Load Specifications
Load data in caliber 7 mm Weath. Mag. with .284 | 110gr | Speer TNT bullet and 85 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% | 54,679 psi | 86% | 3238 fps | 100% |
| Accurate 2700 | <<locked>> | 84% | 55,956 psi | 88% | 3294 fps | 97.5% |
| Accurate 3100ᴾ | <<locked>> | 100% | 54,404 psi | 85% | 3330 fps | 98.7% |
| Accurate 4064 | <<locked>> | 84% | 55,100 psi | 86% | 3297 fps | 100% |
| Accurate 4350 | <<locked>> | 92% | 56,217 psi | 88% | 3396 fps | 99.7% |
| ADI AR 2206H | <<locked>> | 82% | 57,246 psi | 90% | 3379 fps | 100% |
| ADI AR 2208 | <<locked>> | 86% | 55,201 psi | 87% | 3327 fps | 99.8% |
| ADI AR 2209 | <<locked>> | 98% | 57,261 psi | 90% | 3435 fps | 96.9% |
| Alliant Power Pro 2000-MR | <<locked>> | 82% | 54,447 psi | 85% | 3455 fps | 99.8% |
| Alliant Reloder- TS 15.5 | <<locked>> | 86% | 55,840 psi | 88% | 3350 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 84% | 56,188 psi | 88% | 3376 fps | 99.9% |
| Alliant Reloder-16 | <<locked>> | 94% | 56,666 psi | 89% | 3461 fps | 99.9% |
| Alliant Reloder-17 | <<locked>> | 88% | 54,346 psi | 85% | 3428 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 98% | 56,550 psi | 89% | 3419 fps | 96.9% |
| Alliant Reloder-22ᴾ | <<locked>> | 100% | 53,969 psi | 85% | 3412 fps | 96.5% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 50,894 psi | 80% | 3350 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 44,208 psi | 69% | 3235 fps | 97.4% |
| Alliant Reloder-26 | <<locked>> | 98% | 54,955 psi | 86% | 3497 fps | 99.7% |
| Bofors RP3 | <<locked>> | 86% | 56,840 psi | 89% | 3366 fps | 100% |
| Bofors RP5ᴾ | <<locked>> | 100% | 53,969 psi | 85% | 3412 fps | 96.5% |
| Bofors RP7 | <<locked>> | 90% | 56,202 psi | 88% | 3337 fps | 97.7% |
| Hodgdon H380 | <<locked>> | 86% | 57,450 psi | 90% | 3386 fps | 99.6% |
| Hodgdon H414 | <<locked>> | 90% | 54,520 psi | 85% | 3383 fps | 98% |
| Hodgdon H4350 | <<locked>> | 88% | 54,215 psi | 85% | 3340 fps | 96.7% |
| Hodgdon Hybrid 100V | <<locked>> | 96% | 57,000 psi | 89% | 3376 fps | 100% |
| Hodgdon LEVERevolution | <<locked>> | 82% | 54,940 psi | 86% | 3369 fps | 100% |
| Hodgdon Superformance | <<locked>> | 90% | 55,085 psi | 86% | 3419 fps | 97.8% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,274 psi | 57% | 2165 fps | 100% |
| Hodgdon VARGET | <<locked>> | 82% | 55,390 psi | 87% | 3333 fps | 100% |
| IMR 4064 | <<locked>> | 84% | 54,549 psi | 85% | 3307 fps | 99.9% |
| IMR 4166 Enduron | <<locked>> | 84% | 57,188 psi | 90% | 3340 fps | 98.3% |
| IMR 4350 | <<locked>> | 94% | 57,348 psi | 90% | 3373 fps | 98% |
| IMR 4451 Enduron | <<locked>> | 88% | 54,563 psi | 86% | 3314 fps | 97.8% |
| IMR 4831 | <<locked>> | 94% | 56,434 psi | 88% | 3386 fps | 99.8% |
| IMR 4895 | <<locked>> | 84% | 57,653 psi | 90% | 3412 fps | 100% |
| Lovex S060 | <<locked>> | 82% | 55,970 psi | 88% | 3297 fps | 100% |
| Lovex S062 | <<locked>> | 84% | 54,694 psi | 86% | 3304 fps | 100% |
| Lovex S065 | <<locked>> | 90% | 54,578 psi | 86% | 3310 fps | 98.9% |
| Lovex S070 | <<locked>> | 92% | 55,970 psi | 88% | 3353 fps | 98.3% |
| Lovex S071ᴾ | <<locked>> | 100% | 44,773 psi | 70% | 3140 fps | 96.7% |
| Norma 201 | <<locked>> | 82% | 56,101 psi | 88% | 3320 fps | 100% |
| Norma 202 | <<locked>> | 82% | 56,724 psi | 89% | 3317 fps | 100% |
| Norma 203B | <<locked>> | 84% | 55,477 psi | 87% | 3360 fps | 100% |
| Norma 204 | <<locked>> | 92% | 54,723 psi | 86% | 3363 fps | 96.2% |
| Norma MRPᴾ | <<locked>> | 100% | 57,609 psi | 90% | 3510 fps | 98.5% |
| Norma URP | <<locked>> | 92% | 54,737 psi | 86% | 3379 fps | 99.6% |
| Ramshot Big Game | <<locked>> | 84% | 56,391 psi | 88% | 3383 fps | 100% |
| Ramshot Hunter | <<locked>> | 94% | 57,435 psi | 90% | 3435 fps | 99% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 36,898 psi | 58% | 2215 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 86% | 57,290 psi | 90% | 3360 fps | 98.8% |
| ReloadSwiss RS 52 | <<locked>> | 82% | 57,203 psi | 90% | 3451 fps | 99.9% |
| ReloadSwiss RS 60 | <<locked>> | 86% | 53,795 psi | 84% | 3425 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 92% | 56,217 psi | 88% | 3415 fps | 99.6% |
| ReloadSwiss RS 70 | <<locked>> | 92% | 54,679 psi | 86% | 3445 fps | 99.5% |
| Rottweil R 902 | <<locked>> | 84% | 56,594 psi | 89% | 3317 fps | 100% |
| Rottweil R 903 | <<locked>> | 88% | 56,956 psi | 89% | 3363 fps | 100% |
| Rottweil R 905 | <<locked>> | 98% | 55,680 psi | 87% | 3399 fps | 96.8% |
| Rottweil R 907 | <<locked>> | 90% | 56,202 psi | 88% | 3337 fps | 97.7% |
| Shooters World Long Rifle | <<locked>> | 90% | 54,578 psi | 86% | 3310 fps | 98.9% |
| Shooters World Precision | <<locked>> | 84% | 54,694 psi | 86% | 3304 fps | 100% |
| Shooters World SW4350 | <<locked>> | 92% | 55,970 psi | 88% | 3353 fps | 98.3% |
| SNPE Vectan SP 11 | <<locked>> | 86% | 55,027 psi | 86% | 3366 fps | 100% |
| SNPE Vectan SP 9 | <<locked>> | 82% | 55,883 psi | 88% | 3343 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 82% | 56,739 psi | 89% | 3251 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 86% | 54,360 psi | 85% | 3192 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 90% | 54,389 psi | 85% | 3251 fps | 97.9% |
| SNPE Vectan Tubal 8000 | <<locked>> | 98% | 55,187 psi | 86% | 3396 fps | 96.7% |
| Somchem S335 | <<locked>> | 82% | 56,565 psi | 89% | 3241 fps | 100% |
| Somchem S355 | <<locked>> | 88% | 56,869 psi | 89% | 3360 fps | 100% |
| Somchem S365 | <<locked>> | 94% | 54,012 psi | 85% | 3383 fps | 100% |
| Somchem S385 | <<locked>> | 98% | 56,434 psi | 88% | 3376 fps | 97.8% |
| Vihtavuori N133 | <<locked>> | 82% | 57,217 psi | 90% | 3228 fps | 100% |
| Vihtavuori N135 | <<locked>> | 84% | 56,840 psi | 89% | 3278 fps | 100% |
| Vihtavuori N140 | <<locked>> | 84% | 57,464 psi | 90% | 3294 fps | 100% |
| Vihtavuori N150 | <<locked>> | 88% | 54,665 psi | 86% | 3274 fps | 100% |
| Vihtavuori N160 | <<locked>> | 92% | 56,971 psi | 89% | 3379 fps | 99.7% |
| Vihtavuori N165ᴾ | <<locked>> | 100% | 52,330 psi | 82% | 3278 fps | 96.6% |
| Vihtavuori N540 | <<locked>> | 84% | 55,724 psi | 87% | 3281 fps | 100% |
| Vihtavuori N550 | <<locked>> | 92% | 56,057 psi | 88% | 3376 fps | 99.6% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 56,826 psi | 89% | 3438 fps | 100% |
| Winchester 6.5 StaBALL | <<locked>> | 92% | 56,942 psi | 89% | 3337 fps | 100% |
| Winchester 760 | <<locked>> | 90% | 54,766 psi | 86% | 3386 fps | 98% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 46,209 psi | 72% | 3396 fps | 100% |
| Winchester StaBALL Match | <<locked>> | 82% | 56,202 psi | 88% | 3353 fps | 100% |
| Winchester Supreme 780ᴾ | <<locked>> | 100% | 56,898 psi | 89% | 3366 fps | 96.9% |
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% | 50,995 psi | 80% | 3179 fps | 100% |
| Accurate 2700 | <<locked>> | 80% | 48,979 psi | 77% | 3159 fps | 95.9% |
| Accurate 3100 | <<locked>> | 92% | 41,118 psi | 64% | 3058 fps | 95.6% |
| Accurate 4064 | <<locked>> | 80% | 48,254 psi | 76% | 3179 fps | 100% |
| Accurate 4350 | <<locked>> | 80% | 36,796 psi | 58% | 2982 fps | 95.8% |
| ADI AR 2206H | <<locked>> | 80% | 53,824 psi | 84% | 3320 fps | 99.9% |
| ADI AR 2208 | <<locked>> | 80% | 45,687 psi | 72% | 3140 fps | 98.8% |
| ADI AR 2209 | <<locked>> | 94% | 50,038 psi | 78% | 3294 fps | 95.1% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 50,502 psi | 79% | 3376 fps | 99.5% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 46,180 psi | 72% | 3169 fps | 99.7% |
| Alliant Reloder-15 | <<locked>> | 80% | 49,356 psi | 77% | 3248 fps | 99.4% |
| Alliant Reloder-16 | <<locked>> | 80% | 35,897 psi | 56% | 2995 fps | 95.8% |
| Alliant Reloder-17 | <<locked>> | 80% | 40,770 psi | 64% | 3146 fps | 98.9% |
| Alliant Reloder-19 | <<locked>> | 94% | 49,545 psi | 78% | 3284 fps | 95.2% |
| Alliant Reloder-22 | <<locked>> | 98% | 50,285 psi | 79% | 3340 fps | 95.6% |
| Alliant Reloder-23 | <<locked>> | 86% | 32,010 psi | 50% | 2890 fps | 95.9% |
| Alliant Reloder-25 | <<locked>> | 96% | 38,928 psi | 61% | 3097 fps | 95.4% |
| Alliant Reloder-26 | 73.2 gr | 88% | 37,652 psi | 59% | 3107 fps | 95.8% |
| Bofors RP3 | <<locked>> | 80% | 46,601 psi | 73% | 3182 fps | 99.8% |
| Bofors RP5 | <<locked>> | 98% | 50,285 psi | 79% | 3340 fps | 95.6% |
| Bofors RP7 | <<locked>> | 84% | 46,543 psi | 73% | 3146 fps | 95.5% |
| Hodgdon H380 | <<locked>> | 80% | 46,847 psi | 73% | 3186 fps | 98.2% |
| Hodgdon H414 | <<locked>> | 84% | 44,570 psi | 70% | 3179 fps | 95.5% |
| Hodgdon H4350 | <<locked>> | 86% | 50,763 psi | 80% | 3271 fps | 95.8% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 33,402 psi | 52% | 2881 fps | 96.7% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 51,097 psi | 80% | 3301 fps | 100% |
| Hodgdon Superformance | 73.8 gr | 86% | 47,471 psi | 74% | 3268 fps | 96% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,093 psi | 42% | 1946 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 52,011 psi | 82% | 3271 fps | 99.9% |
| IMR 4064 | <<locked>> | 80% | 48,051 psi | 75% | 3182 fps | 99.3% |
| IMR 4166 Enduron | <<locked>> | 80% | 50,372 psi | 79% | 3209 fps | 97.1% |
| IMR 4350 | <<locked>> | 88% | 47,442 psi | 74% | 3182 fps | 95.8% |
| IMR 4451 Enduron | <<locked>> | 82% | 45,150 psi | 71% | 3120 fps | 95.6% |
| IMR 4831 | <<locked>> | 80% | 35,404 psi | 55% | 2930 fps | 95.4% |
| IMR 4895 | <<locked>> | 80% | 50,618 psi | 79% | 3281 fps | 99.8% |
| Lovex S060 | <<locked>> | 80% | 52,605 psi | 82% | 3238 fps | 99.9% |
| Lovex S062 | <<locked>> | 80% | 48,254 psi | 76% | 3182 fps | 99.9% |
| Lovex S065 | <<locked>> | 80% | 39,784 psi | 62% | 2992 fps | 95.5% |
| Lovex S070 | <<locked>> | 84% | 43,381 psi | 68% | 3094 fps | 95.4% |
| Lovex S071 | <<locked>> | 98% | 42,018 psi | 66% | 3081 fps | 95.9% |
| Norma 201 | <<locked>> | 80% | 52,475 psi | 82% | 3258 fps | 100% |
| Norma 202 | <<locked>> | 80% | 53,243 psi | 83% | 3261 fps | 100% |
| Norma 203B | <<locked>> | 80% | 48,704 psi | 76% | 3232 fps | 99.6% |
| Norma 204 | <<locked>> | 90% | 51,039 psi | 80% | 3291 fps | 95.3% |
| Norma MRP | <<locked>> | 94% | 46,470 psi | 73% | 3291 fps | 96% |
| Norma URP | <<locked>> | 80% | 36,579 psi | 57% | 2979 fps | 95.6% |
| Ramshot Big Game | <<locked>> | 80% | 49,081 psi | 77% | 3251 fps | 99.6% |
| Ramshot Hunter | <<locked>> | 84% | 40,843 psi | 64% | 3094 fps | 95.3% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,543 psi | 43% | 1988 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 46,992 psi | 74% | 3163 fps | 96.9% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 53,330 psi | 84% | 3386 fps | 99.7% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 43,308 psi | 68% | 3219 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 36,535 psi | 57% | 2995 fps | 95.4% |
| ReloadSwiss RS 70 | 67.6 gr | 82% | 38,348 psi | 60% | 3071 fps | 95.5% |
| Rottweil R 902 | <<locked>> | 80% | 50,082 psi | 78% | 3205 fps | 100% |
| Rottweil R 903 | <<locked>> | 80% | 43,685 psi | 68% | 3114 fps | 99.3% |
| Rottweil R 905 | <<locked>> | 94% | 48,747 psi | 76% | 3264 fps | 95.1% |
| Rottweil R 907 | <<locked>> | 84% | 46,543 psi | 73% | 3146 fps | 95.5% |
| Shooters World Long Rifle | <<locked>> | 80% | 39,784 psi | 62% | 2992 fps | 95.5% |
| Shooters World Precision | <<locked>> | 80% | 48,254 psi | 76% | 3182 fps | 99.9% |
| Shooters World SW4350 | <<locked>> | 84% | 43,381 psi | 68% | 3094 fps | 95.4% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 44,904 psi | 70% | 3169 fps | 99.1% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 52,359 psi | 82% | 3278 fps | 99.9% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 53,200 psi | 83% | 3192 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 44,976 psi | 70% | 3031 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 84% | 44,570 psi | 70% | 3058 fps | 95.7% |
| SNPE Vectan Tubal 8000 | <<locked>> | 94% | 48,298 psi | 76% | 3258 fps | 95% |
| Somchem S335 | <<locked>> | 80% | 53,026 psi | 83% | 3186 fps | 100% |
| Somchem S355 | <<locked>> | 80% | 43,961 psi | 69% | 3114 fps | 99.2% |
| Somchem S365 | <<locked>> | 80% | 32,996 psi | 52% | 2927 fps | 97.9% |
| Somchem S385 | <<locked>> | 92% | 46,166 psi | 72% | 3173 fps | 95.4% |
| Vihtavuori N133 | <<locked>> | 80% | 53,751 psi | 84% | 3176 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 50,111 psi | 79% | 3173 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 50,459 psi | 79% | 3179 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 42,076 psi | 66% | 3035 fps | 99.7% |
| Vihtavuori N160 | <<locked>> | 80% | 38,029 psi | 60% | 2986 fps | 96.2% |
| Vihtavuori N165 | <<locked>> | 98% | 48,805 psi | 76% | 3212 fps | 95.7% |
| Vihtavuori N540 | <<locked>> | 80% | 48,863 psi | 77% | 3166 fps | 100% |
| Vihtavuori N550 | <<locked>> | 80% | 37,521 psi | 59% | 2982 fps | 95.8% |
| Vihtavuori N555 | <<locked>> | 84% | 33,098 psi | 52% | 2913 fps | 95% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 37,420 psi | 59% | 2953 fps | 98.4% |
| Winchester 760 | <<locked>> | 84% | 44,570 psi | 70% | 3179 fps | 95.5% |
| Winchester StaBALL HD | <<locked>> | 88% | 30,429 psi | 48% | 2923 fps | 95.8% |
| Winchester StaBALL Match | <<locked>> | 80% | 52,344 psi | 82% | 3287 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 96% | 49,458 psi | 78% | 3232 fps | 95.1% |
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 101 powders for 7 mm Weath. Mag. loaded with the .284 | 110gr | Speer TNT. Norma MRP delivers the highest muzzle velocity at 3,510 fps; across all powders the maximum-charge window runs from 2,165 fps to 3,510 fps. Accurate 3100 gives the best case fill at 100 %, and 101 of the 101 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 110.0 gr projectile in 0.284" calls for a 1:14.0 twist; slower twists will usually not stabilise this weight. Accurate 3100, Accurate MAGPRO, ADI AR 2213 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 | 110gr | Speer TNT they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, Accurate MAGPRO, ADI AR 2213, Hodgdon H1000 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.