Load Specifications
Load data in caliber .270 Win. with .277 | 130gr | Atomic 29 HP 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, Hodgdon Superformance and Alliant Reloder-17.
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 2015 | <<locked>> | 82% | 54,404 psi | 87% | 2818 fps | 100% |
| Accurate 2495 | <<locked>> | 86% | 53,722 psi | 86% | 2848 fps | 100% |
| Accurate 2520 | <<locked>> | 82% | 55,187 psi | 88% | 2913 fps | 100% |
| Accurate 2700 | <<locked>> | 88% | 55,912 psi | 90% | 2897 fps | 97.3% |
| Accurate 3100ᴾ | <<locked>> | 100% | 44,324 psi | 71% | 2795 fps | 96.7% |
| Accurate 4064 | <<locked>> | 88% | 53,954 psi | 87% | 2897 fps | 100% |
| Accurate 4350 | <<locked>> | 96% | 53,722 psi | 86% | 2979 fps | 99.6% |
| ADI AR 2206H | <<locked>> | 84% | 53,722 psi | 86% | 2923 fps | 99.9% |
| ADI AR 2208 | <<locked>> | 90% | 54,940 psi | 88% | 2927 fps | 99.8% |
| ADI Benchmark 8208 | <<locked>> | 84% | 56,014 psi | 90% | 2923 fps | 100% |
| Alliant AR-Comp | <<locked>> | 82% | 53,577 psi | 86% | 2848 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 86% | 53,417 psi | 86% | 3041 fps | 99.8% |
| Alliant Reloder- TS 15.5 | <<locked>> | 90% | 55,027 psi | 88% | 2946 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 88% | 55,477 psi | 89% | 2969 fps | 99.9% |
| Alliant Reloder-16 | <<locked>> | 98% | 54,766 psi | 88% | 3038 fps | 99.8% |
| Alliant Reloder-17 | <<locked>> | 94% | 55,956 psi | 90% | 3074 fps | 100% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 41,959 psi | 67% | 2822 fps | 99.3% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 47,253 psi | 76% | 2995 fps | 98.8% |
| Baschieri & Pellagri 107 | <<locked>> | 84% | 53,447 psi | 86% | 2936 fps | 99.6% |
| Bofors RP3 | <<locked>> | 90% | 55,608 psi | 89% | 2963 fps | 100% |
| Bofors RP7 | <<locked>> | 94% | 55,724 psi | 89% | 2936 fps | 97.5% |
| Hodgdon Benchmark | <<locked>> | 82% | 54,172 psi | 87% | 2854 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 84% | 55,622 psi | 89% | 2953 fps | 100% |
| Hodgdon H380 | <<locked>> | 88% | 53,098 psi | 85% | 2923 fps | 99.2% |
| Hodgdon H414 | <<locked>> | 94% | 52,982 psi | 85% | 2976 fps | 97.7% |
| Hodgdon H4350 | <<locked>> | 92% | 53,490 psi | 86% | 2936 fps | 96.4% |
| Hodgdon H4895 | <<locked>> | 84% | 54,259 psi | 87% | 2933 fps | 100% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 54,621 psi | 88% | 2963 fps | 100% |
| Hodgdon LEVERevolution | <<locked>> | 86% | 53,853 psi | 86% | 2966 fps | 100% |
| Hodgdon Superformance | <<locked>> | 94% | 53,084 psi | 85% | 3005 fps | 97.3% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,650 psi | 57% | 1814 fps | 100% |
| Hodgdon VARGET | <<locked>> | 86% | 55,593 psi | 89% | 2940 fps | 100% |
| IMR 3031 | <<locked>> | 84% | 54,259 psi | 87% | 2917 fps | 100% |
| IMR 4064 | <<locked>> | 88% | 54,317 psi | 87% | 2907 fps | 99.8% |
| IMR 4166 Enduron | <<locked>> | 86% | 54,114 psi | 87% | 2887 fps | 97.7% |
| IMR 4350 | <<locked>> | 98% | 55,999 psi | 90% | 2959 fps | 97.6% |
| IMR 4451 Enduron | <<locked>> | 92% | 54,012 psi | 87% | 2910 fps | 97.6% |
| IMR 4831 | <<locked>> | 98% | 54,389 psi | 87% | 2972 fps | 99.7% |
| IMR 4895 | <<locked>> | 86% | 53,417 psi | 86% | 2946 fps | 99.9% |
| IMR 8208 XBR | <<locked>> | 84% | 56,014 psi | 90% | 2923 fps | 100% |
| Lovex D073.6 | <<locked>> | 84% | 53,592 psi | 86% | 2897 fps | 100% |
| Lovex S060 | <<locked>> | 86% | 56,376 psi | 90% | 2900 fps | 100% |
| Lovex S062 | <<locked>> | 88% | 54,273 psi | 87% | 2904 fps | 100% |
| Lovex S065 | <<locked>> | 94% | 53,679 psi | 86% | 2907 fps | 98.7% |
| Lovex S070 | <<locked>> | 96% | 54,491 psi | 87% | 2943 fps | 98% |
| Norma 201 | <<locked>> | 86% | 55,970 psi | 90% | 2920 fps | 100% |
| Norma 202 | <<locked>> | 86% | 56,376 psi | 90% | 2917 fps | 100% |
| Norma 203B | <<locked>> | 88% | 54,723 psi | 88% | 2956 fps | 100% |
| Norma MRPᴾ | <<locked>> | 100% | 47,050 psi | 75% | 2949 fps | 96.2% |
| Norma URP | <<locked>> | 98% | 56,217 psi | 90% | 3022 fps | 99.7% |
| Ramshot Big Game | <<locked>> | 88% | 55,506 psi | 89% | 2982 fps | 100% |
| Ramshot Hunter | <<locked>> | 98% | 55,172 psi | 88% | 3018 fps | 98.7% |
| Ramshot TAC | <<locked>> | 84% | 56,289 psi | 90% | 2943 fps | 99.2% |
| Ramshot Wild Boar | <<locked>> | 84% | 56,217 psi | 90% | 2963 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 36,289 psi | 58% | 1860 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 88% | 53,316 psi | 85% | 2904 fps | 98.1% |
| ReloadSwiss RS 52 | <<locked>> | 86% | 56,014 psi | 90% | 3038 fps | 99.9% |
| ReloadSwiss RS 60 | <<locked>> | 92% | 55,840 psi | 90% | 3074 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 96% | 53,330 psi | 86% | 2999 fps | 99.4% |
| ReloadSwiss RS 70 | <<locked>> | 98% | 56,434 psi | 90% | 3087 fps | 99.6% |
| Rottweil R 901 | <<locked>> | 82% | 53,374 psi | 86% | 2848 fps | 100% |
| Rottweil R 902 | <<locked>> | 86% | 53,084 psi | 85% | 2867 fps | 100% |
| Rottweil R 903 | <<locked>> | 92% | 55,767 psi | 89% | 2959 fps | 100% |
| Rottweil R 907 | <<locked>> | 94% | 55,724 psi | 89% | 2936 fps | 97.5% |
| Shooters World Long Rifle | <<locked>> | 94% | 53,679 psi | 86% | 2907 fps | 98.7% |
| Shooters World Match Rifle | <<locked>> | 84% | 53,592 psi | 86% | 2897 fps | 100% |
| Shooters World Precision | <<locked>> | 88% | 54,273 psi | 87% | 2904 fps | 100% |
| Shooters World SW4350 | <<locked>> | 96% | 54,491 psi | 87% | 2943 fps | 98% |
| SNPE Vectan SP 11 | <<locked>> | 90% | 53,693 psi | 86% | 2963 fps | 99.9% |
| SNPE Vectan SP 7 | <<locked>> | 84% | 55,013 psi | 88% | 2923 fps | 99.3% |
| SNPE Vectan SP 9 | <<locked>> | 86% | 55,492 psi | 89% | 2946 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 84% | 53,795 psi | 86% | 2808 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 90% | 54,186 psi | 87% | 2805 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 94% | 53,606 psi | 86% | 2854 fps | 97.6% |
| Somchem S335 | <<locked>> | 84% | 53,316 psi | 85% | 2805 fps | 100% |
| Somchem S341 | <<locked>> | 84% | 54,418 psi | 87% | 2913 fps | 99.9% |
| Somchem S355 | <<locked>> | 92% | 55,782 psi | 89% | 2953 fps | 100% |
| Somchem S365ᴾ | <<locked>> | 100% | 54,447 psi | 87% | 3025 fps | 100% |
| Somchem S385ᴾ | <<locked>> | 100% | 50,488 psi | 81% | 2900 fps | 96.5% |
| Vihtavuori N133 | <<locked>> | 84% | 54,157 psi | 87% | 2792 fps | 100% |
| Vihtavuori N135 | <<locked>> | 88% | 56,420 psi | 90% | 2881 fps | 100% |
| Vihtavuori N140 | <<locked>> | 86% | 53,650 psi | 86% | 2851 fps | 100% |
| Vihtavuori N150 | <<locked>> | 92% | 53,925 psi | 86% | 2881 fps | 100% |
| Vihtavuori N160 | <<locked>> | 96% | 55,100 psi | 88% | 2963 fps | 99.6% |
| Vihtavuori N530 | <<locked>> | 82% | 53,011 psi | 85% | 2871 fps | 100% |
| Vihtavuori N540 | <<locked>> | 88% | 55,376 psi | 89% | 2894 fps | 100% |
| Vihtavuori N550 | <<locked>> | 96% | 54,331 psi | 87% | 2969 fps | 99.4% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 46,441 psi | 74% | 2900 fps | 99.2% |
| Winchester 6.5 StaBALL | <<locked>> | 96% | 55,172 psi | 88% | 2940 fps | 100% |
| Winchester 748 | <<locked>> | 82% | 53,098 psi | 85% | 2920 fps | 100% |
| Winchester 760 | <<locked>> | 94% | 52,982 psi | 85% | 2976 fps | 97.7% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 37,681 psi | 60% | 2831 fps | 99.3% |
| Winchester StaBALL Match | <<locked>> | 86% | 55,695 psi | 89% | 2956 fps | 100% |
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% | 51,285 psi | 82% | 2772 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 43,976 psi | 71% | 2697 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 51,459 psi | 83% | 2858 fps | 100% |
| Accurate 2700 | <<locked>> | 82% | 46,035 psi | 74% | 2730 fps | 95.1% |
| Accurate 3100 | <<locked>> | 96% | 38,595 psi | 62% | 2677 fps | 95% |
| Accurate 4064 | <<locked>> | 80% | 41,611 psi | 67% | 2694 fps | 100% |
| Accurate 4350 | <<locked>> | 84% | 35,462 psi | 57% | 2625 fps | 95.9% |
| ADI AR 2206H | <<locked>> | 80% | 47,355 psi | 76% | 2812 fps | 99.5% |
| ADI AR 2208 | <<locked>> | 80% | 40,205 psi | 64% | 2657 fps | 97.8% |
| ADI Benchmark 8208 | <<locked>> | 80% | 49,414 psi | 79% | 2822 fps | 100% |
| Alliant AR-Comp | <<locked>> | 80% | 50,343 psi | 81% | 2802 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 43,424 psi | 70% | 2851 fps | 98.5% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 40,147 psi | 64% | 2680 fps | 99.1% |
| Alliant Reloder-15 | <<locked>> | 80% | 42,989 psi | 69% | 2746 fps | 98.6% |
| Alliant Reloder-16 | <<locked>> | 84% | 35,317 psi | 57% | 2638 fps | 95.9% |
| Alliant Reloder-17 | 46.2 gr | 80% | 34,824 psi | 56% | 2651 fps | 97.5% |
| Alliant Reloder-23 | <<locked>> | 90% | 30,661 psi | 49% | 2536 fps | 95.6% |
| Alliant Reloder-26 | <<locked>> | 92% | 35,607 psi | 57% | 2726 fps | 95.1% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 46,891 psi | 75% | 2822 fps | 98.8% |
| Bofors RP3 | <<locked>> | 80% | 39,987 psi | 64% | 2687 fps | 99.1% |
| Bofors RP7 | <<locked>> | 88% | 46,108 psi | 74% | 2766 fps | 95.4% |
| Hodgdon Benchmark | <<locked>> | 80% | 50,908 psi | 82% | 2802 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 80% | 48,718 psi | 78% | 2844 fps | 100% |
| Hodgdon H380 | <<locked>> | 80% | 40,756 psi | 65% | 2690 fps | 96.9% |
| Hodgdon H414 | <<locked>> | 88% | 43,337 psi | 69% | 2795 fps | 95.4% |
| Hodgdon H4350 | <<locked>> | 90% | 49,879 psi | 80% | 2874 fps | 95.6% |
| Hodgdon H4895 | <<locked>> | 80% | 47,790 psi | 77% | 2825 fps | 99.8% |
| Hodgdon Hybrid 100V | <<locked>> | 82% | 30,443 psi | 49% | 2477 fps | 95.8% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 44,092 psi | 71% | 2799 fps | 99.6% |
| Hodgdon Superformance | 54.9 gr | 90% | 46,050 psi | 74% | 2874 fps | 95.5% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,556 psi | 43% | 1621 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 45,919 psi | 74% | 2776 fps | 99.6% |
| IMR 3031 | <<locked>> | 80% | 47,703 psi | 76% | 2815 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 42,250 psi | 68% | 2694 fps | 98.5% |
| IMR 4166 Enduron | <<locked>> | 80% | 44,599 psi | 72% | 2713 fps | 95.6% |
| IMR 4350 | <<locked>> | 92% | 46,340 psi | 74% | 2795 fps | 95.5% |
| IMR 4451 Enduron | <<locked>> | 86% | 44,846 psi | 72% | 2746 fps | 95.6% |
| IMR 4831 | <<locked>> | 84% | 34,272 psi | 55% | 2582 fps | 95.5% |
| IMR 4895 | <<locked>> | 80% | 44,048 psi | 71% | 2779 fps | 99.1% |
| IMR 8208 XBR | <<locked>> | 80% | 49,414 psi | 79% | 2822 fps | 100% |
| Lovex D073.6 | <<locked>> | 80% | 46,746 psi | 75% | 2789 fps | 100% |
| Lovex S060 | <<locked>> | 80% | 47,021 psi | 75% | 2746 fps | 99.5% |
| Lovex S062 | <<locked>> | 80% | 42,293 psi | 68% | 2697 fps | 99.6% |
| Lovex S065 | <<locked>> | 84% | 39,392 psi | 63% | 2638 fps | 95.6% |
| Lovex S070 | <<locked>> | 88% | 42,540 psi | 68% | 2723 fps | 95.3% |
| Norma 201 | <<locked>> | 80% | 46,238 psi | 74% | 2762 fps | 99.9% |
| Norma 202 | <<locked>> | 80% | 46,789 psi | 75% | 2769 fps | 100% |
| Norma 203B | <<locked>> | 80% | 42,351 psi | 68% | 2733 fps | 98.8% |
| Norma MRP | <<locked>> | 98% | 43,830 psi | 70% | 2881 fps | 95.2% |
| Norma URP | <<locked>> | 84% | 35,578 psi | 57% | 2628 fps | 95.8% |
| Ramshot Big Game | <<locked>> | 80% | 42,206 psi | 68% | 2753 fps | 98.7% |
| Ramshot Hunter | <<locked>> | 88% | 39,610 psi | 64% | 2723 fps | 95.1% |
| Ramshot TAC | <<locked>> | 80% | 49,240 psi | 79% | 2825 fps | 98.2% |
| Ramshot Wild Boar | <<locked>> | 80% | 49,066 psi | 79% | 2848 fps | 99.6% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 26,992 psi | 43% | 1660 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 41,017 psi | 66% | 2674 fps | 95.3% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 45,585 psi | 73% | 2858 fps | 99% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 37,086 psi | 59% | 2723 fps | 99.8% |
| ReloadSwiss RS 62 | <<locked>> | 84% | 35,128 psi | 56% | 2641 fps | 95.3% |
| ReloadSwiss RS 70 | 50.4 gr | 86% | 37,449 psi | 60% | 2707 fps | 95.3% |
| Rottweil R 901 | <<locked>> | 80% | 50,386 psi | 81% | 2802 fps | 100% |
| Rottweil R 902 | <<locked>> | 80% | 44,063 psi | 71% | 2713 fps | 99.7% |
| Rottweil R 903 | <<locked>> | 80% | 37,536 psi | 60% | 2628 fps | 98.4% |
| Rottweil R 907 | <<locked>> | 88% | 46,108 psi | 74% | 2766 fps | 95.4% |
| Shooters World Long Rifle | <<locked>> | 84% | 39,392 psi | 63% | 2638 fps | 95.6% |
| Shooters World Match Rifle | <<locked>> | 80% | 46,746 psi | 75% | 2789 fps | 100% |
| Shooters World Precision | <<locked>> | 80% | 42,293 psi | 68% | 2697 fps | 99.6% |
| Shooters World SW4350 | <<locked>> | 88% | 42,540 psi | 68% | 2723 fps | 95.3% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 38,450 psi | 62% | 2677 fps | 97.9% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 47,834 psi | 77% | 2802 fps | 98.4% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 45,730 psi | 73% | 2779 fps | 99.3% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 47,514 psi | 76% | 2710 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 39,740 psi | 64% | 2572 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 88% | 44,135 psi | 71% | 2690 fps | 95.6% |
| Somchem S335 | <<locked>> | 80% | 47,065 psi | 75% | 2710 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 47,703 psi | 76% | 2802 fps | 99.5% |
| Somchem S355 | <<locked>> | 80% | 38,189 psi | 61% | 2631 fps | 98.4% |
| Somchem S365 | <<locked>> | 80% | 28,036 psi | 45% | 2464 fps | 96.2% |
| Somchem S385 | <<locked>> | 98% | 47,268 psi | 76% | 2844 fps | 95.7% |
| Vihtavuori N133 | <<locked>> | 80% | 47,921 psi | 77% | 2700 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 43,801 psi | 70% | 2690 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 44,266 psi | 71% | 2700 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 36,390 psi | 58% | 2566 fps | 99% |
| Vihtavuori N160 | <<locked>> | 82% | 34,722 psi | 56% | 2572 fps | 95.4% |
| Vihtavuori N530 | <<locked>> | 80% | 49,661 psi | 80% | 2818 fps | 100% |
| Vihtavuori N540 | <<locked>> | 80% | 42,844 psi | 69% | 2690 fps | 100% |
| Vihtavuori N550 | <<locked>> | 84% | 36,593 psi | 59% | 2628 fps | 95.8% |
| Vihtavuori N555 | <<locked>> | 90% | 33,286 psi | 53% | 2618 fps | 95.8% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 32,329 psi | 52% | 2493 fps | 96.8% |
| Winchester 748 | <<locked>> | 80% | 49,748 psi | 80% | 2864 fps | 100% |
| Winchester 760 | <<locked>> | 88% | 43,337 psi | 69% | 2795 fps | 95.4% |
| Winchester StaBALL HD | <<locked>> | 92% | 29,109 psi | 47% | 2559 fps | 95.2% |
| Winchester StaBALL Match | <<locked>> | 80% | 45,484 psi | 73% | 2785 fps | 99.6% |
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 93 powders for .270 Win. loaded with the .277 | 130gr | Atomic 29 HP. ReloadSwiss RS 70 delivers the highest muzzle velocity at 3,087 fps; across all powders the maximum-charge window runs from 1,814 fps to 3,087 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 57–90 %, leaving at least 10 % headroom. The 130.0 gr projectile in 0.277" calls for a 1:10.5 twist; slower twists will usually not stabilise this weight. Accurate 3100, Alliant Reloder-23, Alliant Reloder-26 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, Hodgdon Superformance, Alliant Reloder-17 rank at the top here: for .270 Win. with the .277 | 130gr | Atomic 29 HP 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.