Load Specifications
Load data in caliber 7 mm WSM with .284 | 120gr | Barnes TTSX BT bullet and 97 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are ReloadSwiss RS 60, Alliant Reloder-16 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 2015 | <<locked>> | 82% | 56,521 psi | 89% | 3104 fps | 100% |
| Accurate 2495 | <<locked>> | 86% | 55,898 psi | 88% | 3127 fps | 100% |
| Accurate 2700 | <<locked>> | 86% | 54,824 psi | 86% | 3133 fps | 97.3% |
| Accurate 3100ᴾ | <<locked>> | 100% | 47,384 psi | 74% | 3081 fps | 97.5% |
| Accurate 4064 | <<locked>> | 88% | 56,173 psi | 88% | 3182 fps | 100% |
| Accurate 4350 | <<locked>> | 96% | 57,203 psi | 90% | 3284 fps | 99.8% |
| ADI AR 2206H | <<locked>> | 84% | 56,115 psi | 88% | 3219 fps | 100% |
| ADI AR 2208 | <<locked>> | 90% | 57,493 psi | 90% | 3222 fps | 99.9% |
| ADI AR 2209ᴾ | <<locked>> | 100% | 55,288 psi | 87% | 3264 fps | 96.5% |
| ADI Benchmark 8208 | <<locked>> | 82% | 55,027 psi | 86% | 3166 fps | 100% |
| Alliant AR-Comp | <<locked>> | 82% | 56,202 psi | 88% | 3133 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 86% | 56,826 psi | 89% | 3360 fps | 100% |
| Alliant Reloder- TS 15.5 | <<locked>> | 88% | 54,186 psi | 85% | 3189 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 86% | 54,723 psi | 86% | 3212 fps | 99.9% |
| Alliant Reloder-16 | <<locked>> | 96% | 54,462 psi | 85% | 3291 fps | 99.9% |
| Alliant Reloder-17 | <<locked>> | 92% | 56,072 psi | 88% | 3327 fps | 100% |
| Alliant Reloder-19ᴾ | <<locked>> | 100% | 54,099 psi | 85% | 3245 fps | 96.4% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 44,875 psi | 70% | 3114 fps | 99.7% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 51,329 psi | 80% | 3314 fps | 99.5% |
| Baschieri & Pellagri 107 | <<locked>> | 84% | 56,246 psi | 88% | 3232 fps | 99.8% |
| Bofors RP3 | <<locked>> | 88% | 55,042 psi | 86% | 3205 fps | 100% |
| Bofors RP7 | <<locked>> | 92% | 54,853 psi | 86% | 3176 fps | 97.5% |
| Hodgdon Benchmark | <<locked>> | 82% | 56,260 psi | 88% | 3143 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 82% | 54,781 psi | 86% | 3192 fps | 100% |
| Hodgdon H380 | <<locked>> | 88% | 55,680 psi | 87% | 3219 fps | 99.5% |
| Hodgdon H414 | <<locked>> | 94% | 56,115 psi | 88% | 3281 fps | 98.3% |
| Hodgdon H4350 | <<locked>> | 92% | 56,289 psi | 88% | 3241 fps | 97.1% |
| Hodgdon H4895 | <<locked>> | 84% | 56,710 psi | 89% | 3232 fps | 100% |
| Hodgdon Hybrid 100V | <<locked>> | 98% | 54,621 psi | 86% | 3205 fps | 100% |
| Hodgdon LEVERevolution | <<locked>> | 86% | 57,130 psi | 90% | 3271 fps | 100% |
| Hodgdon Superformance | <<locked>> | 94% | 56,942 psi | 89% | 3323 fps | 98.2% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,694 psi | 56% | 2021 fps | 100% |
| Hodgdon VARGET | <<locked>> | 84% | 54,389 psi | 85% | 3176 fps | 100% |
| IMR 3031 | <<locked>> | 84% | 57,203 psi | 90% | 3212 fps | 100% |
| IMR 4064 | <<locked>> | 88% | 56,898 psi | 89% | 3205 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 86% | 56,318 psi | 88% | 3179 fps | 98.2% |
| IMR 4350 | <<locked>> | 96% | 55,709 psi | 87% | 3209 fps | 97.7% |
| IMR 4451 Enduron | <<locked>> | 92% | 56,753 psi | 89% | 3212 fps | 98.2% |
| IMR 4831 | <<locked>> | 96% | 54,041 psi | 85% | 3215 fps | 99.7% |
| IMR 4895 | <<locked>> | 86% | 56,173 psi | 88% | 3248 fps | 100% |
| IMR 8208 XBR | <<locked>> | 82% | 55,027 psi | 86% | 3166 fps | 100% |
| Lovex D073.6 | <<locked>> | 84% | 56,188 psi | 88% | 3189 fps | 100% |
| Lovex S060 | <<locked>> | 84% | 55,347 psi | 87% | 3143 fps | 100% |
| Lovex S062 | <<locked>> | 88% | 56,695 psi | 89% | 3199 fps | 100% |
| Lovex S065 | <<locked>> | 94% | 56,318 psi | 88% | 3202 fps | 99.1% |
| Lovex S070 | <<locked>> | 96% | 57,479 psi | 90% | 3245 fps | 98.6% |
| Norma 201 | <<locked>> | 84% | 54,723 psi | 86% | 3159 fps | 100% |
| Norma 202 | <<locked>> | 84% | 55,492 psi | 87% | 3163 fps | 100% |
| Norma 203B | <<locked>> | 88% | 57,464 psi | 90% | 3255 fps | 100% |
| Norma 204 | <<locked>> | 96% | 56,739 psi | 89% | 3264 fps | 96.7% |
| Norma MRPᴾ | <<locked>> | 100% | 50,647 psi | 79% | 3261 fps | 97.3% |
| Norma URP | <<locked>> | 96% | 56,014 psi | 88% | 3268 fps | 99.7% |
| Ramshot Big Game | <<locked>> | 86% | 54,853 psi | 86% | 3225 fps | 100% |
| Ramshot Hunter | <<locked>> | 96% | 55,172 psi | 86% | 3268 fps | 98.8% |
| Ramshot TAC | <<locked>> | 82% | 55,201 psi | 87% | 3182 fps | 99.1% |
| Ramshot Wild Boar | <<locked>> | 82% | 55,216 psi | 87% | 3202 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 36,332 psi | 57% | 2070 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 88% | 55,840 psi | 88% | 3202 fps | 98.6% |
| ReloadSwiss RS 52 | <<locked>> | 84% | 55,564 psi | 87% | 3287 fps | 99.9% |
| ReloadSwiss RS 60 | <<locked>> | 90% | 55,680 psi | 87% | 3327 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 96% | 57,232 psi | 90% | 3310 fps | 99.8% |
| ReloadSwiss RS 70 | <<locked>> | 96% | 56,434 psi | 88% | 3343 fps | 99.7% |
| Rottweil R 901 | <<locked>> | 82% | 55,317 psi | 87% | 3140 fps | 100% |
| Rottweil R 902 | <<locked>> | 86% | 55,332 psi | 87% | 3159 fps | 100% |
| Rottweil R 903 | <<locked>> | 90% | 54,911 psi | 86% | 3196 fps | 100% |
| Rottweil R 905ᴾ | <<locked>> | 100% | 53,084 psi | 83% | 3225 fps | 96.4% |
| Rottweil R 907 | <<locked>> | 92% | 54,853 psi | 86% | 3176 fps | 97.5% |
| Shooters World Long Rifle | <<locked>> | 94% | 56,318 psi | 88% | 3202 fps | 99.1% |
| Shooters World Match Rifle | <<locked>> | 84% | 56,188 psi | 88% | 3189 fps | 100% |
| Shooters World Precision | <<locked>> | 88% | 56,695 psi | 89% | 3199 fps | 100% |
| Shooters World SW4350 | <<locked>> | 96% | 57,479 psi | 90% | 3245 fps | 98.6% |
| SNPE Vectan SP 11 | <<locked>> | 90% | 57,101 psi | 89% | 3268 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 82% | 53,737 psi | 84% | 3156 fps | 99.3% |
| SNPE Vectan SP 9 | <<locked>> | 84% | 54,766 psi | 86% | 3189 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 84% | 55,840 psi | 88% | 3094 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 90% | 56,826 psi | 89% | 3091 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 94% | 56,391 psi | 88% | 3153 fps | 98.3% |
| SNPE Vectan Tubal 8000ᴾ | <<locked>> | 100% | 52,591 psi | 82% | 3219 fps | 96.2% |
| Somchem S335 | <<locked>> | 84% | 55,463 psi | 87% | 3087 fps | 100% |
| Somchem S341 | <<locked>> | 84% | 57,290 psi | 90% | 3209 fps | 100% |
| Somchem S355 | <<locked>> | 90% | 54,926 psi | 86% | 3192 fps | 100% |
| Somchem S365 | <<locked>> | 98% | 54,810 psi | 86% | 3271 fps | 100% |
| Somchem S385ᴾ | <<locked>> | 100% | 53,969 psi | 85% | 3205 fps | 97.4% |
| Vihtavuori N133 | <<locked>> | 84% | 56,318 psi | 88% | 3074 fps | 100% |
| Vihtavuori N135 | <<locked>> | 86% | 55,434 psi | 87% | 3120 fps | 100% |
| Vihtavuori N140 | <<locked>> | 86% | 56,057 psi | 88% | 3136 fps | 100% |
| Vihtavuori N150 | <<locked>> | 92% | 56,811 psi | 89% | 3176 fps | 100% |
| Vihtavuori N160 | <<locked>> | 94% | 54,839 psi | 86% | 3209 fps | 99.6% |
| Vihtavuori N530 | <<locked>> | 82% | 55,463 psi | 87% | 3166 fps | 100% |
| Vihtavuori N540 | <<locked>> | 86% | 54,259 psi | 85% | 3127 fps | 100% |
| Vihtavuori N550 | <<locked>> | 94% | 53,998 psi | 85% | 3212 fps | 99.5% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 49,922 psi | 78% | 3199 fps | 99.6% |
| Winchester 6.5 StaBALL | <<locked>> | 94% | 54,853 psi | 86% | 3176 fps | 100% |
| Winchester 748 | <<locked>> | 82% | 56,014 psi | 88% | 3215 fps | 100% |
| Winchester 760 | <<locked>> | 94% | 56,405 psi | 88% | 3284 fps | 98.4% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 40,364 psi | 63% | 3140 fps | 99.9% |
| Winchester StaBALL Match | <<locked>> | 84% | 54,752 psi | 86% | 3196 fps | 100% |
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 2015 | <<locked>> | 80% | 53,026 psi | 83% | 3051 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 45,643 psi | 72% | 2963 fps | 100% |
| Accurate 2700 | <<locked>> | 82% | 47,964 psi | 75% | 3009 fps | 95.8% |
| Accurate 3100 | <<locked>> | 96% | 41,046 psi | 64% | 2949 fps | 95.8% |
| Accurate 4064 | <<locked>> | 80% | 43,221 psi | 68% | 2963 fps | 100% |
| Accurate 4350 | <<locked>> | 82% | 34,795 psi | 55% | 2828 fps | 95.5% |
| ADI AR 2206H | <<locked>> | 80% | 49,313 psi | 77% | 3100 fps | 99.7% |
| ADI AR 2208 | <<locked>> | 80% | 41,814 psi | 66% | 2930 fps | 98.2% |
| ADI AR 2209 | <<locked>> | 98% | 51,547 psi | 81% | 3196 fps | 95.6% |
| ADI Benchmark 8208 | <<locked>> | 80% | 51,488 psi | 81% | 3107 fps | 100% |
| Alliant AR-Comp | <<locked>> | 80% | 52,562 psi | 82% | 3084 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 45,571 psi | 71% | 3143 fps | 99% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 41,814 psi | 66% | 2953 fps | 99.3% |
| Alliant Reloder-15 | <<locked>> | 80% | 44,875 psi | 70% | 3028 fps | 98.9% |
| Alliant Reloder-16 | 54.1 gr | 82% | 34,534 psi | 54% | 2844 fps | 95.5% |
| Alliant Reloder-17 | <<locked>> | 80% | 36,347 psi | 57% | 2920 fps | 98% |
| Alliant Reloder-19 | <<locked>> | 98% | 50,792 psi | 80% | 3182 fps | 95.6% |
| Alliant Reloder-23 | <<locked>> | 88% | 30,153 psi | 47% | 2733 fps | 95.3% |
| Alliant Reloder-26 | <<locked>> | 90% | 35,201 psi | 55% | 2936 fps | 95% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 49,052 psi | 77% | 3107 fps | 99.2% |
| Bofors RP3 | <<locked>> | 80% | 41,756 psi | 65% | 2959 fps | 99.3% |
| Bofors RP7 | <<locked>> | 86% | 45,179 psi | 71% | 2989 fps | 95.2% |
| Hodgdon Benchmark | <<locked>> | 80% | 52,953 psi | 83% | 3091 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 80% | 50,923 psi | 80% | 3130 fps | 100% |
| Hodgdon H380 | <<locked>> | 80% | 42,467 psi | 67% | 2966 fps | 97.4% |
| Hodgdon H414 | <<locked>> | 86% | 42,757 psi | 67% | 3018 fps | 95.2% |
| Hodgdon H4350 | <<locked>> | 88% | 49,472 psi | 78% | 3114 fps | 95.6% |
| Hodgdon H4895 | <<locked>> | 80% | 49,850 psi | 78% | 3114 fps | 99.9% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 29,660 psi | 46% | 2664 fps | 95.3% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 46,267 psi | 73% | 3081 fps | 99.8% |
| Hodgdon Superformance | <<locked>> | 88% | 45,527 psi | 71% | 3104 fps | 95.6% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,658 psi | 42% | 1811 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 47,747 psi | 75% | 3058 fps | 99.7% |
| IMR 3031 | <<locked>> | 80% | 50,082 psi | 78% | 3100 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 43,932 psi | 69% | 2969 fps | 98.8% |
| IMR 4166 Enduron | <<locked>> | 80% | 46,369 psi | 73% | 2995 fps | 96.2% |
| IMR 4350 | <<locked>> | 90% | 45,788 psi | 72% | 3022 fps | 95.5% |
| IMR 4451 Enduron | <<locked>> | 84% | 43,990 psi | 69% | 2966 fps | 95.4% |
| IMR 4831 | <<locked>> | 82% | 33,605 psi | 53% | 2779 fps | 95.1% |
| IMR 4895 | <<locked>> | 80% | 46,021 psi | 72% | 3061 fps | 99.4% |
| IMR 8208 XBR | <<locked>> | 80% | 51,488 psi | 81% | 3107 fps | 100% |
| Lovex D073.6 | <<locked>> | 80% | 48,892 psi | 77% | 3071 fps | 100% |
| Lovex S060 | <<locked>> | 80% | 48,704 psi | 76% | 3025 fps | 99.7% |
| Lovex S062 | <<locked>> | 80% | 43,888 psi | 69% | 2969 fps | 99.7% |
| Lovex S065 | <<locked>> | 82% | 38,377 psi | 60% | 2844 fps | 95.3% |
| Lovex S070 | <<locked>> | 86% | 41,640 psi | 65% | 2936 fps | 95.1% |
| Norma 201 | <<locked>> | 80% | 48,037 psi | 75% | 3041 fps | 100% |
| Norma 202 | <<locked>> | 80% | 48,660 psi | 76% | 3048 fps | 100% |
| Norma 203B | <<locked>> | 80% | 44,222 psi | 69% | 3012 fps | 99.1% |
| Norma 204 | <<locked>> | 94% | 52,881 psi | 83% | 3196 fps | 95.9% |
| Norma MRP | <<locked>> | 96% | 43,961 psi | 69% | 3120 fps | 95.4% |
| Norma URP | <<locked>> | 82% | 34,838 psi | 55% | 2828 fps | 95.3% |
| Ramshot Big Game | <<locked>> | 80% | 44,280 psi | 69% | 3028 fps | 99% |
| Ramshot Hunter | <<locked>> | 86% | 39,131 psi | 61% | 2940 fps | 95% |
| Ramshot TAC | <<locked>> | 80% | 51,474 psi | 81% | 3117 fps | 98.6% |
| Ramshot Wild Boar | <<locked>> | 80% | 51,416 psi | 81% | 3136 fps | 99.8% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 26,919 psi | 42% | 1850 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 42,786 psi | 67% | 2946 fps | 95.9% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 48,196 psi | 76% | 3153 fps | 99.3% |
| ReloadSwiss RS 60 | 56.8 gr | 80% | 38,740 psi | 61% | 2995 fps | 99.9% |
| ReloadSwiss RS 62 | <<locked>> | 82% | 34,592 psi | 54% | 2841 fps | 95% |
| ReloadSwiss RS 70 | 60.6 gr | 84% | 36,724 psi | 58% | 2917 fps | 95.1% |
| Rottweil R 901 | <<locked>> | 80% | 51,967 psi | 81% | 3084 fps | 100% |
| Rottweil R 902 | <<locked>> | 80% | 45,818 psi | 72% | 2989 fps | 99.8% |
| Rottweil R 903 | <<locked>> | 80% | 39,146 psi | 61% | 2894 fps | 98.7% |
| Rottweil R 905 | <<locked>> | 98% | 49,676 psi | 78% | 3163 fps | 95.5% |
| Rottweil R 907 | <<locked>> | 86% | 45,179 psi | 71% | 2989 fps | 95.2% |
| Shooters World Long Rifle | <<locked>> | 82% | 38,377 psi | 60% | 2844 fps | 95.3% |
| Shooters World Match Rifle | <<locked>> | 80% | 48,892 psi | 77% | 3071 fps | 100% |
| Shooters World Precision | <<locked>> | 80% | 43,888 psi | 69% | 2969 fps | 99.7% |
| Shooters World SW4350 | <<locked>> | 86% | 41,640 psi | 65% | 2936 fps | 95.1% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 40,524 psi | 64% | 2953 fps | 98.4% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 49,937 psi | 78% | 3087 fps | 98.8% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 47,950 psi | 75% | 3064 fps | 99.6% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 49,356 psi | 77% | 2989 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 41,365 psi | 65% | 2835 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 86% | 43,221 psi | 68% | 2907 fps | 95.4% |
| SNPE Vectan Tubal 8000 | <<locked>> | 98% | 49,226 psi | 77% | 3156 fps | 95.4% |
| Somchem S335 | <<locked>> | 80% | 48,863 psi | 77% | 2982 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 49,864 psi | 78% | 3084 fps | 99.7% |
| Somchem S355 | <<locked>> | 80% | 39,755 psi | 62% | 2897 fps | 98.7% |
| Somchem S365 | <<locked>> | 80% | 29,124 psi | 46% | 2707 fps | 96.6% |
| Somchem S385 | <<locked>> | 96% | 46,963 psi | 74% | 3074 fps | 95.8% |
| Vihtavuori N133 | <<locked>> | 80% | 49,879 psi | 78% | 2979 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 45,730 psi | 72% | 2966 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 46,151 psi | 72% | 2976 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 37,956 psi | 59% | 2825 fps | 99.3% |
| Vihtavuori N160 | <<locked>> | 82% | 36,521 psi | 57% | 2838 fps | 96% |
| Vihtavuori N530 | <<locked>> | 80% | 51,779 psi | 81% | 3104 fps | 100% |
| Vihtavuori N540 | <<locked>> | 80% | 44,614 psi | 70% | 2959 fps | 100% |
| Vihtavuori N550 | <<locked>> | 82% | 35,969 psi | 56% | 2835 fps | 95.5% |
| Vihtavuori N555 | <<locked>> | 88% | 33,112 psi | 52% | 2822 fps | 95.5% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 33,605 psi | 53% | 2743 fps | 97.3% |
| Winchester 748 | <<locked>> | 80% | 52,069 psi | 82% | 3156 fps | 100% |
| Winchester 760 | <<locked>> | 86% | 42,757 psi | 67% | 3018 fps | 95.2% |
| Winchester StaBALL HD | <<locked>> | 92% | 30,589 psi | 48% | 2831 fps | 96.4% |
| Winchester StaBALL Match | <<locked>> | 80% | 47,587 psi | 75% | 3068 fps | 99.8% |
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 116 powders for 7 mm WSM loaded with the .284 | 120gr | Barnes TTSX BT. Alliant Power Pro 2000-MR delivers the highest muzzle velocity at 3,360 fps; across all powders the maximum-charge window runs from 2,021 fps to 3,360 fps. Accurate 3100 gives the best case fill at 100 %, and 116 of the 116 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 1:11.0 twist; slower twists will usually not stabilise this weight. Accurate 3100, Accurate MAGPRO, ADI AR 2209 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. ReloadSwiss RS 60, Alliant Reloder-16, ReloadSwiss RS 70 rank at the top here: for 7 mm WSM with the .284 | 120gr | Barnes TTSX BT they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, Accurate MAGPRO, ADI AR 2213, Bofors RP15 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.