Load Specifications
Load data in caliber 7 mm WSM with .284 | 160gr | Swift A-Frame bullet and 79 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Norma MRP, Vihtavuori N560 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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Max Load - Barrel Length: 24"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 3100 | <<locked>> | 96% | 54,621 psi | 86% | 2831 fps | 100% |
| Accurate 4350 | <<locked>> | 88% | 56,434 psi | 88% | 2871 fps | 100% |
| Accurate MAGPRO | <<locked>> | 96% | 56,782 psi | 89% | 2979 fps | 97.8% |
| ADI AR 2208 | <<locked>> | 84% | 57,696 psi | 90% | 2828 fps | 100% |
| ADI AR 2209 | <<locked>> | 94% | 56,956 psi | 89% | 2923 fps | 99.4% |
| ADI AR 2213 | <<locked>> | 96% | 54,665 psi | 86% | 2923 fps | 98.3% |
| ADI AR 2217ᴾ | <<locked>> | 100% | 45,585 psi | 71% | 2749 fps | 96.5% |
| ADI AR 2225ᴾ | <<locked>> | 100% | 40,480 psi | 63% | 2710 fps | 98.3% |
| Alliant Reloder- TS 15.5 | <<locked>> | 82% | 55,666 psi | 87% | 2805 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 90% | 57,014 psi | 89% | 2923 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 84% | 54,462 psi | 85% | 2887 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 94% | 56,579 psi | 89% | 2913 fps | 99.3% |
| Alliant Reloder-22 | <<locked>> | 96% | 54,389 psi | 85% | 2920 fps | 99.2% |
| Alliant Reloder-23 | <<locked>> | 98% | 55,303 psi | 87% | 2894 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 51,053 psi | 80% | 2897 fps | 100% |
| Alliant Reloder-26 | <<locked>> | 94% | 55,753 psi | 87% | 2986 fps | 100% |
| Baschieri & Pellagri 109 | <<locked>> | 98% | 56,913 psi | 89% | 2884 fps | 95.9% |
| Bofors RP15ᴾ | <<locked>> | 100% | 56,855 psi | 89% | 2956 fps | 99.4% |
| Bofors RP3 | <<locked>> | 82% | 56,449 psi | 88% | 2818 fps | 100% |
| Bofors RP30ᴾ | <<locked>> | 100% | 47,050 psi | 74% | 2828 fps | 97.5% |
| Bofors RP5 | <<locked>> | 96% | 54,389 psi | 85% | 2920 fps | 99.2% |
| Bofors RP7 | <<locked>> | 86% | 55,666 psi | 87% | 2818 fps | 99.6% |
| Hodgdon H1000ᴾ | <<locked>> | 100% | 50,270 psi | 79% | 2841 fps | 98.3% |
| Hodgdon H380 | <<locked>> | 82% | 56,536 psi | 89% | 2841 fps | 100% |
| Hodgdon H414 | <<locked>> | 86% | 54,404 psi | 85% | 2867 fps | 99.8% |
| Hodgdon H4350 | <<locked>> | 86% | 57,246 psi | 90% | 2881 fps | 99.5% |
| Hodgdon H4831 | <<locked>> | 94% | 54,578 psi | 86% | 2861 fps | 97.7% |
| Hodgdon H4831 SC | <<locked>> | 96% | 57,392 psi | 90% | 2904 fps | 98.1% |
| Hodgdon Hybrid 100V | <<locked>> | 92% | 57,334 psi | 90% | 2844 fps | 100% |
| Hodgdon Retumboᴾ | <<locked>> | 100% | 49,951 psi | 78% | 2953 fps | 99.4% |
| Hodgdon Superformance | <<locked>> | 86% | 54,766 psi | 86% | 2904 fps | 99.7% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,898 psi | 58% | 1772 fps | 100% |
| IMR 4064 | <<locked>> | 82% | 57,174 psi | 90% | 2812 fps | 100% |
| IMR 4350 | <<locked>> | 90% | 57,014 psi | 89% | 2858 fps | 99.8% |
| IMR 4451 Enduron | <<locked>> | 86% | 56,956 psi | 89% | 2838 fps | 99.9% |
| IMR 4831 | <<locked>> | 90% | 56,623 psi | 89% | 2861 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 94% | 55,956 psi | 88% | 2848 fps | 98% |
| IMR 7828 SSC | <<locked>> | 98% | 56,043 psi | 88% | 2956 fps | 98.6% |
| Lovex S065 | <<locked>> | 88% | 57,595 psi | 90% | 2838 fps | 100% |
| Lovex S070 | <<locked>> | 88% | 55,550 psi | 87% | 2831 fps | 99.9% |
| Lovex S071ᴾ | <<locked>> | 100% | 51,938 psi | 81% | 2792 fps | 99.9% |
| Norma 204 | <<locked>> | 88% | 54,288 psi | 85% | 2854 fps | 98.9% |
| Norma 217ᴾ | <<locked>> | 100% | 35,969 psi | 56% | 2631 fps | 96.1% |
| Norma MRP | <<locked>> | 94% | 54,099 psi | 85% | 2943 fps | 99.8% |
| Norma URP | <<locked>> | 88% | 54,766 psi | 86% | 2851 fps | 100% |
| Ramshot Grand | <<locked>> | 98% | 56,739 psi | 89% | 2979 fps | 99% |
| Ramshot Hunter | <<locked>> | 90% | 57,101 psi | 89% | 2910 fps | 100% |
| Ramshot Magnumᴾ | <<locked>> | 100% | 54,969 psi | 86% | 2913 fps | 99.7% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 37,608 psi | 59% | 1811 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 82% | 56,188 psi | 88% | 2825 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 82% | 53,911 psi | 84% | 2874 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 88% | 56,347 psi | 88% | 2894 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 88% | 54,491 psi | 85% | 2920 fps | 100% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 50,212 psi | 79% | 2946 fps | 99.9% |
| Rottweil R 903 | <<locked>> | 84% | 56,826 psi | 89% | 2822 fps | 100% |
| Rottweil R 904 | <<locked>> | 92% | 54,969 psi | 86% | 2838 fps | 98.3% |
| Rottweil R 905 | <<locked>> | 94% | 55,970 psi | 88% | 2900 fps | 99.4% |
| Rottweil R 907 | <<locked>> | 86% | 55,666 psi | 87% | 2818 fps | 99.6% |
| Shooters World Long Rifle | <<locked>> | 88% | 57,595 psi | 90% | 2838 fps | 100% |
| Shooters World SW4350 | <<locked>> | 88% | 55,550 psi | 87% | 2831 fps | 99.9% |
| SNPE Vectan SP 11 | <<locked>> | 82% | 54,534 psi | 85% | 2825 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 84% | 56,811 psi | 89% | 2694 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 88% | 57,029 psi | 89% | 2795 fps | 99.9% |
| SNPE Vectan Tubal 8000 | <<locked>> | 94% | 55,506 psi | 87% | 2894 fps | 99.3% |
| Somchem S355 | <<locked>> | 84% | 56,550 psi | 89% | 2815 fps | 100% |
| Somchem S361 | <<locked>> | 92% | 56,333 psi | 88% | 2828 fps | 97.9% |
| Somchem S365 | <<locked>> | 90% | 54,911 psi | 86% | 2858 fps | 100% |
| Somchem S385 | <<locked>> | 94% | 56,362 psi | 88% | 2871 fps | 99.7% |
| Vihtavuori N150 | <<locked>> | 84% | 54,244 psi | 85% | 2736 fps | 100% |
| Vihtavuori N160 | <<locked>> | 88% | 56,811 psi | 89% | 2844 fps | 100% |
| Vihtavuori N165 | <<locked>> | 98% | 55,796 psi | 87% | 2848 fps | 99.5% |
| Vihtavuori N550 | <<locked>> | 88% | 55,709 psi | 87% | 2848 fps | 100% |
| Vihtavuori N555 | <<locked>> | 96% | 57,638 psi | 90% | 2920 fps | 100% |
| Vihtavuori N560 | <<locked>> | 94% | 54,114 psi | 85% | 2933 fps | 97.9% |
| Vihtavuori N565ᴾ | <<locked>> | 100% | 53,577 psi | 84% | 2910 fps | 98% |
| Winchester 6.5 StaBALL | <<locked>> | 88% | 56,130 psi | 88% | 2805 fps | 100% |
| Winchester 760 | <<locked>> | 86% | 54,679 psi | 86% | 2871 fps | 99.8% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 56,057 psi | 88% | 3025 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 96% | 56,623 psi | 89% | 2871 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% | 31,836 psi | 50% | 2395 fps | 96% |
| Accurate 4350 | <<locked>> | 80% | 42,873 psi | 67% | 2651 fps | 99.8% |
| Accurate MAGPRO | 63.9 gr | 90% | 46,079 psi | 72% | 2792 fps | 95.3% |
| ADI AR 2208 | <<locked>> | 80% | 51,039 psi | 80% | 2730 fps | 100% |
| ADI AR 2209 | <<locked>> | 82% | 38,319 psi | 60% | 2575 fps | 95.4% |
| ADI AR 2213 | <<locked>> | 88% | 41,843 psi | 66% | 2680 fps | 95.1% |
| ADI AR 2217 | <<locked>> | 98% | 42,743 psi | 67% | 2694 fps | 95.7% |
| ADI AR 2225 | <<locked>> | 94% | 33,489 psi | 52% | 2533 fps | 95.4% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 52,069 psi | 82% | 2753 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 80% | 41,176 psi | 65% | 2657 fps | 99.8% |
| Alliant Reloder-17 | <<locked>> | 80% | 47,297 psi | 74% | 2776 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 82% | 38,247 psi | 60% | 2572 fps | 95.5% |
| Alliant Reloder-22 | <<locked>> | 86% | 38,812 psi | 61% | 2625 fps | 95.9% |
| Alliant Reloder-23 | <<locked>> | 80% | 30,516 psi | 48% | 2425 fps | 98.9% |
| Alliant Reloder-25 | <<locked>> | 84% | 30,487 psi | 48% | 2441 fps | 96.1% |
| Alliant Reloder-26 | <<locked>> | 80% | 33,040 psi | 52% | 2549 fps | 98% |
| Baschieri & Pellagri 109 | <<locked>> | 96% | 53,548 psi | 84% | 2828 fps | 95.1% |
| Bofors RP15 | <<locked>> | 88% | 38,508 psi | 60% | 2618 fps | 95.6% |
| Bofors RP3 | <<locked>> | 80% | 52,982 psi | 83% | 2769 fps | 100% |
| Bofors RP30 | <<locked>> | 96% | 41,075 psi | 64% | 2707 fps | 95.8% |
| Bofors RP5 | <<locked>> | 86% | 38,812 psi | 61% | 2625 fps | 95.9% |
| Bofors RP7 | <<locked>> | 80% | 46,035 psi | 72% | 2657 fps | 98.5% |
| Hodgdon H1000 | <<locked>> | 94% | 41,104 psi | 64% | 2661 fps | 95.8% |
| Hodgdon H380 | <<locked>> | 80% | 53,113 psi | 83% | 2789 fps | 100% |
| Hodgdon H414 | <<locked>> | 80% | 44,599 psi | 70% | 2697 fps | 98.7% |
| Hodgdon H4350 | <<locked>> | 80% | 47,355 psi | 74% | 2713 fps | 98.2% |
| Hodgdon H4831 | <<locked>> | 88% | 44,759 psi | 70% | 2690 fps | 95.4% |
| Hodgdon H4831 SC | <<locked>> | 88% | 43,903 psi | 69% | 2674 fps | 95.1% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 38,899 psi | 61% | 2549 fps | 100% |
| Hodgdon Retumbo | <<locked>> | 90% | 36,042 psi | 56% | 2635 fps | 95.2% |
| Hodgdon Superformance | <<locked>> | 80% | 43,758 psi | 69% | 2717 fps | 98.3% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,630 psi | 43% | 1581 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 53,722 psi | 84% | 2759 fps | 100% |
| IMR 4350 | <<locked>> | 80% | 41,539 psi | 65% | 2589 fps | 97.6% |
| IMR 4451 Enduron | <<locked>> | 80% | 47,485 psi | 74% | 2684 fps | 99% |
| IMR 4831 | <<locked>> | 80% | 41,046 psi | 64% | 2602 fps | 99.7% |
| IMR 4955 Enduron | <<locked>> | 86% | 43,627 psi | 68% | 2631 fps | 95.3% |
| IMR 7828 SSC | <<locked>> | 90% | 42,757 psi | 67% | 2713 fps | 95.5% |
| Lovex S065 | <<locked>> | 80% | 44,889 psi | 70% | 2631 fps | 99.4% |
| Lovex S070 | <<locked>> | 80% | 43,221 psi | 68% | 2618 fps | 98.5% |
| Lovex S071 | <<locked>> | 84% | 31,198 psi | 49% | 2379 fps | 95.8% |
| Norma 204 | <<locked>> | 80% | 41,423 psi | 65% | 2621 fps | 96.3% |
| Norma 217 | <<locked>> | 98% | 33,750 psi | 53% | 2572 fps | 95% |
| Norma MRP | 55.7 gr | 80% | 33,054 psi | 52% | 2513 fps | 95.1% |
| Norma URP | <<locked>> | 80% | 42,192 psi | 66% | 2638 fps | 99.7% |
| Ramshot Grand | <<locked>> | 90% | 42,670 psi | 67% | 2726 fps | 95.9% |
| Ramshot Hunter | <<locked>> | 80% | 41,162 psi | 65% | 2635 fps | 98.7% |
| Ramshot Magnum | <<locked>> | 88% | 35,346 psi | 55% | 2539 fps | 95.4% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 28,123 psi | 44% | 1617 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 52,895 psi | 83% | 2776 fps | 99.8% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 50,183 psi | 79% | 2818 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 42,830 psi | 67% | 2671 fps | 99.7% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 41,089 psi | 64% | 2684 fps | 99.5% |
| ReloadSwiss RS 76 | <<locked>> | 90% | 35,346 psi | 55% | 2615 fps | 96.2% |
| Rottweil R 903 | <<locked>> | 80% | 49,850 psi | 78% | 2717 fps | 100% |
| Rottweil R 904 | <<locked>> | 84% | 42,540 psi | 67% | 2615 fps | 95.6% |
| Rottweil R 905 | <<locked>> | 82% | 37,521 psi | 59% | 2556 fps | 95.5% |
| Rottweil R 907 | <<locked>> | 80% | 46,035 psi | 72% | 2657 fps | 98.5% |
| Shooters World Long Rifle | <<locked>> | 80% | 44,889 psi | 70% | 2631 fps | 99.4% |
| Shooters World SW4350 | <<locked>> | 80% | 43,221 psi | 68% | 2618 fps | 98.5% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 51,285 psi | 80% | 2776 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 50,343 psi | 79% | 2605 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 43,947 psi | 69% | 2579 fps | 98.6% |
| SNPE Vectan Tubal 8000 | <<locked>> | 82% | 37,188 psi | 58% | 2552 fps | 95.3% |
| Somchem S355 | <<locked>> | 80% | 49,748 psi | 78% | 2713 fps | 100% |
| Somchem S361 | <<locked>> | 86% | 46,383 psi | 73% | 2664 fps | 95.8% |
| Somchem S365 | <<locked>> | 80% | 38,986 psi | 61% | 2598 fps | 100% |
| Somchem S385 | <<locked>> | 80% | 35,781 psi | 56% | 2487 fps | 95.8% |
| Vihtavuori N150 | <<locked>> | 80% | 47,616 psi | 75% | 2641 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 43,671 psi | 68% | 2638 fps | 99.8% |
| Vihtavuori N165 | <<locked>> | 84% | 35,288 psi | 55% | 2470 fps | 95.2% |
| Vihtavuori N550 | <<locked>> | 80% | 43,120 psi | 68% | 2641 fps | 99.7% |
| Vihtavuori N555 | <<locked>> | 80% | 34,301 psi | 54% | 2503 fps | 98.9% |
| Vihtavuori N560 | 61.3 gr | 88% | 43,990 psi | 69% | 2749 fps | 95.4% |
| Vihtavuori N565 | <<locked>> | 94% | 43,743 psi | 69% | 2733 fps | 95.7% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 42,699 psi | 67% | 2602 fps | 100% |
| Winchester 760 | <<locked>> | 80% | 44,831 psi | 70% | 2700 fps | 98.7% |
| Winchester StaBALL HD | <<locked>> | 80% | 27,166 psi | 43% | 2428 fps | 98.8% |
| Winchester Supreme 780 | <<locked>> | 84% | 37,405 psi | 59% | 2526 fps | 95.2% |
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 84 powders for 7 mm WSM loaded with the .284 | 160gr | Swift A-Frame. Winchester StaBALL HD delivers the highest muzzle velocity at 3,025 fps; across all powders the maximum-charge window runs from 1,772 fps to 3,025 fps. ADI AR 2217 gives the best case fill at 100 %, and 84 of the 84 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (440 MPa), the top charges use 56–90 %, 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. Norma MRP, Vihtavuori N560, Accurate MAGPRO rank at the top here: for 7 mm WSM with the .284 | 160gr | Swift A-Frame they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, IMR 8133 Enduron, Vihtavuori N170, Vihtavuori N570 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.