Load Specifications
Load data in caliber .270 WSM with .276 | 130gr | Frontier PH HPFB bullet and 75 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Norma MRP, Alliant Reloder-26 and Winchester StaBALL HD.
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: 24"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 3100 | <<locked>> | 96% | 56,956 psi | 89% | 3061 fps | 99.8% |
| Accurate 4350 | <<locked>> | 86% | 54,723 psi | 86% | 3048 fps | 100% |
| Accurate High Country | <<locked>> | 94% | 56,753 psi | 89% | 3192 fps | 97.6% |
| ADI AR 2208 | <<locked>> | 82% | 55,230 psi | 87% | 2999 fps | 100% |
| ADI AR 2209 | <<locked>> | 94% | 57,450 psi | 90% | 3130 fps | 98.5% |
| ADI AR 2213 | <<locked>> | 96% | 55,187 psi | 86% | 3123 fps | 97% |
| ADI AR 2225ᴾ | <<locked>> | 100% | 42,511 psi | 67% | 2917 fps | 97.2% |
| Alliant Power Pro Varmint | <<locked>> | 92% | 54,418 psi | 85% | 3071 fps | 98% |
| Alliant Power Pro Varmint | <<locked>> | 92% | 54,418 psi | 85% | 3071 fps | 98% |
| Alliant Reloder- TS 15.5 | <<locked>> | 82% | 56,869 psi | 89% | 3031 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 90% | 57,319 psi | 90% | 3143 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 84% | 55,100 psi | 86% | 3110 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 94% | 57,014 psi | 89% | 3117 fps | 98.5% |
| Alliant Reloder-22 | <<locked>> | 96% | 55,143 psi | 86% | 3130 fps | 98.3% |
| Alliant Reloder-23 | <<locked>> | 98% | 56,217 psi | 88% | 3117 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 51,996 psi | 81% | 3107 fps | 99.9% |
| Alliant Reloder-26 | <<locked>> | 94% | 56,565 psi | 89% | 3209 fps | 100% |
| Bofors RP15 | <<locked>> | 98% | 54,447 psi | 85% | 3114 fps | 98.1% |
| Bofors RP30ᴾ | <<locked>> | 100% | 48,443 psi | 76% | 3035 fps | 96.2% |
| Bofors RP5 | <<locked>> | 96% | 55,143 psi | 86% | 3130 fps | 98.3% |
| Bofors RP7 | <<locked>> | 86% | 56,956 psi | 89% | 3035 fps | 99% |
| Hodgdon H1000ᴾ | <<locked>> | 100% | 51,474 psi | 81% | 3041 fps | 97% |
| Hodgdon H414 | <<locked>> | 86% | 55,477 psi | 87% | 3084 fps | 99.3% |
| Hodgdon H4350 | <<locked>> | 84% | 54,549 psi | 85% | 3031 fps | 98.3% |
| Hodgdon H4831 | <<locked>> | 94% | 55,376 psi | 87% | 3064 fps | 96.3% |
| Hodgdon H4831 SC | <<locked>> | 94% | 54,346 psi | 85% | 3045 fps | 96.1% |
| Hodgdon Hybrid 100V | <<locked>> | 90% | 54,781 psi | 86% | 3015 fps | 100% |
| Hodgdon Retumboᴾ | <<locked>> | 100% | 51,198 psi | 80% | 3159 fps | 98.4% |
| Hodgdon Superformance | <<locked>> | 86% | 55,245 psi | 87% | 3114 fps | 99.1% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 37,246 psi | 58% | 1926 fps | 100% |
| IMR 4350 | <<locked>> | 90% | 57,682 psi | 90% | 3064 fps | 99.2% |
| IMR 4451 Enduron | <<locked>> | 84% | 54,404 psi | 85% | 2995 fps | 99% |
| IMR 4831 | <<locked>> | 88% | 54,723 psi | 86% | 3035 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 94% | 56,710 psi | 89% | 3051 fps | 96.8% |
| IMR 7828 SSC | <<locked>> | 98% | 56,739 psi | 89% | 3163 fps | 97.4% |
| Lovex S065 | <<locked>> | 86% | 55,724 psi | 87% | 3009 fps | 99.8% |
| Lovex S070 | <<locked>> | 88% | 57,159 psi | 90% | 3054 fps | 99.5% |
| Lovex S071ᴾ | <<locked>> | 100% | 54,447 psi | 85% | 3022 fps | 99.6% |
| Norma 204 | <<locked>> | 88% | 55,158 psi | 86% | 3064 fps | 97.9% |
| Norma MRP | <<locked>> | 94% | 54,839 psi | 86% | 3159 fps | 99.3% |
| Norma URP | <<locked>> | 88% | 55,869 psi | 88% | 3074 fps | 100% |
| Ramshot Grand | <<locked>> | 98% | 57,232 psi | 90% | 3179 fps | 97.8% |
| Ramshot Hunter | <<locked>> | 88% | 54,665 psi | 86% | 3074 fps | 99.6% |
| Ramshot Magnumᴾ | <<locked>> | 100% | 55,782 psi | 87% | 3120 fps | 99% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 38,043 psi | 60% | 1972 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 82% | 57,537 psi | 90% | 3045 fps | 99.7% |
| ReloadSwiss RS 60 | <<locked>> | 82% | 54,433 psi | 85% | 3100 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 88% | 57,464 psi | 90% | 3117 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 88% | 55,187 psi | 86% | 3140 fps | 100% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 51,503 psi | 81% | 3153 fps | 99.2% |
| Rottweil R 903 | <<locked>> | 82% | 55,361 psi | 87% | 3002 fps | 100% |
| Rottweil R 904 | <<locked>> | 92% | 55,521 psi | 87% | 3038 fps | 97.1% |
| Rottweil R 905 | <<locked>> | 94% | 56,956 psi | 89% | 3114 fps | 98.5% |
| Rottweil R 907 | <<locked>> | 86% | 56,956 psi | 89% | 3035 fps | 99% |
| Shooters World Long Rifle | <<locked>> | 86% | 55,724 psi | 87% | 3009 fps | 99.8% |
| Shooters World SW4350 | <<locked>> | 88% | 57,159 psi | 90% | 3054 fps | 99.5% |
| SNPE Vectan SP 11 | <<locked>> | 82% | 55,695 psi | 87% | 3048 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 82% | 54,534 psi | 85% | 2864 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 86% | 55,143 psi | 86% | 2956 fps | 99.2% |
| SNPE Vectan Tubal 8000 | <<locked>> | 94% | 56,492 psi | 89% | 3107 fps | 98.5% |
| Somchem S355 | <<locked>> | 82% | 54,824 psi | 86% | 2992 fps | 100% |
| Somchem S361 | <<locked>> | 92% | 57,508 psi | 90% | 3035 fps | 96.7% |
| Somchem S365 | <<locked>> | 90% | 56,028 psi | 88% | 3084 fps | 100% |
| Somchem S385 | <<locked>> | 92% | 54,607 psi | 86% | 3035 fps | 98.8% |
| Vihtavuori N150 | <<locked>> | 84% | 55,637 psi | 87% | 2959 fps | 100% |
| Vihtavuori N160 | <<locked>> | 88% | 57,740 psi | 90% | 3064 fps | 100% |
| Vihtavuori N165 | <<locked>> | 98% | 56,869 psi | 89% | 3058 fps | 98.8% |
| Vihtavuori N550 | <<locked>> | 88% | 57,101 psi | 89% | 3074 fps | 100% |
| Vihtavuori N555 | <<locked>> | 94% | 55,970 psi | 88% | 3100 fps | 100% |
| Vihtavuori N560 | <<locked>> | 94% | 54,752 psi | 86% | 3140 fps | 96.6% |
| Vihtavuori N565ᴾ | <<locked>> | 100% | 55,056 psi | 86% | 3123 fps | 96.9% |
| Winchester 6.5 StaBALL | <<locked>> | 88% | 56,811 psi | 89% | 3022 fps | 100% |
| Winchester 760 | <<locked>> | 86% | 55,695 psi | 87% | 3087 fps | 99.3% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 56,260 psi | 88% | 3258 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 96% | 57,290 psi | 90% | 3074 fps | 98.4% |
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>> | 80% | 35,288 psi | 55% | 2635 fps | 95.7% |
| Accurate 4350 | <<locked>> | 80% | 45,672 psi | 72% | 2884 fps | 99.5% |
| Accurate High Country | <<locked>> | 88% | 47,050 psi | 74% | 3009 fps | 95.4% |
| ADI AR 2208 | <<locked>> | 80% | 52,112 psi | 82% | 2946 fps | 100% |
| ADI AR 2209 | <<locked>> | 84% | 42,482 psi | 67% | 2838 fps | 95% |
| ADI AR 2213 | <<locked>> | 92% | 48,965 psi | 77% | 3002 fps | 95.4% |
| ADI AR 2225 | <<locked>> | 96% | 37,898 psi | 59% | 2799 fps | 95.3% |
| Alliant Power Pro Varmint | <<locked>> | 84% | 42,830 psi | 67% | 2844 fps | 95.2% |
| Alliant Power Pro Varmint | <<locked>> | 84% | 42,830 psi | 67% | 2844 fps | 95.2% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 53,664 psi | 84% | 2979 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 80% | 42,656 psi | 67% | 2871 fps | 99.4% |
| Alliant Reloder-17 | <<locked>> | 80% | 48,573 psi | 76% | 3002 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 84% | 42,482 psi | 67% | 2838 fps | 95.2% |
| Alliant Reloder-22 | <<locked>> | 88% | 43,279 psi | 68% | 2897 fps | 95.6% |
| Alliant Reloder-23 | <<locked>> | 80% | 33,040 psi | 52% | 2648 fps | 98.5% |
| Alliant Reloder-25 | <<locked>> | 84% | 32,895 psi | 52% | 2657 fps | 95.2% |
| Alliant Reloder-26 | 56.9 gr | 80% | 35,578 psi | 56% | 2779 fps | 97.3% |
| Bofors RP15 | <<locked>> | 90% | 42,772 psi | 67% | 2887 fps | 95.2% |
| Bofors RP30 | <<locked>> | 98% | 45,716 psi | 72% | 2979 fps | 95.5% |
| Bofors RP5 | <<locked>> | 88% | 43,279 psi | 68% | 2897 fps | 95.6% |
| Bofors RP7 | <<locked>> | 80% | 47,921 psi | 75% | 2871 fps | 97.6% |
| Hodgdon H1000 | <<locked>> | 96% | 45,455 psi | 71% | 2917 fps | 95.2% |
| Hodgdon H414 | <<locked>> | 80% | 46,093 psi | 72% | 2910 fps | 97.8% |
| Hodgdon H4350 | <<locked>> | 80% | 48,370 psi | 76% | 2917 fps | 97.1% |
| Hodgdon H4831 | <<locked>> | 92% | 52,112 psi | 82% | 3005 fps | 95.6% |
| Hodgdon H4831 SC | <<locked>> | 92% | 51,169 psi | 80% | 2989 fps | 95.4% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 40,640 psi | 64% | 2762 fps | 99.7% |
| Hodgdon Retumbo | <<locked>> | 94% | 42,859 psi | 67% | 2969 fps | 95.9% |
| Hodgdon Superformance | <<locked>> | 80% | 45,078 psi | 71% | 2923 fps | 97.3% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,992 psi | 44% | 1722 fps | 100% |
| IMR 4350 | <<locked>> | 80% | 43,163 psi | 68% | 2792 fps | 96.5% |
| IMR 4451 Enduron | <<locked>> | 80% | 48,530 psi | 76% | 2887 fps | 98.2% |
| IMR 4831 | <<locked>> | 80% | 43,149 psi | 68% | 2822 fps | 99.2% |
| IMR 4955 Enduron | <<locked>> | 90% | 50,589 psi | 79% | 2943 fps | 95.4% |
| IMR 7828 SSC | <<locked>> | 92% | 47,181 psi | 74% | 2979 fps | 95% |
| Lovex S065 | <<locked>> | 80% | 47,036 psi | 74% | 2851 fps | 98.9% |
| Lovex S070 | <<locked>> | 80% | 45,527 psi | 71% | 2841 fps | 97.8% |
| Lovex S071 | <<locked>> | 84% | 34,679 psi | 54% | 2615 fps | 95.5% |
| Norma 204 | <<locked>> | 80% | 42,888 psi | 67% | 2825 fps | 95% |
| Norma MRP | 56.6 gr | 82% | 37,637 psi | 59% | 2795 fps | 95.2% |
| Norma URP | <<locked>> | 80% | 44,106 psi | 69% | 2861 fps | 99.3% |
| Ramshot Grand | <<locked>> | 92% | 47,108 psi | 74% | 2989 fps | 95.4% |
| Ramshot Hunter | <<locked>> | 80% | 42,728 psi | 67% | 2844 fps | 97.8% |
| Ramshot Magnum | <<locked>> | 90% | 40,103 psi | 63% | 2812 fps | 95.3% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 28,761 psi | 45% | 1768 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 54,114 psi | 85% | 2989 fps | 99.4% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 51,198 psi | 80% | 3048 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 44,817 psi | 70% | 2894 fps | 99.3% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 42,641 psi | 67% | 2897 fps | 98.8% |
| ReloadSwiss RS 76 | <<locked>> | 92% | 39,929 psi | 63% | 2890 fps | 96.1% |
| Rottweil R 903 | <<locked>> | 80% | 52,228 psi | 82% | 2949 fps | 100% |
| Rottweil R 904 | <<locked>> | 86% | 46,586 psi | 73% | 2871 fps | 95% |
| Rottweil R 905 | <<locked>> | 84% | 42,018 psi | 66% | 2828 fps | 95.2% |
| Rottweil R 907 | <<locked>> | 80% | 47,921 psi | 75% | 2871 fps | 97.6% |
| Shooters World Long Rifle | <<locked>> | 80% | 47,036 psi | 74% | 2851 fps | 98.9% |
| Shooters World SW4350 | <<locked>> | 80% | 45,527 psi | 71% | 2841 fps | 97.8% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 52,388 psi | 82% | 2995 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 51,605 psi | 81% | 2822 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 46,166 psi | 72% | 2795 fps | 97.8% |
| SNPE Vectan Tubal 8000 | <<locked>> | 84% | 41,626 psi | 65% | 2822 fps | 95% |
| Somchem S355 | <<locked>> | 80% | 51,779 psi | 81% | 2943 fps | 100% |
| Somchem S361 | <<locked>> | 88% | 50,952 psi | 80% | 2920 fps | 95.3% |
| Somchem S365 | <<locked>> | 80% | 41,075 psi | 64% | 2825 fps | 100% |
| Somchem S385 | <<locked>> | 82% | 40,625 psi | 64% | 2762 fps | 95.7% |
| Vihtavuori N150 | <<locked>> | 80% | 49,516 psi | 78% | 2864 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 45,411 psi | 71% | 2851 fps | 99.4% |
| Vihtavuori N165 | <<locked>> | 88% | 42,134 psi | 66% | 2785 fps | 95.8% |
| Vihtavuori N550 | <<locked>> | 80% | 45,034 psi | 71% | 2858 fps | 99.3% |
| Vihtavuori N555 | <<locked>> | 80% | 37,057 psi | 58% | 2733 fps | 98.5% |
| Vihtavuori N560 | <<locked>> | 92% | 51,561 psi | 81% | 3081 fps | 95.8% |
| Vihtavuori N565 | <<locked>> | 96% | 48,718 psi | 76% | 3009 fps | 95.4% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 44,077 psi | 69% | 2812 fps | 100% |
| Winchester 760 | <<locked>> | 80% | 46,354 psi | 73% | 2913 fps | 97.9% |
| Winchester StaBALL HD | 54.7 gr | 80% | 30,023 psi | 47% | 2661 fps | 98.5% |
| Winchester Supreme 780 | <<locked>> | 88% | 44,527 psi | 70% | 2844 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 75 powders for .270 WSM loaded with the .276 | 130gr | Frontier PH HPFB. Winchester StaBALL HD delivers the highest muzzle velocity at 3,258 fps; across all powders the maximum-charge window runs from 1,926 fps to 3,258 fps. ADI AR 2225 gives the best case fill at 100 %, and 75 of the 75 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (440 MPa), the top charges use 58–90 %, leaving at least 10 % headroom. The 130.0 gr projectile in 0.276" calls for a 1:10.5 twist; slower twists will usually not stabilise this weight. ADI AR 2225, Alliant Reloder-25, Bofors RP30 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. Norma MRP, Alliant Reloder-26, Winchester StaBALL HD rank at the top here: for .270 WSM with the .276 | 130gr | Frontier PH HPFB 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.