Load Specifications
Load data in caliber .270 Weath. Mag. with .277 | 140gr | Berger VLD Hunting bullet and 82 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Vihtavuori N560, Norma MRP and Accurate MAGPRO.
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 3100 | <<locked>> | 96% | 54,955 psi | 86% | 3018 fps | 100% |
| Accurate 4350 | <<locked>> | 88% | 56,434 psi | 88% | 3058 fps | 100% |
| Accurate MAGPRO | <<locked>> | 96% | 57,493 psi | 90% | 3179 fps | 98% |
| ADI AR 2208 | <<locked>> | 82% | 54,491 psi | 85% | 2966 fps | 100% |
| ADI AR 2209 | <<locked>> | 94% | 57,334 psi | 90% | 3114 fps | 99.4% |
| ADI AR 2213 | <<locked>> | 96% | 54,926 psi | 86% | 3114 fps | 98.4% |
| ADI AR 2217ᴾ | <<locked>> | 100% | 46,006 psi | 72% | 2936 fps | 96.8% |
| ADI AR 2225ᴾ | <<locked>> | 100% | 40,814 psi | 64% | 2894 fps | 98.5% |
| Alliant Power Pro Varmint | <<locked>> | 94% | 57,682 psi | 90% | 3114 fps | 99.4% |
| Alliant Reloder- TS 15.5 | <<locked>> | 82% | 55,593 psi | 87% | 2989 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 90% | 57,246 psi | 90% | 3117 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 84% | 54,723 psi | 86% | 3077 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 94% | 56,927 psi | 89% | 3104 fps | 99.4% |
| Alliant Reloder-22 | <<locked>> | 96% | 54,679 psi | 86% | 3110 fps | 99.3% |
| Alliant Reloder-23 | <<locked>> | 98% | 55,666 psi | 87% | 3084 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 51,503 psi | 81% | 3087 fps | 100% |
| Alliant Reloder-26 | <<locked>> | 94% | 56,289 psi | 88% | 3179 fps | 100% |
| Baschieri & Pellagri 109 | <<locked>> | 98% | 57,188 psi | 90% | 3071 fps | 96% |
| Bofors RP15ᴾ | <<locked>> | 100% | 57,334 psi | 90% | 3153 fps | 99.5% |
| Bofors RP3 | <<locked>> | 82% | 56,840 psi | 89% | 3009 fps | 100% |
| Bofors RP30ᴾ | <<locked>> | 100% | 47,514 psi | 74% | 3015 fps | 97.7% |
| Bofors RP5 | <<locked>> | 96% | 54,679 psi | 86% | 3110 fps | 99.3% |
| Bofors RP7 | <<locked>> | 86% | 55,753 psi | 87% | 3005 fps | 99.7% |
| Hodgdon H1000ᴾ | <<locked>> | 100% | 50,633 psi | 79% | 3031 fps | 98.4% |
| Hodgdon H380 | <<locked>> | 82% | 56,898 psi | 89% | 3031 fps | 100% |
| Hodgdon H414 | <<locked>> | 86% | 54,621 psi | 86% | 3058 fps | 99.8% |
| Hodgdon H4350 | <<locked>> | 86% | 57,464 psi | 90% | 3071 fps | 99.5% |
| Hodgdon H4831 | <<locked>> | 94% | 55,158 psi | 86% | 3054 fps | 97.8% |
| Hodgdon H4831 SC | <<locked>> | 96% | 57,653 psi | 90% | 3094 fps | 98.2% |
| Hodgdon Hybrid 100V | <<locked>> | 92% | 57,537 psi | 90% | 3028 fps | 100% |
| Hodgdon Retumboᴾ | <<locked>> | 100% | 50,343 psi | 79% | 3146 fps | 99.5% |
| Hodgdon Superformance | <<locked>> | 86% | 55,056 psi | 86% | 3097 fps | 99.8% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,796 psi | 58% | 1900 fps | 100% |
| IMR 4064 | <<locked>> | 82% | 57,392 psi | 90% | 2999 fps | 100% |
| IMR 4350 | <<locked>> | 90% | 57,188 psi | 90% | 3041 fps | 99.8% |
| IMR 4451 Enduron | <<locked>> | 86% | 57,276 psi | 90% | 3031 fps | 99.9% |
| IMR 4831 | <<locked>> | 90% | 56,826 psi | 89% | 3048 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 94% | 56,289 psi | 88% | 3038 fps | 98.1% |
| IMR 7828 SSC | <<locked>> | 98% | 56,536 psi | 89% | 3153 fps | 98.7% |
| Lovex S062 | <<locked>> | 82% | 57,740 psi | 90% | 2989 fps | 100% |
| Lovex S065 | <<locked>> | 88% | 57,624 psi | 90% | 3025 fps | 100% |
| Lovex S070 | <<locked>> | 88% | 55,825 psi | 87% | 3022 fps | 99.9% |
| Lovex S071ᴾ | <<locked>> | 100% | 52,272 psi | 82% | 2976 fps | 99.9% |
| Norma 204 | <<locked>> | 88% | 54,418 psi | 85% | 3041 fps | 99% |
| Norma 217ᴾ | <<locked>> | 100% | 36,303 psi | 57% | 2808 fps | 96.4% |
| Norma MRP | <<locked>> | 94% | 54,389 psi | 85% | 3133 fps | 99.9% |
| Norma URP | <<locked>> | 88% | 55,013 psi | 86% | 3041 fps | 100% |
| Ramshot Grand | <<locked>> | 98% | 57,217 psi | 90% | 3173 fps | 99.1% |
| Ramshot Hunter | <<locked>> | 90% | 57,450 psi | 90% | 3104 fps | 100% |
| Ramshot Magnumᴾ | <<locked>> | 100% | 55,288 psi | 87% | 3100 fps | 99.7% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 37,681 psi | 59% | 1946 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 82% | 56,478 psi | 89% | 3015 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 82% | 54,230 psi | 85% | 3064 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 88% | 56,492 psi | 89% | 3081 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 88% | 54,853 psi | 86% | 3114 fps | 100% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 50,995 psi | 80% | 3146 fps | 99.9% |
| Rottweil R 903 | <<locked>> | 84% | 56,985 psi | 89% | 3005 fps | 100% |
| Rottweil R 904 | <<locked>> | 92% | 55,129 psi | 86% | 3025 fps | 98.4% |
| Rottweil R 905 | <<locked>> | 94% | 56,318 psi | 88% | 3091 fps | 99.4% |
| Rottweil R 907 | <<locked>> | 86% | 55,753 psi | 87% | 3005 fps | 99.7% |
| Shooters World Long Rifle | <<locked>> | 88% | 57,624 psi | 90% | 3025 fps | 100% |
| Shooters World Precision | <<locked>> | 82% | 57,740 psi | 90% | 2989 fps | 100% |
| Shooters World SW4350 | <<locked>> | 88% | 55,825 psi | 87% | 3022 fps | 99.9% |
| SNPE Vectan SP 11 | <<locked>> | 82% | 54,839 psi | 86% | 3015 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 84% | 57,029 psi | 89% | 2874 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 88% | 57,261 psi | 90% | 2979 fps | 99.9% |
| SNPE Vectan Tubal 8000 | <<locked>> | 94% | 55,869 psi | 88% | 3087 fps | 99.4% |
| Somchem S355 | <<locked>> | 84% | 56,710 psi | 89% | 3002 fps | 100% |
| Somchem S361 | <<locked>> | 92% | 56,797 psi | 89% | 3015 fps | 98% |
| Somchem S365 | <<locked>> | 90% | 55,143 psi | 86% | 3045 fps | 100% |
| Somchem S385 | <<locked>> | 94% | 56,666 psi | 89% | 3058 fps | 99.7% |
| Vihtavuori N150 | <<locked>> | 84% | 54,404 psi | 85% | 2920 fps | 100% |
| Vihtavuori N160 | <<locked>> | 88% | 56,753 psi | 89% | 3031 fps | 100% |
| Vihtavuori N165 | <<locked>> | 98% | 56,289 psi | 88% | 3038 fps | 99.6% |
| Vihtavuori N550 | <<locked>> | 88% | 56,159 psi | 88% | 3041 fps | 100% |
| Vihtavuori N555 | <<locked>> | 94% | 54,520 psi | 85% | 3061 fps | 100% |
| Vihtavuori N560 | <<locked>> | 94% | 54,346 psi | 85% | 3127 fps | 98% |
| Vihtavuori N565ᴾ | <<locked>> | 100% | 53,998 psi | 85% | 3100 fps | 98.1% |
| Winchester 6.5 StaBALL | <<locked>> | 88% | 56,449 psi | 88% | 2989 fps | 100% |
| Winchester 760 | <<locked>> | 86% | 54,911 psi | 86% | 3061 fps | 99.8% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 56,898 psi | 89% | 3225 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 96% | 56,869 psi | 89% | 3054 fps | 99.3% |
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% | 31,952 psi | 50% | 2559 fps | 96.1% |
| Accurate 4350 | <<locked>> | 80% | 43,076 psi | 68% | 2831 fps | 99.8% |
| Accurate MAGPRO | 65.4 gr | 90% | 46,383 psi | 73% | 2979 fps | 95.5% |
| ADI AR 2208 | <<locked>> | 80% | 51,285 psi | 80% | 2917 fps | 100% |
| ADI AR 2209 | <<locked>> | 82% | 38,450 psi | 60% | 2749 fps | 95.5% |
| ADI AR 2213 | <<locked>> | 88% | 42,003 psi | 66% | 2858 fps | 95.2% |
| ADI AR 2217 | <<locked>> | 98% | 43,134 psi | 68% | 2874 fps | 95.9% |
| ADI AR 2225 | <<locked>> | 94% | 33,692 psi | 53% | 2703 fps | 95.7% |
| Alliant Power Pro Varmint | <<locked>> | 82% | 38,725 psi | 61% | 2749 fps | 95.6% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 52,315 psi | 82% | 2940 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 80% | 41,379 psi | 65% | 2838 fps | 99.9% |
| Alliant Reloder-17 | <<locked>> | 80% | 47,630 psi | 75% | 2963 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 82% | 38,363 psi | 60% | 2743 fps | 95.6% |
| Alliant Reloder-22 | <<locked>> | 84% | 36,434 psi | 57% | 2740 fps | 95% |
| Alliant Reloder-23 | <<locked>> | 80% | 30,690 psi | 48% | 2592 fps | 99% |
| Alliant Reloder-25 | <<locked>> | 82% | 28,616 psi | 45% | 2543 fps | 95% |
| Alliant Reloder-26 | <<locked>> | 80% | 33,243 psi | 52% | 2723 fps | 98.1% |
| Baschieri & Pellagri 109 | <<locked>> | 96% | 53,853 psi | 84% | 3012 fps | 95.2% |
| Bofors RP15 | <<locked>> | 88% | 38,696 psi | 61% | 2795 fps | 95.7% |
| Bofors RP3 | <<locked>> | 80% | 53,156 psi | 83% | 2956 fps | 100% |
| Bofors RP30 | <<locked>> | 94% | 38,740 psi | 61% | 2828 fps | 95% |
| Bofors RP5 | <<locked>> | 84% | 36,434 psi | 57% | 2740 fps | 95% |
| Bofors RP7 | <<locked>> | 80% | 46,238 psi | 72% | 2835 fps | 98.5% |
| Hodgdon H1000 | <<locked>> | 94% | 41,350 psi | 65% | 2841 fps | 96% |
| Hodgdon H380 | <<locked>> | 80% | 53,272 psi | 83% | 2976 fps | 100% |
| Hodgdon H414 | <<locked>> | 80% | 44,730 psi | 70% | 2877 fps | 98.7% |
| Hodgdon H4350 | <<locked>> | 80% | 47,456 psi | 74% | 2894 fps | 98.2% |
| Hodgdon H4831 | <<locked>> | 88% | 44,918 psi | 70% | 2867 fps | 95.5% |
| Hodgdon H4831 SC | <<locked>> | 88% | 44,063 psi | 69% | 2848 fps | 95.2% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 38,914 psi | 61% | 2717 fps | 100% |
| Hodgdon Retumbo | <<locked>> | 90% | 36,332 psi | 57% | 2815 fps | 95.4% |
| Hodgdon Superformance | <<locked>> | 80% | 43,947 psi | 69% | 2897 fps | 98.4% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,543 psi | 43% | 1699 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 53,969 psi | 85% | 2949 fps | 100% |
| IMR 4350 | <<locked>> | 80% | 41,727 psi | 65% | 2762 fps | 97.6% |
| IMR 4451 Enduron | <<locked>> | 80% | 47,471 psi | 74% | 2861 fps | 99% |
| IMR 4831 | <<locked>> | 80% | 41,017 psi | 64% | 2772 fps | 99.7% |
| IMR 4955 Enduron | <<locked>> | 86% | 43,859 psi | 69% | 2808 fps | 95.4% |
| IMR 7828 SSC | <<locked>> | 90% | 43,105 psi | 68% | 2897 fps | 95.7% |
| Lovex S062 | <<locked>> | 80% | 54,375 psi | 85% | 2940 fps | 100% |
| Lovex S065 | <<locked>> | 80% | 45,107 psi | 71% | 2812 fps | 99.5% |
| Lovex S070 | <<locked>> | 80% | 43,439 psi | 68% | 2799 fps | 98.6% |
| Lovex S071 | <<locked>> | 84% | 31,343 psi | 49% | 2539 fps | 95.9% |
| Norma 204 | <<locked>> | 80% | 41,553 psi | 65% | 2799 fps | 96.4% |
| Norma 217 | <<locked>> | 98% | 34,084 psi | 53% | 2746 fps | 95.3% |
| Norma MRP | 57.1 gr | 80% | 33,286 psi | 52% | 2687 fps | 95.3% |
| Norma URP | <<locked>> | 80% | 42,424 psi | 66% | 2818 fps | 99.7% |
| Ramshot Grand | <<locked>> | 88% | 39,856 psi | 62% | 2838 fps | 95% |
| Ramshot Hunter | <<locked>> | 80% | 41,263 psi | 65% | 2812 fps | 98.7% |
| Ramshot Magnum | <<locked>> | 88% | 35,592 psi | 56% | 2710 fps | 95.6% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 28,210 psi | 44% | 1742 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 53,011 psi | 83% | 2959 fps | 99.9% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 50,546 psi | 79% | 3009 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 42,902 psi | 67% | 2848 fps | 99.7% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 41,104 psi | 64% | 2861 fps | 99.5% |
| ReloadSwiss RS 76 | <<locked>> | 88% | 33,127 psi | 52% | 2717 fps | 95.1% |
| Rottweil R 903 | <<locked>> | 80% | 50,053 psi | 78% | 2900 fps | 100% |
| Rottweil R 904 | <<locked>> | 84% | 42,627 psi | 67% | 2792 fps | 95.6% |
| Rottweil R 905 | <<locked>> | 82% | 37,652 psi | 59% | 2730 fps | 95.5% |
| Rottweil R 907 | <<locked>> | 80% | 46,238 psi | 72% | 2835 fps | 98.5% |
| Shooters World Long Rifle | <<locked>> | 80% | 45,107 psi | 71% | 2812 fps | 99.5% |
| Shooters World Precision | <<locked>> | 80% | 54,375 psi | 85% | 2940 fps | 100% |
| Shooters World SW4350 | <<locked>> | 80% | 43,439 psi | 68% | 2799 fps | 98.6% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 51,387 psi | 81% | 2959 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 50,415 psi | 79% | 2779 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 44,164 psi | 69% | 2756 fps | 98.6% |
| SNPE Vectan Tubal 8000 | <<locked>> | 82% | 37,318 psi | 58% | 2723 fps | 95.4% |
| Somchem S355 | <<locked>> | 80% | 49,980 psi | 78% | 2897 fps | 100% |
| Somchem S361 | <<locked>> | 84% | 43,598 psi | 68% | 2779 fps | 95.1% |
| Somchem S365 | <<locked>> | 80% | 39,189 psi | 61% | 2772 fps | 100% |
| Somchem S385 | <<locked>> | 80% | 35,897 psi | 56% | 2654 fps | 95.8% |
| Vihtavuori N150 | <<locked>> | 80% | 47,834 psi | 75% | 2818 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 43,830 psi | 69% | 2815 fps | 99.8% |
| Vihtavuori N165 | <<locked>> | 84% | 35,360 psi | 55% | 2638 fps | 95.2% |
| Vihtavuori N550 | <<locked>> | 80% | 43,250 psi | 68% | 2815 fps | 99.7% |
| Vihtavuori N555 | <<locked>> | 80% | 34,316 psi | 54% | 2667 fps | 98.9% |
| Vihtavuori N560 | 62.8 gr | 88% | 44,324 psi | 69% | 2933 fps | 95.6% |
| Vihtavuori N565 | <<locked>> | 94% | 43,990 psi | 69% | 2913 fps | 95.9% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 42,728 psi | 67% | 2772 fps | 100% |
| Winchester 760 | <<locked>> | 80% | 44,947 psi | 70% | 2881 fps | 98.8% |
| Winchester StaBALL HD | <<locked>> | 80% | 27,253 psi | 43% | 2592 fps | 98.9% |
| Winchester Supreme 780 | <<locked>> | 84% | 37,478 psi | 59% | 2694 fps | 95.3% |
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 82 powders for .270 Weath. Mag. loaded with the .277 | 140gr | Berger VLD Hunting. Winchester StaBALL HD delivers the highest muzzle velocity at 3,225 fps; across all powders the maximum-charge window runs from 1,900 fps to 3,225 fps. ADI AR 2217 gives the best case fill at 100 %, and 82 of the 82 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 140.0 gr projectile in 0.277" calls for a 1:10.5 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. Vihtavuori N560, Norma MRP, Accurate MAGPRO rank at the top here: for .270 Weath. Mag. with the .277 | 140gr | Berger VLD 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.