Load Specifications
Load data in caliber .270 WSM with .277 | 96gr | RWS Evolution Green bullet and 88 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are ReloadSwiss RS 70, ReloadSwiss RS 60 and Alliant Reloder-17.
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.
A valid access license is required to use the Personalized Load Calculator.
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 2015 | <<locked>> | 82% | 56,739 psi | 89% | 3346 fps | 100% |
| Accurate 2495 | <<locked>> | 86% | 57,363 psi | 90% | 3383 fps | 100% |
| Accurate 3100ᴾ | <<locked>> | 100% | 47,906 psi | 75% | 3291 fps | 96% |
| Accurate 4064 | <<locked>> | 88% | 57,217 psi | 90% | 3432 fps | 100% |
| Accurate 4350 | <<locked>> | 96% | 56,898 psi | 89% | 3507 fps | 99.1% |
| ADI AR 2206H | <<locked>> | 84% | 55,666 psi | 87% | 3445 fps | 99.6% |
| ADI AR 2208 | <<locked>> | 90% | 56,695 psi | 89% | 3442 fps | 99.4% |
| ADI Benchmark 8208 | <<locked>> | 82% | 54,433 psi | 85% | 3389 fps | 99.9% |
| Alliant AR-Comp | <<locked>> | 82% | 55,637 psi | 87% | 3379 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 86% | 55,463 psi | 87% | 3570 fps | 99.3% |
| Alliant Reloder- TS 15.5 | <<locked>> | 90% | 57,450 psi | 90% | 3474 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 86% | 54,404 psi | 85% | 3438 fps | 99.2% |
| Alliant Reloder-16 | <<locked>> | 98% | 56,985 psi | 89% | 3563 fps | 99.4% |
| Alliant Reloder-17 | <<locked>> | 92% | 54,940 psi | 86% | 3543 fps | 99.9% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 44,599 psi | 70% | 3314 fps | 98.7% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 50,734 psi | 80% | 3514 fps | 98.2% |
| Baschieri & Pellagri 107 | <<locked>> | 84% | 55,564 psi | 87% | 3448 fps | 99% |
| Bofors RP3 | <<locked>> | 88% | 54,955 psi | 86% | 3435 fps | 99.9% |
| Bofors RP7 | <<locked>> | 92% | 54,491 psi | 85% | 3383 fps | 95.8% |
| Hodgdon Benchmark | <<locked>> | 82% | 55,941 psi | 88% | 3376 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 82% | 54,563 psi | 86% | 3422 fps | 100% |
| Hodgdon H380 | <<locked>> | 88% | 55,608 psi | 87% | 3442 fps | 98.6% |
| Hodgdon H414 | <<locked>> | 94% | 55,230 psi | 87% | 3488 fps | 96.7% |
| Hodgdon H4895 | <<locked>> | 84% | 56,304 psi | 88% | 3461 fps | 99.8% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 57,145 psi | 90% | 3481 fps | 99.9% |
| Hodgdon LEVERevolution | <<locked>> | 86% | 56,028 psi | 88% | 3491 fps | 99.9% |
| Hodgdon Superformance | <<locked>> | 94% | 55,811 psi | 87% | 3514 fps | 96.4% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,940 psi | 56% | 2205 fps | 100% |
| Hodgdon VARGET | <<locked>> | 86% | 57,276 psi | 90% | 3458 fps | 99.9% |
| IMR 3031 | <<locked>> | 84% | 56,304 psi | 88% | 3451 fps | 100% |
| IMR 4064 | <<locked>> | 88% | 56,246 psi | 88% | 3428 fps | 99.5% |
| IMR 4166 Enduron | <<locked>> | 86% | 55,767 psi | 87% | 3389 fps | 96.6% |
| IMR 4350 | <<locked>> | 96% | 54,882 psi | 86% | 3406 fps | 95.9% |
| IMR 4451 Enduron | <<locked>> | 92% | 55,898 psi | 88% | 3415 fps | 96.6% |
| IMR 4831 | <<locked>> | 98% | 57,029 psi | 89% | 3491 fps | 99.2% |
| IMR 4895 | <<locked>> | 86% | 55,767 psi | 87% | 3474 fps | 99.6% |
| IMR 8208 XBR | <<locked>> | 82% | 54,433 psi | 85% | 3389 fps | 99.9% |
| Lovex D073.6 | <<locked>> | 84% | 56,231 psi | 88% | 3425 fps | 100% |
| Lovex S060 | <<locked>> | 84% | 54,737 psi | 86% | 3360 fps | 99.5% |
| Lovex S062 | <<locked>> | 88% | 56,579 psi | 89% | 3428 fps | 100% |
| Lovex S065 | <<locked>> | 94% | 56,028 psi | 88% | 3419 fps | 98% |
| Lovex S070 | <<locked>> | 96% | 57,188 psi | 90% | 3455 fps | 97.2% |
| Norma 201 | <<locked>> | 84% | 54,940 psi | 86% | 3392 fps | 99.9% |
| Norma 202 | <<locked>> | 84% | 55,143 psi | 86% | 3392 fps | 100% |
| Norma 203B | <<locked>> | 88% | 56,985 psi | 89% | 3481 fps | 99.7% |
| Norma URP | <<locked>> | 96% | 55,129 psi | 86% | 3481 fps | 98.9% |
| Ramshot Big Game | <<locked>> | 88% | 57,551 psi | 90% | 3501 fps | 99.7% |
| Ramshot Hunter | <<locked>> | 98% | 57,682 psi | 90% | 3533 fps | 98% |
| Ramshot TAC | <<locked>> | 82% | 54,839 psi | 86% | 3396 fps | 97.9% |
| Ramshot Wild Boar | <<locked>> | 82% | 54,491 psi | 85% | 3419 fps | 99.5% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 36,709 psi | 58% | 2260 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 88% | 55,579 psi | 87% | 3412 fps | 97.3% |
| ReloadSwiss RS 52 | <<locked>> | 84% | 54,679 psi | 86% | 3507 fps | 99.2% |
| ReloadSwiss RS 60 | <<locked>> | 90% | 54,491 psi | 85% | 3550 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 96% | 56,420 psi | 88% | 3520 fps | 98.9% |
| ReloadSwiss RS 70 | <<locked>> | 96% | 55,317 psi | 87% | 3543 fps | 98.6% |
| Rottweil R 901 | <<locked>> | 82% | 56,275 psi | 88% | 3386 fps | 100% |
| Rottweil R 902 | <<locked>> | 86% | 55,550 psi | 87% | 3392 fps | 99.9% |
| Rottweil R 903 | <<locked>> | 90% | 55,027 psi | 86% | 3425 fps | 99.8% |
| Rottweil R 907 | <<locked>> | 92% | 54,491 psi | 85% | 3383 fps | 95.8% |
| Shooters World Long Rifle | <<locked>> | 94% | 56,028 psi | 88% | 3419 fps | 98% |
| Shooters World Match Rifle | <<locked>> | 84% | 56,231 psi | 88% | 3425 fps | 100% |
| Shooters World Precision | <<locked>> | 88% | 56,579 psi | 89% | 3428 fps | 100% |
| Shooters World SW4350 | <<locked>> | 96% | 57,188 psi | 90% | 3455 fps | 97.2% |
| SNPE Vectan SP 11 | <<locked>> | 90% | 56,101 psi | 88% | 3484 fps | 99.6% |
| SNPE Vectan SP 7 | <<locked>> | 84% | 57,435 psi | 90% | 3438 fps | 98.7% |
| SNPE Vectan SP 9 | <<locked>> | 86% | 57,551 psi | 90% | 3468 fps | 99.7% |
| SNPE Vectan Tubal 3000 | <<locked>> | 84% | 55,622 psi | 87% | 3323 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 90% | 56,173 psi | 88% | 3320 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 94% | 56,246 psi | 88% | 3356 fps | 96.8% |
| Somchem S335 | <<locked>> | 84% | 55,448 psi | 87% | 3320 fps | 100% |
| Somchem S341 | <<locked>> | 84% | 56,681 psi | 89% | 3428 fps | 99.7% |
| Somchem S355 | <<locked>> | 90% | 54,882 psi | 86% | 3422 fps | 99.7% |
| Somchem S365ᴾ | <<locked>> | 100% | 57,261 psi | 90% | 3553 fps | 100% |
| Vihtavuori N133 | <<locked>> | 84% | 55,854 psi | 88% | 3307 fps | 100% |
| Vihtavuori N135 | <<locked>> | 86% | 55,317 psi | 87% | 3360 fps | 100% |
| Vihtavuori N140 | <<locked>> | 86% | 55,550 psi | 87% | 3363 fps | 100% |
| Vihtavuori N150 | <<locked>> | 92% | 56,231 psi | 88% | 3396 fps | 100% |
| Vihtavuori N160 | <<locked>> | 96% | 57,537 psi | 90% | 3478 fps | 99.1% |
| Vihtavuori N530 | <<locked>> | 82% | 54,940 psi | 86% | 3389 fps | 99.9% |
| Vihtavuori N540 | <<locked>> | 88% | 57,624 psi | 90% | 3415 fps | 100% |
| Vihtavuori N550 | <<locked>> | 96% | 56,942 psi | 89% | 3484 fps | 98.9% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 49,792 psi | 78% | 3415 fps | 98.7% |
| Winchester 6.5 StaBALL | <<locked>> | 94% | 54,143 psi | 85% | 3386 fps | 99.9% |
| Winchester 748 | <<locked>> | 82% | 55,259 psi | 87% | 3445 fps | 100% |
| Winchester 760 | <<locked>> | 94% | 55,419 psi | 87% | 3491 fps | 96.7% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 40,712 psi | 64% | 3327 fps | 98.8% |
| Winchester StaBALL Match | <<locked>> | 84% | 54,317 psi | 85% | 3415 fps | 99.7% |
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 2015 | <<locked>> | 80% | 53,650 psi | 84% | 3297 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 47,688 psi | 75% | 3222 fps | 100% |
| Accurate 3100 | <<locked>> | 98% | 44,918 psi | 70% | 3228 fps | 95.1% |
| Accurate 4064 | <<locked>> | 80% | 45,020 psi | 71% | 3212 fps | 100% |
| Accurate 4350 | <<locked>> | 86% | 41,031 psi | 64% | 3182 fps | 95.8% |
| ADI AR 2206H | <<locked>> | 80% | 49,429 psi | 77% | 3323 fps | 98.9% |
| ADI AR 2208 | <<locked>> | 80% | 42,003 psi | 66% | 3136 fps | 96.8% |
| ADI Benchmark 8208 | <<locked>> | 80% | 51,300 psi | 80% | 3330 fps | 99.7% |
| Alliant AR-Comp | <<locked>> | 80% | 52,112 psi | 82% | 3323 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 45,165 psi | 71% | 3350 fps | 97.4% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 42,293 psi | 66% | 3173 fps | 98.3% |
| Alliant Reloder-15 | <<locked>> | 80% | 45,194 psi | 71% | 3245 fps | 97.7% |
| Alliant Reloder-16 | <<locked>> | 86% | 39,639 psi | 62% | 3176 fps | 95.5% |
| Alliant Reloder-17 | 55.9 gr | 80% | 36,956 psi | 58% | 3130 fps | 96.4% |
| Alliant Reloder-23 | <<locked>> | 92% | 35,186 psi | 55% | 3061 fps | 95.6% |
| Alliant Reloder-26 | <<locked>> | 94% | 41,278 psi | 65% | 3287 fps | 95.4% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 48,660 psi | 76% | 3317 fps | 98% |
| Bofors RP3 | <<locked>> | 80% | 42,569 psi | 67% | 3182 fps | 98.4% |
| Bofors RP7 | <<locked>> | 90% | 51,358 psi | 80% | 3320 fps | 95% |
| Hodgdon Benchmark | <<locked>> | 80% | 52,736 psi | 83% | 3317 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 80% | 50,923 psi | 80% | 3356 fps | 99.9% |
| Hodgdon H380 | <<locked>> | 80% | 43,018 psi | 67% | 3179 fps | 95.8% |
| Hodgdon H414 | <<locked>> | 90% | 48,559 psi | 76% | 3353 fps | 95% |
| Hodgdon H4895 | <<locked>> | 80% | 49,966 psi | 78% | 3340 fps | 99.3% |
| Hodgdon Hybrid 100V | <<locked>> | 84% | 34,722 psi | 54% | 2995 fps | 95.6% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 45,948 psi | 72% | 3297 fps | 99.1% |
| Hodgdon Superformance | <<locked>> | 92% | 52,011 psi | 82% | 3438 fps | 95.4% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,890 psi | 42% | 1978 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 47,558 psi | 75% | 3274 fps | 99% |
| IMR 3031 | <<locked>> | 80% | 49,821 psi | 78% | 3340 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 44,092 psi | 69% | 3182 fps | 97.5% |
| IMR 4166 Enduron | <<locked>> | 82% | 49,356 psi | 77% | 3261 fps | 95.1% |
| IMR 4350 | <<locked>> | 94% | 51,692 psi | 81% | 3346 fps | 95.2% |
| IMR 4451 Enduron | <<locked>> | 88% | 49,676 psi | 78% | 3294 fps | 95.1% |
| IMR 4831 | <<locked>> | 86% | 39,160 psi | 61% | 3117 fps | 95.3% |
| IMR 4895 | <<locked>> | 80% | 46,325 psi | 73% | 3287 fps | 98.4% |
| IMR 8208 XBR | <<locked>> | 80% | 51,300 psi | 80% | 3330 fps | 99.7% |
| Lovex D073.6 | <<locked>> | 80% | 49,574 psi | 78% | 3307 fps | 100% |
| Lovex S060 | <<locked>> | 80% | 48,588 psi | 76% | 3241 fps | 98.8% |
| Lovex S062 | <<locked>> | 80% | 44,556 psi | 70% | 3196 fps | 99% |
| Lovex S065 | <<locked>> | 86% | 44,280 psi | 69% | 3176 fps | 95.3% |
| Lovex S070 | <<locked>> | 90% | 47,863 psi | 75% | 3274 fps | 95% |
| Norma 201 | <<locked>> | 80% | 48,747 psi | 76% | 3274 fps | 99.5% |
| Norma 202 | <<locked>> | 80% | 48,834 psi | 77% | 3278 fps | 100% |
| Norma 203B | <<locked>> | 80% | 44,599 psi | 70% | 3235 fps | 98.1% |
| Norma URP | <<locked>> | 86% | 40,205 psi | 63% | 3163 fps | 95.4% |
| Ramshot Big Game | <<locked>> | 80% | 44,121 psi | 69% | 3238 fps | 97.8% |
| Ramshot Hunter | <<locked>> | 92% | 47,601 psi | 75% | 3337 fps | 95.8% |
| Ramshot TAC | <<locked>> | 80% | 51,271 psi | 80% | 3327 fps | 97.3% |
| Ramshot Wild Boar | <<locked>> | 80% | 51,097 psi | 80% | 3356 fps | 99.1% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,441 psi | 43% | 2028 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 84% | 48,921 psi | 77% | 3281 fps | 95.7% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 47,776 psi | 75% | 3369 fps | 98.1% |
| ReloadSwiss RS 60 | 55.9 gr | 80% | 39,102 psi | 61% | 3209 fps | 99.2% |
| ReloadSwiss RS 62 | <<locked>> | 86% | 40,277 psi | 63% | 3186 fps | 95.2% |
| ReloadSwiss RS 70 | 62.4 gr | 88% | 42,351 psi | 66% | 3251 fps | 95.1% |
| Rottweil R 901 | <<locked>> | 80% | 53,040 psi | 83% | 3333 fps | 100% |
| Rottweil R 902 | <<locked>> | 80% | 46,659 psi | 73% | 3222 fps | 99.3% |
| Rottweil R 903 | <<locked>> | 80% | 40,277 psi | 63% | 3120 fps | 97.7% |
| Rottweil R 907 | <<locked>> | 90% | 51,358 psi | 80% | 3320 fps | 95% |
| Shooters World Long Rifle | <<locked>> | 86% | 44,280 psi | 69% | 3176 fps | 95.3% |
| Shooters World Match Rifle | <<locked>> | 80% | 49,574 psi | 78% | 3307 fps | 100% |
| Shooters World Precision | <<locked>> | 80% | 44,556 psi | 70% | 3196 fps | 99% |
| Shooters World SW4350 | <<locked>> | 90% | 47,863 psi | 75% | 3274 fps | 95% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 40,640 psi | 64% | 3163 fps | 97% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 50,401 psi | 79% | 3310 fps | 97.6% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 47,819 psi | 75% | 3281 fps | 98.6% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 49,429 psi | 77% | 3215 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 41,640 psi | 65% | 3054 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 90% | 49,748 psi | 78% | 3235 fps | 95.3% |
| Somchem S335 | <<locked>> | 80% | 49,298 psi | 77% | 3212 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 49,603 psi | 78% | 3297 fps | 98.9% |
| Somchem S355 | <<locked>> | 80% | 40,669 psi | 64% | 3123 fps | 97.6% |
| Somchem S365 | <<locked>> | 80% | 30,371 psi | 48% | 2923 fps | 95.2% |
| Vihtavuori N133 | <<locked>> | 80% | 49,647 psi | 78% | 3205 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 46,064 psi | 72% | 3199 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 46,354 psi | 73% | 3199 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 38,769 psi | 61% | 3045 fps | 98.4% |
| Vihtavuori N160 | <<locked>> | 84% | 39,291 psi | 62% | 3100 fps | 95% |
| Vihtavuori N530 | <<locked>> | 80% | 51,430 psi | 81% | 3327 fps | 99.8% |
| Vihtavuori N540 | <<locked>> | 80% | 44,889 psi | 70% | 3182 fps | 99.9% |
| Vihtavuori N550 | <<locked>> | 86% | 41,539 psi | 65% | 3169 fps | 95.6% |
| Vihtavuori N555 | <<locked>> | 92% | 38,638 psi | 61% | 3166 fps | 95.8% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 34,374 psi | 54% | 2940 fps | 95.8% |
| Winchester 748 | <<locked>> | 80% | 51,750 psi | 81% | 3383 fps | 100% |
| Winchester 760 | <<locked>> | 90% | 48,834 psi | 77% | 3360 fps | 95.1% |
| Winchester StaBALL HD | <<locked>> | 94% | 33,678 psi | 53% | 3094 fps | 95.5% |
| Winchester StaBALL Match | <<locked>> | 80% | 47,674 psi | 75% | 3287 fps | 99% |
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 88 powders for .270 WSM loaded with the .277 | 96gr | RWS Evolution Green. Alliant Power Pro 2000-MR delivers the highest muzzle velocity at 3,570 fps; across all powders the maximum-charge window runs from 2,205 fps to 3,570 fps. Accurate 3100 gives the best case fill at 100 %, and 88 of the 88 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (440 MPa), the top charges use 56–90 %, leaving at least 10 % headroom. The 96.0 gr projectile in 0.277" calls for a 1:9.5 twist; slower twists will usually not stabilise this weight. Accurate 3100, Alliant Reloder-23, Alliant Reloder-26 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, ReloadSwiss RS 60, Alliant Reloder-17 rank at the top here: for .270 WSM with the .277 | 96gr | RWS Evolution Green 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.