% |
| Hodgdon H1000ᴾ | <<locked>> | 100% | 51,895 psi | 80% | 2795 fps | 99% |
| Hodgdon H380 | <<locked>> | 82% | 58,131 psi | 89% | 2776 fps | 100% |
| Hodgdon H414 | <<locked>> | 86% | 55,956 psi | 86% | 2805 fps | 100% |
| Hodgdon H4350 | <<locked>> | 84% | 55,390 psi | 85% | 2769 fps | 99.6% |
| Hodgdon H4831 | <<locked>> | 94% | 56,391 psi | 87% | 2808 fps | 98.4% |
| Hodgdon H4831 SC | <<locked>> | 94% | 55,288 psi | 85% | 2792 fps | 98.2% |
| Hodgdon Hybrid 100V | <<locked>> | 90% | 55,550 psi | 85% | 2733 fps | 100% |
| Hodgdon Retumboᴾ | <<locked>> | 100% | 51,677 psi | 80% | 2904 fps | 99.8% |
| Hodgdon Superformance | <<locked>> | 86% | 56,376 psi | 87% | 2844 fps | 99.9% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 37,101 psi | 57% | 1716 fps | 100% |
| IMR 4064 | <<locked>> | 82% | 58,813 psi | 90% | 2746 fps | 100% |
| IMR 4350 | <<locked>> | 90% | 58,508 psi | 90% | 2795 fps | 99.9% |
| IMR 4451 Enduron | <<locked>> | 86% | 58,465 psi | 90% | 2779 fps | 100% |
| IMR 4831 | <<locked>> | 90% | 58,262 psi | 90% | 2795 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 94% | 57,537 psi | 89% | 2792 fps | 98.7% |
| IMR 7828 SSC | <<locked>> | 98% | 57,769 psi | 89% | 2900 fps | 99.2% |
| Lovex S065 | <<locked>> | 86% | 55,434 psi | 85% | 2723 fps | 100% |
| Lovex S070 | <<locked>> | 88% | 57,232 psi | 88% | 2776 fps | 100% |
| Lovex S071ᴾ | <<locked>> | 100% | 53,766 psi | 83% | 2736 fps | 100% |
| Norma 204 | <<locked>> | 88% | 55,869 psi | 86% | 2799 fps | 99.4% |
| Norma 217ᴾ | <<locked>> | 100% | 37,507 psi | 58% | 2598 fps | 97.4% |
| Norma MRP | <<locked>> | 94% | 55,970 psi | 86% | 2884 fps | 100% |
| Norma URP | <<locked>> | 88% | 56,550 psi | 87% | 2792 fps | 100% |
| Ramshot Grand | <<locked>> | 98% | 58,798 psi | 90% | 2927 fps | 99.5% |
| Ramshot Hunter | <<locked>> | 90% | 58,813 psi | 90% | 2848 fps | 100% |
| Ramshot Magnumᴾ | <<locked>> | 100% | 56,884 psi | 88% | 2861 fps | 99.9% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 37,855 psi | 58% | 1755 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 82% | 57,740 psi | 89% | 2766 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 82% | 55,898 psi | 86% | 2812 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 88% | 58,160 psi | 89% | 2835 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 88% | 56,405 psi | 87% | 2864 fps | 100% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 52,214 psi | 80% | 2900 fps | 100% |
| ReloadSwiss RS 80ᴾ | <<locked>> | 100% | 47,181 psi | 73% | 2785 fps | 96.5% |
| Rottweil R 903 | <<locked>> | 84% | 58,479 psi | 90% | 2756 fps | 100% |
| Rottweil R 904 | <<locked>> | 92% | 56,492 psi | 87% | 2782 fps | 98.9% |
| Rottweil R 905 | <<locked>> | 94% | 57,783 psi | 89% | 2844 fps | 99.7% |
| Rottweil R 907 | <<locked>> | 86% | 56,898 psi | 88% | 2756 fps | 99.9% |
| Shooters World Long Rifle | <<locked>> | 86% | 55,434 psi | 85% | 2723 fps | 100% |
| Shooters World SW4350 | <<locked>> | 88% | 57,232 psi | 88% | 2776 fps | 100% |
| SNPE Vectan SP 11 | <<locked>> | 82% | 56,173 psi | 86% | 2762 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 84% | 58,088 psi | 89% | 2621 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 88% | 58,392 psi | 90% | 2733 fps | 100% |
| SNPE Vectan Tubal 8000 | <<locked>> | 94% | 57,334 psi | 88% | 2838 fps | 99.7% |
| Somchem S355 | <<locked>> | 84% | 58,088 psi | 89% | 2749 fps | 100% |
| Somchem S361 | <<locked>> | 92% | 58,117 psi | 89% | 2776 fps | 98.6% |
| Somchem S365 | <<locked>> | 90% | 56,739 psi | 87% | 2792 fps | 100% |
| Somchem S385 | <<locked>> | 94% | 58,204 psi | 90% | 2815 fps | 99.9% |
| Vihtavuori N150 | <<locked>> | 84% | 55,767 psi | 86% | 2674 fps | 100% |
| Vihtavuori N160 | <<locked>> | 88% | 58,392 psi | 90% | 2782 fps | 100% |
| Vihtavuori N165 | <<locked>> | 98% | 57,725 psi | 89% | 2795 fps | 99.8% |
| Vihtavuori N550 | <<locked>> | 88% | 57,319 psi | 88% | 2789 fps | 100% |
| Vihtavuori N555 | <<locked>> | 94% | 55,985 psi | 86% | 2808 fps | 100% |
| Vihtavuori N560 | <<locked>> | 94% | 55,898 psi | 86% | 2881 fps | 98.6% |
| Vihtavuori N565ᴾ | <<locked>> | 100% | 55,564 psi | 85% | 2861 fps | 98.7% |
| Vihtavuori N568ᴾ | <<locked>> | 100% | 48,428 psi | 75% | 2792 fps | 96.2% |
| Winchester 6.5 StaBALL | <<locked>> | 88% | 57,841 psi | 89% | 2743 fps | 100% |
| Winchester 760 | <<locked>> | 86% | 56,202 psi | 86% | 2812 fps | 100% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 58,711 psi | 90% | 2969 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 96% | 58,291 psi | 90% | 2812 fps | 99.7% |
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% | 32,953 psi | 51% | 2352 fps | 97.1% |
| Accurate 4350 | <<locked>> | 80% | 44,309 psi | 68% | 2595 fps | 100% |
| Accurate MAGPRO | 61.5 gr | 88% | 44,411 psi | 68% | 2684 fps | 95.5% |
| ADI AR 2208 | <<locked>> | 80% | 52,460 psi | 81% | 2667 fps | 100% |
| ADI AR 2209 | <<locked>> | 80% | 36,999 psi | 57% | 2474 fps | 95.6% |
| ADI AR 2213 | <<locked>> | 86% | 40,364 psi | 62% | 2575 fps | 95.3% |
| ADI AR 2217 | <<locked>> | 96% | 41,423 psi | 64% | 2595 fps | 95.9% |
| ADI AR 2225 | <<locked>> | 92% | 32,401 psi | 50% | 2438 fps | 95.7% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 53,679 psi | 83% | 2690 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 80% | 42,438 psi | 65% | 2602 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 80% | 48,979 psi | 75% | 2717 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 80% | 37,014 psi | 57% | 2470 fps | 95.7% |
| Alliant Reloder-22 | <<locked>> | 82% | 35,143 psi | 54% | 2467 fps | 95.1% |
| Alliant Reloder-23 | <<locked>> | 80% | 31,705 psi | 49% | 2382 fps | 99.5% |
| Alliant Reloder-25 | <<locked>> | 80% | 27,630 psi | 43% | 2287 fps | 95.2% |
| Alliant Reloder-26 | <<locked>> | 80% | 34,418 psi | 53% | 2513 fps | 98.9% |
| Baschieri & Pellagri 109 | <<locked>> | 94% | 51,561 psi | 79% | 2720 fps | 95.2% |
| Bofors RP15 | <<locked>> | 86% | 37,434 psi | 58% | 2520 fps | 95.9% |
| Bofors RP3 | <<locked>> | 80% | 54,476 psi | 84% | 2707 fps | 100% |
| Bofors RP30 | <<locked>> | 92% | 37,260 psi | 57% | 2549 fps | 95.1% |
| Bofors RP5 | <<locked>> | 82% | 35,143 psi | 54% | 2467 fps | 95.1% |
| Bofors RP7 | <<locked>> | 80% | 47,152 psi | 73% | 2598 fps | 99% |
| Hodgdon H1000 | <<locked>> | 90% | 37,130 psi | 57% | 2503 fps | 95% |
| Hodgdon H380 | <<locked>> | 80% | 54,563 psi | 84% | 2726 fps | 100% |
| Hodgdon H414 | <<locked>> | 80% | 46,021 psi | 71% | 2644 fps | 99.2% |
| Hodgdon H4350 | <<locked>> | 80% | 48,660 psi | 75% | 2657 fps | 98.8% |
| Hodgdon H4831 | <<locked>> | 86% | 43,192 psi | 66% | 2585 fps | 95.6% |
| Hodgdon H4831 SC | <<locked>> | 86% | 42,322 psi | 65% | 2566 fps | 95.3% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 40,147 psi | 62% | 2493 fps | 100% |
| Hodgdon Retumbo | <<locked>> | 88% | 34,940 psi | 54% | 2536 fps | 95.5% |
| Hodgdon Superformance | <<locked>> | 80% | 45,179 psi | 70% | 2664 fps | 99% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,659 psi | 43% | 1529 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 55,230 psi | 85% | 2697 fps | 100% |
| IMR 4350 | <<locked>> | 80% | 42,670 psi | 66% | 2533 fps | 98.3% |
| IMR 4451 Enduron | <<locked>> | 80% | 48,660 psi | 75% | 2625 fps | 99.4% |
| IMR 4831 | <<locked>> | 80% | 42,308 psi | 65% | 2549 fps | 99.9% |
| IMR 4955 Enduron | <<locked>> | 84% | 42,235 psi | 65% | 2530 fps | 95.5% |
| IMR 7828 SSC | <<locked>> | 88% | 41,336 psi | 64% | 2608 fps | 95.8% |
| Lovex S065 | <<locked>> | 80% | 46,267 psi | 71% | 2579 fps | 99.8% |
| Lovex S070 | <<locked>> | 80% | 44,425 psi | 68% | 2566 fps | 99.1% |
| Lovex S071 | <<locked>> | 80% | 28,529 psi | 44% | 2241 fps | 95.2% |
| Norma 204 | <<locked>> | 80% | 42,540 psi | 65% | 2569 fps | 97.2% |
| Norma 217 | <<locked>> | 96% | 32,909 psi | 51% | 2484 fps | 95.4% |
| Norma MRP | 54.9 gr | 80% | 34,272 psi | 53% | 2474 fps | 96.4% |
| Norma URP | <<locked>> | 80% | 43,497 psi | 67% | 2582 fps | 99.9% |
| Ramshot Grand | <<locked>> | 86% | 38,247 psi | 59% | 2556 fps | 95.1% |
| Ramshot Hunter | <<locked>> | 80% | 42,322 psi | 65% | 2579 fps | 99.2% |
| Ramshot Magnum | <<locked>> | 86% | 34,098 psi | 52% | 2441 fps | 95.6% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 28,398 psi | 44% | 1568 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 54,056 psi | 83% | 2710 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 51,982 psi | 80% | 2756 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 44,106 psi | 68% | 2615 fps | 99.9% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 42,511 psi | 65% | 2635 fps | 99.8% |
| ReloadSwiss RS 76 | <<locked>> | 86% | 31,850 psi | 49% | 2451 fps | 95.2% |
| ReloadSwiss RS 80 | <<locked>> | 98% | 43,656 psi | 67% | 2717 fps | 95.5% |
| Rottweil R 903 | <<locked>> | 80% | 51,227 psi | 79% | 2654 fps | 100% |
| Rottweil R 904 | <<locked>> | 82% | 41,060 psi | 63% | 2513 fps | 95.8% |
| Rottweil R 905 | <<locked>> | 80% | 36,303 psi | 56% | 2454 fps | 95.7% |
| Rottweil R 907 | <<locked>> | 80% | 47,152 psi | 73% | 2598 fps | 99% |
| Shooters World Long Rifle | <<locked>> | 80% | 46,267 psi | 71% | 2579 fps | 99.8% |
| Shooters World SW4350 | <<locked>> | 80% | 44,425 psi | 68% | 2566 fps | 99.1% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 52,518 psi | 81% | 2710 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 51,663 psi | 79% | 2539 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 45,121 psi | 69% | 2526 fps | 99.1% |
| SNPE Vectan Tubal 8000 | <<locked>> | 80% | 35,984 psi | 55% | 2451 fps | 95.5% |
| Somchem S355 | <<locked>> | 80% | 51,256 psi | 79% | 2651 fps | 100% |
| Somchem S361 | <<locked>> | 82% | 41,800 psi | 64% | 2503 fps | 95.1% |
| Somchem S365 | <<locked>> | 80% | 40,408 psi | 62% | 2543 fps | 100% |
| Somchem S385 | <<locked>> | 80% | 36,941 psi | 57% | 2444 fps | 96.8% |
| Vihtavuori N150 | <<locked>> | 80% | 48,878 psi | 75% | 2579 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 44,962 psi | 69% | 2579 fps | 100% |
| Vihtavuori N165 | <<locked>> | 82% | 34,055 psi | 52% | 2372 fps | 95.3% |
| Vihtavuori N550 | <<locked>> | 80% | 44,440 psi | 68% | 2585 fps | 99.9% |
| Vihtavuori N555 | <<locked>> | 80% | 35,549 psi | 55% | 2454 fps | 99.4% |
| Vihtavuori N560 | 59 gr | 86% | 42,438 psi | 65% | 2641 fps | 95.6% |
| Vihtavuori N565 | <<locked>> | 90% | 39,537 psi | 61% | 2572 fps | 95% |
| Vihtavuori N568 | <<locked>> | 98% | 45,121 psi | 69% | 2730 fps | 95.3% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 43,918 psi | 68% | 2543 fps | 100% |
| Winchester 760 | <<locked>> | 80% | 46,253 psi | 71% | 2648 fps | 99.3% |
| Winchester StaBALL HD | <<locked>> | 80% | 28,050 psi | 43% | 2392 fps | 99.6% |
| Winchester Supreme 780 | <<locked>> | 82% | 36,071 psi | 55% | 2425 fps | 95.4% |
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 81 powders for 7 mm PRC loaded with the .284 | 170gr | SUS-TAC HPT. Winchester StaBALL HD delivers the highest muzzle velocity at 2,969 fps; across all powders the maximum-charge window runs from 1,716 fps to 2,969 fps. ADI AR 2217 gives the best case fill at 100 %, and 81 of the 81 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 170.0 gr projectile in 0.284" calls for a 1:7.5 twist; slower twists will usually not stabilise this weight. ADI AR 2217, ADI AR 2225, Alliant Reloder-25 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. Vihtavuori N560, Norma MRP, Accurate MAGPRO rank at the top here: for 7 mm PRC with the .284 | 170gr | SUS-TAC HPT 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.