Load Specifications
Load data in caliber 7 mm PRC with .284 | 160gr | Sierra SBT GameKing bullet and 80 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Winchester StaBALL HD, Accurate MAGPRO and Ramshot Grand.
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% | 57,522 psi | 88% | 2881 fps | 100% |
| Accurate 4350 | <<locked>> | 86% | 55,259 psi | 85% | 2864 fps | 100% |
| Accurate High Country | <<locked>> | 92% | 55,158 psi | 85% | 2976 fps | 98.8% |
| Accurate MAGPRO | <<locked>> | 94% | 56,188 psi | 86% | 2979 fps | 97.9% |
| ADI AR 2208 | <<locked>> | 82% | 56,318 psi | 87% | 2822 fps | 100% |
| ADI AR 2209 | <<locked>> | 92% | 56,086 psi | 86% | 2920 fps | 99.4% |
| ADI AR 2213 | <<locked>> | 96% | 57,624 psi | 89% | 2982 fps | 98.9% |
| ADI AR 2217ᴾ | <<locked>> | 100% | 48,182 psi | 74% | 2815 fps | 97.6% |
| ADI AR 2225ᴾ | <<locked>> | 100% | 42,801 psi | 66% | 2772 fps | 99.1% |
| Alliant Power Pro Varmint | <<locked>> | 92% | 56,144 psi | 86% | 2913 fps | 99.4% |
| Alliant Reloder- TS 15.5 | <<locked>> | 82% | 57,812 psi | 89% | 2844 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 88% | 56,086 psi | 86% | 2917 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 84% | 57,363 psi | 88% | 2933 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 92% | 55,448 psi | 85% | 2907 fps | 99.3% |
| Alliant Reloder-22 | <<locked>> | 96% | 57,493 psi | 88% | 2976 fps | 99.6% |
| Alliant Reloder-23 | <<locked>> | 98% | 58,421 psi | 90% | 2940 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 53,925 psi | 83% | 2946 fps | 100% |
| Alliant Reloder-26 | <<locked>> | 92% | 55,245 psi | 85% | 2982 fps | 100% |
| Baschieri & Pellagri 109 | <<locked>> | 96% | 55,767 psi | 86% | 2881 fps | 96% |
| Bofors RP15 | <<locked>> | 98% | 56,347 psi | 87% | 2956 fps | 99.5% |
| Bofors RP30ᴾ | <<locked>> | 100% | 49,980 psi | 77% | 2884 fps | 98.3% |
| Bofors RP5 | <<locked>> | 96% | 57,493 psi | 88% | 2976 fps | 99.6% |
| Bofors RP7 | <<locked>> | 86% | 57,740 psi | 89% | 2864 fps | 99.8% |
| Hodgdon H1000ᴾ | <<locked>> | 100% | 53,026 psi | 82% | 2904 fps | 99% |
| Hodgdon H414 | <<locked>> | 86% | 57,029 psi | 88% | 2917 fps | 100% |
| Hodgdon H4350 | <<locked>> | 84% | 56,173 psi | 86% | 2874 fps | 99.5% |
| Hodgdon H4831 | <<locked>> | 94% | 57,580 psi | 89% | 2920 fps | 98.4% |
| Hodgdon H4831 SC | <<locked>> | 94% | 56,231 psi | 87% | 2897 fps | 98.2% |
| Hodgdon Hybrid 100V | <<locked>> | 90% | 56,492 psi | 87% | 2841 fps | 100% |
| Hodgdon Retumboᴾ | <<locked>> | 100% | 52,924 psi | 81% | 3015 fps | 99.8% |
| Hodgdon Superformance | <<locked>> | 86% | 57,653 psi | 89% | 2959 fps | 99.9% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 37,057 psi | 57% | 1791 fps | 100% |
| IMR 4350 | <<locked>> | 88% | 55,782 psi | 86% | 2851 fps | 99.8% |
| IMR 4451 Enduron | <<locked>> | 84% | 55,680 psi | 86% | 2835 fps | 99.9% |
| IMR 4831 | <<locked>> | 88% | 55,564 psi | 85% | 2854 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 94% | 58,537 psi | 90% | 2900 fps | 98.6% |
| IMR 7828 SSC | <<locked>> | 96% | 55,187 psi | 85% | 2956 fps | 98.7% |
| Lovex S065 | <<locked>> | 86% | 56,304 psi | 87% | 2831 fps | 100% |
| Lovex S070 | <<locked>> | 88% | 58,073 psi | 89% | 2881 fps | 100% |
| Lovex S071ᴾ | <<locked>> | 100% | 54,853 psi | 84% | 2844 fps | 100% |
| Norma 204 | <<locked>> | 88% | 56,681 psi | 87% | 2904 fps | 99.3% |
| Norma 217ᴾ | <<locked>> | 100% | 38,493 psi | 59% | 2700 fps | 97.3% |
| Norma MRP | <<locked>> | 94% | 57,305 psi | 88% | 2999 fps | 100% |
| Norma URP | <<locked>> | 88% | 57,479 psi | 88% | 2900 fps | 100% |
| Ramshot Grand | <<locked>> | 96% | 56,043 psi | 86% | 2979 fps | 99.1% |
| Ramshot Hunter | <<locked>> | 88% | 56,086 psi | 86% | 2904 fps | 100% |
| Ramshot Magnumᴾ | <<locked>> | 100% | 58,392 psi | 90% | 2972 fps | 99.9% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 37,956 psi | 58% | 1834 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 82% | 58,508 psi | 90% | 2871 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 82% | 56,840 psi | 87% | 2917 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 86% | 55,274 psi | 85% | 2887 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 88% | 57,319 psi | 88% | 2969 fps | 100% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 53,679 psi | 83% | 3015 fps | 100% |
| ReloadSwiss RS 80ᴾ | <<locked>> | 100% | 48,530 psi | 75% | 2894 fps | 96.5% |
| Rottweil R 903 | <<locked>> | 82% | 55,550 psi | 85% | 2812 fps | 100% |
| Rottweil R 904 | <<locked>> | 92% | 57,246 psi | 88% | 2887 fps | 98.8% |
| Rottweil R 905 | <<locked>> | 94% | 58,697 psi | 90% | 2949 fps | 99.7% |
| Rottweil R 907 | <<locked>> | 86% | 57,740 psi | 89% | 2864 fps | 99.8% |
| Shooters World Long Rifle | <<locked>> | 86% | 56,304 psi | 87% | 2831 fps | 100% |
| Shooters World SW4350 | <<locked>> | 88% | 58,073 psi | 89% | 2881 fps | 100% |
| SNPE Vectan SP 11 | <<locked>> | 82% | 57,029 psi | 88% | 2871 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 82% | 55,448 psi | 85% | 2684 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 86% | 55,724 psi | 86% | 2789 fps | 99.9% |
| SNPE Vectan Tubal 8000 | <<locked>> | 94% | 58,233 psi | 90% | 2946 fps | 99.6% |
| Somchem S355 | <<locked>> | 84% | 58,639 psi | 90% | 2854 fps | 100% |
| Somchem S361 | <<locked>> | 90% | 55,143 psi | 85% | 2825 fps | 97.9% |
| Somchem S365 | <<locked>> | 90% | 57,812 psi | 89% | 2900 fps | 100% |
| Somchem S385 | <<locked>> | 92% | 55,492 psi | 85% | 2867 fps | 99.7% |
| Vihtavuori N150 | <<locked>> | 84% | 56,492 psi | 87% | 2779 fps | 100% |
| Vihtavuori N160 | <<locked>> | 86% | 55,492 psi | 85% | 2838 fps | 100% |
| Vihtavuori N165 | <<locked>> | 98% | 58,682 psi | 90% | 2900 fps | 99.8% |
| Vihtavuori N550 | <<locked>> | 88% | 58,479 psi | 90% | 2897 fps | 100% |
| Vihtavuori N555 | <<locked>> | 94% | 57,043 psi | 88% | 2917 fps | 100% |
| Vihtavuori N560 | <<locked>> | 94% | 57,159 psi | 88% | 2992 fps | 98.6% |
| Vihtavuori N565ᴾ | <<locked>> | 100% | 56,710 psi | 87% | 2966 fps | 98.7% |
| Vihtavuori N568ᴾ | <<locked>> | 100% | 49,763 psi | 77% | 2900 fps | 96.2% |
| Winchester 6.5 StaBALL | <<locked>> | 86% | 54,969 psi | 85% | 2799 fps | 100% |
| Winchester 760 | <<locked>> | 86% | 57,276 psi | 88% | 2920 fps | 100% |
| Winchester StaBALL HD | <<locked>> | 98% | 56,217 psi | 86% | 3028 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 94% | 55,376 psi | 85% | 2861 fps | 99.3% |
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% | 33,562 psi | 52% | 2444 fps | 96.9% |
| Accurate 4350 | <<locked>> | 80% | 45,078 psi | 69% | 2697 fps | 100% |
| Accurate High Country | <<locked>> | 84% | 41,843 psi | 64% | 2726 fps | 95.8% |
| Accurate MAGPRO | 65.5 gr | 88% | 45,397 psi | 70% | 2789 fps | 95.4% |
| ADI AR 2208 | <<locked>> | 80% | 53,098 psi | 82% | 2772 fps | 100% |
| ADI AR 2209 | <<locked>> | 80% | 37,608 psi | 58% | 2569 fps | 95.4% |
| ADI AR 2213 | <<locked>> | 86% | 41,089 psi | 63% | 2674 fps | 95.1% |
| ADI AR 2217 | <<locked>> | 96% | 42,134 psi | 65% | 2694 fps | 95.8% |
| ADI AR 2225 | <<locked>> | 92% | 33,170 psi | 51% | 2533 fps | 95.6% |
| Alliant Power Pro Varmint | <<locked>> | 80% | 37,971 psi | 58% | 2569 fps | 95.6% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 54,302 psi | 84% | 2795 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 80% | 43,265 psi | 67% | 2707 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 80% | 49,937 psi | 77% | 2822 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 80% | 37,623 psi | 58% | 2562 fps | 95.5% |
| Alliant Reloder-22 | <<locked>> | 84% | 38,406 psi | 59% | 2621 fps | 95.9% |
| Alliant Reloder-23 | <<locked>> | 80% | 32,242 psi | 50% | 2470 fps | 99.4% |
| Alliant Reloder-25 | <<locked>> | 82% | 30,023 psi | 46% | 2434 fps | 96% |
| Alliant Reloder-26 | <<locked>> | 80% | 35,070 psi | 54% | 2602 fps | 98.7% |
| Baschieri & Pellagri 109 | <<locked>> | 94% | 52,344 psi | 81% | 2822 fps | 95.1% |
| Bofors RP15 | <<locked>> | 86% | 38,101 psi | 59% | 2615 fps | 95.6% |
| Bofors RP30 | <<locked>> | 94% | 40,756 psi | 63% | 2707 fps | 95.9% |
| Bofors RP5 | <<locked>> | 84% | 38,406 psi | 59% | 2621 fps | 95.9% |
| Bofors RP7 | <<locked>> | 80% | 47,921 psi | 74% | 2703 fps | 98.9% |
| Hodgdon H1000 | <<locked>> | 92% | 40,495 psi | 62% | 2661 fps | 95.9% |
| Hodgdon H414 | <<locked>> | 80% | 46,789 psi | 72% | 2746 fps | 99.2% |
| Hodgdon H4350 | <<locked>> | 80% | 49,255 psi | 76% | 2759 fps | 98.7% |
| Hodgdon H4831 | <<locked>> | 86% | 43,932 psi | 68% | 2684 fps | 95.4% |
| Hodgdon H4831 SC | <<locked>> | 86% | 43,076 psi | 66% | 2667 fps | 95.1% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 40,770 psi | 63% | 2589 fps | 100% |
| Hodgdon Retumbo | <<locked>> | 88% | 35,694 psi | 55% | 2635 fps | 95.4% |
| Hodgdon Superformance | <<locked>> | 80% | 46,137 psi | 71% | 2769 fps | 98.9% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,789 psi | 43% | 1601 fps | 100% |
| IMR 4350 | <<locked>> | 80% | 43,337 psi | 67% | 2631 fps | 98.2% |
| IMR 4451 Enduron | <<locked>> | 80% | 49,356 psi | 76% | 2730 fps | 99.4% |
| IMR 4831 | <<locked>> | 80% | 43,047 psi | 66% | 2648 fps | 99.9% |
| IMR 4955 Enduron | <<locked>> | 84% | 42,757 psi | 66% | 2625 fps | 95.3% |
| IMR 7828 SSC | <<locked>> | 88% | 42,206 psi | 65% | 2713 fps | 95.7% |
| Lovex S065 | <<locked>> | 80% | 46,847 psi | 72% | 2677 fps | 99.7% |
| Lovex S070 | <<locked>> | 80% | 45,136 psi | 69% | 2667 fps | 99% |
| Lovex S071 | <<locked>> | 82% | 30,922 psi | 48% | 2375 fps | 95.8% |
| Norma 204 | <<locked>> | 80% | 43,192 psi | 66% | 2667 fps | 97% |
| Norma 217 | <<locked>> | 96% | 33,678 psi | 52% | 2575 fps | 95.3% |
| Norma MRP | <<locked>> | 80% | 35,012 psi | 54% | 2569 fps | 96.2% |
| Norma URP | <<locked>> | 80% | 44,237 psi | 68% | 2684 fps | 99.9% |
| Ramshot Grand | 63.8 gr | 88% | 41,989 psi | 65% | 2723 fps | 96% |
| Ramshot Hunter | <<locked>> | 80% | 43,004 psi | 66% | 2677 fps | 99.1% |
| Ramshot Magnum | <<locked>> | 86% | 34,896 psi | 54% | 2536 fps | 95.5% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 28,297 psi | 44% | 1637 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 54,955 psi | 85% | 2818 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 53,040 psi | 82% | 2864 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 44,976 psi | 69% | 2720 fps | 99.9% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 43,221 psi | 66% | 2733 fps | 99.8% |
| ReloadSwiss RS 76 | <<locked>> | 86% | 32,474 psi | 50% | 2539 fps | 95% |
| ReloadSwiss RS 80 | <<locked>> | 98% | 44,788 psi | 69% | 2822 fps | 95.4% |
| Rottweil R 903 | <<locked>> | 80% | 52,040 psi | 80% | 2759 fps | 100% |
| Rottweil R 904 | <<locked>> | 82% | 41,640 psi | 64% | 2608 fps | 95.6% |
| Rottweil R 905 | <<locked>> | 80% | 36,956 psi | 57% | 2549 fps | 95.4% |
| Rottweil R 907 | <<locked>> | 80% | 47,921 psi | 74% | 2703 fps | 98.9% |
| Shooters World Long Rifle | <<locked>> | 80% | 46,847 psi | 72% | 2677 fps | 99.7% |
| Shooters World SW4350 | <<locked>> | 80% | 45,136 psi | 69% | 2667 fps | 99% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 53,272 psi | 82% | 2815 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 52,228 psi | 80% | 2641 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 45,759 psi | 70% | 2625 fps | 99% |
| SNPE Vectan Tubal 8000 | <<locked>> | 80% | 36,622 psi | 56% | 2543 fps | 95.3% |
| Somchem S355 | <<locked>> | 80% | 51,880 psi | 80% | 2756 fps | 100% |
| Somchem S361 | <<locked>> | 84% | 45,382 psi | 70% | 2657 fps | 95.8% |
| Somchem S365 | <<locked>> | 80% | 41,176 psi | 63% | 2641 fps | 100% |
| Somchem S385 | <<locked>> | 80% | 37,492 psi | 58% | 2533 fps | 96.6% |
| Vihtavuori N150 | <<locked>> | 80% | 49,661 psi | 76% | 2680 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 45,658 psi | 70% | 2680 fps | 100% |
| Vihtavuori N165 | <<locked>> | 82% | 34,679 psi | 53% | 2464 fps | 95.1% |
| Vihtavuori N550 | <<locked>> | 80% | 44,962 psi | 69% | 2684 fps | 99.9% |
| Vihtavuori N555 | <<locked>> | 80% | 36,158 psi | 56% | 2549 fps | 99.3% |
| Vihtavuori N560 | <<locked>> | 86% | 43,250 psi | 67% | 2743 fps | 95.4% |
| Vihtavuori N565 | <<locked>> | 92% | 43,337 psi | 67% | 2730 fps | 95.8% |
| Vihtavuori N568 | <<locked>> | 98% | 46,296 psi | 71% | 2835 fps | 95.2% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 44,730 psi | 69% | 2644 fps | 100% |
| Winchester 760 | <<locked>> | 80% | 46,789 psi | 72% | 2746 fps | 99.2% |
| Winchester StaBALL HD | 57.8 gr | 80% | 28,558 psi | 44% | 2480 fps | 99.5% |
| Winchester Supreme 780 | <<locked>> | 82% | 36,593 psi | 56% | 2513 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 | Sierra SBT GameKing. Winchester StaBALL HD delivers the highest muzzle velocity at 3,028 fps; across all powders the maximum-charge window runs from 1,791 fps to 3,028 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 1:11.5 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, Accurate MAGPRO, Ramshot Grand rank at the top here: for 7 mm PRC with the .284 | 160gr | Sierra SBT GameKing 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.