Load Specifications
Load data in caliber 7 mm PRC with .284 | 150gr | Swift Scirocco bullet and 83 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Alliant Reloder-26, Norma MRP and Vihtavuori N560.
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 2700 | <<locked>> | 82% | 58,465 psi | 90% | 2920 fps | 99.6% |
| Accurate 3100 | <<locked>> | 98% | 58,682 psi | 90% | 2982 fps | 100% |
| Accurate 4064 | <<locked>> | 82% | 58,407 psi | 90% | 2894 fps | 100% |
| Accurate 4350 | <<locked>> | 88% | 56,289 psi | 87% | 2966 fps | 100% |
| Accurate MAGPRO | <<locked>> | 96% | 57,058 psi | 88% | 3074 fps | 97.4% |
| ADI AR 2208 | <<locked>> | 84% | 57,899 psi | 89% | 2930 fps | 100% |
| ADI AR 2209 | <<locked>> | 94% | 57,188 psi | 88% | 3022 fps | 99.1% |
| ADI AR 2213 | <<locked>> | 98% | 58,624 psi | 90% | 3081 fps | 98.6% |
| ADI AR 2217ᴾ | <<locked>> | 100% | 45,774 psi | 70% | 2841 fps | 96.1% |
| ADI AR 2225ᴾ | <<locked>> | 100% | 40,770 psi | 63% | 2799 fps | 97.9% |
| Alliant Reloder- TS 15.5 | <<locked>> | 82% | 55,651 psi | 86% | 2904 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 90% | 57,188 psi | 88% | 3025 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 86% | 58,610 psi | 90% | 3041 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 94% | 56,463 psi | 87% | 3002 fps | 99.1% |
| Alliant Reloder-22 | <<locked>> | 98% | 58,276 psi | 90% | 3074 fps | 99.4% |
| Alliant Reloder-23 | <<locked>> | 98% | 55,593 psi | 86% | 2992 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 51,242 psi | 79% | 2989 fps | 100% |
| Alliant Reloder-26 | <<locked>> | 94% | 55,898 psi | 86% | 3084 fps | 100% |
| Bofors RP15ᴾ | <<locked>> | 100% | 57,116 psi | 88% | 3054 fps | 99.2% |
| Bofors RP3 | <<locked>> | 82% | 56,492 psi | 87% | 2920 fps | 100% |
| Bofors RP30ᴾ | <<locked>> | 100% | 47,268 psi | 73% | 2913 fps | 97% |
| Bofors RP5 | <<locked>> | 98% | 58,276 psi | 90% | 3074 fps | 99.4% |
| Bofors RP7 | <<locked>> | 86% | 55,608 psi | 86% | 2913 fps | 99.5% |
| Hodgdon H1000ᴾ | <<locked>> | 100% | 50,560 psi | 78% | 2936 fps | 97.9% |
| Hodgdon H380 | <<locked>> | 82% | 56,768 psi | 87% | 2943 fps | 100% |
| Hodgdon H414 | <<locked>> | 88% | 58,131 psi | 89% | 3018 fps | 99.9% |
| Hodgdon H4350 | <<locked>> | 86% | 57,450 psi | 88% | 2979 fps | 99.3% |
| Hodgdon H4831 | <<locked>> | 96% | 58,668 psi | 90% | 3018 fps | 98% |
| Hodgdon H4831 SC | <<locked>> | 96% | 57,551 psi | 89% | 2999 fps | 97.8% |
| Hodgdon Hybrid 100V | <<locked>> | 92% | 57,377 psi | 88% | 2943 fps | 100% |
| Hodgdon Retumboᴾ | <<locked>> | 100% | 50,285 psi | 77% | 3045 fps | 99.1% |
| Hodgdon Superformance | <<locked>> | 86% | 54,795 psi | 84% | 3002 fps | 99.6% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,840 psi | 57% | 1847 fps | 100% |
| IMR 4064 | <<locked>> | 82% | 57,261 psi | 88% | 2910 fps | 100% |
| IMR 4350 | <<locked>> | 90% | 57,014 psi | 88% | 2949 fps | 99.6% |
| IMR 4451 Enduron | <<locked>> | 86% | 57,116 psi | 88% | 2940 fps | 99.7% |
| IMR 4831 | <<locked>> | 90% | 56,637 psi | 87% | 2956 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 94% | 56,173 psi | 86% | 2943 fps | 97.7% |
| IMR 7828 SSC | <<locked>> | 98% | 56,304 psi | 87% | 3054 fps | 98.3% |
| Lovex S062 | <<locked>> | 82% | 57,580 psi | 89% | 2900 fps | 100% |
| Lovex S065 | <<locked>> | 88% | 57,624 psi | 89% | 2936 fps | 100% |
| Lovex S070 | <<locked>> | 88% | 55,767 psi | 86% | 2933 fps | 99.8% |
| Lovex S071ᴾ | <<locked>> | 100% | 52,069 psi | 80% | 2884 fps | 99.8% |
| Norma 203B | <<locked>> | 82% | 58,508 psi | 90% | 2963 fps | 100% |
| Norma 204 | <<locked>> | 90% | 58,059 psi | 89% | 3009 fps | 99.1% |
| Norma MRP | <<locked>> | 96% | 58,233 psi | 90% | 3097 fps | 99.9% |
| Norma URP | <<locked>> | 90% | 58,349 psi | 90% | 3002 fps | 100% |
| Ramshot Grand | <<locked>> | 98% | 57,087 psi | 88% | 3077 fps | 98.7% |
| Ramshot Hunter | <<locked>> | 90% | 57,319 psi | 88% | 3009 fps | 100% |
| Ramshot Magnumᴾ | <<locked>> | 100% | 55,230 psi | 85% | 3009 fps | 99.5% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 37,695 psi | 58% | 1890 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 82% | 56,318 psi | 87% | 2923 fps | 99.9% |
| ReloadSwiss RS 60 | <<locked>> | 84% | 58,044 psi | 89% | 3028 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 88% | 56,347 psi | 87% | 2989 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 90% | 58,726 psi | 90% | 3077 fps | 100% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 50,560 psi | 78% | 3041 fps | 99.7% |
| Rottweil R 903 | <<locked>> | 84% | 56,869 psi | 87% | 2920 fps | 100% |
| Rottweil R 904 | <<locked>> | 94% | 58,494 psi | 90% | 2989 fps | 98.5% |
| Rottweil R 905 | <<locked>> | 94% | 55,898 psi | 86% | 2992 fps | 99.1% |
| Rottweil R 907 | <<locked>> | 86% | 55,608 psi | 86% | 2913 fps | 99.5% |
| Shooters World Long Rifle | <<locked>> | 88% | 57,624 psi | 89% | 2936 fps | 100% |
| Shooters World Precision | <<locked>> | 82% | 57,580 psi | 89% | 2900 fps | 100% |
| Shooters World SW4350 | <<locked>> | 88% | 55,767 psi | 86% | 2933 fps | 99.8% |
| SNPE Vectan SP 11 | <<locked>> | 84% | 58,276 psi | 90% | 2976 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 84% | 56,898 psi | 88% | 2792 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 88% | 57,130 psi | 88% | 2890 fps | 99.8% |
| SNPE Vectan Tubal 8000 | <<locked>> | 94% | 55,477 psi | 85% | 2989 fps | 99% |
| Somchem S355 | <<locked>> | 84% | 56,420 psi | 87% | 2910 fps | 100% |
| Somchem S361 | <<locked>> | 92% | 56,681 psi | 87% | 2927 fps | 97.6% |
| Somchem S365 | <<locked>> | 92% | 58,755 psi | 90% | 3005 fps | 100% |
| Somchem S385 | <<locked>> | 94% | 56,695 psi | 87% | 2969 fps | 99.6% |
| Vihtavuori N150 | <<locked>> | 86% | 57,899 psi | 89% | 2884 fps | 100% |
| Vihtavuori N160 | <<locked>> | 88% | 56,681 psi | 87% | 2943 fps | 100% |
| Vihtavuori N165 | <<locked>> | 98% | 56,144 psi | 86% | 2946 fps | 99.3% |
| Vihtavuori N540 | <<locked>> | 82% | 58,465 psi | 90% | 2881 fps | 100% |
| Vihtavuori N550 | <<locked>> | 88% | 55,985 psi | 86% | 2949 fps | 100% |
| Vihtavuori N555 | <<locked>> | 96% | 57,812 psi | 89% | 3018 fps | 100% |
| Vihtavuori N560 | <<locked>> | 96% | 58,160 psi | 89% | 3094 fps | 98.2% |
| Vihtavuori N565ᴾ | <<locked>> | 100% | 53,824 psi | 83% | 3002 fps | 97.6% |
| Winchester 6.5 StaBALL | <<locked>> | 88% | 56,217 psi | 86% | 2900 fps | 100% |
| Winchester 760 | <<locked>> | 88% | 58,378 psi | 90% | 3025 fps | 99.9% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 56,565 psi | 87% | 3130 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 96% | 56,652 psi | 87% | 2966 fps | 99% |
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 2700 | <<locked>> | 80% | 54,679 psi | 84% | 2861 fps | 99.2% |
| Accurate 3100 | <<locked>> | 80% | 31,850 psi | 49% | 2470 fps | 95.4% |
| Accurate 4064 | <<locked>> | 80% | 55,056 psi | 85% | 2848 fps | 100% |
| Accurate 4350 | <<locked>> | 80% | 42,917 psi | 66% | 2736 fps | 99.6% |
| Accurate MAGPRO | <<locked>> | 92% | 49,530 psi | 76% | 2943 fps | 95.7% |
| ADI AR 2208 | <<locked>> | 80% | 51,024 psi | 78% | 2825 fps | 100% |
| ADI AR 2209 | <<locked>> | 84% | 41,089 psi | 63% | 2720 fps | 95.8% |
| ADI AR 2213 | <<locked>> | 90% | 44,744 psi | 69% | 2828 fps | 95.5% |
| ADI AR 2217 | <<locked>> | 98% | 42,859 psi | 66% | 2776 fps | 95% |
| ADI AR 2225 | <<locked>> | 96% | 35,723 psi | 55% | 2667 fps | 95.8% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 52,243 psi | 80% | 2851 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 80% | 41,133 psi | 63% | 2743 fps | 99.7% |
| Alliant Reloder-17 | <<locked>> | 80% | 47,239 psi | 73% | 2867 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 84% | 40,944 psi | 63% | 2713 fps | 95.8% |
| Alliant Reloder-22 | <<locked>> | 86% | 38,986 psi | 60% | 2710 fps | 95.3% |
| Alliant Reloder-23 | <<locked>> | 80% | 30,618 psi | 47% | 2500 fps | 98.5% |
| Alliant Reloder-25 | <<locked>> | 84% | 30,487 psi | 47% | 2513 fps | 95.3% |
| Alliant Reloder-26 | 60.5 gr | 80% | 33,083 psi | 51% | 2625 fps | 97.4% |
| Bofors RP15 | <<locked>> | 88% | 38,667 psi | 59% | 2700 fps | 95% |
| Bofors RP3 | <<locked>> | 80% | 52,924 psi | 81% | 2867 fps | 100% |
| Bofors RP30 | <<locked>> | 96% | 41,292 psi | 64% | 2792 fps | 95.2% |
| Bofors RP5 | <<locked>> | 86% | 38,986 psi | 60% | 2710 fps | 95.3% |
| Bofors RP7 | <<locked>> | 80% | 46,180 psi | 71% | 2749 fps | 98.1% |
| Hodgdon H1000 | <<locked>> | 94% | 41,147 psi | 63% | 2743 fps | 95.2% |
| Hodgdon H380 | <<locked>> | 80% | 53,011 psi | 82% | 2881 fps | 100% |
| Hodgdon H414 | <<locked>> | 80% | 44,715 psi | 69% | 2785 fps | 98.3% |
| Hodgdon H4350 | <<locked>> | 80% | 47,297 psi | 73% | 2805 fps | 97.8% |
| Hodgdon H4831 | <<locked>> | 90% | 47,834 psi | 74% | 2835 fps | 95.7% |
| Hodgdon H4831 SC | <<locked>> | 90% | 46,920 psi | 72% | 2815 fps | 95.4% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 38,914 psi | 60% | 2631 fps | 99.9% |
| Hodgdon Retumbo | <<locked>> | 92% | 38,551 psi | 59% | 2779 fps | 95.7% |
| Hodgdon Superformance | <<locked>> | 80% | 43,830 psi | 67% | 2802 fps | 97.9% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,644 psi | 43% | 1650 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 53,708 psi | 83% | 2858 fps | 100% |
| IMR 4350 | <<locked>> | 80% | 41,611 psi | 64% | 2674 fps | 97.1% |
| IMR 4451 Enduron | <<locked>> | 80% | 47,369 psi | 73% | 2772 fps | 98.7% |
| IMR 4831 | <<locked>> | 80% | 40,901 psi | 63% | 2684 fps | 99.4% |
| IMR 4955 Enduron | <<locked>> | 88% | 46,557 psi | 72% | 2772 fps | 95.6% |
| IMR 7828 SSC | <<locked>> | 90% | 42,931 psi | 66% | 2802 fps | 95% |
| Lovex S062 | <<locked>> | 80% | 54,317 psi | 84% | 2854 fps | 100% |
| Lovex S065 | <<locked>> | 80% | 45,063 psi | 69% | 2726 fps | 99.2% |
| Lovex S070 | <<locked>> | 80% | 43,352 psi | 67% | 2707 fps | 98.2% |
| Lovex S071 | <<locked>> | 84% | 31,241 psi | 48% | 2454 fps | 95.1% |
| Norma 203B | <<locked>> | 80% | 54,926 psi | 85% | 2907 fps | 100% |
| Norma 204 | <<locked>> | 80% | 41,307 psi | 64% | 2703 fps | 95.7% |
| Norma MRP | 60.2 gr | 82% | 35,505 psi | 55% | 2657 fps | 95.5% |
| Norma URP | <<locked>> | 80% | 42,293 psi | 65% | 2726 fps | 99.5% |
| Ramshot Grand | <<locked>> | 90% | 42,641 psi | 66% | 2805 fps | 95.3% |
| Ramshot Hunter | <<locked>> | 80% | 41,002 psi | 63% | 2717 fps | 98.2% |
| Ramshot Magnum | <<locked>> | 90% | 37,985 psi | 58% | 2680 fps | 95.8% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 28,108 psi | 43% | 1686 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 52,895 psi | 81% | 2867 fps | 99.7% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 50,125 psi | 77% | 2913 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 42,772 psi | 66% | 2759 fps | 99.5% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 41,147 psi | 63% | 2772 fps | 99.2% |
| ReloadSwiss RS 76 | <<locked>> | 90% | 35,462 psi | 55% | 2694 fps | 95.5% |
| Rottweil R 903 | <<locked>> | 80% | 49,937 psi | 77% | 2812 fps | 100% |
| Rottweil R 904 | <<locked>> | 84% | 42,598 psi | 66% | 2703 fps | 95% |
| Rottweil R 905 | <<locked>> | 84% | 40,277 psi | 62% | 2700 fps | 95.8% |
| Rottweil R 907 | <<locked>> | 80% | 46,180 psi | 71% | 2749 fps | 98.1% |
| Shooters World Long Rifle | <<locked>> | 80% | 45,063 psi | 69% | 2726 fps | 99.2% |
| Shooters World Precision | <<locked>> | 80% | 54,317 psi | 84% | 2854 fps | 100% |
| Shooters World SW4350 | <<locked>> | 80% | 43,352 psi | 67% | 2707 fps | 98.2% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 51,111 psi | 79% | 2867 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 50,241 psi | 77% | 2697 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 44,005 psi | 68% | 2667 fps | 98.2% |
| SNPE Vectan Tubal 8000 | <<locked>> | 84% | 39,929 psi | 61% | 2694 fps | 95.7% |
| Somchem S355 | <<locked>> | 80% | 49,922 psi | 77% | 2808 fps | 100% |
| Somchem S361 | <<locked>> | 86% | 46,441 psi | 71% | 2749 fps | 95.3% |
| Somchem S365 | <<locked>> | 80% | 39,059 psi | 60% | 2684 fps | 100% |
| Somchem S385 | <<locked>> | 80% | 35,737 psi | 55% | 2566 fps | 95.1% |
| Vihtavuori N150 | <<locked>> | 80% | 47,732 psi | 73% | 2733 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 43,671 psi | 67% | 2723 fps | 99.6% |
| Vihtavuori N165 | <<locked>> | 86% | 37,695 psi | 58% | 2605 fps | 95.5% |
| Vihtavuori N540 | <<locked>> | 80% | 54,737 psi | 84% | 2828 fps | 100% |
| Vihtavuori N550 | <<locked>> | 80% | 43,047 psi | 66% | 2726 fps | 99.5% |
| Vihtavuori N555 | <<locked>> | 80% | 34,243 psi | 53% | 2579 fps | 98.4% |
| Vihtavuori N560 | 66.1 gr | 90% | 47,239 psi | 73% | 2900 fps | 95.8% |
| Vihtavuori N565 | <<locked>> | 94% | 43,714 psi | 67% | 2815 fps | 95.1% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 42,728 psi | 66% | 2687 fps | 100% |
| Winchester 760 | <<locked>> | 80% | 44,715 psi | 69% | 2785 fps | 98.3% |
| Winchester StaBALL HD | <<locked>> | 80% | 27,093 psi | 42% | 2490 fps | 98.1% |
| Winchester Supreme 780 | <<locked>> | 86% | 40,045 psi | 62% | 2664 fps | 95.5% |
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 89 powders for 7 mm PRC loaded with the .284 | 150gr | Swift Scirocco. Winchester StaBALL HD delivers the highest muzzle velocity at 3,130 fps; across all powders the maximum-charge window runs from 1,847 fps to 3,130 fps. ADI AR 2217 gives the best case fill at 100 %, and 89 of the 89 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (448 MPa), the top charges use 56–90 %, leaving at least 10 % headroom. The 150.0 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, 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. Alliant Reloder-26, Norma MRP, Vihtavuori N560 rank at the top here: for 7 mm PRC with the .284 | 150gr | Swift Scirocco they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, IMR 8133 Enduron, ReloadSwiss RS 80, 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.