Load Specifications
Load data in caliber 7-.300 Norma Mag. with .284 | 140gr | Nosler Solid Base bullet and 70 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Hodgdon Retumbo, ReloadSwiss RS 76 and ReloadSwiss RS 80.
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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Max Load - Barrel Length: 26"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 3100 | <<locked>> | 90% | 55,593 psi | 87% | 3153 fps | 100% |
| Accurate 4350 | <<locked>> | 82% | 56,101 psi | 88% | 3179 fps | 100% |
| Accurate High Country | <<locked>> | 88% | 57,246 psi | 90% | 3317 fps | 99.5% |
| Accurate MAGPRO | <<locked>> | 88% | 54,259 psi | 85% | 3251 fps | 98.4% |
| ADI AR 2209 | <<locked>> | 88% | 57,058 psi | 89% | 3248 fps | 99.8% |
| ADI AR 2213 | <<locked>> | 90% | 55,056 psi | 86% | 3255 fps | 99.2% |
| ADI AR 2217ᴾ | <<locked>> | 100% | 57,392 psi | 90% | 3284 fps | 99.7% |
| ADI AR 2225ᴾ | <<locked>> | 100% | 51,735 psi | 81% | 3241 fps | 100% |
| Alliant Power Pro Varmint | <<locked>> | 88% | 57,203 psi | 90% | 3241 fps | 99.8% |
| Alliant Reloder-16 | <<locked>> | 84% | 57,087 psi | 89% | 3238 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 88% | 56,550 psi | 89% | 3232 fps | 99.8% |
| Alliant Reloder-22 | <<locked>> | 90% | 55,463 psi | 87% | 3248 fps | 99.8% |
| Alliant Reloder-23 | <<locked>> | 92% | 57,159 psi | 90% | 3215 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 96% | 57,000 psi | 89% | 3284 fps | 100% |
| Alliant Reloder-26 | <<locked>> | 86% | 53,664 psi | 84% | 3245 fps | 100% |
| Alliant Reloder-33ᴾ | <<locked>> | 100% | 54,781 psi | 86% | 3304 fps | 97% |
| Baschieri & Pellagri 109 | <<locked>> | 92% | 56,159 psi | 88% | 3209 fps | 97.3% |
| Bofors RP15 | <<locked>> | 92% | 54,824 psi | 86% | 3238 fps | 99.7% |
| Bofors RP30 | <<locked>> | 98% | 56,942 psi | 89% | 3297 fps | 99.7% |
| Bofors RP5 | <<locked>> | 90% | 55,463 psi | 87% | 3248 fps | 99.8% |
| Bofors RP7 | <<locked>> | 82% | 57,348 psi | 90% | 3176 fps | 100% |
| Hodgdon H1000 | <<locked>> | 96% | 54,984 psi | 86% | 3245 fps | 99.7% |
| Hodgdon H414 | <<locked>> | 82% | 57,551 psi | 90% | 3238 fps | 100% |
| Hodgdon H4831 | <<locked>> | 88% | 54,505 psi | 85% | 3182 fps | 98.7% |
| Hodgdon H4831 SC | <<locked>> | 90% | 57,261 psi | 90% | 3228 fps | 99% |
| Hodgdon Hybrid 100V | <<locked>> | 86% | 57,203 psi | 90% | 3150 fps | 100% |
| Hodgdon Retumbo | <<locked>> | 96% | 55,782 psi | 87% | 3373 fps | 100% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 37,492 psi | 59% | 2057 fps | 100% |
| IMR 4350 | <<locked>> | 84% | 55,811 psi | 87% | 3159 fps | 100% |
| IMR 4831 | <<locked>> | 84% | 56,449 psi | 88% | 3169 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 88% | 55,347 psi | 87% | 3163 fps | 98.9% |
| IMR 7828 SSC | <<locked>> | 92% | 57,217 psi | 90% | 3297 fps | 99.5% |
| IMR 8133 Enduronᴾ | <<locked>> | 100% | 47,282 psi | 74% | 3140 fps | 98.4% |
| Lovex S065 | <<locked>> | 82% | 56,173 psi | 88% | 3140 fps | 100% |
| Lovex S070 | <<locked>> | 82% | 54,636 psi | 86% | 3140 fps | 100% |
| Lovex S071 | <<locked>> | 96% | 57,087 psi | 89% | 3176 fps | 100% |
| Norma 204 | <<locked>> | 84% | 57,217 psi | 90% | 3225 fps | 99.8% |
| Norma 217ᴾ | <<locked>> | 100% | 47,935 psi | 75% | 3169 fps | 99.8% |
| Norma MRP | <<locked>> | 88% | 55,564 psi | 87% | 3271 fps | 100% |
| Norma URP | <<locked>> | 82% | 54,360 psi | 85% | 3159 fps | 100% |
| Ramshot Grand | <<locked>> | 90% | 54,114 psi | 85% | 3251 fps | 99.4% |
| Ramshot Hunter | <<locked>> | 84% | 57,043 psi | 89% | 3222 fps | 100% |
| Ramshot Magnum | <<locked>> | 94% | 56,855 psi | 89% | 3245 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 38,276 psi | 60% | 2103 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 82% | 56,144 psi | 88% | 3199 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 82% | 54,650 psi | 86% | 3228 fps | 100% |
| ReloadSwiss RS 76 | <<locked>> | 96% | 57,058 psi | 89% | 3366 fps | 100% |
| ReloadSwiss RS 80 | <<locked>> | 98% | 56,275 psi | 88% | 3317 fps | 98.9% |
| Rottweil R 904 | <<locked>> | 86% | 54,056 psi | 85% | 3150 fps | 99.1% |
| Rottweil R 905 | <<locked>> | 88% | 56,188 psi | 88% | 3222 fps | 99.8% |
| Rottweil R 907 | <<locked>> | 82% | 57,348 psi | 90% | 3176 fps | 100% |
| Shooters World Long Rifle | <<locked>> | 82% | 56,173 psi | 88% | 3140 fps | 100% |
| Shooters World SW4350 | <<locked>> | 82% | 54,636 psi | 86% | 3140 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 82% | 55,143 psi | 86% | 3091 fps | 100% |
| SNPE Vectan Tubal 8000 | <<locked>> | 88% | 55,825 psi | 87% | 3219 fps | 99.8% |
| Somchem S361 | <<locked>> | 86% | 55,622 psi | 87% | 3140 fps | 98.8% |
| Somchem S365 | <<locked>> | 84% | 55,347 psi | 87% | 3159 fps | 100% |
| Somchem S385 | <<locked>> | 88% | 56,565 psi | 89% | 3189 fps | 100% |
| Vihtavuori N160 | <<locked>> | 82% | 55,956 psi | 88% | 3146 fps | 100% |
| Vihtavuori N165 | <<locked>> | 92% | 56,376 psi | 88% | 3169 fps | 99.9% |
| Vihtavuori N550 | <<locked>> | 82% | 55,274 psi | 87% | 3153 fps | 100% |
| Vihtavuori N555 | <<locked>> | 88% | 55,521 psi | 87% | 3192 fps | 100% |
| Vihtavuori N560 | <<locked>> | 88% | 55,100 psi | 86% | 3268 fps | 98.9% |
| Vihtavuori N565 | <<locked>> | 94% | 55,738 psi | 87% | 3255 fps | 99.2% |
| Vihtavuori N568 | <<locked>> | 98% | 56,913 psi | 89% | 3320 fps | 98.6% |
| Vihtavuori N570 | <<locked>> | 98% | 53,867 psi | 84% | 3310 fps | 96.3% |
| Winchester 6.5 StaBALL | <<locked>> | 82% | 55,376 psi | 87% | 3094 fps | 100% |
| Winchester 760 | <<locked>> | 82% | 57,551 psi | 90% | 3238 fps | 100% |
| Winchester StaBALL HD | <<locked>> | 92% | 56,478 psi | 89% | 3307 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 90% | 56,579 psi | 89% | 3186 fps | 99.8% |
Recommended = one of the top powders for this cartridge and bullet combination.
Start Load - Barrel Length: 26"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 3100 | <<locked>> | 80% | 39,537 psi | 62% | 2848 fps | 99.1% |
| Accurate 4350 | <<locked>> | 80% | 52,359 psi | 82% | 3117 fps | 100% |
| Accurate High Country | <<locked>> | 80% | 43,192 psi | 68% | 3038 fps | 97% |
| Accurate MAGPRO | <<locked>> | 82% | 43,903 psi | 69% | 3041 fps | 95.9% |
| ADI AR 2209 | <<locked>> | 80% | 43,468 psi | 68% | 2989 fps | 98% |
| ADI AR 2213 | <<locked>> | 80% | 38,972 psi | 61% | 2913 fps | 95.4% |
| ADI AR 2217 | <<locked>> | 88% | 37,898 psi | 59% | 2881 fps | 95.4% |
| ADI AR 2225 | <<locked>> | 84% | 30,255 psi | 47% | 2707 fps | 95.1% |
| Alliant Power Pro Varmint | <<locked>> | 80% | 43,903 psi | 69% | 2989 fps | 98.1% |
| Alliant Reloder-16 | <<locked>> | 80% | 50,096 psi | 79% | 3123 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 80% | 43,497 psi | 68% | 2982 fps | 98.1% |
| Alliant Reloder-22 | <<locked>> | 80% | 39,508 psi | 62% | 2923 fps | 97.1% |
| Alliant Reloder-23 | <<locked>> | 80% | 38,247 psi | 60% | 2874 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 80% | 32,982 psi | 52% | 2785 fps | 98.2% |
| Alliant Reloder-26 | <<locked>> | 80% | 42,786 psi | 67% | 3041 fps | 100% |
| Alliant Reloder-33 | <<locked>> | 98% | 50,763 psi | 80% | 3228 fps | 96% |
| Baschieri & Pellagri 109 | <<locked>> | 88% | 49,443 psi | 77% | 3077 fps | 95.7% |
| Bofors RP15 | <<locked>> | 80% | 36,695 psi | 57% | 2851 fps | 95.9% |
| Bofors RP30 | <<locked>> | 86% | 37,579 psi | 59% | 2897 fps | 95.6% |
| Bofors RP5 | <<locked>> | 80% | 39,508 psi | 62% | 2923 fps | 97.1% |
| Bofors RP7 | <<locked>> | 80% | 53,925 psi | 85% | 3117 fps | 99.9% |
| Hodgdon H1000 | <<locked>> | 84% | 36,158 psi | 57% | 2838 fps | 95.4% |
| Hodgdon H414 | <<locked>> | 80% | 53,867 psi | 84% | 3176 fps | 100% |
| Hodgdon H4831 | <<locked>> | 80% | 41,452 psi | 65% | 2917 fps | 95.6% |
| Hodgdon H4831 SC | <<locked>> | 80% | 40,814 psi | 64% | 2904 fps | 95.4% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 47,108 psi | 74% | 2989 fps | 100% |
| Hodgdon Retumbo | 73.1 gr | 82% | 34,519 psi | 54% | 2881 fps | 95.9% |
| Hodgdon TrailBoss | <<locked>> | 80% | 28,079 psi | 44% | 1844 fps | 100% |
| IMR 4350 | <<locked>> | 80% | 49,211 psi | 77% | 3045 fps | 99.6% |
| IMR 4831 | <<locked>> | 80% | 49,400 psi | 77% | 3051 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 80% | 42,844 psi | 67% | 2920 fps | 96.3% |
| IMR 7828 SSC | <<locked>> | 80% | 37,608 psi | 59% | 2890 fps | 95% |
| IMR 8133 Enduron | <<locked>> | 94% | 38,450 psi | 60% | 2940 fps | 95.8% |
| Lovex S065 | <<locked>> | 80% | 52,881 psi | 83% | 3087 fps | 100% |
| Lovex S070 | <<locked>> | 80% | 51,184 psi | 80% | 3077 fps | 99.9% |
| Lovex S071 | <<locked>> | 80% | 33,982 psi | 53% | 2713 fps | 97.7% |
| Norma 204 | <<locked>> | 80% | 49,806 psi | 78% | 3094 fps | 99% |
| Norma 217 | <<locked>> | 88% | 31,473 psi | 49% | 2769 fps | 95.1% |
| Norma MRP | <<locked>> | 80% | 41,727 psi | 65% | 3002 fps | 98.8% |
| Norma URP | <<locked>> | 80% | 50,836 psi | 80% | 3097 fps | 100% |
| Ramshot Grand | <<locked>> | 80% | 37,405 psi | 59% | 2897 fps | 95.4% |
| Ramshot Hunter | <<locked>> | 80% | 49,821 psi | 78% | 3100 fps | 100% |
| Ramshot Magnum | <<locked>> | 80% | 33,446 psi | 52% | 2762 fps | 95.9% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 28,819 psi | 45% | 1890 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 52,518 psi | 82% | 3140 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 50,792 psi | 80% | 3163 fps | 100% |
| ReloadSwiss RS 76 | 76.3 gr | 80% | 31,372 psi | 49% | 2776 fps | 95.6% |
| ReloadSwiss RS 80 | 86.5 gr | 90% | 41,292 psi | 65% | 3018 fps | 95.3% |
| Rottweil R 904 | <<locked>> | 80% | 44,585 psi | 70% | 2963 fps | 97.3% |
| Rottweil R 905 | <<locked>> | 80% | 43,062 psi | 67% | 2969 fps | 98.1% |
| Rottweil R 907 | <<locked>> | 80% | 53,925 psi | 85% | 3117 fps | 99.9% |
| Shooters World Long Rifle | <<locked>> | 80% | 52,881 psi | 83% | 3087 fps | 100% |
| Shooters World SW4350 | <<locked>> | 80% | 51,184 psi | 80% | 3077 fps | 99.9% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 51,779 psi | 81% | 3031 fps | 99.9% |
| SNPE Vectan Tubal 8000 | <<locked>> | 80% | 42,714 psi | 67% | 2963 fps | 98% |
| Somchem S361 | <<locked>> | 80% | 45,469 psi | 71% | 2949 fps | 96.9% |
| Somchem S365 | <<locked>> | 80% | 48,356 psi | 76% | 3048 fps | 100% |
| Somchem S385 | <<locked>> | 80% | 43,555 psi | 68% | 2946 fps | 98.8% |
| Vihtavuori N160 | <<locked>> | 80% | 52,301 psi | 82% | 3091 fps | 100% |
| Vihtavuori N165 | <<locked>> | 80% | 37,869 psi | 59% | 2808 fps | 97.2% |
| Vihtavuori N550 | <<locked>> | 80% | 51,590 psi | 81% | 3091 fps | 100% |
| Vihtavuori N555 | <<locked>> | 80% | 42,583 psi | 67% | 2956 fps | 100% |
| Vihtavuori N560 | <<locked>> | 80% | 41,611 psi | 65% | 2992 fps | 95.9% |
| Vihtavuori N565 | <<locked>> | 84% | 39,552 psi | 62% | 2920 fps | 95.4% |
| Vihtavuori N568 | <<locked>> | 90% | 42,656 psi | 67% | 3038 fps | 95.1% |
| Vihtavuori N570 | <<locked>> | 96% | 50,140 psi | 79% | 3235 fps | 95.3% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 51,692 psi | 81% | 3038 fps | 100% |
| Winchester 760 | <<locked>> | 80% | 53,867 psi | 84% | 3176 fps | 100% |
| Winchester StaBALL HD | <<locked>> | 80% | 35,317 psi | 55% | 2917 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 80% | 39,900 psi | 63% | 2864 fps | 97.2% |
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 70 powders for 7-.300 Norma Mag. loaded with the .284 | 140gr | Nosler Solid Base. Hodgdon Retumbo delivers the highest muzzle velocity at 3,373 fps; across all powders the maximum-charge window runs from 2,057 fps to 3,373 fps. ADI AR 2217 gives the best case fill at 100 %, and 70 of the 70 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (440 MPa), the top charges use 59–90 %, leaving at least 10 % headroom. The 140.0 gr projectile in 0.284" calls for a 1:12.5 twist; slower twists will usually not stabilise this weight. ADI AR 2217, ADI AR 2225, Alliant Reloder-33 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 Retumbo, ReloadSwiss RS 76, ReloadSwiss RS 80 rank at the top here: for 7-.300 Norma Mag. with the .284 | 140gr | Nosler Solid Base 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.