Load Specifications
Load data in caliber .270 WSM with .277 | 115gr | CutEdge LZR bullet and 84 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are ReloadSwiss RS 70, Alliant Reloder-26 and Hodgdon Superformance.
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: 24"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2495 | <<locked>> | 82% | 57,290 psi | 90% | 3117 fps | 100% |
| Accurate 2700 | <<locked>> | 84% | 57,058 psi | 89% | 3163 fps | 97.9% |
| Accurate 3100ᴾ | <<locked>> | 100% | 55,767 psi | 87% | 3212 fps | 99.1% |
| Accurate 4064 | <<locked>> | 84% | 57,363 psi | 90% | 3173 fps | 100% |
| Accurate 4350 | <<locked>> | 92% | 57,696 psi | 90% | 3274 fps | 99.9% |
| ADI AR 2208 | <<locked>> | 86% | 55,970 psi | 88% | 3186 fps | 99.9% |
| ADI AR 2209 | <<locked>> | 98% | 57,682 psi | 90% | 3297 fps | 97.3% |
| Alliant Power Pro 2000-MR | <<locked>> | 82% | 55,114 psi | 86% | 3317 fps | 100% |
| Alliant Power Pro Varmint | <<locked>> | 98% | 57,696 psi | 90% | 3294 fps | 97.4% |
| Alliant Power Pro Varmint | <<locked>> | 98% | 57,696 psi | 90% | 3294 fps | 97.4% |
| Alliant Reloder- TS 15.5 | <<locked>> | 86% | 57,029 psi | 89% | 3219 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 84% | 57,203 psi | 90% | 3238 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 94% | 57,377 psi | 90% | 3327 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 88% | 55,172 psi | 86% | 3297 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 98% | 56,942 psi | 89% | 3284 fps | 97.3% |
| Alliant Reloder-22ᴾ | <<locked>> | 100% | 54,520 psi | 85% | 3287 fps | 97% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 51,547 psi | 81% | 3225 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 45,252 psi | 71% | 3130 fps | 98.1% |
| Alliant Reloder-26 | <<locked>> | 98% | 55,317 psi | 87% | 3373 fps | 99.9% |
| Bofors RP3 | <<locked>> | 84% | 54,853 psi | 86% | 3182 fps | 100% |
| Bofors RP5ᴾ | <<locked>> | 100% | 54,520 psi | 85% | 3287 fps | 97% |
| Bofors RP7 | <<locked>> | 90% | 57,348 psi | 90% | 3209 fps | 98.2% |
| Hodgdon H380 | <<locked>> | 84% | 55,129 psi | 86% | 3196 fps | 99.6% |
| Hodgdon H414 | <<locked>> | 90% | 55,448 psi | 87% | 3255 fps | 98.4% |
| Hodgdon H4350 | <<locked>> | 88% | 54,969 psi | 86% | 3209 fps | 97.2% |
| Hodgdon Hybrid 100V | <<locked>> | 96% | 57,725 psi | 90% | 3241 fps | 100% |
| Hodgdon LEVERevolution | <<locked>> | 82% | 55,651 psi | 87% | 3232 fps | 100% |
| Hodgdon Superformance | <<locked>> | 90% | 55,376 psi | 87% | 3287 fps | 98.2% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,724 psi | 58% | 2037 fps | 100% |
| Hodgdon VARGET | <<locked>> | 82% | 56,275 psi | 88% | 3192 fps | 100% |
| IMR 4064 | <<locked>> | 84% | 55,521 psi | 87% | 3169 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 82% | 54,534 psi | 85% | 3140 fps | 98.2% |
| IMR 4350 | <<locked>> | 92% | 54,607 psi | 86% | 3179 fps | 97.8% |
| IMR 4451 Enduron | <<locked>> | 88% | 55,245 psi | 87% | 3179 fps | 98.2% |
| IMR 4831 | <<locked>> | 94% | 57,638 psi | 90% | 3258 fps | 99.9% |
| IMR 4895 | <<locked>> | 82% | 55,245 psi | 87% | 3215 fps | 100% |
| Lovex S060 | <<locked>> | 82% | 56,826 psi | 89% | 3153 fps | 100% |
| Lovex S062 | <<locked>> | 84% | 56,144 psi | 88% | 3169 fps | 100% |
| Lovex S065 | <<locked>> | 90% | 55,796 psi | 87% | 3182 fps | 99.2% |
| Lovex S070 | <<locked>> | 92% | 57,174 psi | 90% | 3225 fps | 98.8% |
| Lovex S071ᴾ | <<locked>> | 100% | 46,746 psi | 73% | 3051 fps | 97.6% |
| Norma 201 | <<locked>> | 82% | 57,522 psi | 90% | 3186 fps | 100% |
| Norma 203B | <<locked>> | 84% | 56,565 psi | 89% | 3225 fps | 100% |
| Norma 204 | <<locked>> | 92% | 55,158 psi | 86% | 3228 fps | 96.7% |
| Norma MRPᴾ | <<locked>> | 100% | 57,725 psi | 90% | 3379 fps | 98.8% |
| Norma URP | <<locked>> | 92% | 55,666 psi | 87% | 3251 fps | 99.8% |
| Ramshot Big Game | <<locked>> | 84% | 57,305 psi | 90% | 3248 fps | 100% |
| Ramshot Hunter | <<locked>> | 92% | 54,288 psi | 85% | 3238 fps | 98.9% |
| Ramshot Magnumᴾ | <<locked>> | 100% | 47,993 psi | 75% | 3130 fps | 96.1% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 37,362 psi | 59% | 2087 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 84% | 54,752 psi | 86% | 3169 fps | 98.7% |
| ReloadSwiss RS 60 | <<locked>> | 86% | 54,578 psi | 86% | 3294 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 92% | 57,101 psi | 89% | 3291 fps | 99.8% |
| ReloadSwiss RS 70 | <<locked>> | 92% | 55,085 psi | 86% | 3310 fps | 99.7% |
| Rottweil R 902 | <<locked>> | 82% | 55,042 psi | 86% | 3133 fps | 100% |
| Rottweil R 903 | <<locked>> | 86% | 55,187 psi | 86% | 3182 fps | 100% |
| Rottweil R 904 | <<locked>> | 96% | 55,854 psi | 88% | 3205 fps | 95.8% |
| Rottweil R 905 | <<locked>> | 98% | 56,304 psi | 88% | 3271 fps | 97.3% |
| Rottweil R 907 | <<locked>> | 90% | 57,348 psi | 90% | 3209 fps | 98.2% |
| Shooters World Long Rifle | <<locked>> | 90% | 55,796 psi | 87% | 3182 fps | 99.2% |
| Shooters World Precision | <<locked>> | 84% | 56,144 psi | 88% | 3169 fps | 100% |
| Shooters World SW4350 | <<locked>> | 92% | 57,174 psi | 90% | 3225 fps | 98.8% |
| SNPE Vectan SP 11 | <<locked>> | 86% | 55,840 psi | 88% | 3232 fps | 100% |
| SNPE Vectan SP 9 | <<locked>> | 82% | 56,855 psi | 89% | 3205 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 86% | 55,434 psi | 87% | 3058 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 90% | 55,637 psi | 87% | 3127 fps | 98.4% |
| SNPE Vectan Tubal 8000 | <<locked>> | 98% | 55,811 psi | 87% | 3264 fps | 97.2% |
| Somchem S335 | <<locked>> | 82% | 57,740 psi | 90% | 3104 fps | 100% |
| Somchem S355 | <<locked>> | 86% | 54,723 psi | 86% | 3173 fps | 100% |
| Somchem S365 | <<locked>> | 94% | 54,795 psi | 86% | 3255 fps | 100% |
| Somchem S385 | <<locked>> | 98% | 57,305 psi | 90% | 3248 fps | 98.2% |
| Vihtavuori N135 | <<locked>> | 82% | 55,158 psi | 86% | 3094 fps | 100% |
| Vihtavuori N140 | <<locked>> | 82% | 54,955 psi | 86% | 3100 fps | 100% |
| Vihtavuori N150 | <<locked>> | 88% | 55,999 psi | 88% | 3143 fps | 100% |
| Vihtavuori N160 | <<locked>> | 90% | 54,085 psi | 85% | 3182 fps | 99.7% |
| Vihtavuori N165ᴾ | <<locked>> | 100% | 52,982 psi | 83% | 3156 fps | 97.1% |
| Vihtavuori N540 | <<locked>> | 84% | 56,927 psi | 89% | 3150 fps | 100% |
| Vihtavuori N550 | <<locked>> | 92% | 57,101 psi | 89% | 3248 fps | 99.8% |
| Vihtavuori N555 | <<locked>> | 98% | 54,592 psi | 86% | 3261 fps | 99.9% |
| Winchester 6.5 StaBALL | <<locked>> | 92% | 57,334 psi | 90% | 3202 fps | 100% |
| Winchester 760 | <<locked>> | 90% | 55,448 psi | 87% | 3255 fps | 98.4% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 47,007 psi | 74% | 3284 fps | 100% |
| Winchester StaBALL Match | <<locked>> | 82% | 57,246 psi | 90% | 3219 fps | 100% |
| Winchester Supreme 780ᴾ | <<locked>> | 100% | 57,464 psi | 90% | 3238 fps | 97.3% |
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 2495 | <<locked>> | 80% | 53,853 psi | 84% | 3068 fps | 100% |
| Accurate 2700 | <<locked>> | 80% | 50,256 psi | 79% | 3038 fps | 96.6% |
| Accurate 3100 | <<locked>> | 88% | 37,884 psi | 59% | 2854 fps | 95.1% |
| Accurate 4064 | <<locked>> | 80% | 50,908 psi | 80% | 3071 fps | 100% |
| Accurate 4350 | <<locked>> | 80% | 39,030 psi | 61% | 2910 fps | 97.2% |
| ADI AR 2208 | <<locked>> | 80% | 46,760 psi | 73% | 3018 fps | 99.2% |
| ADI AR 2209 | <<locked>> | 94% | 50,720 psi | 79% | 3169 fps | 95.8% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 51,576 psi | 81% | 3251 fps | 99.8% |
| Alliant Power Pro Varmint | <<locked>> | 92% | 47,979 psi | 75% | 3110 fps | 95.1% |
| Alliant Power Pro Varmint | <<locked>> | 92% | 47,979 psi | 75% | 3110 fps | 95.1% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 47,587 psi | 75% | 3051 fps | 99.9% |
| Alliant Reloder-15 | <<locked>> | 80% | 50,778 psi | 80% | 3127 fps | 99.7% |
| Alliant Reloder-16 | <<locked>> | 80% | 37,347 psi | 59% | 2904 fps | 97% |
| Alliant Reloder-17 | <<locked>> | 80% | 42,134 psi | 66% | 3045 fps | 99.5% |
| Alliant Reloder-19 | <<locked>> | 92% | 47,456 psi | 74% | 3104 fps | 95.1% |
| Alliant Reloder-22 | <<locked>> | 96% | 47,921 psi | 75% | 3156 fps | 95.4% |
| Alliant Reloder-23 | <<locked>> | 82% | 29,965 psi | 47% | 2703 fps | 95.6% |
| Alliant Reloder-25 | <<locked>> | 94% | 37,768 psi | 59% | 2940 fps | 95.5% |
| Alliant Reloder-26 | 61.4 gr | 86% | 36,738 psi | 58% | 2963 fps | 96.1% |
| Bofors RP3 | <<locked>> | 80% | 48,501 psi | 76% | 3074 fps | 100% |
| Bofors RP5 | <<locked>> | 96% | 47,921 psi | 75% | 3156 fps | 95.4% |
| Bofors RP7 | <<locked>> | 82% | 45,179 psi | 71% | 2976 fps | 95.6% |
| Hodgdon H380 | <<locked>> | 80% | 48,414 psi | 76% | 3071 fps | 98.8% |
| Hodgdon H414 | <<locked>> | 82% | 42,873 psi | 67% | 3005 fps | 95.6% |
| Hodgdon H4350 | <<locked>> | 84% | 48,544 psi | 76% | 3084 fps | 95.7% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 35,157 psi | 55% | 2799 fps | 97.9% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 52,431 psi | 82% | 3176 fps | 100% |
| Hodgdon Superformance | 61.8 gr | 84% | 45,063 psi | 71% | 3084 fps | 95.8% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,514 psi | 43% | 1824 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 52,939 psi | 83% | 3136 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 49,182 psi | 77% | 3054 fps | 99.6% |
| IMR 4166 Enduron | <<locked>> | 80% | 51,401 psi | 81% | 3081 fps | 97.6% |
| IMR 4350 | <<locked>> | 86% | 45,687 psi | 72% | 3005 fps | 95.8% |
| IMR 4451 Enduron | <<locked>> | 80% | 43,642 psi | 68% | 2946 fps | 95.6% |
| IMR 4831 | <<locked>> | 80% | 37,231 psi | 58% | 2851 fps | 96.8% |
| IMR 4895 | <<locked>> | 80% | 52,011 psi | 82% | 3159 fps | 99.9% |
| Lovex S060 | <<locked>> | 80% | 53,563 psi | 84% | 3100 fps | 100% |
| Lovex S062 | <<locked>> | 80% | 49,792 psi | 78% | 3061 fps | 100% |
| Lovex S065 | <<locked>> | 80% | 41,597 psi | 65% | 2900 fps | 96.6% |
| Lovex S070 | <<locked>> | 82% | 42,366 psi | 66% | 2933 fps | 95.6% |
| Lovex S071 | <<locked>> | 94% | 38,972 psi | 61% | 2881 fps | 95.5% |
| Norma 201 | <<locked>> | 80% | 54,186 psi | 85% | 3130 fps | 100% |
| Norma 203B | <<locked>> | 80% | 50,183 psi | 79% | 3110 fps | 99.8% |
| Norma 204 | <<locked>> | 88% | 48,544 psi | 76% | 3104 fps | 95.1% |
| Norma MRP | <<locked>> | 92% | 44,382 psi | 70% | 3117 fps | 95.9% |
| Norma URP | <<locked>> | 80% | 38,261 psi | 60% | 2894 fps | 96.9% |
| Ramshot Big Game | <<locked>> | 80% | 50,386 psi | 79% | 3130 fps | 99.8% |
| Ramshot Hunter | <<locked>> | 82% | 39,566 psi | 62% | 2933 fps | 95.5% |
| Ramshot Magnum | <<locked>> | 98% | 44,773 psi | 70% | 3061 fps | 95% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,963 psi | 44% | 1867 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 48,283 psi | 76% | 3048 fps | 97.6% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 44,556 psi | 70% | 3110 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 38,319 psi | 60% | 2917 fps | 96.7% |
| ReloadSwiss RS 70 | 56.6 gr | 80% | 37,260 psi | 58% | 2917 fps | 95.7% |
| Rottweil R 902 | <<locked>> | 80% | 51,880 psi | 81% | 3081 fps | 100% |
| Rottweil R 903 | <<locked>> | 80% | 45,687 psi | 72% | 3012 fps | 99.8% |
| Rottweil R 904 | <<locked>> | 94% | 52,533 psi | 82% | 3143 fps | 95% |
| Rottweil R 905 | <<locked>> | 92% | 46,630 psi | 73% | 3087 fps | 95% |
| Rottweil R 907 | <<locked>> | 82% | 45,179 psi | 71% | 2976 fps | 95.6% |
| Shooters World Long Rifle | <<locked>> | 80% | 41,597 psi | 65% | 2900 fps | 96.6% |
| Shooters World Precision | <<locked>> | 80% | 49,792 psi | 78% | 3061 fps | 100% |
| Shooters World SW4350 | <<locked>> | 82% | 42,366 psi | 66% | 2933 fps | 95.6% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 46,151 psi | 72% | 3054 fps | 99.5% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 53,403 psi | 84% | 3150 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 46,369 psi | 73% | 2910 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 40,857 psi | 64% | 2838 fps | 95% |
| SNPE Vectan Tubal 8000 | <<locked>> | 94% | 49,168 psi | 77% | 3143 fps | 95.7% |
| Somchem S335 | <<locked>> | 80% | 54,476 psi | 85% | 3054 fps | 100% |
| Somchem S355 | <<locked>> | 80% | 45,759 psi | 72% | 3005 fps | 99.7% |
| Somchem S365 | <<locked>> | 80% | 34,925 psi | 55% | 2854 fps | 99% |
| Somchem S385 | <<locked>> | 90% | 44,773 psi | 70% | 3012 fps | 95.5% |
| Vihtavuori N135 | <<locked>> | 80% | 51,793 psi | 81% | 3045 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 51,764 psi | 81% | 3051 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 43,685 psi | 68% | 2930 fps | 99.9% |
| Vihtavuori N160 | <<locked>> | 80% | 39,595 psi | 62% | 2890 fps | 97.2% |
| Vihtavuori N165 | <<locked>> | 96% | 46,601 psi | 73% | 3035 fps | 95.5% |
| Vihtavuori N540 | <<locked>> | 80% | 50,183 psi | 79% | 3045 fps | 100% |
| Vihtavuori N550 | <<locked>> | 80% | 39,218 psi | 61% | 2894 fps | 97% |
| Vihtavuori N555 | <<locked>> | 80% | 31,154 psi | 49% | 2740 fps | 95% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 38,696 psi | 61% | 2854 fps | 99% |
| Winchester 760 | <<locked>> | 82% | 43,091 psi | 68% | 3009 fps | 95.6% |
| Winchester StaBALL HD | <<locked>> | 84% | 28,645 psi | 45% | 2743 fps | 95.5% |
| Winchester StaBALL Match | <<locked>> | 80% | 53,621 psi | 84% | 3159 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 96% | 50,198 psi | 79% | 3110 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 84 powders for .270 WSM loaded with the .277 | 115gr | CutEdge LZR. Norma MRP delivers the highest muzzle velocity at 3,379 fps; across all powders the maximum-charge window runs from 2,037 fps to 3,379 fps. Accurate 3100 gives the best case fill at 100 %, and 84 of the 84 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 115.0 gr projectile in 0.277" calls for a 1:9.5 twist; slower twists will usually not stabilise this weight. Accurate 3100, Alliant Reloder-22, 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. ReloadSwiss RS 70, Alliant Reloder-26, Hodgdon Superformance rank at the top here: for .270 WSM with the .277 | 115gr | CutEdge LZR 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.