Load Specifications
Load data in caliber .270 Win. with .277 | 150gr | Winchester Powerpoint bullet and 88 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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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% | 55,869 psi | 90% | 2690 fps | 100% |
| Accurate 2700 | <<locked>> | 82% | 53,272 psi | 85% | 2707 fps | 98.6% |
| Accurate 3100ᴾ | <<locked>> | 100% | 55,143 psi | 88% | 2808 fps | 99.8% |
| Accurate 4064 | <<locked>> | 82% | 52,881 psi | 85% | 2697 fps | 100% |
| Accurate 4350 | <<locked>> | 90% | 53,359 psi | 86% | 2799 fps | 100% |
| Accurate MAGPRO | <<locked>> | 98% | 53,316 psi | 85% | 2887 fps | 95.9% |
| ADI AR 2208 | <<locked>> | 86% | 56,144 psi | 90% | 2776 fps | 100% |
| ADI AR 2209 | <<locked>> | 96% | 54,317 psi | 87% | 2844 fps | 98.2% |
| ADI AR 2213ᴾ | <<locked>> | 100% | 55,680 psi | 89% | 2894 fps | 97.3% |
| Alliant Power Pro 2000-MR | <<locked>> | 82% | 55,695 psi | 89% | 2900 fps | 100% |
| Alliant Reloder- TS 15.5 | <<locked>> | 84% | 53,577 psi | 86% | 2749 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 82% | 53,940 psi | 86% | 2772 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 92% | 54,244 psi | 87% | 2858 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 88% | 55,564 psi | 89% | 2881 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 96% | 53,679 psi | 86% | 2831 fps | 98.2% |
| Alliant Reloder-22ᴾ | <<locked>> | 100% | 54,665 psi | 88% | 2890 fps | 98.5% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 51,634 psi | 83% | 2822 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 44,802 psi | 72% | 2749 fps | 99.3% |
| Alliant Reloder-26 | <<locked>> | 98% | 55,506 psi | 89% | 2963 fps | 100% |
| Bofors RP15ᴾ | <<locked>> | 100% | 49,966 psi | 80% | 2815 fps | 97.5% |
| Bofors RP3 | <<locked>> | 84% | 54,578 psi | 88% | 2769 fps | 100% |
| Bofors RP5ᴾ | <<locked>> | 100% | 54,665 psi | 88% | 2890 fps | 98.5% |
| Bofors RP7 | <<locked>> | 88% | 53,809 psi | 86% | 2753 fps | 98.8% |
| Hodgdon H380 | <<locked>> | 84% | 54,766 psi | 88% | 2782 fps | 100% |
| Hodgdon H414 | <<locked>> | 90% | 55,622 psi | 89% | 2854 fps | 99.4% |
| Hodgdon H4350 | <<locked>> | 88% | 55,274 psi | 89% | 2812 fps | 98.6% |
| Hodgdon H4831 | <<locked>> | 98% | 55,869 psi | 90% | 2841 fps | 96.7% |
| Hodgdon H4831 SC | <<locked>> | 98% | 54,578 psi | 88% | 2822 fps | 96.5% |
| Hodgdon Hybrid 100V | <<locked>> | 94% | 54,665 psi | 88% | 2785 fps | 100% |
| Hodgdon LEVERevolution | <<locked>> | 82% | 56,072 psi | 90% | 2815 fps | 100% |
| Hodgdon Retumboᴾ | <<locked>> | 100% | 43,990 psi | 71% | 2785 fps | 96.8% |
| Hodgdon Superformance | <<locked>> | 90% | 55,738 psi | 89% | 2890 fps | 99.3% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,419 psi | 58% | 1726 fps | 100% |
| IMR 4064 | <<locked>> | 84% | 55,709 psi | 89% | 2759 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 82% | 54,665 psi | 88% | 2743 fps | 99.3% |
| IMR 4350 | <<locked>> | 92% | 54,795 psi | 88% | 2785 fps | 99% |
| IMR 4451 Enduron | <<locked>> | 88% | 55,564 psi | 89% | 2782 fps | 99.3% |
| IMR 4831 | <<locked>> | 92% | 53,824 psi | 86% | 2792 fps | 100% |
| IMR 4895 | <<locked>> | 82% | 55,347 psi | 89% | 2799 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 96% | 53,809 psi | 86% | 2772 fps | 96.5% |
| IMR 7828 SSCᴾ | <<locked>> | 100% | 53,040 psi | 85% | 2864 fps | 96.9% |
| Lovex S062 | <<locked>> | 84% | 55,956 psi | 90% | 2753 fps | 100% |
| Lovex S065 | <<locked>> | 90% | 55,637 psi | 89% | 2776 fps | 99.9% |
| Lovex S070 | <<locked>> | 90% | 53,606 psi | 86% | 2769 fps | 99.3% |
| Lovex S071ᴾ | <<locked>> | 100% | 45,745 psi | 73% | 2661 fps | 98.8% |
| Norma 203B | <<locked>> | 82% | 53,243 psi | 85% | 2759 fps | 100% |
| Norma 204 | <<locked>> | 92% | 55,405 psi | 89% | 2835 fps | 98.2% |
| Norma MRP | <<locked>> | 98% | 54,302 psi | 87% | 2917 fps | 99.4% |
| Norma URP | <<locked>> | 92% | 55,724 psi | 89% | 2838 fps | 100% |
| Ramshot Big Game | <<locked>> | 82% | 53,824 psi | 86% | 2782 fps | 100% |
| Ramshot Grandᴾ | <<locked>> | 100% | 53,519 psi | 86% | 2884 fps | 97.4% |
| Ramshot Hunter | <<locked>> | 92% | 54,375 psi | 87% | 2838 fps | 99.7% |
| Ramshot Magnumᴾ | <<locked>> | 100% | 47,732 psi | 77% | 2759 fps | 97.8% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 37,173 psi | 60% | 1768 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 84% | 54,665 psi | 88% | 2769 fps | 99.6% |
| ReloadSwiss RS 60 | <<locked>> | 86% | 55,100 psi | 88% | 2871 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 90% | 53,171 psi | 85% | 2822 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 92% | 55,434 psi | 89% | 2907 fps | 100% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 43,903 psi | 70% | 2776 fps | 97.9% |
| Rottweil R 902 | <<locked>> | 82% | 54,650 psi | 88% | 2717 fps | 100% |
| Rottweil R 903 | <<locked>> | 86% | 54,737 psi | 88% | 2766 fps | 100% |
| Rottweil R 904 | <<locked>> | 96% | 55,970 psi | 90% | 2815 fps | 97.5% |
| Rottweil R 905 | <<locked>> | 96% | 52,982 psi | 85% | 2818 fps | 98.2% |
| Rottweil R 907 | <<locked>> | 88% | 53,809 psi | 86% | 2753 fps | 98.8% |
| Shooters World Long Rifle | <<locked>> | 90% | 55,637 psi | 89% | 2776 fps | 99.9% |
| Shooters World Precision | <<locked>> | 84% | 55,956 psi | 90% | 2753 fps | 100% |
| Shooters World SW4350 | <<locked>> | 90% | 53,606 psi | 86% | 2769 fps | 99.3% |
| SNPE Vectan SP 11 | <<locked>> | 86% | 55,999 psi | 90% | 2818 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 86% | 55,564 psi | 89% | 2651 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 90% | 55,056 psi | 88% | 2730 fps | 99.3% |
| SNPE Vectan Tubal 8000 | <<locked>> | 98% | 56,246 psi | 90% | 2871 fps | 98.7% |
| Somchem S355 | <<locked>> | 86% | 54,505 psi | 87% | 2759 fps | 100% |
| Somchem S361 | <<locked>> | 94% | 54,143 psi | 87% | 2753 fps | 96.3% |
| Somchem S365 | <<locked>> | 94% | 55,303 psi | 89% | 2844 fps | 100% |
| Somchem S385 | <<locked>> | 96% | 53,563 psi | 86% | 2795 fps | 98.8% |
| Vihtavuori N135 | <<locked>> | 82% | 54,998 psi | 88% | 2677 fps | 100% |
| Vihtavuori N140 | <<locked>> | 82% | 55,216 psi | 89% | 2694 fps | 100% |
| Vihtavuori N150 | <<locked>> | 88% | 55,767 psi | 89% | 2733 fps | 100% |
| Vihtavuori N160 | <<locked>> | 90% | 54,201 psi | 87% | 2782 fps | 100% |
| Vihtavuori N165ᴾ | <<locked>> | 100% | 53,040 psi | 85% | 2772 fps | 98.5% |
| Vihtavuori N540 | <<locked>> | 82% | 53,243 psi | 85% | 2687 fps | 100% |
| Vihtavuori N550 | <<locked>> | 90% | 53,534 psi | 86% | 2789 fps | 100% |
| Vihtavuori N555 | <<locked>> | 98% | 54,259 psi | 87% | 2848 fps | 100% |
| Vihtavuori N560 | <<locked>> | 98% | 54,607 psi | 88% | 2907 fps | 96.9% |
| Winchester 6.5 StaBALL | <<locked>> | 90% | 53,722 psi | 86% | 2749 fps | 100% |
| Winchester 760 | <<locked>> | 90% | 55,898 psi | 90% | 2858 fps | 99.5% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 46,818 psi | 75% | 2887 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 98% | 53,650 psi | 86% | 2789 fps | 98.1% |
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 2495 | <<locked>> | 80% | 52,504 psi | 84% | 2644 fps | 100% |
| Accurate 2700 | <<locked>> | 80% | 49,951 psi | 80% | 2654 fps | 98.1% |
| Accurate 3100 | <<locked>> | 86% | 34,214 psi | 55% | 2428 fps | 95.7% |
| Accurate 4064 | <<locked>> | 80% | 49,777 psi | 80% | 2651 fps | 100% |
| Accurate 4350 | <<locked>> | 80% | 37,971 psi | 61% | 2526 fps | 98.5% |
| Accurate MAGPRO | <<locked>> | 96% | 49,748 psi | 80% | 2828 fps | 95% |
| ADI AR 2208 | <<locked>> | 80% | 46,688 psi | 75% | 2625 fps | 99.9% |
| ADI AR 2209 | <<locked>> | 88% | 41,959 psi | 67% | 2618 fps | 95.2% |
| ADI AR 2213 | <<locked>> | 96% | 48,602 psi | 78% | 2772 fps | 95.7% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 51,721 psi | 83% | 2838 fps | 100% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 47,239 psi | 76% | 2651 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 80% | 50,531 psi | 81% | 2720 fps | 100% |
| Alliant Reloder-16 | 45.4 gr | 80% | 36,985 psi | 59% | 2536 fps | 98.6% |
| Alliant Reloder-17 | <<locked>> | 80% | 41,974 psi | 67% | 2657 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 88% | 41,684 psi | 67% | 2615 fps | 95.3% |
| Alliant Reloder-22 | <<locked>> | 92% | 41,901 psi | 67% | 2661 fps | 95.6% |
| Alliant Reloder-23 | <<locked>> | 80% | 27,166 psi | 44% | 2297 fps | 96.4% |
| Alliant Reloder-25 | <<locked>> | 90% | 32,648 psi | 52% | 2467 fps | 95.6% |
| Alliant Reloder-26 | 51.4 gr | 82% | 31,111 psi | 50% | 2464 fps | 95.8% |
| Bofors RP15 | <<locked>> | 94% | 41,336 psi | 66% | 2648 fps | 95.2% |
| Bofors RP3 | <<locked>> | 80% | 47,732 psi | 77% | 2664 fps | 100% |
| Bofors RP5 | <<locked>> | 92% | 41,901 psi | 67% | 2661 fps | 95.6% |
| Bofors RP7 | <<locked>> | 80% | 41,872 psi | 67% | 2539 fps | 96.5% |
| Hodgdon H380 | <<locked>> | 80% | 48,008 psi | 77% | 2674 fps | 99.6% |
| Hodgdon H414 | <<locked>> | 80% | 39,871 psi | 64% | 2569 fps | 96.6% |
| Hodgdon H4350 | <<locked>> | 80% | 42,801 psi | 69% | 2589 fps | 96% |
| Hodgdon H4831 | <<locked>> | 94% | 48,747 psi | 78% | 2723 fps | 95% |
| Hodgdon H4831 SC | <<locked>> | 96% | 50,995 psi | 82% | 2762 fps | 95.6% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 34,548 psi | 55% | 2431 fps | 99% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 52,504 psi | 84% | 2766 fps | 100% |
| Hodgdon Retumbo | <<locked>> | 98% | 41,220 psi | 66% | 2720 fps | 95.7% |
| Hodgdon Superformance | <<locked>> | 80% | 38,856 psi | 62% | 2579 fps | 95.8% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,282 psi | 44% | 1542 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 49,124 psi | 79% | 2661 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 80% | 51,532 psi | 83% | 2694 fps | 98.9% |
| IMR 4350 | <<locked>> | 80% | 37,710 psi | 60% | 2470 fps | 95.2% |
| IMR 4451 Enduron | <<locked>> | 80% | 43,221 psi | 69% | 2566 fps | 97.3% |
| IMR 4831 | <<locked>> | 80% | 36,492 psi | 59% | 2480 fps | 98.2% |
| IMR 4895 | <<locked>> | 80% | 51,822 psi | 83% | 2746 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 92% | 47,572 psi | 76% | 2667 fps | 95% |
| IMR 7828 SSC | <<locked>> | 96% | 46,514 psi | 75% | 2746 fps | 95.2% |
| Lovex S062 | <<locked>> | 80% | 49,385 psi | 79% | 2654 fps | 100% |
| Lovex S065 | <<locked>> | 80% | 40,901 psi | 66% | 2523 fps | 98% |
| Lovex S070 | <<locked>> | 80% | 39,146 psi | 63% | 2503 fps | 96.5% |
| Lovex S071 | <<locked>> | 90% | 33,243 psi | 53% | 2405 fps | 95.4% |
| Norma 203B | <<locked>> | 80% | 49,879 psi | 80% | 2707 fps | 100% |
| Norma 204 | <<locked>> | 84% | 42,308 psi | 68% | 2605 fps | 95.3% |
| Norma MRP | 53.5 gr | 88% | 38,377 psi | 62% | 2615 fps | 95.9% |
| Norma URP | <<locked>> | 80% | 37,768 psi | 61% | 2520 fps | 98.3% |
| Ramshot Big Game | <<locked>> | 80% | 50,169 psi | 80% | 2726 fps | 100% |
| Ramshot Grand | <<locked>> | 96% | 46,412 psi | 74% | 2756 fps | 95.5% |
| Ramshot Hunter | <<locked>> | 80% | 36,506 psi | 59% | 2507 fps | 96.4% |
| Ramshot Magnum | <<locked>> | 94% | 38,392 psi | 62% | 2572 fps | 95% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,789 psi | 45% | 1581 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 48,109 psi | 77% | 2661 fps | 98.8% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 44,570 psi | 71% | 2710 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 37,652 psi | 60% | 2543 fps | 98.2% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 36,506 psi | 59% | 2546 fps | 97.5% |
| ReloadSwiss RS 76 | <<locked>> | 96% | 38,159 psi | 61% | 2641 fps | 95.7% |
| Rottweil R 902 | <<locked>> | 80% | 51,227 psi | 82% | 2667 fps | 100% |
| Rottweil R 903 | <<locked>> | 80% | 44,976 psi | 72% | 2612 fps | 100% |
| Rottweil R 904 | <<locked>> | 90% | 46,398 psi | 74% | 2651 fps | 95.3% |
| Rottweil R 905 | <<locked>> | 88% | 40,741 psi | 65% | 2595 fps | 95.2% |
| Rottweil R 907 | <<locked>> | 80% | 41,872 psi | 67% | 2539 fps | 96.5% |
| Shooters World Long Rifle | <<locked>> | 80% | 40,901 psi | 66% | 2523 fps | 98% |
| Shooters World Precision | <<locked>> | 80% | 49,385 psi | 79% | 2654 fps | 100% |
| Shooters World SW4350 | <<locked>> | 80% | 39,146 psi | 63% | 2503 fps | 96.5% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 46,021 psi | 74% | 2661 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 46,224 psi | 74% | 2520 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 40,001 psi | 64% | 2467 fps | 96.6% |
| SNPE Vectan Tubal 8000 | <<locked>> | 88% | 40,364 psi | 65% | 2592 fps | 95.1% |
| Somchem S355 | <<locked>> | 80% | 45,252 psi | 73% | 2612 fps | 100% |
| Somchem S361 | <<locked>> | 92% | 50,749 psi | 81% | 2700 fps | 95.5% |
| Somchem S365 | <<locked>> | 80% | 34,316 psi | 55% | 2480 fps | 99.8% |
| Somchem S385 | <<locked>> | 86% | 38,638 psi | 62% | 2523 fps | 95.5% |
| Vihtavuori N135 | <<locked>> | 80% | 51,721 psi | 83% | 2631 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 51,721 psi | 83% | 2644 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 43,178 psi | 69% | 2543 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 39,160 psi | 63% | 2520 fps | 98.6% |
| Vihtavuori N165 | <<locked>> | 92% | 40,654 psi | 65% | 2556 fps | 95.7% |
| Vihtavuori N540 | <<locked>> | 80% | 49,937 psi | 80% | 2641 fps | 100% |
| Vihtavuori N550 | <<locked>> | 80% | 38,566 psi | 62% | 2520 fps | 98.3% |
| Vihtavuori N555 | <<locked>> | 80% | 29,950 psi | 48% | 2372 fps | 96.5% |
| Vihtavuori N560 | <<locked>> | 94% | 47,456 psi | 76% | 2779 fps | 95% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 38,305 psi | 61% | 2493 fps | 99.8% |
| Winchester 760 | <<locked>> | 80% | 40,074 psi | 64% | 2575 fps | 96.6% |
| Winchester StaBALL HD | <<locked>> | 82% | 25,541 psi | 41% | 2326 fps | 96.2% |
| Winchester Supreme 780 | <<locked>> | 92% | 43,526 psi | 70% | 2618 fps | 95.8% |
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 94 powders for .270 Win. loaded with the .277 | 150gr | Winchester Powerpoint. Alliant Reloder-26 delivers the highest muzzle velocity at 2,963 fps; across all powders the maximum-charge window runs from 1,726 fps to 2,963 fps. Accurate 3100 gives the best case fill at 100 %, and 94 of the 94 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (430 MPa), the top charges use 57–90 %, leaving at least 10 % headroom. The 150.0 gr projectile in 0.277" calls for a 1:15.0 twist; slower twists will usually not stabilise this weight. Accurate 3100, ADI AR 2213, ADI AR 2217 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 Win. with the .277 | 150gr | Winchester Powerpoint they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, ADI AR 2217, ADI AR 2225, Baschieri & Pellagri 109 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.