Load Specifications
Load data in caliber .270 Win. with .277 | 160gr | Nosler Partition bullet and 92 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Alliant Reloder-19, ReloadSwiss RS 70 and Alliant Reloder-26.
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% | 54,853 psi | 88% | 2572 fps | 100% |
| Accurate 2700 | <<locked>> | 86% | 53,548 psi | 86% | 2598 fps | 98.8% |
| Accurate 3100ᴾ | <<locked>> | 100% | 53,432 psi | 86% | 2684 fps | 99.7% |
| Accurate 4064 | <<locked>> | 84% | 55,056 psi | 88% | 2621 fps | 100% |
| Accurate 4350 | <<locked>> | 92% | 55,535 psi | 89% | 2726 fps | 100% |
| ADI AR 2208 | <<locked>> | 86% | 55,071 psi | 88% | 2654 fps | 100% |
| ADI AR 2209 | <<locked>> | 96% | 52,939 psi | 85% | 2717 fps | 98.2% |
| ADI AR 2213ᴾ | <<locked>> | 100% | 53,969 psi | 87% | 2762 fps | 97.2% |
| Alliant Power Pro 2000-MR | <<locked>> | 82% | 54,186 psi | 87% | 2769 fps | 100% |
| Alliant Reloder- TS 15.5 | <<locked>> | 86% | 55,811 psi | 89% | 2674 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 84% | 56,101 psi | 90% | 2697 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 94% | 56,347 psi | 90% | 2779 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 88% | 53,882 psi | 86% | 2753 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 98% | 55,825 psi | 90% | 2759 fps | 98.7% |
| Alliant Reloder-22ᴾ | <<locked>> | 100% | 52,765 psi | 85% | 2759 fps | 98.4% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 50,053 psi | 80% | 2697 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 43,642 psi | 70% | 2631 fps | 99.3% |
| Alliant Reloder-26 | <<locked>> | 98% | 53,185 psi | 85% | 2825 fps | 100% |
| Bofors RP15ᴾ | <<locked>> | 100% | 48,646 psi | 78% | 2690 fps | 97.5% |
| Bofors RP3 | <<locked>> | 84% | 53,229 psi | 85% | 2644 fps | 100% |
| Bofors RP5ᴾ | <<locked>> | 100% | 52,765 psi | 85% | 2759 fps | 98.4% |
| Bofors RP7 | <<locked>> | 90% | 55,898 psi | 90% | 2677 fps | 99.2% |
| Hodgdon H380 | <<locked>> | 84% | 53,577 psi | 86% | 2657 fps | 100% |
| Hodgdon H414 | <<locked>> | 88% | 55,419 psi | 89% | 2746 fps | 99.5% |
| Hodgdon H4350 | <<locked>> | 92% | 55,709 psi | 89% | 2710 fps | 98.8% |
| Hodgdon H4831 SC | <<locked>> | 98% | 52,968 psi | 85% | 2694 fps | 96.3% |
| Hodgdon Hybrid 100V | <<locked>> | 94% | 53,258 psi | 85% | 2661 fps | 100% |
| Hodgdon LEVERevolution | <<locked>> | 84% | 55,056 psi | 88% | 2694 fps | 100% |
| Hodgdon Retumboᴾ | <<locked>> | 100% | 42,554 psi | 68% | 2654 fps | 96.6% |
| Hodgdon Superformance | <<locked>> | 90% | 54,012 psi | 87% | 2759 fps | 99.3% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,405 psi | 58% | 1644 fps | 100% |
| Hodgdon VARGET | <<locked>> | 84% | 54,665 psi | 88% | 2644 fps | 100% |
| IMR 3031 | <<locked>> | 82% | 54,056 psi | 87% | 2615 fps | 100% |
| IMR 4064 | <<locked>> | 86% | 54,070 psi | 87% | 2628 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 88% | 56,434 psi | 90% | 2661 fps | 99.5% |
| IMR 4350 | <<locked>> | 92% | 53,635 psi | 86% | 2664 fps | 99% |
| IMR 4451 Enduron | <<locked>> | 88% | 54,346 psi | 87% | 2654 fps | 99.3% |
| IMR 4831 | <<locked>> | 96% | 53,432 psi | 86% | 2684 fps | 100% |
| IMR 4895 | <<locked>> | 82% | 54,027 psi | 87% | 2671 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 98% | 55,999 psi | 90% | 2703 fps | 97.1% |
| IMR 7828 SSCᴾ | <<locked>> | 100% | 55,535 psi | 89% | 2802 fps | 97.6% |
| Lovex S060 | <<locked>> | 82% | 56,115 psi | 90% | 2621 fps | 100% |
| Lovex S062 | <<locked>> | 84% | 54,955 psi | 88% | 2631 fps | 100% |
| Lovex S065 | <<locked>> | 90% | 54,375 psi | 87% | 2651 fps | 99.9% |
| Lovex S070 | <<locked>> | 92% | 55,622 psi | 89% | 2694 fps | 99.6% |
| Lovex S071ᴾ | <<locked>> | 100% | 44,280 psi | 71% | 2543 fps | 98.7% |
| Norma 201 | <<locked>> | 82% | 56,289 psi | 90% | 2641 fps | 100% |
| Norma 203B | <<locked>> | 84% | 55,390 psi | 89% | 2680 fps | 100% |
| Norma 204 | <<locked>> | 92% | 54,244 psi | 87% | 2713 fps | 98.2% |
| Norma MRPᴾ | <<locked>> | 100% | 56,159 psi | 90% | 2841 fps | 99.6% |
| Norma URP | <<locked>> | 92% | 54,375 psi | 87% | 2713 fps | 100% |
| Ramshot Big Game | <<locked>> | 84% | 56,289 psi | 90% | 2710 fps | 100% |
| Ramshot Grand | <<locked>> | 98% | 55,448 psi | 89% | 2808 fps | 97.9% |
| Ramshot Hunter | <<locked>> | 92% | 53,214 psi | 85% | 2720 fps | 99.7% |
| Ramshot Magnumᴾ | <<locked>> | 100% | 51,953 psi | 83% | 2730 fps | 98.8% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 37,202 psi | 60% | 1683 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 84% | 53,403 psi | 86% | 2644 fps | 99.6% |
| ReloadSwiss RS 60 | <<locked>> | 86% | 53,563 psi | 86% | 2746 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 92% | 55,390 psi | 89% | 2753 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 92% | 53,940 psi | 86% | 2779 fps | 100% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 42,496 psi | 68% | 2651 fps | 97.7% |
| Rottweil R 902 | <<locked>> | 82% | 53,403 psi | 86% | 2592 fps | 100% |
| Rottweil R 903 | <<locked>> | 86% | 53,374 psi | 86% | 2641 fps | 100% |
| Rottweil R 904 | <<locked>> | 96% | 54,839 psi | 88% | 2694 fps | 97.5% |
| Rottweil R 905 | <<locked>> | 98% | 55,071 psi | 88% | 2746 fps | 98.7% |
| Rottweil R 907 | <<locked>> | 90% | 55,898 psi | 90% | 2677 fps | 99.2% |
| Shooters World Long Rifle | <<locked>> | 90% | 54,375 psi | 87% | 2651 fps | 99.9% |
| Shooters World Precision | <<locked>> | 84% | 54,955 psi | 88% | 2631 fps | 100% |
| Shooters World SW4350 | <<locked>> | 92% | 55,622 psi | 89% | 2694 fps | 99.6% |
| SNPE Vectan SP 11 | <<locked>> | 86% | 54,737 psi | 88% | 2697 fps | 100% |
| SNPE Vectan SP 9 | <<locked>> | 82% | 55,985 psi | 90% | 2671 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 86% | 54,563 psi | 87% | 2533 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 90% | 54,128 psi | 87% | 2612 fps | 99.3% |
| SNPE Vectan Tubal 8000 | <<locked>> | 98% | 54,592 psi | 88% | 2743 fps | 98.6% |
| Somchem S355 | <<locked>> | 86% | 53,447 psi | 86% | 2638 fps | 100% |
| Somchem S361 | <<locked>> | 94% | 52,736 psi | 85% | 2631 fps | 96.2% |
| Somchem S365 | <<locked>> | 94% | 53,403 psi | 86% | 2713 fps | 100% |
| Somchem S385 | <<locked>> | 98% | 55,492 psi | 89% | 2720 fps | 99.2% |
| Unknown powder | <<locked>> | 90% | 54,795 psi | 88% | 2713 fps | 100% |
| Vihtavuori N135 | <<locked>> | 82% | 53,766 psi | 86% | 2552 fps | 100% |
| Vihtavuori N140 | <<locked>> | 82% | 53,867 psi | 86% | 2569 fps | 100% |
| Vihtavuori N150 | <<locked>> | 88% | 54,346 psi | 87% | 2608 fps | 100% |
| Vihtavuori N160 | <<locked>> | 92% | 56,362 psi | 90% | 2703 fps | 100% |
| Vihtavuori N165ᴾ | <<locked>> | 100% | 51,488 psi | 83% | 2648 fps | 98.4% |
| Vihtavuori N540 | <<locked>> | 84% | 55,550 psi | 89% | 2615 fps | 100% |
| Vihtavuori N550 | <<locked>> | 92% | 55,463 psi | 89% | 2713 fps | 100% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 56,014 psi | 90% | 2769 fps | 100% |
| Vihtavuori N560 | <<locked>> | 98% | 52,924 psi | 85% | 2776 fps | 96.7% |
| Winchester 6.5 StaBALL | <<locked>> | 92% | 55,970 psi | 90% | 2677 fps | 100% |
| Winchester 760 | <<locked>> | 88% | 55,419 psi | 89% | 2746 fps | 99.5% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 45,078 psi | 72% | 2756 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 96% | 53,795 psi | 86% | 2690 fps | 98.3% |
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% | 51,300 psi | 82% | 2526 fps | 100% |
| Accurate 2700 | <<locked>> | 80% | 44,019 psi | 71% | 2444 fps | 97.1% |
| Accurate 3100 | <<locked>> | 86% | 33,228 psi | 53% | 2320 fps | 95.8% |
| Accurate 4064 | <<locked>> | 80% | 48,631 psi | 78% | 2533 fps | 100% |
| Accurate 4350 | <<locked>> | 80% | 36,869 psi | 59% | 2411 fps | 98.5% |
| ADI AR 2208 | <<locked>> | 80% | 45,963 psi | 74% | 2513 fps | 99.9% |
| ADI AR 2209 | <<locked>> | 88% | 40,915 psi | 66% | 2500 fps | 95.2% |
| ADI AR 2213 | <<locked>> | 96% | 47,514 psi | 76% | 2654 fps | 95.6% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 50,705 psi | 81% | 2717 fps | 100% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 46,267 psi | 74% | 2533 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 80% | 49,400 psi | 79% | 2595 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 80% | 36,100 psi | 58% | 2421 fps | 98.6% |
| Alliant Reloder-17 | <<locked>> | 80% | 40,915 psi | 66% | 2543 fps | 100% |
| Alliant Reloder-19 | 47.6 gr | 88% | 40,640 psi | 65% | 2497 fps | 95.3% |
| Alliant Reloder-22 | <<locked>> | 92% | 40,712 psi | 65% | 2546 fps | 95.5% |
| Alliant Reloder-23 | <<locked>> | 80% | 26,469 psi | 42% | 2195 fps | 96.5% |
| Alliant Reloder-25 | <<locked>> | 90% | 31,879 psi | 51% | 2359 fps | 95.6% |
| Alliant Reloder-26 | 47.6 gr | 82% | 30,023 psi | 48% | 2352 fps | 95.7% |
| Bofors RP15 | <<locked>> | 94% | 40,161 psi | 64% | 2530 fps | 95.1% |
| Bofors RP3 | <<locked>> | 80% | 46,630 psi | 75% | 2546 fps | 100% |
| Bofors RP5 | <<locked>> | 92% | 40,712 psi | 65% | 2546 fps | 95.5% |
| Bofors RP7 | <<locked>> | 80% | 41,017 psi | 66% | 2425 fps | 96.6% |
| Hodgdon H380 | <<locked>> | 80% | 47,050 psi | 75% | 2556 fps | 99.7% |
| Hodgdon H414 | <<locked>> | 80% | 42,177 psi | 68% | 2523 fps | 97.5% |
| Hodgdon H4350 | <<locked>> | 80% | 38,508 psi | 62% | 2408 fps | 95% |
| Hodgdon H4831 SC | <<locked>> | 96% | 49,879 psi | 80% | 2641 fps | 95.6% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 33,591 psi | 54% | 2323 fps | 99.1% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 48,356 psi | 78% | 2598 fps | 100% |
| Hodgdon Retumbo | <<locked>> | 98% | 40,089 psi | 64% | 2598 fps | 95.7% |
| Hodgdon Superformance | <<locked>> | 80% | 37,724 psi | 60% | 2464 fps | 95.8% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,311 psi | 44% | 1467 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 48,341 psi | 78% | 2549 fps | 100% |
| IMR 3031 | <<locked>> | 80% | 50,807 psi | 81% | 2569 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 45,020 psi | 72% | 2487 fps | 99.9% |
| IMR 4166 Enduron | <<locked>> | 80% | 44,280 psi | 71% | 2464 fps | 97.9% |
| IMR 4350 | <<locked>> | 80% | 36,782 psi | 59% | 2359 fps | 95.2% |
| IMR 4451 Enduron | <<locked>> | 80% | 42,453 psi | 68% | 2454 fps | 97.4% |
| IMR 4831 | <<locked>> | 80% | 32,343 psi | 52% | 2297 fps | 97.3% |
| IMR 4895 | <<locked>> | 80% | 50,633 psi | 81% | 2621 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 92% | 46,557 psi | 75% | 2549 fps | 95% |
| IMR 7828 SSC | <<locked>> | 94% | 45,426 psi | 73% | 2628 fps | 95.2% |
| Lovex S060 | <<locked>> | 80% | 52,997 psi | 85% | 2575 fps | 100% |
| Lovex S062 | <<locked>> | 80% | 48,588 psi | 78% | 2539 fps | 100% |
| Lovex S065 | <<locked>> | 80% | 40,074 psi | 64% | 2408 fps | 98.1% |
| Lovex S070 | <<locked>> | 80% | 38,348 psi | 61% | 2392 fps | 96.6% |
| Lovex S071 | <<locked>> | 90% | 32,227 psi | 52% | 2297 fps | 95.4% |
| Norma 201 | <<locked>> | 80% | 52,779 psi | 85% | 2592 fps | 100% |
| Norma 203B | <<locked>> | 80% | 48,733 psi | 78% | 2585 fps | 100% |
| Norma 204 | <<locked>> | 84% | 41,394 psi | 66% | 2490 fps | 95.3% |
| Norma MRP | <<locked>> | 88% | 37,144 psi | 60% | 2497 fps | 95.8% |
| Norma URP | <<locked>> | 80% | 36,898 psi | 59% | 2411 fps | 98.4% |
| Ramshot Big Game | <<locked>> | 80% | 49,182 psi | 79% | 2608 fps | 100% |
| Ramshot Grand | <<locked>> | 92% | 44,411 psi | 71% | 2618 fps | 95.2% |
| Ramshot Hunter | <<locked>> | 80% | 35,766 psi | 57% | 2398 fps | 96.5% |
| Ramshot Magnum | <<locked>> | 92% | 38,537 psi | 62% | 2484 fps | 95.4% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,862 psi | 45% | 1506 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 47,036 psi | 75% | 2543 fps | 98.8% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 43,511 psi | 70% | 2592 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 36,622 psi | 59% | 2428 fps | 98.2% |
| ReloadSwiss RS 70 | 46.1 gr | 80% | 35,737 psi | 57% | 2438 fps | 97.6% |
| ReloadSwiss RS 76 | <<locked>> | 96% | 36,840 psi | 59% | 2520 fps | 95.5% |
| Rottweil R 902 | <<locked>> | 80% | 50,357 psi | 81% | 2549 fps | 100% |
| Rottweil R 903 | <<locked>> | 80% | 44,034 psi | 71% | 2497 fps | 100% |
| Rottweil R 904 | <<locked>> | 90% | 45,382 psi | 73% | 2536 fps | 95.3% |
| Rottweil R 905 | <<locked>> | 88% | 39,566 psi | 63% | 2480 fps | 95.2% |
| Rottweil R 907 | <<locked>> | 80% | 41,017 psi | 66% | 2425 fps | 96.6% |
| Shooters World Long Rifle | <<locked>> | 80% | 40,074 psi | 64% | 2408 fps | 98.1% |
| Shooters World Precision | <<locked>> | 80% | 48,588 psi | 78% | 2539 fps | 100% |
| Shooters World SW4350 | <<locked>> | 80% | 38,348 psi | 61% | 2392 fps | 96.6% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 45,107 psi | 72% | 2549 fps | 100% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 52,547 psi | 84% | 2621 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 45,310 psi | 73% | 2405 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 39,102 psi | 63% | 2356 fps | 96.7% |
| SNPE Vectan Tubal 8000 | <<locked>> | 88% | 39,189 psi | 63% | 2474 fps | 95% |
| Somchem S355 | <<locked>> | 80% | 44,251 psi | 71% | 2493 fps | 100% |
| Somchem S361 | <<locked>> | 92% | 49,545 psi | 79% | 2579 fps | 95.5% |
| Somchem S365 | <<locked>> | 80% | 33,272 psi | 53% | 2369 fps | 99.8% |
| Somchem S385 | <<locked>> | 86% | 37,724 psi | 60% | 2415 fps | 95.5% |
| Unknown powder | <<locked>> | 80% | 39,581 psi | 63% | 2457 fps | 98.5% |
| Vihtavuori N135 | <<locked>> | 80% | 50,589 psi | 81% | 2513 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 50,792 psi | 81% | 2526 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 42,322 psi | 68% | 2428 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 38,101 psi | 61% | 2405 fps | 98.6% |
| Vihtavuori N165 | <<locked>> | 92% | 39,450 psi | 63% | 2441 fps | 95.6% |
| Vihtavuori N540 | <<locked>> | 80% | 48,979 psi | 79% | 2523 fps | 100% |
| Vihtavuori N550 | <<locked>> | 80% | 37,681 psi | 60% | 2411 fps | 98.4% |
| Vihtavuori N555 | <<locked>> | 80% | 29,080 psi | 47% | 2267 fps | 96.6% |
| Vihtavuori N560 | <<locked>> | 94% | 46,151 psi | 74% | 2657 fps | 95% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 37,246 psi | 60% | 2379 fps | 99.8% |
| Winchester 760 | <<locked>> | 80% | 42,177 psi | 68% | 2523 fps | 97.5% |
| Winchester StaBALL HD | <<locked>> | 82% | 24,947 psi | 40% | 2224 fps | 96.3% |
| Winchester Supreme 780 | <<locked>> | 88% | 40,640 psi | 65% | 2467 fps | 95.2% |
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 92 powders for .270 Win. loaded with the .277 | 160gr | Nosler Partition. Norma MRP delivers the highest muzzle velocity at 2,841 fps; across all powders the maximum-charge window runs from 1,644 fps to 2,841 fps. Accurate 3100 gives the best case fill at 100 %, and 92 of the 92 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (430 MPa), the top charges use 58–90 %, leaving at least 10 % headroom. The 160.0 gr projectile in 0.277" calls for a 1:10.5 twist; slower twists will usually not stabilise this weight. Accurate 3100, ADI AR 2213, Alliant Reloder-22 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-19, ReloadSwiss RS 70, Alliant Reloder-26 rank at the top here: for .270 Win. with the .277 | 160gr | Nosler Partition 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.