Load Specifications
Load data in caliber 7 mm Weath. Mag. with .284 | 140gr | Nosler AccuBond bullet and 82 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Hodgdon H1000, Alliant Reloder-26 and Accurate High Country.
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 3100 | <<locked>> | 98% | 57,551 psi | 90% | 3064 fps | 99.9% |
| Accurate 4064 | <<locked>> | 82% | 57,711 psi | 90% | 2989 fps | 100% |
| Accurate 4350 | <<locked>> | 88% | 55,361 psi | 87% | 3051 fps | 100% |
| Accurate High Country | <<locked>> | 94% | 55,172 psi | 86% | 3156 fps | 97.8% |
| Accurate MAGPRO | <<locked>> | 96% | 56,159 psi | 88% | 3156 fps | 96.7% |
| ADI AR 2208 | <<locked>> | 84% | 56,985 psi | 89% | 3022 fps | 100% |
| ADI AR 2209 | <<locked>> | 94% | 56,173 psi | 88% | 3104 fps | 98.7% |
| ADI AR 2213 | <<locked>> | 96% | 53,867 psi | 84% | 3094 fps | 97.2% |
| ADI AR 2225ᴾ | <<locked>> | 100% | 40,045 psi | 63% | 2861 fps | 97% |
| Alliant Reloder- TS 15.5 | <<locked>> | 82% | 54,781 psi | 86% | 2992 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 90% | 56,202 psi | 88% | 3114 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 86% | 57,435 psi | 90% | 3130 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 94% | 55,709 psi | 87% | 3087 fps | 98.6% |
| Alliant Reloder-22 | <<locked>> | 98% | 57,334 psi | 90% | 3156 fps | 99% |
| Alliant Reloder-23 | <<locked>> | 98% | 54,578 psi | 86% | 3077 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 50,372 psi | 79% | 3071 fps | 99.9% |
| Alliant Reloder-26 | <<locked>> | 94% | 54,694 psi | 86% | 3163 fps | 100% |
| Bofors RP15ᴾ | <<locked>> | 100% | 56,188 psi | 88% | 3136 fps | 98.7% |
| Bofors RP3 | <<locked>> | 82% | 55,695 psi | 87% | 3009 fps | 100% |
| Bofors RP30ᴾ | <<locked>> | 100% | 46,325 psi | 73% | 2986 fps | 96.2% |
| Bofors RP5 | <<locked>> | 98% | 57,334 psi | 90% | 3156 fps | 99% |
| Bofors RP7 | <<locked>> | 86% | 54,766 psi | 86% | 2995 fps | 99.1% |
| Hodgdon H1000ᴾ | <<locked>> | 100% | 49,690 psi | 78% | 3009 fps | 97.2% |
| Hodgdon H380 | <<locked>> | 82% | 55,941 psi | 88% | 3028 fps | 100% |
| Hodgdon H414 | <<locked>> | 88% | 57,319 psi | 90% | 3107 fps | 99.7% |
| Hodgdon H4350 | <<locked>> | 86% | 56,666 psi | 89% | 3064 fps | 98.9% |
| Hodgdon H4831 | <<locked>> | 94% | 54,012 psi | 85% | 3035 fps | 96.6% |
| Hodgdon H4831 SC | <<locked>> | 96% | 56,579 psi | 89% | 3077 fps | 97.1% |
| Hodgdon Hybrid 100V | <<locked>> | 92% | 56,623 psi | 89% | 3031 fps | 100% |
| Hodgdon Retumboᴾ | <<locked>> | 100% | 49,385 psi | 77% | 3117 fps | 98.5% |
| Hodgdon Superformance | <<locked>> | 86% | 53,882 psi | 84% | 3081 fps | 99.2% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,854 psi | 58% | 1923 fps | 100% |
| IMR 4064 | <<locked>> | 82% | 56,463 psi | 88% | 3002 fps | 100% |
| IMR 4350 | <<locked>> | 90% | 56,086 psi | 88% | 3035 fps | 99.3% |
| IMR 4451 Enduron | <<locked>> | 86% | 56,246 psi | 88% | 3022 fps | 99.5% |
| IMR 4831 | <<locked>> | 90% | 55,898 psi | 88% | 3045 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 94% | 55,288 psi | 87% | 3025 fps | 97.1% |
| IMR 7828 SSC | <<locked>> | 98% | 55,201 psi | 87% | 3130 fps | 97.6% |
| Lovex S062 | <<locked>> | 82% | 56,753 psi | 89% | 2992 fps | 100% |
| Lovex S065 | <<locked>> | 88% | 56,695 psi | 89% | 3022 fps | 99.9% |
| Lovex S070 | <<locked>> | 88% | 54,737 psi | 86% | 3012 fps | 99.5% |
| Lovex S071ᴾ | <<locked>> | 100% | 51,227 psi | 80% | 2966 fps | 99.5% |
| Norma 203B | <<locked>> | 82% | 57,740 psi | 90% | 3054 fps | 100% |
| Norma 204 | <<locked>> | 90% | 57,087 psi | 89% | 3091 fps | 98.6% |
| Norma MRP | <<locked>> | 96% | 57,174 psi | 90% | 3182 fps | 99.7% |
| Norma URP | <<locked>> | 90% | 57,580 psi | 90% | 3091 fps | 100% |
| Ramshot Grand | <<locked>> | 98% | 55,985 psi | 88% | 3153 fps | 98.1% |
| Ramshot Hunter | <<locked>> | 90% | 56,333 psi | 88% | 3094 fps | 99.9% |
| Ramshot Magnumᴾ | <<locked>> | 100% | 54,114 psi | 85% | 3084 fps | 99.1% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 37,463 psi | 59% | 1965 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 82% | 55,651 psi | 87% | 3012 fps | 99.7% |
| ReloadSwiss RS 60 | <<locked>> | 84% | 56,927 psi | 89% | 3120 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 88% | 55,405 psi | 87% | 3074 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 90% | 57,696 psi | 90% | 3166 fps | 100% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 49,690 psi | 78% | 3114 fps | 99.3% |
| Rottweil R 903 | <<locked>> | 84% | 56,028 psi | 88% | 3009 fps | 100% |
| Rottweil R 904 | <<locked>> | 94% | 57,580 psi | 90% | 3071 fps | 98% |
| Rottweil R 905 | <<locked>> | 94% | 55,129 psi | 86% | 3077 fps | 98.7% |
| Rottweil R 907 | <<locked>> | 86% | 54,766 psi | 86% | 2995 fps | 99.1% |
| Shooters World Long Rifle | <<locked>> | 88% | 56,695 psi | 89% | 3022 fps | 99.9% |
| Shooters World Precision | <<locked>> | 82% | 56,753 psi | 89% | 2992 fps | 100% |
| Shooters World SW4350 | <<locked>> | 88% | 54,737 psi | 86% | 3012 fps | 99.5% |
| SNPE Vectan SP 11 | <<locked>> | 84% | 57,421 psi | 90% | 3068 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 84% | 56,159 psi | 88% | 2881 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 88% | 56,289 psi | 88% | 2976 fps | 99.5% |
| SNPE Vectan Tubal 8000 | <<locked>> | 94% | 54,679 psi | 86% | 3071 fps | 98.6% |
| Somchem S355 | <<locked>> | 84% | 55,666 psi | 87% | 3002 fps | 100% |
| Somchem S361 | <<locked>> | 92% | 55,709 psi | 87% | 3005 fps | 96.9% |
| Somchem S365 | <<locked>> | 92% | 57,696 psi | 90% | 3094 fps | 100% |
| Somchem S385 | <<locked>> | 94% | 55,854 psi | 88% | 3051 fps | 99.2% |
| Vihtavuori N150 | <<locked>> | 86% | 56,956 psi | 89% | 2972 fps | 100% |
| Vihtavuori N160 | <<locked>> | 88% | 55,767 psi | 87% | 3028 fps | 100% |
| Vihtavuori N165 | <<locked>> | 98% | 55,100 psi | 86% | 3025 fps | 98.9% |
| Vihtavuori N540 | <<locked>> | 82% | 57,667 psi | 90% | 2972 fps | 100% |
| Vihtavuori N550 | <<locked>> | 88% | 54,969 psi | 86% | 3031 fps | 100% |
| Vihtavuori N555 | <<locked>> | 96% | 56,927 psi | 89% | 3107 fps | 100% |
| Vihtavuori N560 | <<locked>> | 96% | 57,116 psi | 90% | 3173 fps | 97.5% |
| Vihtavuori N565ᴾ | <<locked>> | 100% | 52,910 psi | 83% | 3077 fps | 96.9% |
| Winchester 6.5 StaBALL | <<locked>> | 88% | 55,448 psi | 87% | 2989 fps | 100% |
| Winchester 760 | <<locked>> | 88% | 57,551 psi | 90% | 3114 fps | 99.7% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 55,317 psi | 87% | 3215 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 96% | 55,854 psi | 88% | 3045 fps | 98.6% |
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 3100 | <<locked>> | 82% | 33,489 psi | 52% | 2592 fps | 95.4% |
| Accurate 4064 | <<locked>> | 80% | 54,012 psi | 85% | 2936 fps | 100% |
| Accurate 4350 | <<locked>> | 80% | 42,076 psi | 66% | 2815 fps | 99.2% |
| Accurate High Country | 66.9 gr | 88% | 44,599 psi | 70% | 2953 fps | 95.1% |
| Accurate MAGPRO | <<locked>> | 94% | 52,185 psi | 82% | 3084 fps | 95.8% |
| ADI AR 2208 | <<locked>> | 80% | 50,444 psi | 79% | 2913 fps | 100% |
| ADI AR 2209 | <<locked>> | 86% | 43,076 psi | 68% | 2851 fps | 95.7% |
| ADI AR 2213 | <<locked>> | 92% | 47,137 psi | 74% | 2966 fps | 95.5% |
| ADI AR 2225 | <<locked>> | 98% | 37,463 psi | 59% | 2792 fps | 95.8% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 51,488 psi | 81% | 2940 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 80% | 40,495 psi | 63% | 2822 fps | 99.3% |
| Alliant Reloder-17 | <<locked>> | 80% | 46,586 psi | 73% | 2953 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 86% | 43,018 psi | 67% | 2848 fps | 95.8% |
| Alliant Reloder-22 | <<locked>> | 88% | 40,814 psi | 64% | 2838 fps | 95.2% |
| Alliant Reloder-23 | <<locked>> | 80% | 29,950 psi | 47% | 2562 fps | 97.7% |
| Alliant Reloder-25 | <<locked>> | 86% | 31,836 psi | 50% | 2631 fps | 95.2% |
| Alliant Reloder-26 | 62.7 gr | 80% | 32,445 psi | 51% | 2687 fps | 96.4% |
| Bofors RP15 | <<locked>> | 92% | 43,134 psi | 68% | 2887 fps | 95.8% |
| Bofors RP3 | <<locked>> | 80% | 52,040 psi | 82% | 2949 fps | 100% |
| Bofors RP30 | <<locked>> | 98% | 43,192 psi | 68% | 2920 fps | 95.2% |
| Bofors RP5 | <<locked>> | 88% | 40,814 psi | 64% | 2838 fps | 95.2% |
| Bofors RP7 | <<locked>> | 80% | 45,353 psi | 71% | 2822 fps | 97.5% |
| Hodgdon H1000 | 70.7 gr | 96% | 43,410 psi | 68% | 2877 fps | 95.3% |
| Hodgdon H380 | <<locked>> | 80% | 52,330 psi | 82% | 2969 fps | 99.9% |
| Hodgdon H414 | <<locked>> | 80% | 43,830 psi | 69% | 2861 fps | 97.7% |
| Hodgdon H4350 | <<locked>> | 80% | 46,499 psi | 73% | 2881 fps | 97.1% |
| Hodgdon H4831 | <<locked>> | 92% | 50,386 psi | 79% | 2972 fps | 95.8% |
| Hodgdon H4831 SC | <<locked>> | 92% | 49,487 psi | 78% | 2956 fps | 95.5% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 38,101 psi | 60% | 2703 fps | 99.6% |
| Hodgdon Retumbo | <<locked>> | 94% | 40,480 psi | 63% | 2910 fps | 95.7% |
| Hodgdon Superformance | <<locked>> | 80% | 42,946 psi | 67% | 2874 fps | 97.2% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,427 psi | 43% | 1716 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 53,040 psi | 83% | 2946 fps | 100% |
| IMR 4350 | <<locked>> | 80% | 40,944 psi | 64% | 2746 fps | 96.3% |
| IMR 4451 Enduron | <<locked>> | 80% | 46,746 psi | 73% | 2854 fps | 98.2% |
| IMR 4831 | <<locked>> | 80% | 40,176 psi | 63% | 2759 fps | 99% |
| IMR 4955 Enduron | <<locked>> | 90% | 48,733 psi | 76% | 2907 fps | 95.5% |
| IMR 7828 SSC | <<locked>> | 92% | 45,049 psi | 71% | 2936 fps | 95% |
| Lovex S062 | <<locked>> | 80% | 53,388 psi | 84% | 2943 fps | 100% |
| Lovex S065 | <<locked>> | 80% | 44,251 psi | 69% | 2802 fps | 98.8% |
| Lovex S070 | <<locked>> | 80% | 42,641 psi | 67% | 2785 fps | 97.6% |
| Lovex S071 | <<locked>> | 86% | 32,692 psi | 51% | 2572 fps | 95% |
| Norma 203B | <<locked>> | 80% | 54,085 psi | 85% | 2999 fps | 100% |
| Norma 204 | <<locked>> | 82% | 43,540 psi | 68% | 2838 fps | 95.8% |
| Norma MRP | <<locked>> | 84% | 37,420 psi | 59% | 2789 fps | 95.6% |
| Norma URP | <<locked>> | 80% | 41,553 psi | 65% | 2805 fps | 99.1% |
| Ramshot Grand | <<locked>> | 92% | 45,049 psi | 71% | 2946 fps | 95.4% |
| Ramshot Hunter | <<locked>> | 80% | 40,364 psi | 63% | 2792 fps | 97.6% |
| Ramshot Magnum | <<locked>> | 92% | 40,248 psi | 63% | 2815 fps | 95.9% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 28,021 psi | 44% | 1759 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 52,170 psi | 82% | 2953 fps | 99.4% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 49,429 psi | 77% | 3005 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 41,974 psi | 66% | 2831 fps | 99% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 40,350 psi | 63% | 2841 fps | 98.7% |
| ReloadSwiss RS 76 | <<locked>> | 92% | 37,362 psi | 59% | 2825 fps | 95.6% |
| Rottweil R 903 | <<locked>> | 80% | 49,168 psi | 77% | 2900 fps | 100% |
| Rottweil R 904 | <<locked>> | 86% | 44,657 psi | 70% | 2835 fps | 95% |
| Rottweil R 905 | <<locked>> | 86% | 42,192 psi | 66% | 2828 fps | 95.8% |
| Rottweil R 907 | <<locked>> | 80% | 45,353 psi | 71% | 2822 fps | 97.5% |
| Shooters World Long Rifle | <<locked>> | 80% | 44,251 psi | 69% | 2802 fps | 98.8% |
| Shooters World Precision | <<locked>> | 80% | 53,388 psi | 84% | 2943 fps | 100% |
| Shooters World SW4350 | <<locked>> | 80% | 42,641 psi | 67% | 2785 fps | 97.6% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 50,328 psi | 79% | 2953 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 49,545 psi | 78% | 2785 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 43,337 psi | 68% | 2743 fps | 97.6% |
| SNPE Vectan Tubal 8000 | <<locked>> | 86% | 41,829 psi | 66% | 2825 fps | 95.6% |
| Somchem S355 | <<locked>> | 80% | 49,008 psi | 77% | 2894 fps | 100% |
| Somchem S361 | <<locked>> | 88% | 48,762 psi | 76% | 2881 fps | 95.3% |
| Somchem S365 | <<locked>> | 80% | 38,247 psi | 60% | 2759 fps | 100% |
| Somchem S385 | <<locked>> | 82% | 37,521 psi | 59% | 2694 fps | 95.1% |
| Vihtavuori N150 | <<locked>> | 80% | 47,036 psi | 74% | 2818 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 42,946 psi | 67% | 2802 fps | 99.3% |
| Vihtavuori N165 | <<locked>> | 88% | 39,537 psi | 62% | 2730 fps | 95.4% |
| Vihtavuori N540 | <<locked>> | 80% | 54,085 psi | 85% | 2920 fps | 100% |
| Vihtavuori N550 | <<locked>> | 80% | 42,409 psi | 66% | 2802 fps | 99.1% |
| Vihtavuori N555 | <<locked>> | 80% | 33,562 psi | 53% | 2648 fps | 97.7% |
| Vihtavuori N560 | <<locked>> | 92% | 49,792 psi | 78% | 3041 fps | 95.9% |
| Vihtavuori N565 | <<locked>> | 96% | 46,108 psi | 72% | 2949 fps | 95.2% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 41,916 psi | 66% | 2762 fps | 100% |
| Winchester 760 | <<locked>> | 80% | 44,019 psi | 69% | 2864 fps | 97.7% |
| Winchester StaBALL HD | <<locked>> | 80% | 26,585 psi | 42% | 2543 fps | 96.9% |
| Winchester Supreme 780 | <<locked>> | 88% | 42,206 psi | 66% | 2795 fps | 95.6% |
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 87 powders for 7 mm Weath. Mag. loaded with the .284 | 140gr | Nosler AccuBond. Winchester StaBALL HD delivers the highest muzzle velocity at 3,215 fps; across all powders the maximum-charge window runs from 1,923 fps to 3,215 fps. ADI AR 2217 gives the best case fill at 100 %, and 87 of the 87 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 140.0 gr projectile in 0.284" calls for a 1:11.0 twist; slower twists will usually not stabilise this weight. ADI AR 2217, ADI AR 2225, Alliant Reloder-25 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. Hodgdon H1000, Alliant Reloder-26, Accurate High Country rank at the top here: for 7 mm Weath. Mag. with the .284 | 140gr | Nosler AccuBond they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, Baschieri & Pellagri 109, Norma 217, ReloadSwiss RS 80 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.