Load Specifications
Load data in caliber 7 mm Weath. Mag. with .284 | 120gr | Barnes Solid bullet and 89 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are ReloadSwiss RS 70, Alliant Reloder-26 and Hodgdon Superformance.
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>> | 82% | 54,839 psi | 86% | 3114 fps | 100% |
| Accurate 2700 | <<locked>> | 84% | 56,057 psi | 88% | 3173 fps | 97.9% |
| Accurate 3100ᴾ | <<locked>> | 100% | 54,143 psi | 85% | 3209 fps | 99% |
| Accurate 4064 | <<locked>> | 84% | 55,187 psi | 86% | 3169 fps | 100% |
| Accurate 4350 | <<locked>> | 92% | 56,217 psi | 88% | 3278 fps | 99.9% |
| ADI AR 2206H | <<locked>> | 82% | 57,595 psi | 90% | 3255 fps | 100% |
| ADI AR 2208 | <<locked>> | 86% | 55,376 psi | 87% | 3202 fps | 100% |
| ADI AR 2209 | <<locked>> | 98% | 57,305 psi | 90% | 3317 fps | 97.5% |
| Alliant Power Pro 2000-MR | <<locked>> | 82% | 54,549 psi | 85% | 3327 fps | 100% |
| Alliant Power Pro Varmint | <<locked>> | 98% | 57,406 psi | 90% | 3310 fps | 97.5% |
| Alliant Reloder- TS 15.5 | <<locked>> | 86% | 56,115 psi | 88% | 3228 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 84% | 56,217 psi | 88% | 3248 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 94% | 56,913 psi | 89% | 3340 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 88% | 54,462 psi | 85% | 3304 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 98% | 56,594 psi | 89% | 3301 fps | 97.4% |
| Alliant Reloder-22ᴾ | <<locked>> | 100% | 53,853 psi | 84% | 3294 fps | 97% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 50,734 psi | 80% | 3228 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 44,222 psi | 69% | 3130 fps | 98% |
| Alliant Reloder-26 | <<locked>> | 98% | 54,940 psi | 86% | 3379 fps | 99.9% |
| Baschieri & Pellagri 107 | <<locked>> | 82% | 57,667 psi | 90% | 3268 fps | 100% |
| Bofors RP3 | <<locked>> | 86% | 57,116 psi | 90% | 3245 fps | 100% |
| Bofors RP5ᴾ | <<locked>> | 100% | 53,853 psi | 84% | 3294 fps | 97% |
| Bofors RP7 | <<locked>> | 90% | 56,391 psi | 88% | 3219 fps | 98.2% |
| Hodgdon H380 | <<locked>> | 86% | 57,595 psi | 90% | 3261 fps | 99.8% |
| Hodgdon H414 | <<locked>> | 90% | 54,578 psi | 86% | 3264 fps | 98.4% |
| Hodgdon H4350 | <<locked>> | 88% | 54,462 psi | 85% | 3225 fps | 97.2% |
| Hodgdon Hybrid 100V | <<locked>> | 96% | 57,130 psi | 90% | 3251 fps | 100% |
| Hodgdon LEVERevolution | <<locked>> | 82% | 54,868 psi | 86% | 3241 fps | 100% |
| Hodgdon Superformance | <<locked>> | 90% | 55,100 psi | 86% | 3301 fps | 98.3% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,201 psi | 57% | 2057 fps | 100% |
| Hodgdon VARGET | <<locked>> | 82% | 55,666 psi | 87% | 3209 fps | 100% |
| IMR 4064 | <<locked>> | 84% | 54,607 psi | 86% | 3182 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 84% | 57,305 psi | 90% | 3215 fps | 98.7% |
| IMR 4350 | <<locked>> | 94% | 57,522 psi | 90% | 3255 fps | 98.4% |
| IMR 4451 Enduron | <<locked>> | 88% | 54,578 psi | 86% | 3192 fps | 98.3% |
| IMR 4831 | <<locked>> | 94% | 56,565 psi | 89% | 3264 fps | 99.9% |
| IMR 4895 | <<locked>> | 84% | 57,653 psi | 90% | 3281 fps | 100% |
| Lovex S060 | <<locked>> | 82% | 56,057 psi | 88% | 3169 fps | 100% |
| Lovex S062 | <<locked>> | 84% | 55,013 psi | 86% | 3179 fps | 100% |
| Lovex S065 | <<locked>> | 90% | 54,737 psi | 86% | 3189 fps | 99.2% |
| Lovex S070 | <<locked>> | 92% | 56,188 psi | 88% | 3235 fps | 98.7% |
| Lovex S071ᴾ | <<locked>> | 100% | 45,005 psi | 71% | 3038 fps | 97.3% |
| Norma 201 | <<locked>> | 82% | 56,231 psi | 88% | 3192 fps | 100% |
| Norma 202 | <<locked>> | 82% | 56,913 psi | 89% | 3189 fps | 100% |
| Norma 203B | <<locked>> | 84% | 55,506 psi | 87% | 3232 fps | 100% |
| Norma 204 | <<locked>> | 92% | 54,752 psi | 86% | 3245 fps | 96.8% |
| Norma MRPᴾ | <<locked>> | 100% | 57,508 psi | 90% | 3392 fps | 98.9% |
| Norma URP | <<locked>> | 92% | 54,897 psi | 86% | 3258 fps | 99.8% |
| Ramshot Big Game | <<locked>> | 84% | 56,463 psi | 88% | 3258 fps | 100% |
| Ramshot Hunter | <<locked>> | 94% | 57,435 psi | 90% | 3314 fps | 99.3% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 36,883 psi | 58% | 2106 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 86% | 57,334 psi | 90% | 3238 fps | 99.1% |
| ReloadSwiss RS 52 | <<locked>> | 82% | 57,348 psi | 90% | 3323 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 86% | 53,925 psi | 85% | 3301 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 92% | 56,115 psi | 88% | 3297 fps | 99.8% |
| ReloadSwiss RS 70 | <<locked>> | 92% | 54,723 psi | 86% | 3327 fps | 99.7% |
| Rottweil R 902 | <<locked>> | 84% | 56,768 psi | 89% | 3192 fps | 100% |
| Rottweil R 903 | <<locked>> | 88% | 57,261 psi | 90% | 3241 fps | 100% |
| Rottweil R 904 | <<locked>> | 96% | 55,259 psi | 87% | 3222 fps | 95.9% |
| Rottweil R 905 | <<locked>> | 98% | 55,695 psi | 87% | 3281 fps | 97.4% |
| Rottweil R 907 | <<locked>> | 90% | 56,391 psi | 88% | 3219 fps | 98.2% |
| Shooters World Long Rifle | <<locked>> | 90% | 54,737 psi | 86% | 3189 fps | 99.2% |
| Shooters World Precision | <<locked>> | 84% | 55,013 psi | 86% | 3179 fps | 100% |
| Shooters World SW4350 | <<locked>> | 92% | 56,188 psi | 88% | 3235 fps | 98.7% |
| SNPE Vectan SP 11 | <<locked>> | 86% | 55,013 psi | 86% | 3241 fps | 100% |
| SNPE Vectan SP 9 | <<locked>> | 82% | 55,956 psi | 88% | 3219 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 82% | 56,840 psi | 89% | 3120 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 86% | 54,549 psi | 85% | 3068 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 90% | 54,462 psi | 85% | 3136 fps | 98.4% |
| SNPE Vectan Tubal 8000 | <<locked>> | 98% | 55,216 psi | 87% | 3274 fps | 97.3% |
| Somchem S335 | <<locked>> | 82% | 56,739 psi | 89% | 3117 fps | 100% |
| Somchem S355 | <<locked>> | 88% | 57,087 psi | 89% | 3235 fps | 100% |
| Somchem S365 | <<locked>> | 94% | 54,201 psi | 85% | 3261 fps | 100% |
| Somchem S385 | <<locked>> | 98% | 56,666 psi | 89% | 3261 fps | 98.3% |
| Vihtavuori N133 | <<locked>> | 82% | 57,363 psi | 90% | 3100 fps | 100% |
| Vihtavuori N135 | <<locked>> | 84% | 57,203 psi | 90% | 3150 fps | 100% |
| Vihtavuori N140 | <<locked>> | 84% | 57,653 psi | 90% | 3166 fps | 100% |
| Vihtavuori N150 | <<locked>> | 88% | 54,940 psi | 86% | 3153 fps | 100% |
| Vihtavuori N160 | <<locked>> | 92% | 56,985 psi | 89% | 3255 fps | 99.9% |
| Vihtavuori N165ᴾ | <<locked>> | 100% | 52,127 psi | 82% | 3163 fps | 97.1% |
| Vihtavuori N540 | <<locked>> | 84% | 55,898 psi | 88% | 3159 fps | 100% |
| Vihtavuori N550 | <<locked>> | 92% | 55,999 psi | 88% | 3255 fps | 99.8% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 56,884 psi | 89% | 3320 fps | 100% |
| Vihtavuori N560ᴾ | <<locked>> | 100% | 57,711 psi | 90% | 3379 fps | 96% |
| Winchester 6.5 StaBALL | <<locked>> | 92% | 56,898 psi | 89% | 3215 fps | 100% |
| Winchester 760 | <<locked>> | 90% | 54,839 psi | 86% | 3268 fps | 98.5% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 46,064 psi | 72% | 3284 fps | 100% |
| Winchester StaBALL Match | <<locked>> | 82% | 56,188 psi | 88% | 3225 fps | 100% |
| Winchester Supreme 780ᴾ | <<locked>> | 100% | 56,869 psi | 89% | 3251 fps | 97.4% |
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% | 51,198 psi | 80% | 3058 fps | 100% |
| Accurate 2700 | <<locked>> | 80% | 49,197 psi | 77% | 3048 fps | 96.6% |
| Accurate 3100 | <<locked>> | 90% | 38,305 psi | 60% | 2890 fps | 95.3% |
| Accurate 4064 | <<locked>> | 80% | 48,472 psi | 76% | 3058 fps | 100% |
| Accurate 4350 | <<locked>> | 80% | 36,927 psi | 58% | 2884 fps | 96.6% |
| ADI AR 2206H | <<locked>> | 80% | 53,954 psi | 85% | 3196 fps | 100% |
| ADI AR 2208 | <<locked>> | 80% | 45,861 psi | 72% | 3025 fps | 99.2% |
| ADI AR 2209 | <<locked>> | 94% | 50,198 psi | 79% | 3186 fps | 95.9% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 50,647 psi | 79% | 3258 fps | 99.8% |
| Alliant Power Pro Varmint | <<locked>> | 92% | 47,079 psi | 74% | 3117 fps | 95.1% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 46,412 psi | 73% | 3054 fps | 99.9% |
| Alliant Reloder-15 | <<locked>> | 80% | 49,458 psi | 78% | 3130 fps | 99.7% |
| Alliant Reloder-16 | <<locked>> | 80% | 36,071 psi | 57% | 2894 fps | 96.6% |
| Alliant Reloder-17 | <<locked>> | 80% | 40,973 psi | 64% | 3038 fps | 99.3% |
| Alliant Reloder-19 | <<locked>> | 94% | 49,516 psi | 78% | 3169 fps | 95.8% |
| Alliant Reloder-22 | <<locked>> | 96% | 47,094 psi | 74% | 3163 fps | 95.3% |
| Alliant Reloder-23 | <<locked>> | 84% | 30,081 psi | 47% | 2733 fps | 95.7% |
| Alliant Reloder-25 | <<locked>> | 94% | 36,506 psi | 57% | 2930 fps | 95.1% |
| Alliant Reloder-26 | 67.6 gr | 86% | 34,998 psi | 55% | 2930 fps | 95.4% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 54,056 psi | 85% | 3209 fps | 99.8% |
| Bofors RP3 | <<locked>> | 80% | 46,601 psi | 73% | 3061 fps | 99.9% |
| Bofors RP5 | <<locked>> | 96% | 47,094 psi | 74% | 3163 fps | 95.3% |
| Bofors RP7 | <<locked>> | 82% | 43,830 psi | 69% | 2972 fps | 95.3% |
| Hodgdon H380 | <<locked>> | 80% | 47,094 psi | 74% | 3071 fps | 98.7% |
| Hodgdon H414 | <<locked>> | 82% | 41,626 psi | 65% | 2999 fps | 95.3% |
| Hodgdon H4350 | <<locked>> | 84% | 47,747 psi | 75% | 3094 fps | 95.7% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 33,562 psi | 53% | 2779 fps | 97.4% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 51,314 psi | 80% | 3179 fps | 100% |
| Hodgdon Superformance | 68.1 gr | 84% | 44,034 psi | 69% | 3081 fps | 95.6% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,050 psi | 42% | 1844 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 52,141 psi | 82% | 3150 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 48,182 psi | 76% | 3064 fps | 99.6% |
| IMR 4166 Enduron | <<locked>> | 80% | 50,560 psi | 79% | 3094 fps | 97.6% |
| IMR 4350 | <<locked>> | 86% | 44,686 psi | 70% | 3009 fps | 95.6% |
| IMR 4451 Enduron | <<locked>> | 80% | 42,453 psi | 67% | 2943 fps | 95.4% |
| IMR 4831 | <<locked>> | 80% | 35,520 psi | 56% | 2831 fps | 96.3% |
| IMR 4895 | <<locked>> | 80% | 50,734 psi | 80% | 3159 fps | 99.9% |
| Lovex S060 | <<locked>> | 80% | 52,765 psi | 83% | 3114 fps | 100% |
| Lovex S062 | <<locked>> | 80% | 48,385 psi | 76% | 3064 fps | 100% |
| Lovex S065 | <<locked>> | 80% | 39,943 psi | 63% | 2887 fps | 96.2% |
| Lovex S070 | <<locked>> | 82% | 40,756 psi | 64% | 2923 fps | 95.2% |
| Lovex S071 | <<locked>> | 96% | 39,421 psi | 62% | 2917 fps | 95.7% |
| Norma 201 | <<locked>> | 80% | 52,663 psi | 83% | 3133 fps | 100% |
| Norma 202 | <<locked>> | 80% | 53,519 psi | 84% | 3136 fps | 100% |
| Norma 203B | <<locked>> | 80% | 48,805 psi | 76% | 3114 fps | 99.8% |
| Norma 204 | <<locked>> | 88% | 47,790 psi | 75% | 3114 fps | 95.1% |
| Norma MRP | <<locked>> | 92% | 43,236 psi | 68% | 3110 fps | 95.7% |
| Norma URP | <<locked>> | 80% | 36,825 psi | 58% | 2881 fps | 96.5% |
| Ramshot Big Game | <<locked>> | 80% | 49,211 psi | 77% | 3133 fps | 99.8% |
| Ramshot Hunter | <<locked>> | 82% | 38,189 psi | 60% | 2920 fps | 95.1% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,557 psi | 43% | 1886 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 47,166 psi | 74% | 3051 fps | 97.4% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 53,519 psi | 84% | 3258 fps | 99.9% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 43,555 psi | 68% | 3107 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 36,738 psi | 58% | 2897 fps | 96.2% |
| ReloadSwiss RS 70 | 62.3 gr | 80% | 35,766 psi | 56% | 2897 fps | 95.2% |
| Rottweil R 902 | <<locked>> | 80% | 50,212 psi | 79% | 3081 fps | 100% |
| Rottweil R 903 | <<locked>> | 80% | 43,961 psi | 69% | 3002 fps | 99.6% |
| Rottweil R 904 | <<locked>> | 94% | 51,851 psi | 81% | 3156 fps | 95% |
| Rottweil R 905 | <<locked>> | 94% | 48,689 psi | 76% | 3150 fps | 95.8% |
| Rottweil R 907 | <<locked>> | 82% | 43,830 psi | 69% | 2972 fps | 95.3% |
| Shooters World Long Rifle | <<locked>> | 80% | 39,943 psi | 63% | 2887 fps | 96.2% |
| Shooters World Precision | <<locked>> | 80% | 48,385 psi | 76% | 3064 fps | 100% |
| Shooters World SW4350 | <<locked>> | 82% | 40,756 psi | 64% | 2923 fps | 95.2% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 45,020 psi | 71% | 3054 fps | 99.4% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 52,460 psi | 82% | 3159 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 53,388 psi | 84% | 3064 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 45,136 psi | 71% | 2913 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 82% | 41,843 psi | 66% | 2887 fps | 95.5% |
| SNPE Vectan Tubal 8000 | <<locked>> | 94% | 48,240 psi | 76% | 3146 fps | 95.6% |
| Somchem S335 | <<locked>> | 80% | 53,200 psi | 83% | 3061 fps | 100% |
| Somchem S355 | <<locked>> | 80% | 44,150 psi | 69% | 2999 fps | 99.6% |
| Somchem S365 | <<locked>> | 80% | 33,257 psi | 52% | 2828 fps | 98.5% |
| Somchem S385 | <<locked>> | 90% | 43,265 psi | 68% | 3002 fps | 95.1% |
| Vihtavuori N133 | <<locked>> | 80% | 53,925 psi | 85% | 3051 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 50,314 psi | 79% | 3045 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 50,734 psi | 80% | 3058 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 42,308 psi | 66% | 2927 fps | 99.9% |
| Vihtavuori N160 | <<locked>> | 80% | 38,189 psi | 60% | 2881 fps | 96.9% |
| Vihtavuori N165 | <<locked>> | 96% | 45,600 psi | 71% | 3038 fps | 95.4% |
| Vihtavuori N540 | <<locked>> | 80% | 49,081 psi | 77% | 3048 fps | 100% |
| Vihtavuori N550 | <<locked>> | 80% | 37,768 psi | 59% | 2881 fps | 96.6% |
| Vihtavuori N555 | <<locked>> | 84% | 33,214 psi | 52% | 2818 fps | 95.9% |
| Vihtavuori N560 | <<locked>> | 98% | 53,853 psi | 84% | 3307 fps | 95% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 37,565 psi | 59% | 2851 fps | 98.8% |
| Winchester 760 | <<locked>> | 82% | 41,843 psi | 66% | 3002 fps | 95.3% |
| Winchester StaBALL HD | <<locked>> | 86% | 28,456 psi | 45% | 2759 fps | 95.5% |
| Winchester StaBALL Match | <<locked>> | 80% | 52,620 psi | 82% | 3166 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 96% | 49,342 psi | 77% | 3117 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 89 powders for 7 mm Weath. Mag. loaded with the .284 | 120gr | Barnes Solid. Norma MRP delivers the highest muzzle velocity at 3,392 fps; across all powders the maximum-charge window runs from 2,057 fps to 3,392 fps. Accurate 3100 gives the best case fill at 100 %, and 89 of the 89 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 120.0 gr projectile in 0.284" calls for a 1:10.0 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. ReloadSwiss RS 70, Alliant Reloder-26, Hodgdon Superformance rank at the top here: for 7 mm Weath. Mag. with the .284 | 120gr | Barnes Solid 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.