Load Specifications
Load data in caliber .270 Weath. Mag. with .270 | 120gr | MRR Green Hunting bullet and 90 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Alliant Reloder-26, Norma MRP 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: 26"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2495 | <<locked>> | 82% | 56,637 psi | 89% | 3127 fps | 100% |
| Accurate 2700 | <<locked>> | 82% | 54,041 psi | 85% | 3140 fps | 98.5% |
| Accurate 3100ᴾ | <<locked>> | 100% | 56,594 psi | 89% | 3248 fps | 99.8% |
| Accurate 4064 | <<locked>> | 84% | 56,942 psi | 89% | 3182 fps | 100% |
| Accurate 4350 | <<locked>> | 90% | 54,534 psi | 85% | 3245 fps | 100% |
| Accurate MAGPRO | <<locked>> | 98% | 54,955 psi | 86% | 3337 fps | 95.9% |
| ADI AR 2208 | <<locked>> | 86% | 56,753 psi | 89% | 3219 fps | 100% |
| ADI AR 2209 | <<locked>> | 96% | 55,506 psi | 87% | 3291 fps | 98.1% |
| ADI AR 2213ᴾ | <<locked>> | 100% | 57,000 psi | 89% | 3346 fps | 97.3% |
| Alliant Power Pro 2000-MR | <<locked>> | 82% | 56,449 psi | 88% | 3356 fps | 100% |
| Alliant Reloder- TS 15.5 | <<locked>> | 84% | 54,433 psi | 85% | 3192 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 82% | 54,418 psi | 85% | 3212 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 92% | 55,143 psi | 86% | 3307 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 88% | 56,623 psi | 89% | 3333 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 96% | 54,998 psi | 86% | 3278 fps | 98.1% |
| Alliant Reloder-22ᴾ | <<locked>> | 100% | 56,057 psi | 88% | 3340 fps | 98.5% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 52,910 psi | 83% | 3261 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 46,079 psi | 72% | 3182 fps | 99.3% |
| Alliant Reloder-26 | <<locked>> | 98% | 57,508 psi | 90% | 3422 fps | 100% |
| Bofors RP15ᴾ | <<locked>> | 100% | 51,372 psi | 81% | 3251 fps | 97.5% |
| Bofors RP3 | <<locked>> | 84% | 55,100 psi | 86% | 3205 fps | 100% |
| Bofors RP5ᴾ | <<locked>> | 100% | 56,057 psi | 88% | 3340 fps | 98.5% |
| Bofors RP7 | <<locked>> | 88% | 54,665 psi | 86% | 3192 fps | 98.7% |
| Hodgdon H380 | <<locked>> | 84% | 55,593 psi | 87% | 3225 fps | 100% |
| Hodgdon H414 | <<locked>> | 90% | 56,579 psi | 89% | 3301 fps | 99.4% |
| Hodgdon H4350 | <<locked>> | 88% | 56,246 psi | 88% | 3255 fps | 98.5% |
| Hodgdon H4831 | <<locked>> | 98% | 57,276 psi | 90% | 3284 fps | 96.7% |
| Hodgdon H4831 SC | <<locked>> | 98% | 55,883 psi | 88% | 3261 fps | 96.4% |
| Hodgdon Hybrid 100V | <<locked>> | 94% | 55,506 psi | 87% | 3222 fps | 100% |
| Hodgdon LEVERevolution | <<locked>> | 82% | 56,956 psi | 89% | 3264 fps | 100% |
| Hodgdon Retumboᴾ | <<locked>> | 100% | 44,962 psi | 70% | 3212 fps | 96.7% |
| Hodgdon Superformance | <<locked>> | 90% | 57,246 psi | 90% | 3343 fps | 99.3% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,506 psi | 57% | 2047 fps | 100% |
| Hodgdon VARGET | <<locked>> | 82% | 57,174 psi | 90% | 3225 fps | 100% |
| IMR 4064 | <<locked>> | 84% | 56,304 psi | 88% | 3202 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 82% | 55,376 psi | 87% | 3182 fps | 99.2% |
| IMR 4350 | <<locked>> | 92% | 55,593 psi | 87% | 3222 fps | 98.9% |
| IMR 4451 Enduron | <<locked>> | 88% | 56,275 psi | 88% | 3222 fps | 99.2% |
| IMR 4831 | <<locked>> | 92% | 55,013 psi | 86% | 3238 fps | 100% |
| IMR 4895 | <<locked>> | 82% | 55,811 psi | 87% | 3245 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 96% | 54,897 psi | 86% | 3209 fps | 96.4% |
| IMR 7828 SSCᴾ | <<locked>> | 100% | 54,476 psi | 85% | 3317 fps | 96.9% |
| Lovex S060 | <<locked>> | 82% | 57,725 psi | 90% | 3186 fps | 100% |
| Lovex S062 | <<locked>> | 84% | 56,507 psi | 89% | 3196 fps | 100% |
| Lovex S065 | <<locked>> | 90% | 56,304 psi | 88% | 3215 fps | 99.8% |
| Lovex S070 | <<locked>> | 90% | 54,331 psi | 85% | 3202 fps | 99.2% |
| Lovex S071ᴾ | <<locked>> | 100% | 46,862 psi | 73% | 3081 fps | 98.7% |
| Norma 203B | <<locked>> | 84% | 57,348 psi | 90% | 3258 fps | 100% |
| Norma 204 | <<locked>> | 92% | 56,710 psi | 89% | 3284 fps | 98.2% |
| Norma MRP | <<locked>> | 98% | 55,753 psi | 87% | 3369 fps | 99.4% |
| Norma URP | <<locked>> | 92% | 56,811 psi | 89% | 3287 fps | 100% |
| Ramshot Big Game | <<locked>> | 82% | 54,505 psi | 85% | 3222 fps | 100% |
| Ramshot Grandᴾ | <<locked>> | 100% | 54,998 psi | 86% | 3333 fps | 97.4% |
| Ramshot Hunter | <<locked>> | 92% | 55,738 psi | 87% | 3287 fps | 99.7% |
| Ramshot Magnumᴾ | <<locked>> | 100% | 49,153 psi | 77% | 3189 fps | 97.9% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 37,057 psi | 58% | 2093 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 84% | 55,492 psi | 87% | 3209 fps | 99.5% |
| ReloadSwiss RS 60 | <<locked>> | 86% | 55,912 psi | 88% | 3323 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 90% | 54,505 psi | 85% | 3268 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 92% | 56,869 psi | 89% | 3363 fps | 100% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 45,353 psi | 71% | 3212 fps | 98% |
| Rottweil R 902 | <<locked>> | 82% | 55,129 psi | 86% | 3156 fps | 100% |
| Rottweil R 903 | <<locked>> | 86% | 55,477 psi | 87% | 3205 fps | 100% |
| Rottweil R 904 | <<locked>> | 96% | 57,072 psi | 89% | 3255 fps | 97.4% |
| Rottweil R 905 | <<locked>> | 96% | 54,244 psi | 85% | 3261 fps | 98.1% |
| Rottweil R 907 | <<locked>> | 88% | 54,665 psi | 86% | 3192 fps | 98.7% |
| Shooters World Long Rifle | <<locked>> | 90% | 56,304 psi | 88% | 3215 fps | 99.8% |
| Shooters World Precision | <<locked>> | 84% | 56,507 psi | 89% | 3196 fps | 100% |
| Shooters World SW4350 | <<locked>> | 90% | 54,331 psi | 85% | 3202 fps | 99.2% |
| SNPE Vectan SP 11 | <<locked>> | 86% | 57,101 psi | 89% | 3271 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 86% | 56,202 psi | 88% | 3077 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 90% | 56,043 psi | 88% | 3163 fps | 99.3% |
| SNPE Vectan Tubal 8000 | <<locked>> | 98% | 57,261 psi | 90% | 3317 fps | 98.6% |
| Somchem S355 | <<locked>> | 86% | 55,245 psi | 87% | 3199 fps | 100% |
| Somchem S361 | <<locked>> | 94% | 55,288 psi | 87% | 3182 fps | 96.3% |
| Somchem S365 | <<locked>> | 94% | 56,304 psi | 88% | 3287 fps | 100% |
| Somchem S385 | <<locked>> | 96% | 54,868 psi | 86% | 3232 fps | 98.8% |
| Vihtavuori N135 | <<locked>> | 82% | 55,390 psi | 87% | 3110 fps | 100% |
| Vihtavuori N140 | <<locked>> | 82% | 55,651 psi | 87% | 3123 fps | 100% |
| Vihtavuori N150 | <<locked>> | 88% | 56,536 psi | 89% | 3166 fps | 100% |
| Vihtavuori N160 | <<locked>> | 90% | 55,259 psi | 87% | 3222 fps | 100% |
| Vihtavuori N165ᴾ | <<locked>> | 100% | 54,317 psi | 85% | 3205 fps | 98.5% |
| Vihtavuori N540 | <<locked>> | 84% | 57,522 psi | 90% | 3173 fps | 100% |
| Vihtavuori N550 | <<locked>> | 90% | 54,505 psi | 85% | 3225 fps | 100% |
| Vihtavuori N555 | <<locked>> | 98% | 55,448 psi | 87% | 3294 fps | 100% |
| Vihtavuori N560 | <<locked>> | 98% | 55,898 psi | 88% | 3353 fps | 96.8% |
| Winchester 6.5 StaBALL | <<locked>> | 90% | 55,042 psi | 86% | 3182 fps | 100% |
| Winchester 760 | <<locked>> | 90% | 56,826 psi | 89% | 3307 fps | 99.4% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 48,472 psi | 76% | 3333 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 98% | 54,955 psi | 86% | 3225 fps | 98% |
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 2495 | <<locked>> | 80% | 53,026 psi | 83% | 3071 fps | 100% |
| Accurate 2700 | <<locked>> | 80% | 50,459 psi | 79% | 3074 fps | 97.9% |
| Accurate 3100 | <<locked>> | 86% | 34,824 psi | 55% | 2812 fps | 95.4% |
| Accurate 4064 | <<locked>> | 80% | 50,198 psi | 79% | 3077 fps | 100% |
| Accurate 4350 | <<locked>> | 80% | 38,450 psi | 60% | 2927 fps | 98.2% |
| Accurate MAGPRO | <<locked>> | 96% | 51,111 psi | 80% | 3264 fps | 95% |
| ADI AR 2208 | <<locked>> | 80% | 47,239 psi | 74% | 3051 fps | 99.8% |
| ADI AR 2209 | <<locked>> | 88% | 42,670 psi | 67% | 3031 fps | 95% |
| ADI AR 2213 | <<locked>> | 96% | 49,777 psi | 78% | 3209 fps | 95.6% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 52,721 psi | 83% | 3291 fps | 100% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 47,819 psi | 75% | 3077 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 80% | 51,010 psi | 80% | 3153 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 80% | 37,391 psi | 59% | 2940 fps | 98.3% |
| Alliant Reloder-17 | <<locked>> | 80% | 42,656 psi | 67% | 3081 fps | 99.9% |
| Alliant Reloder-19 | <<locked>> | 88% | 42,279 psi | 66% | 3022 fps | 95% |
| Alliant Reloder-22 | <<locked>> | 92% | 42,786 psi | 67% | 3081 fps | 95.4% |
| Alliant Reloder-23 | <<locked>> | 80% | 27,441 psi | 43% | 2661 fps | 95.9% |
| Alliant Reloder-25 | <<locked>> | 90% | 33,373 psi | 52% | 2858 fps | 95.3% |
| Alliant Reloder-26 | 61.4 gr | 82% | 31,618 psi | 50% | 2848 fps | 95.4% |
| Bofors RP15 | <<locked>> | 94% | 42,192 psi | 66% | 3061 fps | 95% |
| Bofors RP3 | <<locked>> | 80% | 48,254 psi | 76% | 3091 fps | 100% |
| Bofors RP5 | <<locked>> | 92% | 42,786 psi | 67% | 3081 fps | 95.4% |
| Bofors RP7 | <<locked>> | 80% | 42,366 psi | 66% | 2946 fps | 96.2% |
| Hodgdon H380 | <<locked>> | 80% | 48,544 psi | 76% | 3100 fps | 99.5% |
| Hodgdon H414 | <<locked>> | 80% | 40,451 psi | 63% | 2979 fps | 96.2% |
| Hodgdon H4350 | <<locked>> | 80% | 43,221 psi | 68% | 2999 fps | 95.6% |
| Hodgdon H4831 | <<locked>> | 96% | 53,258 psi | 83% | 3215 fps | 95.8% |
| Hodgdon H4831 SC | <<locked>> | 96% | 52,214 psi | 82% | 3196 fps | 95.6% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 34,882 psi | 55% | 2818 fps | 98.8% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 53,084 psi | 83% | 3202 fps | 100% |
| Hodgdon Retumbo | <<locked>> | 98% | 42,090 psi | 66% | 3140 fps | 95.6% |
| Hodgdon Superformance | <<locked>> | 80% | 39,537 psi | 62% | 2989 fps | 95.6% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,253 psi | 43% | 1834 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 53,592 psi | 84% | 3166 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 49,647 psi | 78% | 3087 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 80% | 52,011 psi | 82% | 3123 fps | 98.7% |
| IMR 4350 | <<locked>> | 82% | 40,538 psi | 64% | 2920 fps | 95.6% |
| IMR 4451 Enduron | <<locked>> | 80% | 43,830 psi | 69% | 2982 fps | 97% |
| IMR 4831 | <<locked>> | 80% | 37,028 psi | 58% | 2874 fps | 97.9% |
| IMR 4895 | <<locked>> | 80% | 52,359 psi | 82% | 3186 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 94% | 51,474 psi | 81% | 3146 fps | 95.6% |
| IMR 7828 SSC | <<locked>> | 96% | 47,529 psi | 74% | 3176 fps | 95.1% |
| Lovex S060 | <<locked>> | 80% | 54,215 psi | 85% | 3130 fps | 100% |
| Lovex S062 | <<locked>> | 80% | 49,922 psi | 78% | 3084 fps | 100% |
| Lovex S065 | <<locked>> | 80% | 41,278 psi | 65% | 2923 fps | 97.7% |
| Lovex S070 | <<locked>> | 80% | 39,523 psi | 62% | 2900 fps | 96.2% |
| Lovex S071 | <<locked>> | 90% | 33,808 psi | 53% | 2782 fps | 95% |
| Norma 203B | <<locked>> | 80% | 50,386 psi | 79% | 3140 fps | 100% |
| Norma 204 | <<locked>> | 84% | 43,018 psi | 67% | 3018 fps | 95% |
| Norma MRP | 64 gr | 88% | 39,233 psi | 61% | 3028 fps | 95.8% |
| Norma URP | <<locked>> | 80% | 38,174 psi | 60% | 2920 fps | 98% |
| Ramshot Big Game | <<locked>> | 80% | 51,097 psi | 80% | 3163 fps | 100% |
| Ramshot Grand | <<locked>> | 96% | 47,500 psi | 74% | 3189 fps | 95.5% |
| Ramshot Hunter | <<locked>> | 80% | 37,014 psi | 58% | 2900 fps | 96% |
| Ramshot Magnum | <<locked>> | 96% | 42,453 psi | 67% | 3048 fps | 96.1% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,644 psi | 43% | 1873 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 48,646 psi | 76% | 3084 fps | 98.6% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 45,310 psi | 71% | 3140 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 38,334 psi | 60% | 2943 fps | 97.9% |
| ReloadSwiss RS 70 | 59.4 gr | 80% | 37,202 psi | 58% | 2953 fps | 97.3% |
| ReloadSwiss RS 76 | <<locked>> | 96% | 39,305 psi | 62% | 3054 fps | 95.8% |
| Rottweil R 902 | <<locked>> | 80% | 51,648 psi | 81% | 3097 fps | 100% |
| Rottweil R 903 | <<locked>> | 80% | 45,455 psi | 71% | 3031 fps | 100% |
| Rottweil R 904 | <<locked>> | 90% | 47,065 psi | 74% | 3071 fps | 95.1% |
| Rottweil R 905 | <<locked>> | 90% | 44,222 psi | 69% | 3064 fps | 95.8% |
| Rottweil R 907 | <<locked>> | 80% | 42,366 psi | 66% | 2946 fps | 96.2% |
| Shooters World Long Rifle | <<locked>> | 80% | 41,278 psi | 65% | 2923 fps | 97.7% |
| Shooters World Precision | <<locked>> | 80% | 49,922 psi | 78% | 3084 fps | 100% |
| Shooters World SW4350 | <<locked>> | 80% | 39,523 psi | 62% | 2900 fps | 96.2% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 46,572 psi | 73% | 3087 fps | 99.9% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 46,528 psi | 73% | 2930 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 40,350 psi | 63% | 2858 fps | 96.3% |
| SNPE Vectan Tubal 8000 | <<locked>> | 90% | 43,830 psi | 69% | 3061 fps | 95.7% |
| Somchem S355 | <<locked>> | 80% | 45,687 psi | 72% | 3028 fps | 100% |
| Somchem S361 | <<locked>> | 92% | 51,895 psi | 81% | 3123 fps | 95.5% |
| Somchem S365 | <<locked>> | 80% | 34,621 psi | 54% | 2871 fps | 99.6% |
| Somchem S385 | <<locked>> | 86% | 39,479 psi | 62% | 2923 fps | 95.3% |
| Vihtavuori N135 | <<locked>> | 80% | 52,054 psi | 82% | 3058 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 52,199 psi | 82% | 3071 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 43,627 psi | 68% | 2949 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 39,552 psi | 62% | 2920 fps | 98.4% |
| Vihtavuori N165 | <<locked>> | 92% | 41,510 psi | 65% | 2959 fps | 95.5% |
| Vihtavuori N540 | <<locked>> | 80% | 50,473 psi | 79% | 3061 fps | 100% |
| Vihtavuori N550 | <<locked>> | 80% | 39,030 psi | 61% | 2920 fps | 98.1% |
| Vihtavuori N555 | <<locked>> | 80% | 30,284 psi | 47% | 2743 fps | 96% |
| Vihtavuori N560 | <<locked>> | 94% | 48,689 psi | 76% | 3219 fps | 95% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 38,870 psi | 61% | 2887 fps | 99.7% |
| Winchester 760 | <<locked>> | 80% | 40,451 psi | 63% | 2979 fps | 96.2% |
| Winchester StaBALL HD | <<locked>> | 82% | 26,005 psi | 41% | 2687 fps | 95.7% |
| Winchester Supreme 780 | <<locked>> | 92% | 44,425 psi | 70% | 3028 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 90 powders for .270 Weath. Mag. loaded with the .270 | 120gr | MRR Green Hunting. Alliant Reloder-26 delivers the highest muzzle velocity at 3,422 fps; across all powders the maximum-charge window runs from 2,047 fps to 3,422 fps. Accurate 3100 gives the best case fill at 100 %, and 90 of the 90 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 0.277" calls for a 1:11.5 twist; slower twists will usually not stabilise this weight. Accurate 3100, ADI AR 2213, Alliant Reloder-22 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. Alliant Reloder-26, Norma MRP, ReloadSwiss RS 70 rank at the top here: for .270 Weath. Mag. with the .270 | 120gr | MRR Green Hunting 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.