Load Specifications
Load data in caliber .270 Win. with .277 | 154gr | Remington SP Extended-Range bullet and 86 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 Vihtavuori N560.
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 2700 | <<locked>> | 82% | 54,244 psi | 87% | 2690 fps | 98.9% |
| Accurate 3100 | <<locked>> | 98% | 52,678 psi | 84% | 2740 fps | 99.7% |
| Accurate 4064 | <<locked>> | 82% | 53,954 psi | 87% | 2677 fps | 100% |
| Accurate 4350 | <<locked>> | 90% | 54,621 psi | 88% | 2785 fps | 100% |
| Accurate MAGPRO | <<locked>> | 98% | 54,723 psi | 88% | 2877 fps | 96.5% |
| ADI AR 2208 | <<locked>> | 84% | 53,882 psi | 86% | 2707 fps | 100% |
| ADI AR 2209 | <<locked>> | 96% | 55,492 psi | 89% | 2828 fps | 98.6% |
| ADI AR 2213 | <<locked>> | 98% | 53,142 psi | 85% | 2825 fps | 97.1% |
| Alliant Reloder- TS 15.5 | <<locked>> | 84% | 54,607 psi | 88% | 2730 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 82% | 54,969 psi | 88% | 2753 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 92% | 55,448 psi | 89% | 2838 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 86% | 53,127 psi | 85% | 2808 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 96% | 54,853 psi | 88% | 2815 fps | 98.6% |
| Alliant Reloder-22ᴾ | <<locked>> | 100% | 56,028 psi | 90% | 2877 fps | 98.9% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 52,997 psi | 85% | 2808 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 45,876 psi | 74% | 2740 fps | 99.6% |
| Alliant Reloder-26 | <<locked>> | 96% | 52,881 psi | 85% | 2890 fps | 100% |
| Bofors RP15ᴾ | <<locked>> | 100% | 51,227 psi | 82% | 2802 fps | 98% |
| Bofors RP3 | <<locked>> | 84% | 55,709 psi | 89% | 2749 fps | 100% |
| Bofors RP5ᴾ | <<locked>> | 100% | 56,028 psi | 90% | 2877 fps | 98.9% |
| Bofors RP7 | <<locked>> | 88% | 54,810 psi | 88% | 2736 fps | 99.2% |
| Hodgdon H1000ᴾ | <<locked>> | 100% | 45,527 psi | 73% | 2680 fps | 96% |
| Hodgdon H380 | <<locked>> | 84% | 55,840 psi | 90% | 2762 fps | 100% |
| Hodgdon H414 | <<locked>> | 88% | 53,214 psi | 85% | 2782 fps | 99.4% |
| Hodgdon H4350 | <<locked>> | 88% | 56,362 psi | 90% | 2795 fps | 98.9% |
| Hodgdon H4831 | <<locked>> | 96% | 53,316 psi | 85% | 2769 fps | 96.5% |
| Hodgdon H4831 SC | <<locked>> | 98% | 55,796 psi | 89% | 2808 fps | 97% |
| Hodgdon Hybrid 100V | <<locked>> | 94% | 55,912 psi | 90% | 2766 fps | 100% |
| Hodgdon Retumboᴾ | <<locked>> | 100% | 45,063 psi | 72% | 2779 fps | 97.5% |
| Hodgdon Superformance | <<locked>> | 88% | 52,997 psi | 85% | 2815 fps | 99.2% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,521 psi | 59% | 1706 fps | 100% |
| IMR 4064 | <<locked>> | 82% | 53,432 psi | 86% | 2694 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 82% | 55,579 psi | 89% | 2723 fps | 99.5% |
| IMR 4350 | <<locked>> | 92% | 55,869 psi | 90% | 2769 fps | 99.3% |
| IMR 4451 Enduron | <<locked>> | 86% | 53,098 psi | 85% | 2710 fps | 99.2% |
| IMR 4831 | <<locked>> | 92% | 55,027 psi | 88% | 2776 fps | 100% |
| IMR 4895 | <<locked>> | 82% | 56,405 psi | 90% | 2779 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 96% | 54,868 psi | 88% | 2759 fps | 97% |
| IMR 7828 SSCᴾ | <<locked>> | 100% | 54,273 psi | 87% | 2854 fps | 97.5% |
| Lovex S062 | <<locked>> | 82% | 53,693 psi | 86% | 2687 fps | 100% |
| Lovex S065 | <<locked>> | 88% | 53,417 psi | 86% | 2710 fps | 99.8% |
| Lovex S070 | <<locked>> | 90% | 54,679 psi | 88% | 2753 fps | 99.5% |
| Lovex S071ᴾ | <<locked>> | 100% | 46,905 psi | 75% | 2651 fps | 99.1% |
| Norma 203B | <<locked>> | 82% | 54,259 psi | 87% | 2740 fps | 100% |
| Norma 204 | <<locked>> | 90% | 52,939 psi | 85% | 2762 fps | 98.1% |
| Norma MRP | <<locked>> | 98% | 55,753 psi | 89% | 2904 fps | 99.6% |
| Norma URP | <<locked>> | 90% | 53,563 psi | 86% | 2772 fps | 100% |
| Ramshot Big Game | <<locked>> | 82% | 54,940 psi | 88% | 2762 fps | 100% |
| Ramshot Grandᴾ | <<locked>> | 100% | 54,853 psi | 88% | 2874 fps | 97.9% |
| Ramshot Hunter | <<locked>> | 92% | 55,593 psi | 89% | 2822 fps | 99.9% |
| Ramshot Magnumᴾ | <<locked>> | 100% | 48,965 psi | 79% | 2753 fps | 98.3% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 37,275 psi | 60% | 1749 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 84% | 55,695 psi | 89% | 2749 fps | 99.8% |
| ReloadSwiss RS 60 | <<locked>> | 86% | 56,434 psi | 90% | 2851 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 90% | 54,447 psi | 87% | 2805 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 90% | 53,055 psi | 85% | 2835 fps | 100% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 45,020 psi | 72% | 2772 fps | 98.5% |
| Rottweil R 902 | <<locked>> | 82% | 55,622 psi | 89% | 2697 fps | 100% |
| Rottweil R 903 | <<locked>> | 86% | 55,869 psi | 90% | 2746 fps | 100% |
| Rottweil R 904 | <<locked>> | 94% | 53,780 psi | 86% | 2749 fps | 97.4% |
| Rottweil R 905 | <<locked>> | 96% | 54,215 psi | 87% | 2805 fps | 98.6% |
| Rottweil R 907 | <<locked>> | 88% | 54,810 psi | 88% | 2736 fps | 99.2% |
| Shooters World Long Rifle | <<locked>> | 88% | 53,417 psi | 86% | 2710 fps | 99.8% |
| Shooters World Precision | <<locked>> | 82% | 53,693 psi | 86% | 2687 fps | 100% |
| Shooters World SW4350 | <<locked>> | 90% | 54,679 psi | 88% | 2753 fps | 99.5% |
| SNPE Vectan SP 11 | <<locked>> | 84% | 53,577 psi | 86% | 2749 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 84% | 53,185 psi | 85% | 2585 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 90% | 56,101 psi | 90% | 2710 fps | 99.5% |
| SNPE Vectan Tubal 8000 | <<locked>> | 96% | 53,751 psi | 86% | 2799 fps | 98.5% |
| Somchem S355 | <<locked>> | 86% | 55,550 psi | 89% | 2740 fps | 100% |
| Somchem S361 | <<locked>> | 94% | 55,245 psi | 89% | 2740 fps | 96.8% |
| Somchem S365 | <<locked>> | 92% | 52,881 psi | 85% | 2772 fps | 100% |
| Somchem S385 | <<locked>> | 96% | 54,781 psi | 88% | 2782 fps | 99.2% |
| Vihtavuori N135 | <<locked>> | 82% | 56,043 psi | 90% | 2654 fps | 100% |
| Vihtavuori N140 | <<locked>> | 82% | 56,202 psi | 90% | 2671 fps | 100% |
| Vihtavuori N150 | <<locked>> | 86% | 53,534 psi | 86% | 2667 fps | 100% |
| Vihtavuori N160 | <<locked>> | 90% | 55,361 psi | 89% | 2762 fps | 100% |
| Vihtavuori N165ᴾ | <<locked>> | 100% | 54,273 psi | 87% | 2759 fps | 98.9% |
| Vihtavuori N540 | <<locked>> | 82% | 54,215 psi | 87% | 2667 fps | 100% |
| Vihtavuori N550 | <<locked>> | 90% | 54,665 psi | 88% | 2772 fps | 100% |
| Vihtavuori N555 | <<locked>> | 98% | 55,637 psi | 89% | 2831 fps | 100% |
| Vihtavuori N560 | <<locked>> | 98% | 55,941 psi | 90% | 2894 fps | 97.4% |
| Winchester 6.5 StaBALL | <<locked>> | 90% | 54,882 psi | 88% | 2730 fps | 100% |
| Winchester 760 | <<locked>> | 88% | 53,490 psi | 86% | 2789 fps | 99.4% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 48,443 psi | 78% | 2874 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 98% | 54,911 psi | 88% | 2776 fps | 98.5% |
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 2700 | <<locked>> | 80% | 50,850 psi | 82% | 2638 fps | 98.5% |
| Accurate 3100 | <<locked>> | 84% | 32,779 psi | 53% | 2365 fps | 95.5% |
| Accurate 4064 | <<locked>> | 80% | 50,792 psi | 81% | 2631 fps | 100% |
| Accurate 4350 | <<locked>> | 80% | 38,914 psi | 62% | 2513 fps | 98.9% |
| Accurate MAGPRO | <<locked>> | 96% | 51,082 psi | 82% | 2818 fps | 95.7% |
| ADI AR 2208 | <<locked>> | 80% | 47,529 psi | 76% | 2608 fps | 100% |
| ADI AR 2209 | <<locked>> | 86% | 40,089 psi | 64% | 2549 fps | 95% |
| ADI AR 2213 | <<locked>> | 94% | 46,688 psi | 75% | 2707 fps | 95.5% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 48,182 psi | 77% | 2631 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 80% | 51,503 psi | 83% | 2700 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 80% | 37,797 psi | 61% | 2523 fps | 99% |
| Alliant Reloder-17 | <<locked>> | 80% | 42,975 psi | 69% | 2644 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 86% | 39,871 psi | 64% | 2546 fps | 95.1% |
| Alliant Reloder-22 | <<locked>> | 90% | 40,118 psi | 64% | 2592 fps | 95.3% |
| Alliant Reloder-23 | <<locked>> | 80% | 27,804 psi | 45% | 2290 fps | 97.1% |
| Alliant Reloder-25 | <<locked>> | 88% | 31,459 psi | 50% | 2405 fps | 95.4% |
| Alliant Reloder-26 | 50.1 gr | 80% | 29,660 psi | 48% | 2395 fps | 95.4% |
| Bofors RP15 | <<locked>> | 94% | 42,337 psi | 68% | 2638 fps | 95.9% |
| Bofors RP3 | <<locked>> | 80% | 48,733 psi | 78% | 2644 fps | 100% |
| Bofors RP5 | <<locked>> | 90% | 40,118 psi | 64% | 2592 fps | 95.3% |
| Bofors RP7 | <<locked>> | 80% | 42,670 psi | 68% | 2523 fps | 97% |
| Hodgdon H1000 | <<locked>> | 98% | 42,801 psi | 69% | 2625 fps | 95.1% |
| Hodgdon H380 | <<locked>> | 80% | 48,965 psi | 79% | 2657 fps | 99.8% |
| Hodgdon H414 | <<locked>> | 80% | 40,770 psi | 65% | 2559 fps | 97.1% |
| Hodgdon H4350 | <<locked>> | 80% | 43,656 psi | 70% | 2575 fps | 96.6% |
| Hodgdon H4831 | <<locked>> | 94% | 49,821 psi | 80% | 2713 fps | 95.7% |
| Hodgdon H4831 SC | <<locked>> | 94% | 48,950 psi | 78% | 2697 fps | 95.5% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 35,389 psi | 57% | 2421 fps | 99.4% |
| Hodgdon Retumbo | <<locked>> | 96% | 39,537 psi | 63% | 2651 fps | 95.5% |
| Hodgdon Superformance | <<locked>> | 80% | 39,755 psi | 64% | 2572 fps | 96.5% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,354 psi | 44% | 1526 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 50,009 psi | 80% | 2641 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 80% | 52,402 psi | 84% | 2674 fps | 99.2% |
| IMR 4350 | <<locked>> | 80% | 38,479 psi | 62% | 2457 fps | 95.8% |
| IMR 4451 Enduron | <<locked>> | 80% | 44,005 psi | 71% | 2552 fps | 97.8% |
| IMR 4831 | <<locked>> | 80% | 37,347 psi | 60% | 2467 fps | 98.6% |
| IMR 4895 | <<locked>> | 80% | 52,823 psi | 85% | 2726 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 92% | 48,515 psi | 78% | 2654 fps | 95.6% |
| IMR 7828 SSC | <<locked>> | 96% | 47,572 psi | 76% | 2740 fps | 95.9% |
| Lovex S062 | <<locked>> | 80% | 50,299 psi | 81% | 2635 fps | 100% |
| Lovex S065 | <<locked>> | 80% | 41,698 psi | 67% | 2507 fps | 98.4% |
| Lovex S070 | <<locked>> | 80% | 39,943 psi | 64% | 2490 fps | 97.1% |
| Lovex S071 | <<locked>> | 88% | 32,010 psi | 51% | 2346 fps | 95.2% |
| Norma 203B | <<locked>> | 80% | 50,836 psi | 82% | 2687 fps | 100% |
| Norma 204 | <<locked>> | 82% | 40,408 psi | 65% | 2536 fps | 95% |
| Norma MRP | 52.3 gr | 86% | 36,753 psi | 59% | 2546 fps | 95.7% |
| Norma URP | <<locked>> | 80% | 38,638 psi | 62% | 2507 fps | 98.8% |
| Ramshot Big Game | <<locked>> | 80% | 51,213 psi | 82% | 2710 fps | 100% |
| Ramshot Grand | <<locked>> | 94% | 44,353 psi | 71% | 2690 fps | 95.3% |
| Ramshot Hunter | <<locked>> | 80% | 37,362 psi | 60% | 2493 fps | 97% |
| Ramshot Magnum | <<locked>> | 94% | 39,349 psi | 63% | 2566 fps | 95.8% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,876 psi | 45% | 1562 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 49,008 psi | 79% | 2644 fps | 99.1% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 45,614 psi | 73% | 2690 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 38,595 psi | 62% | 2530 fps | 98.6% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 37,333 psi | 60% | 2536 fps | 98.1% |
| ReloadSwiss RS 76 | <<locked>> | 94% | 36,419 psi | 58% | 2572 fps | 95.4% |
| Rottweil R 902 | <<locked>> | 80% | 52,141 psi | 84% | 2648 fps | 100% |
| Rottweil R 903 | <<locked>> | 80% | 45,934 psi | 74% | 2595 fps | 100% |
| Rottweil R 904 | <<locked>> | 88% | 44,295 psi | 71% | 2585 fps | 95.1% |
| Rottweil R 905 | <<locked>> | 86% | 38,928 psi | 62% | 2526 fps | 95% |
| Rottweil R 907 | <<locked>> | 80% | 42,670 psi | 68% | 2523 fps | 97% |
| Shooters World Long Rifle | <<locked>> | 80% | 41,698 psi | 67% | 2507 fps | 98.4% |
| Shooters World Precision | <<locked>> | 80% | 50,299 psi | 81% | 2635 fps | 100% |
| Shooters World SW4350 | <<locked>> | 80% | 39,943 psi | 64% | 2490 fps | 97.1% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 46,992 psi | 75% | 2644 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 47,050 psi | 75% | 2500 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 40,770 psi | 65% | 2454 fps | 97.2% |
| SNPE Vectan Tubal 8000 | <<locked>> | 88% | 41,336 psi | 66% | 2579 fps | 95.8% |
| Somchem S355 | <<locked>> | 80% | 46,151 psi | 74% | 2592 fps | 100% |
| Somchem S361 | <<locked>> | 90% | 48,617 psi | 78% | 2635 fps | 95.3% |
| Somchem S365 | <<locked>> | 80% | 35,215 psi | 56% | 2470 fps | 99.9% |
| Somchem S385 | <<locked>> | 84% | 37,188 psi | 60% | 2461 fps | 95.3% |
| Vihtavuori N135 | <<locked>> | 80% | 52,707 psi | 85% | 2612 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 52,663 psi | 84% | 2621 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 44,048 psi | 71% | 2523 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 40,030 psi | 64% | 2507 fps | 99% |
| Vihtavuori N165 | <<locked>> | 90% | 38,914 psi | 62% | 2493 fps | 95.5% |
| Vihtavuori N540 | <<locked>> | 80% | 50,865 psi | 82% | 2618 fps | 100% |
| Vihtavuori N550 | <<locked>> | 80% | 39,421 psi | 63% | 2507 fps | 98.7% |
| Vihtavuori N555 | <<locked>> | 80% | 30,777 psi | 49% | 2365 fps | 97.2% |
| Vihtavuori N560 | 57.1 gr | 94% | 48,602 psi | 78% | 2772 fps | 95.8% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 39,131 psi | 63% | 2477 fps | 99.9% |
| Winchester 760 | <<locked>> | 80% | 40,988 psi | 66% | 2562 fps | 97.2% |
| Winchester StaBALL HD | <<locked>> | 80% | 24,526 psi | 39% | 2260 fps | 95.8% |
| Winchester Supreme 780 | <<locked>> | 90% | 41,582 psi | 67% | 2552 fps | 95.6% |
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 | 154gr | Remington SP Extended-Range. Norma MRP delivers the highest muzzle velocity at 2,904 fps; across all powders the maximum-charge window runs from 1,706 fps to 2,904 fps. ADI AR 2217 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 52–90 %, leaving at least 10 % headroom. The 154.0 gr projectile in 0.277" calls for a 1:15.5 twist; slower twists will usually not stabilise this weight. ADI AR 2217, ADI AR 2225, 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-26, Norma MRP, Vihtavuori N560 rank at the top here: for .270 Win. with the .277 | 154gr | Remington SP Extended-Range they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, ADI AR 2217, Baschieri & Pellagri 109, Norma 217 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.