Load Specifications
Load data in caliber 7 mm PRC with .284 | 160gr | Speer Deep Curl Soft Point bullet and 75 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Winchester StaBALL HD, Vihtavuori N560 and Norma MRP.
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>> | 94% | 56,579 psi | 87% | 2874 fps | 100% |
| Accurate 4350 | <<locked>> | 86% | 57,725 psi | 89% | 2904 fps | 100% |
| Accurate High Country | <<locked>> | 92% | 58,030 psi | 89% | 3028 fps | 99.2% |
| Accurate MAGPRO | <<locked>> | 92% | 54,984 psi | 85% | 2966 fps | 97.9% |
| ADI AR 2208 | <<locked>> | 82% | 58,407 psi | 90% | 2858 fps | 100% |
| ADI AR 2209 | <<locked>> | 92% | 58,392 psi | 90% | 2963 fps | 99.7% |
| ADI AR 2213 | <<locked>> | 94% | 56,231 psi | 87% | 2969 fps | 98.9% |
| ADI AR 2217ᴾ | <<locked>> | 100% | 50,386 psi | 78% | 2867 fps | 98.3% |
| ADI AR 2225ᴾ | <<locked>> | 100% | 45,020 psi | 69% | 2828 fps | 99.6% |
| Alliant Reloder-16 | <<locked>> | 88% | 58,595 psi | 90% | 2956 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 82% | 55,869 psi | 86% | 2917 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 92% | 57,928 psi | 89% | 2949 fps | 99.7% |
| Alliant Reloder-22 | <<locked>> | 94% | 56,333 psi | 87% | 2966 fps | 99.6% |
| Alliant Reloder-23 | <<locked>> | 96% | 57,595 psi | 89% | 2933 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 56,869 psi | 87% | 2995 fps | 100% |
| Alliant Reloder-26 | <<locked>> | 92% | 58,262 psi | 90% | 3025 fps | 100% |
| Baschieri & Pellagri 109 | <<locked>> | 96% | 57,740 psi | 89% | 2927 fps | 96.7% |
| Bofors RP15 | <<locked>> | 96% | 55,506 psi | 85% | 2949 fps | 99.5% |
| Bofors RP30ᴾ | <<locked>> | 100% | 52,808 psi | 81% | 2936 fps | 98.9% |
| Bofors RP5 | <<locked>> | 94% | 56,333 psi | 87% | 2966 fps | 99.6% |
| Bofors RP7 | <<locked>> | 84% | 56,144 psi | 86% | 2848 fps | 99.8% |
| Hodgdon H1000ᴾ | <<locked>> | 100% | 55,825 psi | 86% | 2959 fps | 99.5% |
| Hodgdon H414 | <<locked>> | 84% | 55,695 psi | 86% | 2904 fps | 100% |
| Hodgdon H4350 | <<locked>> | 84% | 58,102 psi | 89% | 2917 fps | 99.8% |
| Hodgdon H4831 | <<locked>> | 92% | 56,202 psi | 86% | 2907 fps | 98.4% |
| Hodgdon H4831 SC | <<locked>> | 94% | 58,813 psi | 90% | 2946 fps | 98.7% |
| Hodgdon Hybrid 100V | <<locked>> | 88% | 55,230 psi | 85% | 2831 fps | 100% |
| Hodgdon Retumboᴾ | <<locked>> | 100% | 55,738 psi | 86% | 3068 fps | 100% |
| Hodgdon Superformance | <<locked>> | 84% | 55,999 psi | 86% | 2940 fps | 99.9% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 37,231 psi | 57% | 1808 fps | 100% |
| IMR 4350 | <<locked>> | 88% | 57,783 psi | 89% | 2887 fps | 99.9% |
| IMR 4451 Enduron | <<locked>> | 84% | 57,522 psi | 88% | 2871 fps | 100% |
| IMR 4831 | <<locked>> | 88% | 58,102 psi | 89% | 2897 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 92% | 56,942 psi | 88% | 2887 fps | 98.6% |
| IMR 7828 SSC | <<locked>> | 96% | 57,928 psi | 89% | 3005 fps | 99.2% |
| Lovex S065 | <<locked>> | 86% | 58,436 psi | 90% | 2871 fps | 100% |
| Lovex S070 | <<locked>> | 86% | 56,449 psi | 87% | 2867 fps | 100% |
| Lovex S071ᴾ | <<locked>> | 100% | 57,624 psi | 89% | 2890 fps | 100% |
| Norma 204 | <<locked>> | 86% | 55,361 psi | 85% | 2894 fps | 99.3% |
| Norma 217ᴾ | <<locked>> | 100% | 40,727 psi | 63% | 2753 fps | 98.2% |
| Norma MRP | <<locked>> | 92% | 56,202 psi | 86% | 2986 fps | 100% |
| Norma URP | <<locked>> | 86% | 55,912 psi | 86% | 2884 fps | 100% |
| Ramshot Grand | <<locked>> | 94% | 54,708 psi | 84% | 2966 fps | 99% |
| Ramshot Hunter | <<locked>> | 88% | 58,653 psi | 90% | 2949 fps | 100% |
| Ramshot Magnum | <<locked>> | 98% | 57,217 psi | 88% | 2959 fps | 99.9% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 38,116 psi | 59% | 1854 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 86% | 57,725 psi | 89% | 2927 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 86% | 56,057 psi | 86% | 2956 fps | 100% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 56,782 psi | 87% | 3071 fps | 100% |
| ReloadSwiss RS 80ᴾ | <<locked>> | 100% | 51,445 psi | 79% | 2949 fps | 97.5% |
| Rottweil R 903 | <<locked>> | 82% | 57,798 psi | 89% | 2851 fps | 100% |
| Rottweil R 904 | <<locked>> | 90% | 55,854 psi | 86% | 2874 fps | 98.8% |
| Rottweil R 905 | <<locked>> | 92% | 57,537 psi | 89% | 2940 fps | 99.7% |
| Rottweil R 907 | <<locked>> | 84% | 56,144 psi | 86% | 2848 fps | 99.8% |
| Shooters World Long Rifle | <<locked>> | 86% | 58,436 psi | 90% | 2871 fps | 100% |
| Shooters World SW4350 | <<locked>> | 86% | 56,449 psi | 87% | 2867 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 82% | 57,334 psi | 88% | 2720 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 86% | 57,696 psi | 89% | 2828 fps | 100% |
| SNPE Vectan Tubal 8000 | <<locked>> | 92% | 57,101 psi | 88% | 2940 fps | 99.7% |
| Somchem S355 | <<locked>> | 82% | 57,232 psi | 88% | 2841 fps | 100% |
| Somchem S361 | <<locked>> | 90% | 57,435 psi | 88% | 2871 fps | 98.5% |
| Somchem S365 | <<locked>> | 88% | 56,536 psi | 87% | 2887 fps | 100% |
| Somchem S385 | <<locked>> | 92% | 57,914 psi | 89% | 2913 fps | 99.9% |
| Vihtavuori N150 | <<locked>> | 84% | 58,494 psi | 90% | 2812 fps | 100% |
| Vihtavuori N160 | <<locked>> | 86% | 57,740 psi | 89% | 2877 fps | 100% |
| Vihtavuori N165 | <<locked>> | 96% | 57,508 psi | 88% | 2894 fps | 99.8% |
| Vihtavuori N550 | <<locked>> | 86% | 57,014 psi | 88% | 2884 fps | 100% |
| Vihtavuori N555 | <<locked>> | 92% | 56,260 psi | 87% | 2910 fps | 100% |
| Vihtavuori N560 | <<locked>> | 92% | 55,956 psi | 86% | 2982 fps | 98.6% |
| Vihtavuori N565 | <<locked>> | 98% | 55,869 psi | 86% | 2959 fps | 98.7% |
| Vihtavuori N568ᴾ | <<locked>> | 100% | 52,620 psi | 81% | 2956 fps | 97.1% |
| Winchester 6.5 StaBALL | <<locked>> | 86% | 57,334 psi | 88% | 2835 fps | 100% |
| Winchester 760 | <<locked>> | 84% | 55,695 psi | 86% | 2904 fps | 100% |
| Winchester StaBALL HD | <<locked>> | 96% | 55,680 psi | 86% | 3018 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 94% | 57,943 psi | 89% | 2910 fps | 99.6% |
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% | 35,360 psi | 54% | 2490 fps | 97.7% |
| Accurate 4350 | <<locked>> | 80% | 47,253 psi | 73% | 2743 fps | 100% |
| Accurate High Country | <<locked>> | 82% | 40,988 psi | 63% | 2710 fps | 95.7% |
| Accurate MAGPRO | <<locked>> | 86% | 44,599 psi | 69% | 2776 fps | 95.4% |
| ADI AR 2208 | <<locked>> | 80% | 54,752 psi | 84% | 2805 fps | 100% |
| ADI AR 2209 | <<locked>> | 80% | 39,189 psi | 60% | 2612 fps | 96.2% |
| ADI AR 2213 | <<locked>> | 84% | 40,030 psi | 62% | 2657 fps | 95% |
| ADI AR 2217 | <<locked>> | 94% | 41,278 psi | 64% | 2684 fps | 95.8% |
| ADI AR 2225 | <<locked>> | 90% | 32,590 psi | 50% | 2520 fps | 95.6% |
| Alliant Reloder-16 | <<locked>> | 80% | 45,034 psi | 69% | 2743 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 80% | 52,170 psi | 80% | 2861 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 80% | 39,407 psi | 61% | 2612 fps | 96.3% |
| Alliant Reloder-22 | <<locked>> | 82% | 37,695 psi | 58% | 2608 fps | 95.9% |
| Alliant Reloder-23 | <<locked>> | 80% | 33,910 psi | 52% | 2516 fps | 99.7% |
| Alliant Reloder-25 | <<locked>> | 80% | 29,399 psi | 45% | 2418 fps | 95.9% |
| Alliant Reloder-26 | <<locked>> | 80% | 37,101 psi | 57% | 2651 fps | 99.2% |
| Baschieri & Pellagri 109 | <<locked>> | 92% | 51,169 psi | 79% | 2815 fps | 95.2% |
| Bofors RP15 | <<locked>> | 84% | 37,405 psi | 58% | 2602 fps | 95.6% |
| Bofors RP30 | <<locked>> | 92% | 40,292 psi | 62% | 2697 fps | 95.9% |
| Bofors RP5 | <<locked>> | 82% | 37,695 psi | 58% | 2608 fps | 95.9% |
| Bofors RP7 | <<locked>> | 80% | 49,676 psi | 76% | 2743 fps | 99.3% |
| Hodgdon H1000 | <<locked>> | 90% | 39,566 psi | 61% | 2648 fps | 95.9% |
| Hodgdon H414 | <<locked>> | 80% | 48,776 psi | 75% | 2789 fps | 99.5% |
| Hodgdon H4350 | <<locked>> | 80% | 51,242 psi | 79% | 2805 fps | 99.1% |
| Hodgdon H4831 | <<locked>> | 84% | 42,743 psi | 66% | 2664 fps | 95.3% |
| Hodgdon H4831 SC | <<locked>> | 84% | 41,989 psi | 65% | 2651 fps | 95.1% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 42,482 psi | 65% | 2625 fps | 100% |
| Hodgdon Retumbo | <<locked>> | 86% | 35,085 psi | 54% | 2621 fps | 95.3% |
| Hodgdon Superformance | <<locked>> | 80% | 48,428 psi | 75% | 2815 fps | 99.3% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,934 psi | 43% | 1617 fps | 100% |
| IMR 4350 | <<locked>> | 80% | 44,947 psi | 69% | 2674 fps | 98.6% |
| IMR 4451 Enduron | <<locked>> | 80% | 51,039 psi | 79% | 2769 fps | 99.6% |
| IMR 4831 | <<locked>> | 80% | 44,860 psi | 69% | 2687 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 82% | 41,713 psi | 64% | 2608 fps | 95.2% |
| IMR 7828 SSC | <<locked>> | 86% | 41,292 psi | 64% | 2700 fps | 95.6% |
| Lovex S065 | <<locked>> | 80% | 48,559 psi | 75% | 2717 fps | 99.9% |
| Lovex S070 | <<locked>> | 80% | 46,847 psi | 72% | 2707 fps | 99.4% |
| Lovex S071 | <<locked>> | 80% | 30,429 psi | 47% | 2365 fps | 95.8% |
| Norma 204 | <<locked>> | 80% | 45,194 psi | 70% | 2713 fps | 97.7% |
| Norma 217 | <<locked>> | 94% | 33,344 psi | 51% | 2569 fps | 95.4% |
| Norma MRP | 60.9 gr | 80% | 36,811 psi | 57% | 2618 fps | 97% |
| Norma URP | <<locked>> | 80% | 46,108 psi | 71% | 2723 fps | 100% |
| Ramshot Grand | <<locked>> | 86% | 41,046 psi | 63% | 2707 fps | 96% |
| Ramshot Hunter | <<locked>> | 80% | 45,063 psi | 69% | 2723 fps | 99.5% |
| Ramshot Magnum | <<locked>> | 84% | 34,185 psi | 53% | 2523 fps | 95.4% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 28,427 psi | 44% | 1654 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 47,007 psi | 72% | 2759 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 45,339 psi | 70% | 2779 fps | 100% |
| ReloadSwiss RS 76 | <<locked>> | 86% | 34,156 psi | 53% | 2598 fps | 96.3% |
| ReloadSwiss RS 80 | <<locked>> | 96% | 44,367 psi | 68% | 2815 fps | 95.5% |
| Rottweil R 903 | <<locked>> | 80% | 54,056 psi | 83% | 2795 fps | 100% |
| Rottweil R 904 | <<locked>> | 80% | 40,553 psi | 62% | 2592 fps | 95.5% |
| Rottweil R 905 | <<locked>> | 80% | 38,624 psi | 59% | 2592 fps | 96.3% |
| Rottweil R 907 | <<locked>> | 80% | 49,676 psi | 76% | 2743 fps | 99.3% |
| Shooters World Long Rifle | <<locked>> | 80% | 48,559 psi | 75% | 2717 fps | 99.9% |
| Shooters World SW4350 | <<locked>> | 80% | 46,847 psi | 72% | 2707 fps | 99.4% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 53,911 psi | 83% | 2674 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 47,529 psi | 73% | 2667 fps | 99.4% |
| SNPE Vectan Tubal 8000 | <<locked>> | 80% | 38,290 psi | 59% | 2589 fps | 96.1% |
| Somchem S355 | <<locked>> | 80% | 53,853 psi | 83% | 2792 fps | 100% |
| Somchem S361 | <<locked>> | 82% | 44,106 psi | 68% | 2638 fps | 95.7% |
| Somchem S365 | <<locked>> | 80% | 43,163 psi | 66% | 2680 fps | 100% |
| Somchem S385 | <<locked>> | 80% | 39,262 psi | 60% | 2579 fps | 97.3% |
| Vihtavuori N150 | <<locked>> | 80% | 51,488 psi | 79% | 2713 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 47,688 psi | 73% | 2723 fps | 100% |
| Vihtavuori N165 | <<locked>> | 80% | 34,069 psi | 52% | 2454 fps | 95.1% |
| Vihtavuori N550 | <<locked>> | 80% | 46,891 psi | 72% | 2723 fps | 100% |
| Vihtavuori N555 | <<locked>> | 80% | 37,985 psi | 58% | 2589 fps | 99.7% |
| Vihtavuori N560 | 63.9 gr | 84% | 42,424 psi | 65% | 2730 fps | 95.4% |
| Vihtavuori N565 | <<locked>> | 90% | 42,583 psi | 66% | 2720 fps | 95.8% |
| Vihtavuori N568 | <<locked>> | 96% | 45,542 psi | 70% | 2825 fps | 95.2% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 46,673 psi | 72% | 2680 fps | 100% |
| Winchester 760 | <<locked>> | 80% | 48,776 psi | 75% | 2789 fps | 99.5% |
| Winchester StaBALL HD | 60.3 gr | 80% | 30,182 psi | 46% | 2533 fps | 99.9% |
| Winchester Supreme 780 | <<locked>> | 80% | 35,824 psi | 55% | 2500 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 80 powders for 7 mm PRC loaded with the .284 | 160gr | Speer Deep Curl Soft Point. ReloadSwiss RS 76 delivers the highest muzzle velocity at 3,071 fps; across all powders the maximum-charge window runs from 1,808 fps to 3,071 fps. ADI AR 2217 gives the best case fill at 100 %, and 80 of the 80 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 160.0 gr projectile in 0.284" calls for a 1:12.5 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. Winchester StaBALL HD, Vihtavuori N560, Norma MRP rank at the top here: for 7 mm PRC with the .284 | 160gr | Speer Deep Curl Soft Point they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, Alliant Reloder-33, IMR 7977 Enduron, Vihtavuori N170 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.