Load Specifications
Load data in caliber .270 Win. with .277 | 150gr | Hornady InterLock bullet and 93 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are ReloadSwiss RS 70, Alliant Reloder-26 and Ramshot Grand.
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% | 54,911 psi | 88% | 2674 fps | 100% |
| Accurate 2700 | <<locked>> | 86% | 53,708 psi | 86% | 2697 fps | 98.6% |
| Accurate 3100ᴾ | <<locked>> | 100% | 53,679 psi | 86% | 2782 fps | 99.6% |
| Accurate 4064 | <<locked>> | 84% | 55,259 psi | 89% | 2726 fps | 100% |
| Accurate 4350 | <<locked>> | 92% | 55,898 psi | 90% | 2831 fps | 100% |
| ADI AR 2208 | <<locked>> | 86% | 55,143 psi | 88% | 2756 fps | 100% |
| ADI AR 2209 | <<locked>> | 96% | 53,214 psi | 85% | 2818 fps | 97.9% |
| ADI AR 2213ᴾ | <<locked>> | 100% | 54,433 psi | 87% | 2867 fps | 96.9% |
| Alliant Power Pro 2000-MR | <<locked>> | 82% | 54,288 psi | 87% | 2874 fps | 100% |
| Alliant Power Pro Varmint | <<locked>> | 96% | 53,345 psi | 86% | 2815 fps | 97.9% |
| Alliant Reloder- TS 15.5 | <<locked>> | 86% | 56,101 psi | 90% | 2779 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 84% | 56,173 psi | 90% | 2799 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 94% | 56,405 psi | 90% | 2884 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 88% | 54,215 psi | 87% | 2858 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 98% | 55,956 psi | 90% | 2861 fps | 98.4% |
| Alliant Reloder-22ᴾ | <<locked>> | 100% | 53,272 psi | 85% | 2864 fps | 98.2% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 50,169 psi | 80% | 2799 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 43,888 psi | 70% | 2726 fps | 99.1% |
| Alliant Reloder-26 | <<locked>> | 98% | 53,708 psi | 86% | 2933 fps | 100% |
| Bofors RP15ᴾ | <<locked>> | 100% | 48,675 psi | 78% | 2785 fps | 97.1% |
| Bofors RP3 | <<locked>> | 84% | 53,490 psi | 86% | 2749 fps | 100% |
| Bofors RP5ᴾ | <<locked>> | 100% | 53,272 psi | 85% | 2864 fps | 98.2% |
| Bofors RP7 | <<locked>> | 90% | 56,217 psi | 90% | 2782 fps | 99% |
| Hodgdon H380 | <<locked>> | 84% | 53,795 psi | 86% | 2762 fps | 99.9% |
| Hodgdon H414 | <<locked>> | 88% | 55,637 psi | 89% | 2848 fps | 99.4% |
| Hodgdon H4350 | <<locked>> | 92% | 56,188 psi | 90% | 2818 fps | 98.6% |
| Hodgdon H4831 SC | <<locked>> | 98% | 53,316 psi | 85% | 2792 fps | 96% |
| Hodgdon Hybrid 100V | <<locked>> | 94% | 53,345 psi | 86% | 2759 fps | 100% |
| Hodgdon LEVERevolution | <<locked>> | 84% | 55,274 psi | 89% | 2799 fps | 100% |
| Hodgdon Retumboᴾ | <<locked>> | 100% | 42,917 psi | 69% | 2749 fps | 96.2% |
| Hodgdon Superformance | <<locked>> | 90% | 54,302 psi | 87% | 2864 fps | 99.1% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,347 psi | 58% | 1716 fps | 100% |
| Hodgdon VARGET | <<locked>> | 84% | 54,911 psi | 88% | 2749 fps | 100% |
| IMR 3031 | <<locked>> | 82% | 54,114 psi | 87% | 2717 fps | 100% |
| IMR 4064 | <<locked>> | 86% | 54,360 psi | 87% | 2733 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 88% | 56,405 psi | 90% | 2762 fps | 99.4% |
| IMR 4350 | <<locked>> | 92% | 53,679 psi | 86% | 2762 fps | 98.8% |
| IMR 4451 Enduron | <<locked>> | 88% | 54,404 psi | 87% | 2756 fps | 99.1% |
| IMR 4831 | <<locked>> | 96% | 53,795 psi | 86% | 2785 fps | 100% |
| IMR 4895 | <<locked>> | 82% | 54,244 psi | 87% | 2776 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 98% | 56,144 psi | 90% | 2802 fps | 96.8% |
| IMR 7828 SSCᴾ | <<locked>> | 100% | 55,840 psi | 90% | 2904 fps | 97.3% |
| Lovex S060 | <<locked>> | 82% | 56,217 psi | 90% | 2723 fps | 100% |
| Lovex S062 | <<locked>> | 84% | 54,882 psi | 88% | 2733 fps | 100% |
| Lovex S065 | <<locked>> | 90% | 54,404 psi | 87% | 2753 fps | 99.8% |
| Lovex S070 | <<locked>> | 92% | 55,724 psi | 89% | 2795 fps | 99.4% |
| Lovex S071ᴾ | <<locked>> | 100% | 44,643 psi | 72% | 2638 fps | 98.5% |
| Norma 201 | <<locked>> | 82% | 56,318 psi | 90% | 2743 fps | 100% |
| Norma 203B | <<locked>> | 84% | 55,463 psi | 89% | 2785 fps | 100% |
| Norma 204 | <<locked>> | 92% | 54,288 psi | 87% | 2812 fps | 97.9% |
| Norma MRP | <<locked>> | 98% | 52,895 psi | 85% | 2890 fps | 99.1% |
| Norma URP | <<locked>> | 92% | 54,433 psi | 87% | 2815 fps | 100% |
| Ramshot Big Game | <<locked>> | 82% | 52,562 psi | 84% | 2759 fps | 100% |
| Ramshot Grand | <<locked>> | 98% | 55,912 psi | 90% | 2913 fps | 97.7% |
| Ramshot Hunter | <<locked>> | 92% | 53,243 psi | 85% | 2815 fps | 99.6% |
| Ramshot Magnumᴾ | <<locked>> | 100% | 52,431 psi | 84% | 2831 fps | 98.6% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 37,101 psi | 59% | 1759 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 84% | 53,751 psi | 86% | 2746 fps | 99.4% |
| ReloadSwiss RS 60 | <<locked>> | 86% | 53,693 psi | 86% | 2848 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 92% | 55,651 psi | 89% | 2854 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 92% | 54,056 psi | 87% | 2881 fps | 100% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 42,685 psi | 68% | 2743 fps | 97.3% |
| Rottweil R 902 | <<locked>> | 82% | 53,534 psi | 86% | 2697 fps | 100% |
| Rottweil R 903 | <<locked>> | 86% | 53,330 psi | 86% | 2740 fps | 100% |
| Rottweil R 904 | <<locked>> | 96% | 54,926 psi | 88% | 2789 fps | 97.1% |
| Rottweil R 905 | <<locked>> | 98% | 55,274 psi | 89% | 2848 fps | 98.4% |
| Rottweil R 907 | <<locked>> | 90% | 56,217 psi | 90% | 2782 fps | 99% |
| Shooters World Long Rifle | <<locked>> | 90% | 54,404 psi | 87% | 2753 fps | 99.8% |
| Shooters World Precision | <<locked>> | 84% | 54,882 psi | 88% | 2733 fps | 100% |
| Shooters World SW4350 | <<locked>> | 92% | 55,724 psi | 89% | 2795 fps | 99.4% |
| SNPE Vectan SP 11 | <<locked>> | 86% | 55,013 psi | 88% | 2799 fps | 100% |
| SNPE Vectan SP 9 | <<locked>> | 82% | 55,927 psi | 90% | 2772 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 86% | 54,549 psi | 87% | 2631 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 90% | 54,259 psi | 87% | 2710 fps | 99.1% |
| SNPE Vectan Tubal 8000 | <<locked>> | 98% | 54,795 psi | 88% | 2841 fps | 98.3% |
| Somchem S355 | <<locked>> | 86% | 53,461 psi | 86% | 2740 fps | 100% |
| Somchem S361 | <<locked>> | 94% | 52,968 psi | 85% | 2726 fps | 95.9% |
| Somchem S365 | <<locked>> | 94% | 53,896 psi | 86% | 2818 fps | 100% |
| Somchem S385 | <<locked>> | 98% | 55,854 psi | 90% | 2822 fps | 99% |
| Unknown powder | <<locked>> | 90% | 55,274 psi | 89% | 2822 fps | 100% |
| Vihtavuori N135 | <<locked>> | 82% | 54,070 psi | 87% | 2657 fps | 100% |
| Vihtavuori N140 | <<locked>> | 82% | 54,143 psi | 87% | 2674 fps | 100% |
| Vihtavuori N150 | <<locked>> | 88% | 54,781 psi | 88% | 2717 fps | 100% |
| Vihtavuori N160 | <<locked>> | 90% | 53,258 psi | 85% | 2762 fps | 100% |
| Vihtavuori N165ᴾ | <<locked>> | 100% | 51,735 psi | 83% | 2746 fps | 98.2% |
| Vihtavuori N540 | <<locked>> | 84% | 55,782 psi | 89% | 2717 fps | 100% |
| Vihtavuori N550 | <<locked>> | 92% | 55,593 psi | 89% | 2815 fps | 100% |
| Vihtavuori N555 | <<locked>> | 98% | 52,707 psi | 85% | 2822 fps | 100% |
| Vihtavuori N560 | <<locked>> | 98% | 53,258 psi | 85% | 2877 fps | 96.4% |
| Winchester 6.5 StaBALL | <<locked>> | 92% | 56,347 psi | 90% | 2779 fps | 100% |
| Winchester 760 | <<locked>> | 88% | 55,637 psi | 89% | 2848 fps | 99.4% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 45,339 psi | 73% | 2854 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 96% | 54,244 psi | 87% | 2792 fps | 98% |
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% | 51,547 psi | 83% | 2628 fps | 100% |
| Accurate 2700 | <<locked>> | 80% | 44,092 psi | 71% | 2536 fps | 96.7% |
| Accurate 3100 | <<locked>> | 86% | 33,388 psi | 54% | 2405 fps | 95.3% |
| Accurate 4064 | <<locked>> | 80% | 48,849 psi | 78% | 2635 fps | 100% |
| Accurate 4350 | <<locked>> | 80% | 37,188 psi | 60% | 2507 fps | 98.2% |
| ADI AR 2208 | <<locked>> | 80% | 45,934 psi | 74% | 2608 fps | 99.8% |
| ADI AR 2209 | <<locked>> | 90% | 43,830 psi | 70% | 2651 fps | 95.7% |
| ADI AR 2213 | <<locked>> | 96% | 47,659 psi | 76% | 2746 fps | 95.2% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 50,647 psi | 81% | 2815 fps | 100% |
| Alliant Power Pro Varmint | <<locked>> | 90% | 43,990 psi | 71% | 2651 fps | 95.8% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 46,456 psi | 74% | 2631 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 80% | 49,748 psi | 80% | 2700 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 80% | 36,274 psi | 58% | 2513 fps | 98.3% |
| Alliant Reloder-17 | <<locked>> | 80% | 41,002 psi | 66% | 2635 fps | 99.9% |
| Alliant Reloder-19 | <<locked>> | 90% | 43,482 psi | 70% | 2644 fps | 95.7% |
| Alliant Reloder-22 | <<locked>> | 92% | 40,886 psi | 66% | 2635 fps | 95% |
| Alliant Reloder-23 | <<locked>> | 80% | 26,600 psi | 43% | 2277 fps | 95.9% |
| Alliant Reloder-25 | <<locked>> | 90% | 32,010 psi | 51% | 2441 fps | 95% |
| Alliant Reloder-26 | 50.3 gr | 82% | 30,226 psi | 48% | 2434 fps | 95.1% |
| Bofors RP15 | <<locked>> | 96% | 42,931 psi | 69% | 2674 fps | 95.6% |
| Bofors RP3 | <<locked>> | 80% | 46,876 psi | 75% | 2644 fps | 100% |
| Bofors RP5 | <<locked>> | 92% | 40,886 psi | 66% | 2635 fps | 95% |
| Bofors RP7 | <<locked>> | 80% | 41,162 psi | 66% | 2516 fps | 96.1% |
| Hodgdon H380 | <<locked>> | 80% | 46,992 psi | 75% | 2651 fps | 99.5% |
| Hodgdon H414 | <<locked>> | 80% | 42,424 psi | 68% | 2618 fps | 97.2% |
| Hodgdon H4350 | <<locked>> | 82% | 41,162 psi | 66% | 2549 fps | 95.3% |
| Hodgdon H4831 SC | <<locked>> | 96% | 50,038 psi | 80% | 2740 fps | 95.2% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 33,808 psi | 54% | 2411 fps | 98.8% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 48,312 psi | 77% | 2697 fps | 100% |
| Hodgdon Retumbo | <<locked>> | 98% | 40,132 psi | 64% | 2684 fps | 95% |
| Hodgdon Superformance | <<locked>> | 80% | 37,913 psi | 61% | 2552 fps | 95.3% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,253 psi | 44% | 1535 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 48,573 psi | 78% | 2651 fps | 100% |
| IMR 3031 | <<locked>> | 80% | 51,010 psi | 82% | 2674 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 45,136 psi | 72% | 2585 fps | 99.8% |
| IMR 4166 Enduron | <<locked>> | 80% | 44,309 psi | 71% | 2556 fps | 97.5% |
| IMR 4350 | <<locked>> | 82% | 39,204 psi | 63% | 2497 fps | 95.6% |
| IMR 4451 Enduron | <<locked>> | 80% | 42,569 psi | 68% | 2546 fps | 97% |
| IMR 4831 | <<locked>> | 80% | 32,372 psi | 52% | 2379 fps | 96.8% |
| IMR 4895 | <<locked>> | 80% | 50,981 psi | 82% | 2726 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 94% | 49,763 psi | 80% | 2700 fps | 95.4% |
| IMR 7828 SSC | <<locked>> | 96% | 48,849 psi | 78% | 2782 fps | 95.7% |
| Lovex S060 | <<locked>> | 80% | 52,939 psi | 85% | 2674 fps | 100% |
| Lovex S062 | <<locked>> | 80% | 48,573 psi | 78% | 2638 fps | 100% |
| Lovex S065 | <<locked>> | 80% | 40,234 psi | 65% | 2503 fps | 97.8% |
| Lovex S070 | <<locked>> | 80% | 38,479 psi | 62% | 2484 fps | 96.2% |
| Lovex S071 | <<locked>> | 92% | 34,403 psi | 55% | 2431 fps | 95.7% |
| Norma 201 | <<locked>> | 80% | 53,026 psi | 85% | 2697 fps | 100% |
| Norma 203B | <<locked>> | 80% | 49,110 psi | 79% | 2687 fps | 100% |
| Norma 204 | <<locked>> | 86% | 44,440 psi | 71% | 2641 fps | 95.7% |
| Norma MRP | <<locked>> | 88% | 37,405 psi | 60% | 2589 fps | 95.4% |
| Norma URP | <<locked>> | 80% | 37,014 psi | 59% | 2500 fps | 98.1% |
| Ramshot Big Game | <<locked>> | 80% | 49,139 psi | 79% | 2703 fps | 100% |
| Ramshot Grand | 57.7 gr | 94% | 48,037 psi | 77% | 2779 fps | 95.8% |
| Ramshot Hunter | <<locked>> | 80% | 35,679 psi | 57% | 2480 fps | 96% |
| Ramshot Magnum | <<locked>> | 94% | 41,597 psi | 67% | 2635 fps | 96% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,760 psi | 45% | 1572 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 47,166 psi | 76% | 2638 fps | 98.6% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 43,555 psi | 70% | 2687 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 36,709 psi | 59% | 2516 fps | 97.8% |
| ReloadSwiss RS 70 | 48.6 gr | 80% | 35,708 psi | 57% | 2523 fps | 97.1% |
| ReloadSwiss RS 76 | <<locked>> | 96% | 37,246 psi | 60% | 2612 fps | 95% |
| Rottweil R 902 | <<locked>> | 80% | 50,357 psi | 81% | 2648 fps | 100% |
| Rottweil R 903 | <<locked>> | 80% | 44,150 psi | 71% | 2592 fps | 100% |
| Rottweil R 904 | <<locked>> | 92% | 48,515 psi | 78% | 2684 fps | 95.7% |
| Rottweil R 905 | <<locked>> | 90% | 42,482 psi | 68% | 2625 fps | 95.6% |
| Rottweil R 907 | <<locked>> | 80% | 41,162 psi | 66% | 2516 fps | 96.1% |
| Shooters World Long Rifle | <<locked>> | 80% | 40,234 psi | 65% | 2503 fps | 97.8% |
| Shooters World Precision | <<locked>> | 80% | 48,573 psi | 78% | 2638 fps | 100% |
| Shooters World SW4350 | <<locked>> | 80% | 38,479 psi | 62% | 2484 fps | 96.2% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 45,005 psi | 72% | 2641 fps | 99.9% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 52,402 psi | 84% | 2720 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 45,440 psi | 73% | 2503 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 39,378 psi | 63% | 2448 fps | 96.3% |
| SNPE Vectan Tubal 8000 | <<locked>> | 90% | 42,148 psi | 68% | 2621 fps | 95.5% |
| Somchem S355 | <<locked>> | 80% | 44,483 psi | 71% | 2592 fps | 100% |
| Somchem S361 | <<locked>> | 92% | 49,588 psi | 80% | 2674 fps | 95.1% |
| Somchem S365 | <<locked>> | 80% | 33,373 psi | 54% | 2457 fps | 99.6% |
| Somchem S385 | <<locked>> | 86% | 37,797 psi | 61% | 2500 fps | 95% |
| Unknown powder | <<locked>> | 80% | 39,900 psi | 64% | 2552 fps | 98.2% |
| Vihtavuori N135 | <<locked>> | 80% | 50,763 psi | 81% | 2615 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 50,952 psi | 82% | 2628 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 42,467 psi | 68% | 2523 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 38,435 psi | 62% | 2500 fps | 98.4% |
| Vihtavuori N165 | <<locked>> | 92% | 39,668 psi | 64% | 2533 fps | 95.2% |
| Vihtavuori N540 | <<locked>> | 80% | 48,921 psi | 78% | 2618 fps | 100% |
| Vihtavuori N550 | <<locked>> | 80% | 37,681 psi | 60% | 2497 fps | 98% |
| Vihtavuori N555 | <<locked>> | 80% | 29,225 psi | 47% | 2349 fps | 96.1% |
| Vihtavuori N560 | <<locked>> | 96% | 49,748 psi | 80% | 2818 fps | 95.5% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 37,391 psi | 60% | 2467 fps | 99.6% |
| Winchester 760 | <<locked>> | 80% | 42,424 psi | 68% | 2618 fps | 97.2% |
| Winchester StaBALL HD | <<locked>> | 82% | 24,976 psi | 40% | 2297 fps | 95.4% |
| Winchester Supreme 780 | <<locked>> | 90% | 43,801 psi | 70% | 2615 fps | 95.7% |
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 93 powders for .270 Win. loaded with the .277 | 150gr | Hornady InterLock. Alliant Reloder-26 delivers the highest muzzle velocity at 2,933 fps; across all powders the maximum-charge window runs from 1,716 fps to 2,933 fps. Accurate 3100 gives the best case fill at 100 %, and 93 of the 93 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 150.0 gr projectile in 0.277" calls for a 1:13.5 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. ReloadSwiss RS 70, Alliant Reloder-26, Ramshot Grand rank at the top here: for .270 Win. with the .277 | 150gr | Hornady InterLock 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.