Load Specifications
Load data in caliber .270 Win. with .277 | 90gr | Sierra HP Varminter bullet and 87 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Alliant Power Pro 2000-MR, ReloadSwiss RS 60 and ReloadSwiss RS 52.
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>> | 88% | 55,405 psi | 89% | 3379 fps | 100% |
| Accurate 2460 | <<locked>> | 84% | 53,969 psi | 87% | 3392 fps | 100% |
| Accurate 2495 | <<locked>> | 92% | 53,403 psi | 86% | 3386 fps | 100% |
| Accurate 2520 | <<locked>> | 88% | 53,940 psi | 86% | 3435 fps | 99.9% |
| Accurate 4064 | <<locked>> | 94% | 53,040 psi | 85% | 3419 fps | 100% |
| Accurate 4350ᴾ | <<locked>> | 100% | 48,936 psi | 78% | 3392 fps | 96% |
| Accurate LT-30 | <<locked>> | 82% | 54,636 psi | 88% | 3320 fps | 100% |
| Accurate LT-32 | <<locked>> | 82% | 55,013 psi | 88% | 3346 fps | 99.9% |
| ADI AR 2206H | <<locked>> | 90% | 54,665 psi | 88% | 3458 fps | 98.4% |
| ADI AR 2208 | <<locked>> | 96% | 55,738 psi | 89% | 3451 fps | 98% |
| ADI AR 2219 | <<locked>> | 82% | 55,680 psi | 89% | 3451 fps | 100% |
| ADI Benchmark 8208 | <<locked>> | 88% | 53,838 psi | 86% | 3412 fps | 99.1% |
| Alliant AR-Comp | <<locked>> | 88% | 53,388 psi | 86% | 3409 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 84% | 55,129 psi | 88% | 3537 fps | 98.9% |
| Alliant Power Pro 2000-MR | <<locked>> | 92% | 54,085 psi | 87% | 3563 fps | 97.6% |
| Alliant Reloder- TS 15.5 | <<locked>> | 96% | 55,085 psi | 88% | 3471 fps | 99.1% |
| Alliant Reloder-10x | <<locked>> | 84% | 54,824 psi | 88% | 3389 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 94% | 55,738 psi | 89% | 3491 fps | 98.2% |
| Alliant Reloder-16ᴾ | <<locked>> | 100% | 48,196 psi | 77% | 3399 fps | 96% |
| Alliant Reloder-17ᴾ | <<locked>> | 100% | 56,434 psi | 90% | 3596 fps | 99.2% |
| Baschieri & Pellagri 106 | <<locked>> | 82% | 54,041 psi | 87% | 3297 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 90% | 54,418 psi | 87% | 3455 fps | 97.4% |
| Bofors RP3 | <<locked>> | 96% | 55,883 psi | 90% | 3488 fps | 99.3% |
| Hodgdon Benchmark | <<locked>> | 88% | 55,854 psi | 90% | 3406 fps | 99.6% |
| Hodgdon BL-C2 | <<locked>> | 88% | 52,895 psi | 85% | 3432 fps | 99.4% |
| Hodgdon CFE223 | <<locked>> | 86% | 54,534 psi | 87% | 3537 fps | 97.9% |
| Hodgdon H322 | <<locked>> | 86% | 53,243 psi | 85% | 3412 fps | 100% |
| Hodgdon H335 | <<locked>> | 82% | 54,969 psi | 88% | 3438 fps | 100% |
| Hodgdon H380 | <<locked>> | 94% | 53,664 psi | 86% | 3428 fps | 96.5% |
| Hodgdon H4198 | <<locked>> | 82% | 56,318 psi | 90% | 3379 fps | 100% |
| Hodgdon H4895 | <<locked>> | 90% | 55,216 psi | 89% | 3474 fps | 98.9% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 44,251 psi | 71% | 3264 fps | 96.7% |
| Hodgdon LEVERevolution | <<locked>> | 94% | 54,099 psi | 87% | 3494 fps | 99.1% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 34,664 psi | 56% | 2188 fps | 100% |
| Hodgdon VARGET | <<locked>> | 94% | 55,143 psi | 88% | 3451 fps | 98.8% |
| IMR 3031 | <<locked>> | 94% | 56,043 psi | 90% | 3501 fps | 100% |
| IMR 4064 | <<locked>> | 96% | 54,143 psi | 87% | 3415 fps | 97.9% |
| IMR 4198 | <<locked>> | 84% | 55,027 psi | 88% | 3356 fps | 100% |
| IMR 4895 | <<locked>> | 92% | 53,563 psi | 86% | 3468 fps | 98.3% |
| IMR 8208 XBR | <<locked>> | 88% | 53,838 psi | 86% | 3412 fps | 99.1% |
| Lovex D073.5 | <<locked>> | 84% | 53,838 psi | 86% | 3392 fps | 99.6% |
| Lovex D073.6 | <<locked>> | 90% | 53,940 psi | 86% | 3435 fps | 99.9% |
| Lovex S060 | <<locked>> | 90% | 54,563 psi | 87% | 3383 fps | 98.4% |
| Lovex S062 | <<locked>> | 94% | 54,476 psi | 87% | 3428 fps | 99.3% |
| Norma 201 | <<locked>> | 90% | 53,301 psi | 85% | 3399 fps | 99.1% |
| Norma 202 | <<locked>> | 90% | 53,708 psi | 86% | 3415 fps | 100% |
| Norma 203B | <<locked>> | 94% | 54,897 psi | 88% | 3474 fps | 98.5% |
| Ramshot Big Game | <<locked>> | 94% | 55,796 psi | 89% | 3504 fps | 98.5% |
| Ramshot TAC | <<locked>> | 88% | 54,520 psi | 87% | 3409 fps | 96% |
| Ramshot Wild Boar | <<locked>> | 88% | 53,737 psi | 86% | 3438 fps | 98.2% |
| Ramshot X-Terminator | <<locked>> | 86% | 54,998 psi | 88% | 3406 fps | 98.3% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 34,998 psi | 56% | 2241 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 84% | 53,156 psi | 85% | 3396 fps | 99.7% |
| ReloadSwiss RS 52 | <<locked>> | 92% | 55,898 psi | 90% | 3566 fps | 98.1% |
| ReloadSwiss RS 60 | <<locked>> | 98% | 56,072 psi | 90% | 3609 fps | 100% |
| Rottweil R 901 | <<locked>> | 88% | 54,099 psi | 87% | 3399 fps | 99.9% |
| Rottweil R 902 | <<locked>> | 92% | 53,751 psi | 86% | 3396 fps | 99.2% |
| Rottweil R 903 | <<locked>> | 98% | 55,390 psi | 89% | 3471 fps | 99% |
| Shooters World Match Rifle | <<locked>> | 90% | 53,940 psi | 86% | 3435 fps | 99.9% |
| Shooters World Precision | <<locked>> | 94% | 54,476 psi | 87% | 3428 fps | 99.3% |
| Shooters World Tactical Rifle | <<locked>> | 82% | 53,127 psi | 85% | 3356 fps | 98.8% |
| SNPE Vectan SP 10 | <<locked>> | 82% | 55,970 psi | 90% | 3455 fps | 100% |
| SNPE Vectan SP 11 | <<locked>> | 96% | 53,795 psi | 86% | 3474 fps | 98.2% |
| SNPE Vectan SP 3 | <<locked>> | 84% | 55,666 psi | 89% | 3419 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 90% | 56,391 psi | 90% | 3448 fps | 97% |
| SNPE Vectan SP 9 | <<locked>> | 90% | 53,026 psi | 85% | 3412 fps | 98.1% |
| SNPE Vectan Tubal 3000 | <<locked>> | 90% | 55,100 psi | 88% | 3353 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 96% | 55,027 psi | 88% | 3343 fps | 100% |
| Somchem S321 | <<locked>> | 86% | 55,230 psi | 89% | 3448 fps | 99.5% |
| Somchem S335 | <<locked>> | 90% | 54,418 psi | 87% | 3346 fps | 100% |
| Somchem S341 | <<locked>> | 90% | 55,608 psi | 89% | 3438 fps | 98.5% |
| Somchem S355 | <<locked>> | 98% | 56,014 psi | 90% | 3474 fps | 99% |
| Somchem S365ᴾ | <<locked>> | 100% | 43,352 psi | 70% | 3317 fps | 98% |
| Unknown powderᴾ | <<locked>> | 100% | 53,330 psi | 86% | 3468 fps | 96.2% |
| Vihtavuori N120 | <<locked>> | 82% | 55,564 psi | 89% | 3284 fps | 100% |
| Vihtavuori N130 | <<locked>> | 86% | 53,621 psi | 86% | 3314 fps | 100% |
| Vihtavuori N133 | <<locked>> | 92% | 54,317 psi | 87% | 3337 fps | 100% |
| Vihtavuori N135 | <<locked>> | 94% | 56,246 psi | 90% | 3432 fps | 100% |
| Vihtavuori N140 | <<locked>> | 92% | 53,403 psi | 86% | 3376 fps | 100% |
| Vihtavuori N150ᴾ | <<locked>> | 100% | 50,459 psi | 81% | 3337 fps | 99.1% |
| Vihtavuori N160ᴾ | <<locked>> | 100% | 54,215 psi | 87% | 3438 fps | 97% |
| Vihtavuori N530 | <<locked>> | 86% | 53,258 psi | 85% | 3419 fps | 99.2% |
| Vihtavuori N540 | <<locked>> | 92% | 53,127 psi | 85% | 3396 fps | 100% |
| Vihtavuori N550ᴾ | <<locked>> | 100% | 54,230 psi | 87% | 3491 fps | 97% |
| Winchester 6.5 StaBALLᴾ | <<locked>> | 100% | 52,823 psi | 85% | 3379 fps | 98.7% |
| Winchester 748 | <<locked>> | 86% | 54,549 psi | 87% | 3474 fps | 99.7% |
| Winchester StaBALL Match | <<locked>> | 84% | 54,621 psi | 88% | 3455 fps | 98.9% |
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% | 42,917 psi | 69% | 3150 fps | 100% |
| Accurate 2460 | <<locked>> | 80% | 47,065 psi | 75% | 3264 fps | 99.5% |
| Accurate 2495 | <<locked>> | 80% | 35,447 psi | 57% | 3018 fps | 99.5% |
| Accurate 2520 | <<locked>> | 80% | 40,727 psi | 65% | 3166 fps | 98.2% |
| Accurate 4064 | <<locked>> | 80% | 33,475 psi | 54% | 2982 fps | 97.2% |
| Accurate 4350 | <<locked>> | 98% | 45,527 psi | 73% | 3320 fps | 95% |
| Accurate LT-30 | <<locked>> | 80% | 51,213 psi | 82% | 3261 fps | 100% |
| Accurate LT-32 | <<locked>> | 80% | 51,576 psi | 83% | 3284 fps | 99.7% |
| ADI AR 2206H | <<locked>> | 82% | 42,264 psi | 68% | 3196 fps | 95.6% |
| ADI AR 2208 | <<locked>> | 88% | 43,265 psi | 69% | 3196 fps | 95.1% |
| ADI AR 2219 | <<locked>> | 80% | 51,764 psi | 83% | 3386 fps | 100% |
| ADI Benchmark 8208 | <<locked>> | 80% | 41,582 psi | 67% | 3156 fps | 96.8% |
| Alliant AR-Comp | <<locked>> | 80% | 40,596 psi | 65% | 3176 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 80% | 48,167 psi | 77% | 3399 fps | 97.7% |
| Alliant Power Pro 2000-MR | 56.1 gr | 88% | 47,224 psi | 76% | 3412 fps | 95.8% |
| Alliant Reloder- TS 15.5 | <<locked>> | 84% | 37,275 psi | 60% | 3084 fps | 95% |
| Alliant Reloder-10x | <<locked>> | 80% | 48,515 psi | 78% | 3284 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 86% | 43,207 psi | 69% | 3232 fps | 95.2% |
| Alliant Reloder-16 | <<locked>> | 98% | 45,194 psi | 72% | 3327 fps | 95% |
| Alliant Reloder-17 | <<locked>> | 90% | 39,943 psi | 64% | 3228 fps | 95.1% |
| Baschieri & Pellagri 106 | <<locked>> | 80% | 50,589 psi | 81% | 3241 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 86% | 47,616 psi | 76% | 3320 fps | 95.9% |
| Bofors RP3 | <<locked>> | 84% | 36,941 psi | 59% | 3084 fps | 95% |
| Hodgdon Benchmark | <<locked>> | 80% | 43,424 psi | 70% | 3156 fps | 97.9% |
| Hodgdon BL-C2 | <<locked>> | 80% | 40,001 psi | 64% | 3159 fps | 97% |
| Hodgdon CFE223 | <<locked>> | 80% | 43,859 psi | 70% | 3314 fps | 95.3% |
| Hodgdon H322 | <<locked>> | 80% | 43,947 psi | 70% | 3228 fps | 99.7% |
| Hodgdon H335 | <<locked>> | 80% | 51,213 psi | 82% | 3373 fps | 99.9% |
| Hodgdon H380 | <<locked>> | 92% | 49,908 psi | 80% | 3356 fps | 95.6% |
| Hodgdon H4198 | <<locked>> | 80% | 53,026 psi | 85% | 3320 fps | 100% |
| Hodgdon H4895 | <<locked>> | 80% | 39,871 psi | 64% | 3143 fps | 95.4% |
| Hodgdon Hybrid 100V | <<locked>> | 98% | 41,394 psi | 66% | 3196 fps | 95.8% |
| Hodgdon LEVERevolution | <<locked>> | 84% | 38,624 psi | 62% | 3156 fps | 95.5% |
| Hodgdon TrailBoss | <<locked>> | 80% | 25,556 psi | 41% | 1959 fps | 100% |
| Hodgdon VARGET | <<locked>> | 84% | 40,234 psi | 65% | 3136 fps | 95.5% |
| IMR 3031 | <<locked>> | 80% | 35,259 psi | 57% | 3071 fps | 98.9% |
| IMR 4064 | <<locked>> | 88% | 42,105 psi | 68% | 3163 fps | 95% |
| IMR 4198 | <<locked>> | 80% | 48,689 psi | 78% | 3248 fps | 100% |
| IMR 4895 | <<locked>> | 84% | 41,394 psi | 66% | 3205 fps | 95.4% |
| IMR 8208 XBR | <<locked>> | 80% | 41,582 psi | 67% | 3156 fps | 96.8% |
| Lovex D073.5 | <<locked>> | 80% | 46,949 psi | 75% | 3261 fps | 98.8% |
| Lovex D073.6 | <<locked>> | 80% | 38,000 psi | 61% | 3100 fps | 97.5% |
| Lovex S060 | <<locked>> | 80% | 40,147 psi | 64% | 3074 fps | 95% |
| Lovex S062 | <<locked>> | 82% | 37,202 psi | 60% | 3051 fps | 95.5% |
| Norma 201 | <<locked>> | 80% | 38,653 psi | 62% | 3081 fps | 96% |
| Norma 202 | <<locked>> | 80% | 38,783 psi | 62% | 3100 fps | 98.3% |
| Norma 203B | <<locked>> | 86% | 42,511 psi | 68% | 3219 fps | 95.7% |
| Ramshot Big Game | <<locked>> | 86% | 42,221 psi | 68% | 3225 fps | 95.3% |
| Ramshot TAC | <<locked>> | 86% | 51,024 psi | 82% | 3340 fps | 95.2% |
| Ramshot Wild Boar | <<locked>> | 80% | 40,654 psi | 65% | 3156 fps | 95% |
| Ramshot X-Terminator | <<locked>> | 80% | 45,150 psi | 72% | 3209 fps | 96.3% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 25,744 psi | 41% | 2005 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 46,630 psi | 75% | 3271 fps | 99% |
| ReloadSwiss RS 52 | 53.1 gr | 86% | 45,121 psi | 72% | 3350 fps | 95.7% |
| ReloadSwiss RS 60 | 52.7 gr | 84% | 34,664 psi | 56% | 3091 fps | 95.5% |
| Rottweil R 901 | <<locked>> | 80% | 42,467 psi | 68% | 3163 fps | 98.8% |
| Rottweil R 902 | <<locked>> | 80% | 36,680 psi | 59% | 3018 fps | 95.2% |
| Rottweil R 903 | <<locked>> | 88% | 39,639 psi | 64% | 3143 fps | 95.6% |
| Shooters World Match Rifle | <<locked>> | 80% | 38,000 psi | 61% | 3100 fps | 97.5% |
| Shooters World Precision | <<locked>> | 82% | 37,202 psi | 60% | 3051 fps | 95.5% |
| Shooters World Tactical Rifle | <<locked>> | 80% | 49,501 psi | 79% | 3287 fps | 98.3% |
| SNPE Vectan SP 10 | <<locked>> | 80% | 52,257 psi | 84% | 3389 fps | 99.9% |
| SNPE Vectan SP 11 | <<locked>> | 88% | 41,176 psi | 66% | 3205 fps | 95.1% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 49,153 psi | 79% | 3304 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 86% | 48,950 psi | 78% | 3304 fps | 95.2% |
| SNPE Vectan SP 9 | <<locked>> | 82% | 40,828 psi | 65% | 3150 fps | 95.1% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 40,277 psi | 65% | 3061 fps | 98.6% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 33,170 psi | 53% | 2887 fps | 97.8% |
| Somchem S321 | <<locked>> | 80% | 44,817 psi | 72% | 3241 fps | 97.9% |
| Somchem S335 | <<locked>> | 80% | 39,769 psi | 64% | 3058 fps | 99.1% |
| Somchem S341 | <<locked>> | 82% | 42,192 psi | 68% | 3166 fps | 95.5% |
| Somchem S355 | <<locked>> | 88% | 40,524 psi | 65% | 3156 fps | 95.6% |
| Somchem S365 | <<locked>> | 94% | 35,520 psi | 57% | 3110 fps | 95.2% |
| Unknown powder | <<locked>> | 98% | 49,835 psi | 80% | 3399 fps | 95.4% |
| Vihtavuori N120 | <<locked>> | 80% | 52,330 psi | 84% | 3235 fps | 100% |
| Vihtavuori N130 | <<locked>> | 80% | 44,527 psi | 71% | 3150 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 37,652 psi | 60% | 3009 fps | 99.6% |
| Vihtavuori N135 | <<locked>> | 80% | 35,723 psi | 57% | 3028 fps | 99.5% |
| Vihtavuori N140 | <<locked>> | 80% | 36,100 psi | 58% | 3012 fps | 98% |
| Vihtavuori N150 | <<locked>> | 88% | 34,418 psi | 55% | 2972 fps | 95.1% |
| Vihtavuori N160 | <<locked>> | 96% | 47,065 psi | 75% | 3301 fps | 95.3% |
| Vihtavuori N530 | <<locked>> | 80% | 43,569 psi | 70% | 3219 fps | 97.5% |
| Vihtavuori N540 | <<locked>> | 80% | 35,984 psi | 58% | 3025 fps | 97.5% |
| Vihtavuori N550 | <<locked>> | 96% | 47,485 psi | 76% | 3356 fps | 95.3% |
| Winchester 6.5 StaBALL | <<locked>> | 92% | 40,045 psi | 64% | 3107 fps | 95.5% |
| Winchester 748 | <<locked>> | 80% | 43,976 psi | 71% | 3264 fps | 98.3% |
| Winchester StaBALL Match | <<locked>> | 80% | 46,876 psi | 75% | 3304 fps | 97.5% |
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 110 powders for .270 Win. loaded with the .277 | 90gr | Sierra HP Varminter. ReloadSwiss RS 60 delivers the highest muzzle velocity at 3,609 fps; across all powders the maximum-charge window runs from 2,188 fps to 3,609 fps. Accurate 4350 gives the best case fill at 100 %, and 110 of the 110 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (430 MPa), the top charges use 55–90 %, leaving at least 10 % headroom. The 90.0 gr projectile in 0.277" calls for a 1:15.0 twist; slower twists will usually not stabilise this weight. Accurate 4350, Alliant Reloder-16, Alliant Reloder-17 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 Power Pro 2000-MR, ReloadSwiss RS 60, ReloadSwiss RS 52 rank at the top here: for .270 Win. with the .277 | 90gr | Sierra HP Varminter they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, Accurate 2700, Alliant Reloder-23, Bofors RP7 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.