Load Specifications
Load data in caliber .270 WSM with .277 | 110gr | Hornady V-MAX bullet and 70 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 Alliant Reloder-16.
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 2700 | <<locked>> | 82% | 56,405 psi | 88% | 3212 fps | 97.7% |
| Accurate 3100 | <<locked>> | 98% | 56,463 psi | 88% | 3278 fps | 99.1% |
| Accurate 4350 | <<locked>> | 88% | 54,433 psi | 85% | 3278 fps | 99.7% |
| ADI AR 2208 | <<locked>> | 84% | 55,448 psi | 87% | 3241 fps | 99.9% |
| ADI AR 2209 | <<locked>> | 96% | 57,276 psi | 90% | 3353 fps | 97.2% |
| Alliant Reloder- TS 15.5 | <<locked>> | 84% | 56,695 psi | 89% | 3274 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 82% | 56,985 psi | 89% | 3297 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 92% | 56,913 psi | 89% | 3379 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 86% | 54,723 psi | 86% | 3350 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 96% | 56,927 psi | 89% | 3343 fps | 97.2% |
| Alliant Reloder-22 | <<locked>> | 98% | 54,694 psi | 86% | 3346 fps | 96.9% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 55,201 psi | 87% | 3343 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 48,559 psi | 76% | 3258 fps | 98.7% |
| Alliant Reloder-26 | <<locked>> | 96% | 55,709 psi | 87% | 3435 fps | 99.9% |
| Bofors RP15ᴾ | <<locked>> | 100% | 53,693 psi | 84% | 3323 fps | 96.5% |
| Bofors RP3 | <<locked>> | 82% | 54,998 psi | 86% | 3245 fps | 100% |
| Bofors RP5 | <<locked>> | 98% | 54,694 psi | 86% | 3346 fps | 96.9% |
| Bofors RP7 | <<locked>> | 88% | 57,188 psi | 90% | 3268 fps | 98% |
| Hodgdon H380 | <<locked>> | 82% | 54,679 psi | 86% | 3248 fps | 99.5% |
| Hodgdon H414 | <<locked>> | 88% | 55,259 psi | 87% | 3310 fps | 98.3% |
| Hodgdon H4350 | <<locked>> | 86% | 54,491 psi | 85% | 3261 fps | 97% |
| Hodgdon Hybrid 100V | <<locked>> | 94% | 57,682 psi | 90% | 3301 fps | 100% |
| Hodgdon Superformance | <<locked>> | 88% | 55,187 psi | 86% | 3343 fps | 98.1% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,956 psi | 58% | 2103 fps | 100% |
| IMR 4064 | <<locked>> | 82% | 54,955 psi | 86% | 3225 fps | 99.9% |
| IMR 4166 Enduron | <<locked>> | 82% | 57,290 psi | 90% | 3251 fps | 98.5% |
| IMR 4350 | <<locked>> | 92% | 57,508 psi | 90% | 3291 fps | 98.2% |
| IMR 4451 Enduron | <<locked>> | 86% | 54,708 psi | 86% | 3232 fps | 98.1% |
| IMR 4831 | <<locked>> | 90% | 54,418 psi | 85% | 3264 fps | 99.7% |
| Lovex S062 | <<locked>> | 82% | 55,869 psi | 88% | 3225 fps | 100% |
| Lovex S065 | <<locked>> | 88% | 55,854 psi | 88% | 3241 fps | 99.2% |
| Lovex S070 | <<locked>> | 90% | 57,130 psi | 90% | 3284 fps | 98.7% |
| Lovex S071ᴾ | <<locked>> | 100% | 50,676 psi | 79% | 3176 fps | 98.3% |
| Norma 203B | <<locked>> | 82% | 56,376 psi | 88% | 3281 fps | 100% |
| Norma 204 | <<locked>> | 90% | 54,839 psi | 86% | 3284 fps | 96.5% |
| Norma MRP | <<locked>> | 96% | 54,418 psi | 85% | 3379 fps | 98.2% |
| Norma URP | <<locked>> | 90% | 55,637 psi | 87% | 3307 fps | 99.8% |
| Ramshot Big Game | <<locked>> | 82% | 56,666 psi | 89% | 3301 fps | 100% |
| Ramshot Grandᴾ | <<locked>> | 100% | 57,072 psi | 89% | 3392 fps | 96.2% |
| Ramshot Hunter | <<locked>> | 90% | 54,215 psi | 85% | 3297 fps | 98.8% |
| Ramshot Magnumᴾ | <<locked>> | 100% | 51,735 psi | 81% | 3258 fps | 96.9% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 37,855 psi | 59% | 2156 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 82% | 54,288 psi | 85% | 3219 fps | 98.5% |
| ReloadSwiss RS 60 | <<locked>> | 84% | 54,317 psi | 85% | 3350 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 90% | 57,130 psi | 90% | 3350 fps | 99.8% |
| ReloadSwiss RS 70 | <<locked>> | 90% | 54,984 psi | 86% | 3369 fps | 99.6% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 48,138 psi | 75% | 3281 fps | 97% |
| Rottweil R 903 | <<locked>> | 84% | 55,288 psi | 87% | 3245 fps | 100% |
| Rottweil R 905 | <<locked>> | 96% | 56,507 psi | 89% | 3333 fps | 97.2% |
| Rottweil R 907 | <<locked>> | 88% | 57,188 psi | 90% | 3268 fps | 98% |
| Shooters World Long Rifle | <<locked>> | 88% | 55,854 psi | 88% | 3241 fps | 99.2% |
| Shooters World Precision | <<locked>> | 82% | 55,869 psi | 88% | 3225 fps | 100% |
| Shooters World SW4350 | <<locked>> | 90% | 57,130 psi | 90% | 3284 fps | 98.7% |
| SNPE Vectan SP 11 | <<locked>> | 84% | 55,506 psi | 87% | 3287 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 84% | 54,781 psi | 86% | 3110 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 88% | 55,201 psi | 87% | 3179 fps | 98.2% |
| SNPE Vectan Tubal 8000 | <<locked>> | 96% | 56,014 psi | 88% | 3327 fps | 97.1% |
| Somchem S355 | <<locked>> | 84% | 54,708 psi | 86% | 3232 fps | 100% |
| Somchem S365 | <<locked>> | 92% | 55,158 psi | 86% | 3317 fps | 100% |
| Somchem S385 | <<locked>> | 96% | 57,580 psi | 90% | 3310 fps | 98.1% |
| Vihtavuori N150 | <<locked>> | 86% | 55,608 psi | 87% | 3199 fps | 100% |
| Vihtavuori N160 | <<locked>> | 90% | 57,493 psi | 90% | 3301 fps | 99.8% |
| Vihtavuori N165ᴾ | <<locked>> | 100% | 56,521 psi | 89% | 3271 fps | 97.6% |
| Vihtavuori N540 | <<locked>> | 82% | 56,231 psi | 88% | 3202 fps | 100% |
| Vihtavuori N550 | <<locked>> | 90% | 56,884 psi | 89% | 3304 fps | 99.8% |
| Vihtavuori N555 | <<locked>> | 96% | 55,216 psi | 87% | 3327 fps | 99.9% |
| Winchester 6.5 StaBALL | <<locked>> | 90% | 56,913 psi | 89% | 3258 fps | 100% |
| Winchester 760 | <<locked>> | 88% | 55,506 psi | 87% | 3317 fps | 98.3% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 50,792 psi | 80% | 3415 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 98% | 57,130 psi | 90% | 3291 fps | 97.1% |
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 2700 | <<locked>> | 80% | 52,939 psi | 83% | 3150 fps | 97.1% |
| Accurate 3100 | <<locked>> | 86% | 39,059 psi | 61% | 2927 fps | 95.3% |
| Accurate 4350 | <<locked>> | 80% | 42,395 psi | 66% | 3038 fps | 98% |
| ADI AR 2208 | <<locked>> | 80% | 49,414 psi | 77% | 3127 fps | 99.5% |
| ADI AR 2209 | <<locked>> | 92% | 50,633 psi | 79% | 3228 fps | 95.6% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 50,575 psi | 79% | 3166 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 80% | 53,635 psi | 84% | 3238 fps | 99.9% |
| Alliant Reloder-16 | 54.3 gr | 80% | 39,784 psi | 62% | 3018 fps | 97.6% |
| Alliant Reloder-17 | <<locked>> | 80% | 45,034 psi | 71% | 3163 fps | 99.7% |
| Alliant Reloder-19 | <<locked>> | 92% | 50,444 psi | 79% | 3222 fps | 95.8% |
| Alliant Reloder-22 | <<locked>> | 94% | 48,370 psi | 76% | 3222 fps | 95.3% |
| Alliant Reloder-23 | <<locked>> | 80% | 30,879 psi | 48% | 2776 fps | 95.9% |
| Alliant Reloder-25 | <<locked>> | 92% | 38,421 psi | 60% | 3009 fps | 95.7% |
| Alliant Reloder-26 | 61.5 gr | 82% | 35,157 psi | 55% | 2963 fps | 95.2% |
| Bofors RP15 | <<locked>> | 98% | 50,473 psi | 79% | 3261 fps | 95.7% |
| Bofors RP3 | <<locked>> | 80% | 51,735 psi | 81% | 3186 fps | 100% |
| Bofors RP5 | <<locked>> | 94% | 48,370 psi | 76% | 3222 fps | 95.3% |
| Bofors RP7 | <<locked>> | 80% | 45,324 psi | 71% | 3031 fps | 95.5% |
| Hodgdon H380 | <<locked>> | 80% | 51,503 psi | 81% | 3186 fps | 99.1% |
| Hodgdon H414 | <<locked>> | 80% | 43,236 psi | 68% | 3064 fps | 95.5% |
| Hodgdon H4350 | <<locked>> | 82% | 48,385 psi | 76% | 3136 fps | 95.5% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 37,869 psi | 59% | 2913 fps | 98.4% |
| Hodgdon Superformance | <<locked>> | 82% | 44,976 psi | 70% | 3133 fps | 95.6% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,818 psi | 44% | 1886 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 51,996 psi | 81% | 3169 fps | 99.8% |
| IMR 4166 Enduron | <<locked>> | 80% | 54,041 psi | 85% | 3192 fps | 98% |
| IMR 4350 | <<locked>> | 84% | 45,658 psi | 72% | 3061 fps | 95.6% |
| IMR 4451 Enduron | <<locked>> | 80% | 45,905 psi | 72% | 3051 fps | 96.1% |
| IMR 4831 | <<locked>> | 80% | 40,248 psi | 63% | 2972 fps | 97.5% |
| Lovex S062 | <<locked>> | 80% | 52,852 psi | 83% | 3176 fps | 100% |
| Lovex S065 | <<locked>> | 80% | 44,382 psi | 70% | 3015 fps | 97.2% |
| Lovex S070 | <<locked>> | 80% | 42,815 psi | 67% | 2995 fps | 95.6% |
| Lovex S071 | <<locked>> | 92% | 40,248 psi | 63% | 2956 fps | 95.7% |
| Norma 203B | <<locked>> | 80% | 53,069 psi | 83% | 3225 fps | 99.9% |
| Norma 204 | <<locked>> | 88% | 51,576 psi | 81% | 3219 fps | 95.7% |
| Norma MRP | 64.1 gr | 88% | 42,264 psi | 66% | 3117 fps | 95% |
| Norma URP | <<locked>> | 80% | 41,205 psi | 65% | 3015 fps | 97.6% |
| Ramshot Big Game | <<locked>> | 80% | 53,171 psi | 83% | 3241 fps | 99.9% |
| Ramshot Grand | <<locked>> | 98% | 53,156 psi | 83% | 3320 fps | 95.2% |
| Ramshot Hunter | <<locked>> | 80% | 39,856 psi | 62% | 2992 fps | 95.4% |
| Ramshot Magnum | <<locked>> | 96% | 45,281 psi | 71% | 3123 fps | 95.1% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 28,500 psi | 45% | 1932 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 51,024 psi | 80% | 3156 fps | 98% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 47,485 psi | 74% | 3222 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 41,611 psi | 65% | 3041 fps | 97.5% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 39,769 psi | 62% | 3035 fps | 96.5% |
| ReloadSwiss RS 76 | <<locked>> | 98% | 45,107 psi | 71% | 3209 fps | 95.9% |
| Rottweil R 903 | <<locked>> | 80% | 48,979 psi | 77% | 3130 fps | 99.9% |
| Rottweil R 905 | <<locked>> | 92% | 49,937 psi | 78% | 3209 fps | 95.8% |
| Rottweil R 907 | <<locked>> | 80% | 45,324 psi | 71% | 3031 fps | 95.5% |
| Shooters World Long Rifle | <<locked>> | 80% | 44,382 psi | 70% | 3015 fps | 97.2% |
| Shooters World Precision | <<locked>> | 80% | 52,852 psi | 83% | 3176 fps | 100% |
| Shooters World SW4350 | <<locked>> | 80% | 42,815 psi | 67% | 2995 fps | 95.6% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 49,052 psi | 77% | 3169 fps | 99.7% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 48,921 psi | 77% | 3012 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 43,555 psi | 68% | 2946 fps | 95.7% |
| SNPE Vectan Tubal 8000 | <<locked>> | 92% | 49,472 psi | 78% | 3202 fps | 95.6% |
| Somchem S355 | <<locked>> | 80% | 48,791 psi | 76% | 3120 fps | 99.9% |
| Somchem S365 | <<locked>> | 80% | 37,869 psi | 59% | 2976 fps | 99.4% |
| Somchem S385 | <<locked>> | 88% | 45,368 psi | 71% | 3074 fps | 95.5% |
| Vihtavuori N150 | <<locked>> | 80% | 46,572 psi | 73% | 3038 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 42,424 psi | 66% | 3009 fps | 97.9% |
| Vihtavuori N165 | <<locked>> | 94% | 47,007 psi | 74% | 3097 fps | 95.5% |
| Vihtavuori N540 | <<locked>> | 80% | 53,113 psi | 83% | 3150 fps | 100% |
| Vihtavuori N550 | <<locked>> | 80% | 42,177 psi | 66% | 3012 fps | 97.6% |
| Vihtavuori N555 | <<locked>> | 80% | 34,200 psi | 54% | 2867 fps | 96.1% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 41,481 psi | 65% | 2969 fps | 99.4% |
| Winchester 760 | <<locked>> | 80% | 43,236 psi | 68% | 3064 fps | 95.5% |
| Winchester StaBALL HD | <<locked>> | 82% | 29,646 psi | 46% | 2822 fps | 96% |
| Winchester Supreme 780 | <<locked>> | 94% | 50,270 psi | 79% | 3169 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 86 powders for .270 WSM loaded with the .277 | 110gr | Hornady V-MAX. Alliant Reloder-26 delivers the highest muzzle velocity at 3,435 fps; across all powders the maximum-charge window runs from 2,103 fps to 3,435 fps. ADI AR 2217 gives the best case fill at 100 %, and 86 of the 86 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 110.0 gr projectile in 0.277" calls for a 1:13.5 twist; slower twists will usually not stabilise this weight. ADI AR 2217, ADI AR 2225, Alliant Reloder-23 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, Alliant Reloder-16 rank at the top here: for .270 WSM with the .277 | 110gr | Hornady V-MAX they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, Accurate MAGPRO, ADI AR 2217, ADI AR 2225 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.