Load Specifications
Load data in caliber 7 mm WSM with .284 | 180gr | Berger BT Target bullet and 76 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% | 54,926 psi | 86% | 2680 fps | 100% |
| Accurate 4350 | <<locked>> | 86% | 56,405 psi | 88% | 2707 fps | 100% |
| Accurate MAGPRO | <<locked>> | 94% | 57,116 psi | 90% | 2831 fps | 98.8% |
| ADI AR 2208 | <<locked>> | 82% | 57,217 psi | 90% | 2657 fps | 100% |
| ADI AR 2209 | <<locked>> | 92% | 56,869 psi | 89% | 2762 fps | 99.8% |
| ADI AR 2213 | <<locked>> | 94% | 54,563 psi | 86% | 2769 fps | 99.1% |
| ADI AR 2217ᴾ | <<locked>> | 100% | 49,066 psi | 77% | 2677 fps | 98.6% |
| ADI AR 2225ᴾ | <<locked>> | 100% | 43,598 psi | 68% | 2641 fps | 99.7% |
| Alliant Power Pro Varmint | <<locked>> | 92% | 57,261 psi | 90% | 2762 fps | 99.8% |
| Alliant Reloder-16 | <<locked>> | 88% | 57,246 psi | 90% | 2756 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 82% | 54,592 psi | 86% | 2720 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 92% | 56,550 psi | 89% | 2753 fps | 99.8% |
| Alliant Reloder-22 | <<locked>> | 94% | 54,563 psi | 86% | 2766 fps | 99.8% |
| Alliant Reloder-23 | <<locked>> | 96% | 55,825 psi | 87% | 2733 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 55,013 psi | 86% | 2795 fps | 100% |
| Alliant Reloder-26 | <<locked>> | 92% | 56,086 psi | 88% | 2822 fps | 100% |
| Baschieri & Pellagri 109 | <<locked>> | 96% | 56,260 psi | 88% | 2733 fps | 97.1% |
| Bofors RP15 | <<locked>> | 98% | 57,377 psi | 90% | 2805 fps | 99.9% |
| Bofors RP30ᴾ | <<locked>> | 100% | 51,140 psi | 80% | 2746 fps | 99.1% |
| Bofors RP5 | <<locked>> | 94% | 54,563 psi | 86% | 2766 fps | 99.8% |
| Bofors RP7 | <<locked>> | 84% | 55,216 psi | 87% | 2654 fps | 99.9% |
| Hodgdon H1000ᴾ | <<locked>> | 100% | 53,969 psi | 85% | 2759 fps | 99.6% |
| Hodgdon H414 | <<locked>> | 84% | 54,331 psi | 85% | 2707 fps | 100% |
| Hodgdon H4350 | <<locked>> | 84% | 57,072 psi | 89% | 2720 fps | 99.9% |
| Hodgdon H4831 | <<locked>> | 92% | 54,592 psi | 86% | 2710 fps | 98.6% |
| Hodgdon H4831 SC | <<locked>> | 94% | 57,130 psi | 90% | 2746 fps | 98.9% |
| Hodgdon Hybrid 100V | <<locked>> | 90% | 57,522 psi | 90% | 2680 fps | 100% |
| Hodgdon Retumboᴾ | <<locked>> | 100% | 53,896 psi | 84% | 2867 fps | 100% |
| Hodgdon Superformance | <<locked>> | 84% | 54,447 psi | 85% | 2743 fps | 100% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 37,260 psi | 58% | 1667 fps | 100% |
| IMR 4350 | <<locked>> | 88% | 56,753 psi | 89% | 2697 fps | 100% |
| IMR 4451 Enduron | <<locked>> | 84% | 56,463 psi | 88% | 2674 fps | 100% |
| IMR 4831 | <<locked>> | 88% | 56,608 psi | 89% | 2697 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 92% | 55,651 psi | 87% | 2694 fps | 98.9% |
| IMR 7828 SSC | <<locked>> | 96% | 56,115 psi | 88% | 2802 fps | 99.4% |
| IMR 8133 Enduronᴾ | <<locked>> | 100% | 39,073 psi | 61% | 2546 fps | 96.3% |
| Lovex S065 | <<locked>> | 86% | 57,276 psi | 90% | 2674 fps | 100% |
| Lovex S070 | <<locked>> | 86% | 55,419 psi | 87% | 2674 fps | 100% |
| Lovex S071ᴾ | <<locked>> | 100% | 55,767 psi | 87% | 2694 fps | 100% |
| Norma 204 | <<locked>> | 88% | 57,595 psi | 90% | 2749 fps | 99.8% |
| Norma 217ᴾ | <<locked>> | 100% | 39,291 psi | 62% | 2575 fps | 98.6% |
| Norma MRP | <<locked>> | 92% | 54,534 psi | 85% | 2789 fps | 100% |
| Norma URP | <<locked>> | 86% | 54,810 psi | 86% | 2690 fps | 100% |
| Ramshot Grand | <<locked>> | 96% | 56,956 psi | 89% | 2825 fps | 99.6% |
| Ramshot Hunter | <<locked>> | 88% | 57,014 psi | 89% | 2746 fps | 100% |
| Ramshot Magnum | <<locked>> | 98% | 55,187 psi | 86% | 2762 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 38,043 psi | 60% | 1706 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 86% | 56,144 psi | 88% | 2726 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 86% | 54,433 psi | 85% | 2756 fps | 100% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 54,534 psi | 85% | 2864 fps | 100% |
| ReloadSwiss RS 80ᴾ | <<locked>> | 100% | 49,400 psi | 77% | 2759 fps | 97.8% |
| Rottweil R 903 | <<locked>> | 82% | 56,521 psi | 89% | 2651 fps | 100% |
| Rottweil R 904 | <<locked>> | 90% | 54,520 psi | 85% | 2680 fps | 99.1% |
| Rottweil R 905 | <<locked>> | 92% | 55,985 psi | 88% | 2743 fps | 99.8% |
| Rottweil R 907 | <<locked>> | 84% | 55,216 psi | 87% | 2654 fps | 99.9% |
| Shooters World Long Rifle | <<locked>> | 86% | 57,276 psi | 90% | 2674 fps | 100% |
| Shooters World SW4350 | <<locked>> | 86% | 55,419 psi | 87% | 2674 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 82% | 56,318 psi | 88% | 2526 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 86% | 56,434 psi | 88% | 2631 fps | 100% |
| SNPE Vectan Tubal 8000 | <<locked>> | 92% | 55,550 psi | 87% | 2740 fps | 99.8% |
| Somchem S355 | <<locked>> | 82% | 56,057 psi | 88% | 2644 fps | 100% |
| Somchem S361 | <<locked>> | 90% | 56,086 psi | 88% | 2677 fps | 98.8% |
| Somchem S365 | <<locked>> | 88% | 55,216 psi | 87% | 2694 fps | 100% |
| Somchem S385 | <<locked>> | 92% | 56,449 psi | 88% | 2717 fps | 100% |
| Vihtavuori N150 | <<locked>> | 84% | 57,377 psi | 90% | 2618 fps | 100% |
| Vihtavuori N160 | <<locked>> | 86% | 56,565 psi | 89% | 2680 fps | 100% |
| Vihtavuori N165 | <<locked>> | 96% | 56,086 psi | 88% | 2700 fps | 99.9% |
| Vihtavuori N550 | <<locked>> | 86% | 55,680 psi | 87% | 2687 fps | 100% |
| Vihtavuori N555 | <<locked>> | 92% | 54,636 psi | 86% | 2713 fps | 100% |
| Vihtavuori N560 | <<locked>> | 92% | 54,418 psi | 85% | 2785 fps | 98.9% |
| Vihtavuori N565ᴾ | <<locked>> | 100% | 57,725 psi | 90% | 2822 fps | 99.4% |
| Vihtavuori N568ᴾ | <<locked>> | 100% | 50,546 psi | 79% | 2759 fps | 97.4% |
| Winchester 6.5 StaBALL | <<locked>> | 86% | 55,796 psi | 87% | 2641 fps | 100% |
| Winchester 760 | <<locked>> | 84% | 54,578 psi | 86% | 2710 fps | 100% |
| Winchester StaBALL HD | <<locked>> | 98% | 57,290 psi | 90% | 2864 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 94% | 56,492 psi | 89% | 2717 fps | 99.8% |
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% | 34,418 psi | 54% | 2323 fps | 98.1% |
| Accurate 4350 | <<locked>> | 80% | 46,093 psi | 72% | 2556 fps | 100% |
| Accurate MAGPRO | <<locked>> | 84% | 40,234 psi | 63% | 2533 fps | 95% |
| ADI AR 2208 | <<locked>> | 80% | 53,998 psi | 85% | 2615 fps | 100% |
| ADI AR 2209 | <<locked>> | 80% | 38,377 psi | 60% | 2441 fps | 96.8% |
| ADI AR 2213 | <<locked>> | 84% | 39,175 psi | 61% | 2487 fps | 95.7% |
| ADI AR 2217 | <<locked>> | 92% | 37,594 psi | 59% | 2451 fps | 95.4% |
| ADI AR 2225 | <<locked>> | 88% | 29,762 psi | 47% | 2306 fps | 95.2% |
| Alliant Power Pro Varmint | <<locked>> | 80% | 38,798 psi | 61% | 2444 fps | 97% |
| Alliant Reloder-16 | <<locked>> | 80% | 44,005 psi | 69% | 2556 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 80% | 50,792 psi | 80% | 2664 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 80% | 38,435 psi | 60% | 2438 fps | 96.9% |
| Alliant Reloder-22 | <<locked>> | 80% | 34,316 psi | 54% | 2385 fps | 95.6% |
| Alliant Reloder-23 | <<locked>> | 80% | 33,054 psi | 52% | 2352 fps | 99.9% |
| Alliant Reloder-25 | <<locked>> | 80% | 28,747 psi | 45% | 2267 fps | 96.8% |
| Alliant Reloder-26 | <<locked>> | 80% | 35,998 psi | 56% | 2484 fps | 99.6% |
| Baschieri & Pellagri 109 | <<locked>> | 92% | 49,864 psi | 78% | 2625 fps | 95.6% |
| Bofors RP15 | <<locked>> | 82% | 34,069 psi | 53% | 2379 fps | 95.3% |
| Bofors RP30 | <<locked>> | 90% | 36,492 psi | 57% | 2467 fps | 95.6% |
| Bofors RP5 | <<locked>> | 80% | 34,316 psi | 54% | 2385 fps | 95.6% |
| Bofors RP7 | <<locked>> | 80% | 48,646 psi | 76% | 2552 fps | 99.5% |
| Hodgdon H1000 | <<locked>> | 88% | 35,926 psi | 56% | 2415 fps | 95.4% |
| Hodgdon H414 | <<locked>> | 80% | 47,529 psi | 74% | 2598 fps | 99.7% |
| Hodgdon H4350 | <<locked>> | 80% | 50,299 psi | 79% | 2615 fps | 99.4% |
| Hodgdon H4831 | <<locked>> | 82% | 39,030 psi | 61% | 2434 fps | 95% |
| Hodgdon H4831 SC | <<locked>> | 84% | 41,075 psi | 64% | 2477 fps | 95.7% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 41,640 psi | 65% | 2451 fps | 100% |
| Hodgdon Retumbo | <<locked>> | 86% | 34,113 psi | 53% | 2454 fps | 96.1% |
| Hodgdon Superformance | <<locked>> | 80% | 47,007 psi | 74% | 2628 fps | 99.6% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,876 psi | 44% | 1486 fps | 100% |
| IMR 4350 | <<locked>> | 80% | 44,135 psi | 69% | 2493 fps | 99% |
| IMR 4451 Enduron | <<locked>> | 80% | 50,096 psi | 79% | 2579 fps | 99.8% |
| IMR 4831 | <<locked>> | 80% | 43,685 psi | 68% | 2500 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 82% | 40,814 psi | 64% | 2438 fps | 95.8% |
| IMR 7828 SSC | <<locked>> | 84% | 37,594 psi | 59% | 2464 fps | 95.3% |
| IMR 8133 Enduron | <<locked>> | 98% | 36,767 psi | 58% | 2497 fps | 95.5% |
| Lovex S065 | <<locked>> | 80% | 47,718 psi | 75% | 2533 fps | 100% |
| Lovex S070 | <<locked>> | 80% | 45,890 psi | 72% | 2523 fps | 99.6% |
| Lovex S071 | <<locked>> | 80% | 29,718 psi | 47% | 2211 fps | 96.6% |
| Norma 204 | <<locked>> | 80% | 44,150 psi | 69% | 2533 fps | 98.1% |
| Norma 217 | <<locked>> | 92% | 30,284 psi | 47% | 2352 fps | 95% |
| Norma MRP | 54.1 gr | 80% | 35,679 psi | 56% | 2444 fps | 97.6% |
| Norma URP | <<locked>> | 80% | 45,092 psi | 71% | 2539 fps | 100% |
| Ramshot Grand | <<locked>> | 84% | 37,231 psi | 58% | 2470 fps | 95.6% |
| Ramshot Hunter | <<locked>> | 80% | 43,990 psi | 69% | 2543 fps | 99.7% |
| Ramshot Magnum | <<locked>> | 84% | 33,112 psi | 52% | 2359 fps | 96% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 28,442 psi | 45% | 1522 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 45,992 psi | 72% | 2575 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 44,106 psi | 69% | 2592 fps | 100% |
| ReloadSwiss RS 76 | <<locked>> | 84% | 30,864 psi | 48% | 2369 fps | 95.7% |
| ReloadSwiss RS 80 | <<locked>> | 96% | 42,424 psi | 66% | 2628 fps | 95.9% |
| Rottweil R 903 | <<locked>> | 80% | 52,982 psi | 83% | 2602 fps | 100% |
| Rottweil R 904 | <<locked>> | 80% | 39,871 psi | 62% | 2425 fps | 96.1% |
| Rottweil R 905 | <<locked>> | 80% | 37,753 psi | 59% | 2425 fps | 96.9% |
| Rottweil R 907 | <<locked>> | 80% | 48,646 psi | 76% | 2552 fps | 99.5% |
| Shooters World Long Rifle | <<locked>> | 80% | 47,718 psi | 75% | 2533 fps | 100% |
| Shooters World SW4350 | <<locked>> | 80% | 45,890 psi | 72% | 2523 fps | 99.6% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 53,055 psi | 83% | 2484 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 46,572 psi | 73% | 2484 fps | 99.6% |
| SNPE Vectan Tubal 8000 | <<locked>> | 80% | 37,434 psi | 59% | 2418 fps | 96.8% |
| Somchem S355 | <<locked>> | 80% | 52,910 psi | 83% | 2598 fps | 100% |
| Somchem S361 | <<locked>> | 80% | 40,408 psi | 63% | 2411 fps | 95.4% |
| Somchem S365 | <<locked>> | 80% | 42,134 psi | 66% | 2500 fps | 100% |
| Somchem S385 | <<locked>> | 80% | 38,392 psi | 60% | 2411 fps | 97.8% |
| Vihtavuori N150 | <<locked>> | 80% | 50,459 psi | 79% | 2526 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 46,586 psi | 73% | 2536 fps | 100% |
| Vihtavuori N165 | <<locked>> | 80% | 33,185 psi | 52% | 2290 fps | 95.8% |
| Vihtavuori N550 | <<locked>> | 80% | 45,861 psi | 72% | 2539 fps | 100% |
| Vihtavuori N555 | <<locked>> | 80% | 37,086 psi | 58% | 2421 fps | 99.9% |
| Vihtavuori N560 | 55.5 gr | 82% | 38,566 psi | 60% | 2493 fps | 95.1% |
| Vihtavuori N565 | <<locked>> | 88% | 38,551 psi | 60% | 2487 fps | 95.4% |
| Vihtavuori N568 | <<locked>> | 96% | 43,947 psi | 69% | 2641 fps | 95.7% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 45,455 psi | 71% | 2497 fps | 100% |
| Winchester 760 | <<locked>> | 80% | 47,747 psi | 75% | 2602 fps | 99.7% |
| Winchester StaBALL HD | 53.6 gr | 80% | 29,298 psi | 46% | 2372 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 80% | 34,969 psi | 55% | 2339 fps | 95.8% |
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 76 powders for 7 mm WSM loaded with the .284 | 180gr | Berger BT Target. Hodgdon Retumbo delivers the highest muzzle velocity at 2,867 fps; across all powders the maximum-charge window runs from 1,667 fps to 2,867 fps. ADI AR 2217 gives the best case fill at 100 %, and 76 of the 76 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (440 MPa), the top charges use 58–90 %, leaving at least 10 % headroom. The 180.0 gr projectile in 0.284" calls for a 1:10.0 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 WSM with the .284 | 180gr | Berger BT Target 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.