Load Specifications
Load data in caliber 7 mm WSM with .284 | 140gr | Alaska Bullet Works Kodiak SP SPBC bullet and 88 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 ReloadSwiss RS 70.
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 2495 | <<locked>> | 82% | 57,682 psi | 90% | 2927 fps | 100% |
| Accurate 2700 | <<locked>> | 82% | 55,027 psi | 86% | 2946 fps | 98.8% |
| Accurate 3100ᴾ | <<locked>> | 100% | 57,566 psi | 90% | 3054 fps | 99.9% |
| Accurate 4064 | <<locked>> | 82% | 54,607 psi | 86% | 2933 fps | 100% |
| Accurate 4350 | <<locked>> | 90% | 55,564 psi | 87% | 3048 fps | 100% |
| Accurate MAGPRO | <<locked>> | 98% | 55,753 psi | 87% | 3136 fps | 96.3% |
| ADI AR 2208 | <<locked>> | 86% | 57,711 psi | 90% | 3018 fps | 100% |
| ADI AR 2209 | <<locked>> | 96% | 56,521 psi | 89% | 3094 fps | 98.4% |
| ADI AR 2213 | <<locked>> | 98% | 54,056 psi | 85% | 3081 fps | 96.9% |
| Alliant Power Pro 2000-MR | <<locked>> | 82% | 57,682 psi | 90% | 3150 fps | 100% |
| Alliant Power Pro Varmint | <<locked>> | 96% | 56,521 psi | 89% | 3087 fps | 98.5% |
| Alliant Reloder- TS 15.5 | <<locked>> | 84% | 55,143 psi | 86% | 2989 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 82% | 55,376 psi | 87% | 3012 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 92% | 56,144 psi | 88% | 3104 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 86% | 53,940 psi | 85% | 3071 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 96% | 55,753 psi | 87% | 3077 fps | 98.4% |
| Alliant Reloder-22ᴾ | <<locked>> | 100% | 57,101 psi | 89% | 3143 fps | 98.7% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 54,085 psi | 85% | 3068 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 46,862 psi | 73% | 2992 fps | 99.5% |
| Alliant Reloder-26 | <<locked>> | 96% | 54,317 psi | 85% | 3156 fps | 100% |
| Bofors RP15ᴾ | <<locked>> | 100% | 52,214 psi | 82% | 3058 fps | 97.8% |
| Bofors RP3 | <<locked>> | 84% | 56,202 psi | 88% | 3005 fps | 100% |
| Bofors RP5ᴾ | <<locked>> | 100% | 57,101 psi | 89% | 3143 fps | 98.7% |
| Bofors RP7 | <<locked>> | 88% | 55,419 psi | 87% | 2992 fps | 99% |
| Hodgdon H380 | <<locked>> | 84% | 56,376 psi | 88% | 3022 fps | 100% |
| Hodgdon H414 | <<locked>> | 90% | 57,566 psi | 90% | 3100 fps | 99.6% |
| Hodgdon H4350 | <<locked>> | 88% | 57,101 psi | 89% | 3058 fps | 98.8% |
| Hodgdon H4831 | <<locked>> | 96% | 54,317 psi | 85% | 3028 fps | 96.3% |
| Hodgdon H4831 SC | <<locked>> | 98% | 56,768 psi | 89% | 3068 fps | 96.8% |
| Hodgdon Hybrid 100V | <<locked>> | 94% | 56,739 psi | 89% | 3025 fps | 100% |
| Hodgdon Retumboᴾ | <<locked>> | 100% | 45,992 psi | 72% | 3031 fps | 97.3% |
| Hodgdon Superformance | <<locked>> | 88% | 54,099 psi | 85% | 3077 fps | 99.1% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,477 psi | 57% | 1893 fps | 100% |
| IMR 4064 | <<locked>> | 84% | 57,232 psi | 90% | 2999 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 82% | 56,260 psi | 88% | 2982 fps | 99.4% |
| IMR 4350 | <<locked>> | 92% | 56,478 psi | 89% | 3028 fps | 99.1% |
| IMR 4451 Enduron | <<locked>> | 88% | 57,000 psi | 89% | 3022 fps | 99.4% |
| IMR 4831 | <<locked>> | 92% | 55,999 psi | 88% | 3038 fps | 100% |
| IMR 4895 | <<locked>> | 82% | 56,811 psi | 89% | 3041 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 96% | 55,825 psi | 87% | 3018 fps | 96.8% |
| IMR 7828 SSCᴾ | <<locked>> | 100% | 55,361 psi | 87% | 3120 fps | 97.3% |
| Lovex S062 | <<locked>> | 84% | 57,464 psi | 90% | 2992 fps | 100% |
| Lovex S065 | <<locked>> | 90% | 57,377 psi | 90% | 3018 fps | 99.9% |
| Lovex S070 | <<locked>> | 90% | 55,172 psi | 86% | 3005 fps | 99.4% |
| Lovex S071ᴾ | <<locked>> | 100% | 47,645 psi | 75% | 2894 fps | 98.9% |
| Norma 203B | <<locked>> | 82% | 54,708 psi | 86% | 2995 fps | 100% |
| Norma 204 | <<locked>> | 92% | 57,493 psi | 90% | 3081 fps | 98.4% |
| Norma MRP | <<locked>> | 98% | 56,826 psi | 89% | 3169 fps | 99.5% |
| Norma URP | <<locked>> | 90% | 54,085 psi | 85% | 3028 fps | 100% |
| Ramshot Big Game | <<locked>> | 82% | 55,622 psi | 87% | 3022 fps | 100% |
| Ramshot Grandᴾ | <<locked>> | 100% | 56,072 psi | 88% | 3140 fps | 97.8% |
| Ramshot Hunter | <<locked>> | 92% | 56,521 psi | 89% | 3084 fps | 99.8% |
| Ramshot Magnumᴾ | <<locked>> | 100% | 50,111 psi | 79% | 3005 fps | 98.2% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 37,304 psi | 58% | 1939 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 84% | 56,289 psi | 88% | 3009 fps | 99.6% |
| ReloadSwiss RS 60 | <<locked>> | 86% | 57,290 psi | 90% | 3120 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 90% | 55,579 psi | 87% | 3071 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 90% | 53,708 psi | 84% | 3094 fps | 100% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 46,035 psi | 72% | 3025 fps | 98.3% |
| Rottweil R 902 | <<locked>> | 82% | 55,956 psi | 88% | 2953 fps | 100% |
| Rottweil R 903 | <<locked>> | 86% | 56,318 psi | 88% | 3002 fps | 100% |
| Rottweil R 904 | <<locked>> | 94% | 54,346 psi | 85% | 2999 fps | 97% |
| Rottweil R 905 | <<locked>> | 96% | 55,085 psi | 86% | 3064 fps | 98.4% |
| Rottweil R 907 | <<locked>> | 88% | 55,419 psi | 87% | 2992 fps | 99% |
| Shooters World Long Rifle | <<locked>> | 90% | 57,377 psi | 90% | 3018 fps | 99.9% |
| Shooters World Precision | <<locked>> | 84% | 57,464 psi | 90% | 2992 fps | 100% |
| Shooters World SW4350 | <<locked>> | 90% | 55,172 psi | 86% | 3005 fps | 99.4% |
| SNPE Vectan SP 11 | <<locked>> | 84% | 54,389 psi | 85% | 3012 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 86% | 57,087 psi | 89% | 2881 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 90% | 56,826 psi | 89% | 2966 fps | 99.4% |
| SNPE Vectan Tubal 8000 | <<locked>> | 96% | 54,621 psi | 86% | 3058 fps | 98.3% |
| Somchem S355 | <<locked>> | 86% | 56,260 psi | 88% | 2999 fps | 100% |
| Somchem S361 | <<locked>> | 94% | 56,318 psi | 88% | 2995 fps | 96.7% |
| Somchem S365 | <<locked>> | 94% | 57,508 psi | 90% | 3087 fps | 100% |
| Somchem S385 | <<locked>> | 96% | 55,695 psi | 87% | 3038 fps | 99% |
| Vihtavuori N135 | <<locked>> | 82% | 56,550 psi | 89% | 2910 fps | 100% |
| Vihtavuori N140 | <<locked>> | 82% | 56,579 psi | 89% | 2923 fps | 100% |
| Vihtavuori N150 | <<locked>> | 88% | 57,580 psi | 90% | 2969 fps | 100% |
| Vihtavuori N160 | <<locked>> | 90% | 56,173 psi | 88% | 3025 fps | 100% |
| Vihtavuori N165ᴾ | <<locked>> | 100% | 55,187 psi | 86% | 3012 fps | 98.7% |
| Vihtavuori N540 | <<locked>> | 82% | 54,679 psi | 86% | 2917 fps | 100% |
| Vihtavuori N550 | <<locked>> | 90% | 55,448 psi | 87% | 3028 fps | 100% |
| Vihtavuori N555 | <<locked>> | 98% | 56,608 psi | 89% | 3094 fps | 100% |
| Vihtavuori N560 | <<locked>> | 98% | 56,898 psi | 89% | 3159 fps | 97.2% |
| Winchester 6.5 StaBALL | <<locked>> | 90% | 55,825 psi | 87% | 2986 fps | 100% |
| Winchester 760 | <<locked>> | 88% | 54,143 psi | 85% | 3045 fps | 99.2% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 49,792 psi | 78% | 3136 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 98% | 55,811 psi | 87% | 3031 fps | 98.3% |
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 2495 | <<locked>> | 80% | 53,911 psi | 84% | 2874 fps | 100% |
| Accurate 2700 | <<locked>> | 80% | 51,343 psi | 80% | 2887 fps | 98.2% |
| Accurate 3100 | <<locked>> | 84% | 33,315 psi | 52% | 2585 fps | 95% |
| Accurate 4064 | <<locked>> | 80% | 51,140 psi | 80% | 2881 fps | 100% |
| Accurate 4350 | <<locked>> | 80% | 39,320 psi | 62% | 2749 fps | 98.6% |
| Accurate MAGPRO | <<locked>> | 96% | 52,098 psi | 82% | 3074 fps | 95.4% |
| ADI AR 2208 | <<locked>> | 80% | 47,964 psi | 75% | 2854 fps | 99.9% |
| ADI AR 2209 | <<locked>> | 88% | 43,381 psi | 68% | 2848 fps | 95.5% |
| ADI AR 2213 | <<locked>> | 94% | 47,398 psi | 74% | 2956 fps | 95.1% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 53,592 psi | 84% | 3084 fps | 100% |
| Alliant Power Pro Varmint | <<locked>> | 88% | 43,497 psi | 68% | 2848 fps | 95.6% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 48,646 psi | 76% | 2884 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 80% | 51,880 psi | 81% | 2956 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 80% | 38,101 psi | 60% | 2759 fps | 98.7% |
| Alliant Reloder-17 | <<locked>> | 80% | 43,410 psi | 68% | 2887 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 88% | 43,018 psi | 67% | 2838 fps | 95.5% |
| Alliant Reloder-22 | <<locked>> | 92% | 43,656 psi | 68% | 2894 fps | 95.9% |
| Alliant Reloder-23 | <<locked>> | 80% | 28,021 psi | 44% | 2497 fps | 96.5% |
| Alliant Reloder-25 | <<locked>> | 90% | 34,011 psi | 53% | 2687 fps | 95.9% |
| Alliant Reloder-26 | 60.5 gr | 82% | 32,271 psi | 51% | 2677 fps | 96% |
| Bofors RP15 | <<locked>> | 94% | 43,047 psi | 67% | 2881 fps | 95.5% |
| Bofors RP3 | <<locked>> | 80% | 49,153 psi | 77% | 2894 fps | 100% |
| Bofors RP5 | <<locked>> | 92% | 43,656 psi | 68% | 2894 fps | 95.9% |
| Bofors RP7 | <<locked>> | 80% | 43,091 psi | 68% | 2762 fps | 96.6% |
| Hodgdon H380 | <<locked>> | 80% | 49,443 psi | 77% | 2907 fps | 99.7% |
| Hodgdon H414 | <<locked>> | 80% | 41,307 psi | 65% | 2799 fps | 96.8% |
| Hodgdon H4350 | <<locked>> | 80% | 44,019 psi | 69% | 2815 fps | 96.1% |
| Hodgdon H4831 | <<locked>> | 94% | 50,734 psi | 80% | 2963 fps | 95.4% |
| Hodgdon H4831 SC | <<locked>> | 94% | 49,763 psi | 78% | 2946 fps | 95.2% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 35,810 psi | 56% | 2648 fps | 99.1% |
| Hodgdon Retumbo | <<locked>> | 96% | 40,277 psi | 63% | 2894 fps | 95.1% |
| Hodgdon Superformance | <<locked>> | 80% | 40,248 psi | 63% | 2805 fps | 96% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,311 psi | 43% | 1693 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 50,444 psi | 79% | 2894 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 80% | 52,808 psi | 83% | 2927 fps | 99% |
| IMR 4350 | <<locked>> | 80% | 38,667 psi | 61% | 2684 fps | 95.3% |
| IMR 4451 Enduron | <<locked>> | 80% | 44,512 psi | 70% | 2795 fps | 97.4% |
| IMR 4831 | <<locked>> | 80% | 37,811 psi | 59% | 2697 fps | 98.3% |
| IMR 4895 | <<locked>> | 80% | 53,243 psi | 83% | 2982 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 92% | 49,052 psi | 77% | 2897 fps | 95.2% |
| IMR 7828 SSC | <<locked>> | 96% | 48,283 psi | 76% | 2989 fps | 95.6% |
| Lovex S062 | <<locked>> | 80% | 50,705 psi | 79% | 2887 fps | 100% |
| Lovex S065 | <<locked>> | 80% | 41,959 psi | 66% | 2740 fps | 98.1% |
| Lovex S070 | <<locked>> | 80% | 40,263 psi | 63% | 2720 fps | 96.6% |
| Lovex S071 | <<locked>> | 90% | 34,693 psi | 54% | 2618 fps | 95.6% |
| Norma 203B | <<locked>> | 80% | 51,242 psi | 80% | 2940 fps | 100% |
| Norma 204 | <<locked>> | 84% | 43,932 psi | 69% | 2835 fps | 95.5% |
| Norma MRP | 61.6 gr | 86% | 37,246 psi | 58% | 2779 fps | 95.2% |
| Norma URP | <<locked>> | 80% | 38,928 psi | 61% | 2740 fps | 98.4% |
| Ramshot Big Game | <<locked>> | 80% | 51,851 psi | 81% | 2963 fps | 100% |
| Ramshot Grand | <<locked>> | 96% | 48,341 psi | 76% | 2999 fps | 96% |
| Ramshot Hunter | <<locked>> | 80% | 37,840 psi | 59% | 2726 fps | 96.6% |
| Ramshot Magnum | <<locked>> | 94% | 40,074 psi | 63% | 2799 fps | 95.4% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,920 psi | 44% | 1736 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 49,545 psi | 78% | 2894 fps | 98.9% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 46,093 psi | 72% | 2943 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 39,262 psi | 62% | 2766 fps | 98.3% |
| ReloadSwiss RS 70 | 58.5 gr | 80% | 37,840 psi | 59% | 2772 fps | 97.7% |
| ReloadSwiss RS 76 | <<locked>> | 94% | 37,275 psi | 58% | 2805 fps | 95% |
| Rottweil R 902 | <<locked>> | 80% | 52,663 psi | 83% | 2904 fps | 100% |
| Rottweil R 903 | <<locked>> | 80% | 46,267 psi | 73% | 2838 fps | 100% |
| Rottweil R 904 | <<locked>> | 90% | 47,848 psi | 75% | 2884 fps | 95.6% |
| Rottweil R 905 | <<locked>> | 88% | 42,293 psi | 66% | 2822 fps | 95.5% |
| Rottweil R 907 | <<locked>> | 80% | 43,091 psi | 68% | 2762 fps | 96.6% |
| Shooters World Long Rifle | <<locked>> | 80% | 41,959 psi | 66% | 2740 fps | 98.1% |
| Shooters World Precision | <<locked>> | 80% | 50,705 psi | 79% | 2887 fps | 100% |
| Shooters World SW4350 | <<locked>> | 80% | 40,263 psi | 63% | 2720 fps | 96.6% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 47,500 psi | 74% | 2894 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 47,442 psi | 74% | 2743 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 41,234 psi | 65% | 2687 fps | 96.8% |
| SNPE Vectan Tubal 8000 | <<locked>> | 88% | 41,916 psi | 66% | 2818 fps | 95.3% |
| Somchem S355 | <<locked>> | 80% | 46,456 psi | 73% | 2835 fps | 100% |
| Somchem S361 | <<locked>> | 90% | 49,124 psi | 77% | 2871 fps | 95% |
| Somchem S365 | <<locked>> | 80% | 35,476 psi | 56% | 2694 fps | 99.8% |
| Somchem S385 | <<locked>> | 86% | 40,161 psi | 63% | 2746 fps | 95.7% |
| Vihtavuori N135 | <<locked>> | 80% | 53,113 psi | 83% | 2864 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 53,011 psi | 83% | 2874 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 44,396 psi | 70% | 2762 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 40,364 psi | 63% | 2740 fps | 98.7% |
| Vihtavuori N165 | <<locked>> | 90% | 39,537 psi | 62% | 2723 fps | 95.1% |
| Vihtavuori N540 | <<locked>> | 80% | 51,314 psi | 80% | 2867 fps | 100% |
| Vihtavuori N550 | <<locked>> | 80% | 39,827 psi | 62% | 2740 fps | 98.4% |
| Vihtavuori N555 | <<locked>> | 80% | 31,183 psi | 49% | 2582 fps | 96.7% |
| Vihtavuori N560 | <<locked>> | 94% | 49,719 psi | 78% | 3028 fps | 95.5% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 39,465 psi | 62% | 2707 fps | 99.8% |
| Winchester 760 | <<locked>> | 80% | 41,307 psi | 65% | 2799 fps | 96.8% |
| Winchester StaBALL HD | <<locked>> | 80% | 24,816 psi | 39% | 2461 fps | 95% |
| Winchester Supreme 780 | <<locked>> | 90% | 42,235 psi | 66% | 2785 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 88 powders for 7 mm WSM loaded with the .284 | 140gr | Alaska Bullet Works Kodiak SP SPBC. Norma MRP delivers the highest muzzle velocity at 3,169 fps; across all powders the maximum-charge window runs from 1,893 fps to 3,169 fps. Accurate 3100 gives the best case fill at 100 %, and 88 of the 88 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (440 MPa), the top charges use 57–90 %, leaving at least 10 % headroom. The 140.0 gr projectile in 0.284" calls for a 1:12.5 twist; slower twists will usually not stabilise this weight. Accurate 3100, Alliant Reloder-22, Alliant Reloder-23 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, ReloadSwiss RS 70 rank at the top here: for 7 mm WSM with the .284 | 140gr | Alaska Bullet Works Kodiak SP SPBC 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.