Load Specifications
Load data in caliber 7 mm WSM with .284 | 120gr | Prvi Partizan HP bullet and 95 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Alliant Reloder-17, ReloadSwiss RS 60 and Hodgdon H414.
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.
A valid access license is required to use the Personalized Load Calculator.
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>> | 84% | 56,115 psi | 88% | 3127 fps | 100% |
| Accurate 2700 | <<locked>> | 86% | 57,711 psi | 90% | 3192 fps | 98% |
| Accurate 3100ᴾ | <<locked>> | 100% | 51,445 psi | 81% | 3156 fps | 98.5% |
| Accurate 4064 | <<locked>> | 86% | 56,478 psi | 89% | 3186 fps | 100% |
| Accurate 4350 | <<locked>> | 94% | 57,363 psi | 90% | 3291 fps | 99.9% |
| ADI AR 2206H | <<locked>> | 82% | 55,506 psi | 87% | 3212 fps | 100% |
| ADI AR 2208 | <<locked>> | 88% | 56,768 psi | 89% | 3215 fps | 100% |
| ADI AR 2209 | <<locked>> | 98% | 54,694 psi | 86% | 3261 fps | 96.7% |
| ADI Benchmark 8208 | <<locked>> | 82% | 57,696 psi | 90% | 3212 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 84% | 55,912 psi | 88% | 3346 fps | 100% |
| Alliant Reloder- TS 15.5 | <<locked>> | 88% | 57,450 psi | 90% | 3241 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 84% | 54,186 psi | 85% | 3209 fps | 99.9% |
| Alliant Reloder-16 | <<locked>> | 94% | 54,317 psi | 85% | 3291 fps | 99.9% |
| Alliant Reloder-17 | <<locked>> | 90% | 55,695 psi | 87% | 3320 fps | 100% |
| Alliant Reloder-19ᴾ | <<locked>> | 100% | 57,624 psi | 90% | 3307 fps | 97.4% |
| Alliant Reloder-22ᴾ | <<locked>> | 100% | 51,242 psi | 80% | 3238 fps | 96.2% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 48,225 psi | 76% | 3179 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 42,076 psi | 66% | 3071 fps | 97.2% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 55,767 psi | 87% | 3392 fps | 99.9% |
| Baschieri & Pellagri 107 | <<locked>> | 82% | 55,666 psi | 87% | 3228 fps | 99.8% |
| Bofors RP3 | <<locked>> | 86% | 54,607 psi | 86% | 3199 fps | 100% |
| Bofors RP5ᴾ | <<locked>> | 100% | 51,242 psi | 80% | 3238 fps | 96.2% |
| Bofors RP7 | <<locked>> | 90% | 54,244 psi | 85% | 3173 fps | 97.6% |
| Hodgdon H380 | <<locked>> | 86% | 55,230 psi | 87% | 3215 fps | 99.6% |
| Hodgdon H414 | <<locked>> | 92% | 55,912 psi | 88% | 3281 fps | 98.5% |
| Hodgdon H4350 | <<locked>> | 90% | 55,767 psi | 87% | 3238 fps | 97.3% |
| Hodgdon H4895 | <<locked>> | 82% | 56,144 psi | 88% | 3222 fps | 100% |
| Hodgdon Hybrid 100V | <<locked>> | 96% | 54,549 psi | 85% | 3209 fps | 100% |
| Hodgdon LEVERevolution | <<locked>> | 84% | 56,405 psi | 88% | 3261 fps | 100% |
| Hodgdon Superformance | <<locked>> | 92% | 56,333 psi | 88% | 3317 fps | 98.3% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,056 psi | 56% | 2037 fps | 100% |
| Hodgdon VARGET | <<locked>> | 84% | 57,232 psi | 90% | 3225 fps | 100% |
| IMR 3031 | <<locked>> | 82% | 56,753 psi | 89% | 3205 fps | 100% |
| IMR 4064 | <<locked>> | 86% | 56,086 psi | 88% | 3199 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 84% | 55,550 psi | 87% | 3176 fps | 98.3% |
| IMR 4350 | <<locked>> | 94% | 55,100 psi | 86% | 3202 fps | 97.8% |
| IMR 4451 Enduron | <<locked>> | 90% | 55,898 psi | 88% | 3205 fps | 98.3% |
| IMR 4831 | <<locked>> | 94% | 54,114 psi | 85% | 3219 fps | 99.7% |
| IMR 4895 | <<locked>> | 84% | 55,593 psi | 87% | 3241 fps | 100% |
| IMR 8208 XBR | <<locked>> | 82% | 57,696 psi | 90% | 3212 fps | 100% |
| Lovex D073.6 | <<locked>> | 82% | 55,811 psi | 87% | 3182 fps | 100% |
| Lovex S060 | <<locked>> | 82% | 54,331 psi | 85% | 3130 fps | 100% |
| Lovex S062 | <<locked>> | 86% | 56,434 psi | 88% | 3196 fps | 100% |
| Lovex S065 | <<locked>> | 92% | 55,970 psi | 88% | 3202 fps | 99.2% |
| Lovex S070 | <<locked>> | 94% | 57,334 psi | 90% | 3245 fps | 98.7% |
| Lovex S071ᴾ | <<locked>> | 100% | 42,569 psi | 67% | 2982 fps | 96.5% |
| Norma 201 | <<locked>> | 84% | 57,682 psi | 90% | 3209 fps | 100% |
| Norma 202 | <<locked>> | 82% | 55,027 psi | 86% | 3153 fps | 100% |
| Norma 203B | <<locked>> | 86% | 57,058 psi | 89% | 3251 fps | 100% |
| Norma 204 | <<locked>> | 94% | 56,159 psi | 88% | 3261 fps | 96.9% |
| Norma MRPᴾ | <<locked>> | 100% | 54,534 psi | 85% | 3337 fps | 98.3% |
| Norma URP | <<locked>> | 94% | 55,927 psi | 88% | 3271 fps | 99.8% |
| Ramshot Big Game | <<locked>> | 84% | 54,157 psi | 85% | 3215 fps | 100% |
| Ramshot Hunter | <<locked>> | 94% | 54,926 psi | 86% | 3264 fps | 98.9% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 36,753 psi | 58% | 2087 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 86% | 55,201 psi | 87% | 3196 fps | 98.7% |
| ReloadSwiss RS 52 | <<locked>> | 82% | 55,071 psi | 86% | 3281 fps | 99.9% |
| ReloadSwiss RS 60 | <<locked>> | 88% | 55,071 psi | 86% | 3317 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 94% | 57,377 psi | 90% | 3310 fps | 99.8% |
| ReloadSwiss RS 70 | <<locked>> | 94% | 55,912 psi | 88% | 3337 fps | 99.7% |
| Rottweil R 902 | <<locked>> | 84% | 54,955 psi | 86% | 3156 fps | 100% |
| Rottweil R 903 | <<locked>> | 88% | 54,752 psi | 86% | 3196 fps | 100% |
| Rottweil R 904 | <<locked>> | 98% | 56,434 psi | 88% | 3232 fps | 95.9% |
| Rottweil R 905ᴾ | <<locked>> | 100% | 56,898 psi | 89% | 3297 fps | 97.4% |
| Rottweil R 907 | <<locked>> | 90% | 54,244 psi | 85% | 3173 fps | 97.6% |
| Shooters World Long Rifle | <<locked>> | 92% | 55,970 psi | 88% | 3202 fps | 99.2% |
| Shooters World Match Rifle | <<locked>> | 82% | 55,811 psi | 87% | 3182 fps | 100% |
| Shooters World Precision | <<locked>> | 86% | 56,434 psi | 88% | 3196 fps | 100% |
| Shooters World SW4350 | <<locked>> | 94% | 57,334 psi | 90% | 3245 fps | 98.7% |
| SNPE Vectan SP 11 | <<locked>> | 88% | 56,434 psi | 88% | 3258 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 82% | 56,956 psi | 89% | 3215 fps | 99.7% |
| SNPE Vectan SP 9 | <<locked>> | 84% | 57,580 psi | 90% | 3235 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 82% | 55,172 psi | 86% | 3087 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 88% | 55,883 psi | 88% | 3081 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 92% | 55,811 psi | 87% | 3146 fps | 98.4% |
| SNPE Vectan Tubal 8000ᴾ | <<locked>> | 100% | 56,391 psi | 88% | 3291 fps | 97.3% |
| Somchem S335 | <<locked>> | 82% | 54,737 psi | 86% | 3077 fps | 100% |
| Somchem S341 | <<locked>> | 82% | 56,637 psi | 89% | 3202 fps | 100% |
| Somchem S355 | <<locked>> | 88% | 54,926 psi | 86% | 3192 fps | 100% |
| Somchem S365 | <<locked>> | 96% | 54,926 psi | 86% | 3271 fps | 100% |
| Somchem S385ᴾ | <<locked>> | 100% | 57,696 psi | 90% | 3271 fps | 98.2% |
| Vihtavuori N133 | <<locked>> | 82% | 55,666 psi | 87% | 3068 fps | 100% |
| Vihtavuori N135 | <<locked>> | 84% | 55,100 psi | 86% | 3114 fps | 100% |
| Vihtavuori N140 | <<locked>> | 84% | 55,622 psi | 87% | 3130 fps | 100% |
| Vihtavuori N150 | <<locked>> | 90% | 56,173 psi | 88% | 3166 fps | 100% |
| Vihtavuori N160 | <<locked>> | 92% | 54,491 psi | 85% | 3205 fps | 99.7% |
| Vihtavuori N165ᴾ | <<locked>> | 100% | 49,676 psi | 78% | 3110 fps | 96.3% |
| Vihtavuori N540 | <<locked>> | 86% | 57,363 psi | 90% | 3176 fps | 100% |
| Vihtavuori N550 | <<locked>> | 94% | 57,276 psi | 90% | 3268 fps | 99.8% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 53,896 psi | 84% | 3268 fps | 99.9% |
| Winchester 6.5 StaBALL | <<locked>> | 92% | 54,375 psi | 85% | 3173 fps | 100% |
| Winchester 760 | <<locked>> | 92% | 56,188 psi | 88% | 3284 fps | 98.5% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 43,584 psi | 68% | 3222 fps | 100% |
| Winchester StaBALL Match | <<locked>> | 82% | 54,085 psi | 85% | 3186 fps | 100% |
| Winchester Supreme 780ᴾ | <<locked>> | 100% | 54,099 psi | 85% | 3196 fps | 96.6% |
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% | 49,342 psi | 77% | 3022 fps | 100% |
| Accurate 2700 | <<locked>> | 80% | 47,297 psi | 74% | 2999 fps | 95.8% |
| Accurate 3100 | <<locked>> | 92% | 38,957 psi | 61% | 2900 fps | 95.4% |
| Accurate 4064 | <<locked>> | 80% | 46,673 psi | 73% | 3022 fps | 100% |
| Accurate 4350 | <<locked>> | 80% | 35,201 psi | 55% | 2838 fps | 95.9% |
| ADI AR 2206H | <<locked>> | 80% | 52,098 psi | 82% | 3153 fps | 99.9% |
| ADI AR 2208 | <<locked>> | 80% | 44,121 psi | 69% | 2982 fps | 98.8% |
| ADI AR 2209 | <<locked>> | 96% | 51,169 psi | 80% | 3196 fps | 95.8% |
| ADI Benchmark 8208 | <<locked>> | 80% | 54,143 psi | 85% | 3156 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 48,443 psi | 76% | 3205 fps | 99.5% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 44,599 psi | 70% | 3012 fps | 99.7% |
| Alliant Reloder-15 | <<locked>> | 80% | 47,659 psi | 75% | 3087 fps | 99.4% |
| Alliant Reloder-16 | <<locked>> | 80% | 34,519 psi | 54% | 2844 fps | 95.8% |
| Alliant Reloder-17 | 58.8 gr | 80% | 39,030 psi | 61% | 2989 fps | 98.9% |
| Alliant Reloder-19 | <<locked>> | 94% | 47,413 psi | 74% | 3117 fps | 95% |
| Alliant Reloder-22 | <<locked>> | 98% | 47,906 psi | 75% | 3173 fps | 95.3% |
| Alliant Reloder-23 | <<locked>> | 86% | 30,647 psi | 48% | 2746 fps | 95.8% |
| Alliant Reloder-25 | <<locked>> | 96% | 36,985 psi | 58% | 2936 fps | 95.1% |
| Alliant Reloder-26 | <<locked>> | 88% | 35,636 psi | 56% | 2946 fps | 95.5% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 52,011 psi | 82% | 3163 fps | 99.6% |
| Bofors RP3 | <<locked>> | 80% | 44,744 psi | 70% | 3018 fps | 99.8% |
| Bofors RP5 | <<locked>> | 98% | 47,906 psi | 75% | 3173 fps | 95.3% |
| Bofors RP7 | <<locked>> | 84% | 44,947 psi | 70% | 2989 fps | 95.4% |
| Hodgdon H380 | <<locked>> | 80% | 45,223 psi | 71% | 3025 fps | 98.2% |
| Hodgdon H414 | 60.4 gr | 84% | 42,627 psi | 67% | 3018 fps | 95.4% |
| Hodgdon H4350 | <<locked>> | 86% | 48,878 psi | 77% | 3107 fps | 95.7% |
| Hodgdon H4895 | <<locked>> | 80% | 52,678 psi | 83% | 3166 fps | 100% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 32,111 psi | 50% | 2736 fps | 96.7% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 49,269 psi | 77% | 3136 fps | 100% |
| Hodgdon Superformance | <<locked>> | 86% | 45,107 psi | 71% | 3100 fps | 95.7% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,948 psi | 42% | 1827 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 50,314 psi | 79% | 3107 fps | 99.9% |
| IMR 3031 | <<locked>> | 80% | 53,084 psi | 83% | 3150 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 46,383 psi | 73% | 3022 fps | 99.3% |
| IMR 4166 Enduron | <<locked>> | 80% | 48,747 psi | 76% | 3048 fps | 97% |
| IMR 4350 | <<locked>> | 88% | 45,730 psi | 72% | 3025 fps | 95.7% |
| IMR 4451 Enduron | <<locked>> | 82% | 43,627 psi | 68% | 2963 fps | 95.6% |
| IMR 4831 | <<locked>> | 80% | 33,910 psi | 53% | 2785 fps | 95.4% |
| IMR 4895 | <<locked>> | 80% | 48,878 psi | 77% | 3117 fps | 99.8% |
| IMR 8208 XBR | <<locked>> | 80% | 54,143 psi | 85% | 3156 fps | 100% |
| Lovex D073.6 | <<locked>> | 80% | 52,243 psi | 82% | 3127 fps | 100% |
| Lovex S060 | <<locked>> | 80% | 51,256 psi | 80% | 3077 fps | 99.9% |
| Lovex S062 | <<locked>> | 80% | 46,760 psi | 73% | 3028 fps | 99.9% |
| Lovex S065 | <<locked>> | 80% | 38,566 psi | 60% | 2848 fps | 95.6% |
| Lovex S070 | <<locked>> | 84% | 41,858 psi | 66% | 2943 fps | 95.4% |
| Lovex S071 | <<locked>> | 98% | 39,943 psi | 63% | 2923 fps | 95.7% |
| Norma 201 | <<locked>> | 80% | 50,995 psi | 80% | 3097 fps | 100% |
| Norma 202 | <<locked>> | 80% | 51,561 psi | 81% | 3097 fps | 100% |
| Norma 203B | <<locked>> | 80% | 47,021 psi | 74% | 3071 fps | 99.6% |
| Norma 204 | <<locked>> | 90% | 48,950 psi | 77% | 3127 fps | 95.1% |
| Norma MRP | <<locked>> | 94% | 44,121 psi | 69% | 3123 fps | 95.7% |
| Norma URP | <<locked>> | 80% | 35,157 psi | 55% | 2835 fps | 95.7% |
| Ramshot Big Game | <<locked>> | 80% | 47,137 psi | 74% | 3087 fps | 99.5% |
| Ramshot Hunter | <<locked>> | 84% | 39,088 psi | 61% | 2940 fps | 95.2% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,456 psi | 43% | 1870 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 45,237 psi | 71% | 3005 fps | 96.8% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 51,242 psi | 80% | 3212 fps | 99.7% |
| ReloadSwiss RS 60 | 58.8 gr | 80% | 41,495 psi | 65% | 3061 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 34,983 psi | 55% | 2851 fps | 95.4% |
| ReloadSwiss RS 70 | <<locked>> | 82% | 36,651 psi | 57% | 2917 fps | 95.4% |
| Rottweil R 902 | <<locked>> | 80% | 48,559 psi | 76% | 3041 fps | 100% |
| Rottweil R 903 | <<locked>> | 80% | 42,134 psi | 66% | 2959 fps | 99.3% |
| Rottweil R 904 | <<locked>> | 96% | 53,098 psi | 83% | 3173 fps | 95.1% |
| Rottweil R 905 | <<locked>> | 96% | 49,661 psi | 78% | 3166 fps | 95.8% |
| Rottweil R 907 | <<locked>> | 84% | 44,947 psi | 70% | 2989 fps | 95.4% |
| Shooters World Long Rifle | <<locked>> | 80% | 38,566 psi | 60% | 2848 fps | 95.6% |
| Shooters World Match Rifle | <<locked>> | 80% | 52,243 psi | 82% | 3127 fps | 100% |
| Shooters World Precision | <<locked>> | 80% | 46,760 psi | 73% | 3028 fps | 99.9% |
| Shooters World SW4350 | <<locked>> | 84% | 41,858 psi | 66% | 2943 fps | 95.4% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 43,149 psi | 68% | 3012 fps | 99% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 53,171 psi | 83% | 3150 fps | 99.3% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 50,560 psi | 79% | 3117 fps | 99.8% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 51,648 psi | 81% | 3031 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 43,540 psi | 68% | 2877 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 84% | 42,989 psi | 67% | 2904 fps | 95.6% |
| SNPE Vectan Tubal 8000 | <<locked>> | 96% | 49,211 psi | 77% | 3156 fps | 95.6% |
| Somchem S335 | <<locked>> | 80% | 51,619 psi | 81% | 3028 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 52,881 psi | 83% | 3140 fps | 99.9% |
| Somchem S355 | <<locked>> | 80% | 42,569 psi | 67% | 2959 fps | 99.3% |
| Somchem S365 | <<locked>> | 80% | 31,676 psi | 50% | 2782 fps | 97.9% |
| Somchem S385 | <<locked>> | 92% | 44,121 psi | 69% | 3015 fps | 95.2% |
| Vihtavuori N133 | <<locked>> | 80% | 52,156 psi | 82% | 3015 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 48,443 psi | 76% | 3012 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 48,892 psi | 77% | 3022 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 40,625 psi | 64% | 2887 fps | 99.7% |
| Vihtavuori N160 | <<locked>> | 80% | 36,535 psi | 57% | 2838 fps | 96.2% |
| Vihtavuori N165 | <<locked>> | 98% | 46,456 psi | 73% | 3048 fps | 95.4% |
| Vihtavuori N540 | <<locked>> | 80% | 47,253 psi | 74% | 3009 fps | 100% |
| Vihtavuori N550 | <<locked>> | 80% | 36,056 psi | 56% | 2835 fps | 95.8% |
| Vihtavuori N555 | <<locked>> | 86% | 33,736 psi | 53% | 2835 fps | 96% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 36,042 psi | 56% | 2808 fps | 98.3% |
| Winchester 760 | <<locked>> | 84% | 42,844 psi | 67% | 3022 fps | 95.5% |
| Winchester StaBALL HD | <<locked>> | 88% | 29,022 psi | 45% | 2772 fps | 95.6% |
| Winchester StaBALL Match | <<locked>> | 80% | 50,488 psi | 79% | 3123 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 98% | 50,502 psi | 79% | 3133 fps | 95.7% |
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 95 powders for 7 mm WSM loaded with the .284 | 120gr | Prvi Partizan HP. Alliant Reloder-26 delivers the highest muzzle velocity at 3,392 fps; across all powders the maximum-charge window runs from 2,037 fps to 3,392 fps. Accurate 3100 gives the best case fill at 100 %, and 95 of the 95 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 120.0 gr projectile in 0.284" calls for a 1:13.0 twist; slower twists will usually not stabilise this weight. Accurate 3100, Alliant Reloder-19, Alliant Reloder-22 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-17, ReloadSwiss RS 60, Hodgdon H414 rank at the top here: for 7 mm WSM with the .284 | 120gr | Prvi Partizan HP 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.