Load Specifications
Bullet Manufacturer:Rhino Bullets
Bullet Weight:140 gr
Bullet Diameter:0.277"
Bullet Length:<<locked>>
Caliber:.270 Win. load data
Case Length (l3):2.54"
Cartridge Length (C.O.L.):<<locked>>
Case Capacity:67 Grains of Water
Primer Size:Large Rifle (LR)
Barrel Length:24"
Max. allowed Pressure:62,366 psi
Recommended Twist Rate:1:10.0
Load data in caliber .270 Win. with .277 | 140gr | Rhino Penetrator bullet and 99 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are ReloadSwiss RS 60, Hodgdon H414 and Winchester 760.
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.
A valid access license is required to use the Personalized Load Calculator.
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% | 56,304 psi | 90% | 2733 fps | 100% |
| Accurate 2495 | <<locked>> | 86% | 55,811 psi | 89% | 2766 fps | 100% |
| Accurate 2700 | <<locked>> | 86% | 54,157 psi | 87% | 2772 fps | 97.6% |
| Accurate 3100ᴾ | <<locked>> | 100% | 46,369 psi | 74% | 2736 fps | 97.9% |
| Accurate 4064 | <<locked>> | 88% | 55,767 psi | 89% | 2815 fps | 100% |
| Accurate 4350 | <<locked>> | 96% | 55,883 psi | 90% | 2907 fps | 99.9% |
| ADI AR 2206H | <<locked>> | 84% | 55,535 psi | 89% | 2844 fps | 100% |
| ADI AR 2208 | <<locked>> | 88% | 53,055 psi | 85% | 2792 fps | 99.9% |
| ADI AR 2209ᴾ | <<locked>> | 100% | 53,824 psi | 86% | 2887 fps | 96.8% |
| ADI Benchmark 8208 | <<locked>> | 82% | 54,288 psi | 87% | 2789 fps | 100% |
| Alliant AR-Comp | <<locked>> | 82% | 55,782 psi | 89% | 2762 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 86% | 55,521 psi | 89% | 2969 fps | 100% |
| Alliant Reloder- TS 15.5 | <<locked>> | 88% | 53,635 psi | 86% | 2818 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 86% | 54,027 psi | 87% | 2841 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 96% | 53,359 psi | 86% | 2910 fps | 99.9% |
| Alliant Reloder-17 | <<locked>> | 92% | 54,433 psi | 87% | 2943 fps | 100% |
| Alliant Reloder-19ᴾ | <<locked>> | 100% | 52,837 psi | 85% | 2874 fps | 96.7% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 43,656 psi | 70% | 2759 fps | 99.8% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 38,450 psi | 62% | 2661 fps | 96.3% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 49,443 psi | 79% | 2936 fps | 99.5% |
| Baschieri & Pellagri 107 | <<locked>> | 84% | 55,288 psi | 89% | 2858 fps | 99.9% |
| Bofors RP3 | <<locked>> | 88% | 53,954 psi | 87% | 2831 fps | 100% |
| Bofors RP7 | <<locked>> | 92% | 54,056 psi | 87% | 2812 fps | 97.8% |
| Hodgdon Benchmark | <<locked>> | 82% | 55,651 psi | 89% | 2769 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 82% | 53,969 psi | 87% | 2822 fps | 100% |
| Hodgdon H380 | <<locked>> | 88% | 54,955 psi | 88% | 2851 fps | 99.7% |
| Hodgdon H414 | <<locked>> | 94% | 54,926 psi | 88% | 2904 fps | 98.6% |
| Hodgdon H4350 | <<locked>> | 92% | 55,085 psi | 88% | 2864 fps | 97.4% |
| Hodgdon H4895 | <<locked>> | 84% | 56,115 psi | 90% | 2854 fps | 100% |
| Hodgdon Hybrid 100V | <<locked>> | 98% | 53,359 psi | 86% | 2838 fps | 100% |
| Hodgdon LEVERevolution | <<locked>> | 86% | 55,854 psi | 90% | 2887 fps | 100% |
| Hodgdon Superformance | <<locked>> | 94% | 55,361 psi | 89% | 2943 fps | 98.4% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,853 psi | 57% | 1745 fps | 100% |
| Hodgdon VARGET | <<locked>> | 84% | 53,606 psi | 86% | 2802 fps | 100% |
| IMR 3031 | <<locked>> | 82% | 52,837 psi | 85% | 2782 fps | 100% |
| IMR 4064 | <<locked>> | 88% | 55,898 psi | 90% | 2828 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 86% | 55,608 psi | 89% | 2808 fps | 98.5% |
| IMR 4350 | <<locked>> | 96% | 54,621 psi | 88% | 2838 fps | 98% |
| IMR 4451 Enduron | <<locked>> | 92% | 55,738 psi | 89% | 2838 fps | 98.5% |
| IMR 4831 | <<locked>> | 96% | 52,866 psi | 85% | 2848 fps | 99.8% |
| IMR 4895 | <<locked>> | 86% | 55,434 psi | 89% | 2871 fps | 100% |
| IMR 8208 XBR | <<locked>> | 82% | 54,288 psi | 87% | 2789 fps | 100% |
| Lovex D073.6 | <<locked>> | 84% | 55,724 psi | 89% | 2822 fps | 100% |
| Lovex S060 | <<locked>> | 84% | 54,824 psi | 88% | 2772 fps | 100% |
| Lovex S062 | <<locked>> | 88% | 55,898 psi | 90% | 2822 fps | 100% |
| Lovex S065 | <<locked>> | 94% | 55,506 psi | 89% | 2835 fps | 99.4% |
| Lovex S070 | <<locked>> | 94% | 53,026 psi | 85% | 2818 fps | 98.4% |
| Norma 201 | <<locked>> | 84% | 54,230 psi | 87% | 2789 fps | 100% |
| Norma 202 | <<locked>> | 84% | 54,665 psi | 88% | 2785 fps | 100% |
| Norma 203B | <<locked>> | 86% | 53,272 psi | 85% | 2828 fps | 100% |
| Norma 204 | <<locked>> | 96% | 54,998 psi | 88% | 2884 fps | 96.9% |
| Norma MRPᴾ | <<locked>> | 100% | 48,950 psi | 78% | 2890 fps | 97.5% |
| Norma URP | <<locked>> | 96% | 54,868 psi | 88% | 2897 fps | 99.8% |
| Ramshot Big Game | <<locked>> | 86% | 53,766 psi | 86% | 2851 fps | 100% |
| Ramshot Hunter | <<locked>> | 96% | 53,476 psi | 86% | 2890 fps | 99% |
| Ramshot TAC | <<locked>> | 82% | 54,534 psi | 87% | 2815 fps | 99.4% |
| Ramshot Wild Boar | <<locked>> | 82% | 54,157 psi | 87% | 2828 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 36,564 psi | 59% | 1788 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 88% | 54,810 psi | 88% | 2828 fps | 98.9% |
| ReloadSwiss RS 52 | <<locked>> | 84% | 54,665 psi | 88% | 2907 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 90% | 54,201 psi | 87% | 2940 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 96% | 55,666 psi | 89% | 2930 fps | 99.8% |
| ReloadSwiss RS 70 | <<locked>> | 96% | 54,708 psi | 88% | 2959 fps | 99.8% |
| Rottweil R 901 | <<locked>> | 82% | 55,172 psi | 88% | 2769 fps | 100% |
| Rottweil R 902 | <<locked>> | 86% | 54,824 psi | 88% | 2789 fps | 100% |
| Rottweil R 903 | <<locked>> | 90% | 54,143 psi | 87% | 2828 fps | 100% |
| Rottweil R 904ᴾ | <<locked>> | 100% | 55,521 psi | 89% | 2858 fps | 95.9% |
| Rottweil R 905ᴾ | <<locked>> | 100% | 51,793 psi | 83% | 2858 fps | 96.7% |
| Rottweil R 907 | <<locked>> | 92% | 54,056 psi | 87% | 2812 fps | 97.8% |
| Shooters World Long Rifle | <<locked>> | 94% | 55,506 psi | 89% | 2835 fps | 99.4% |
| Shooters World Match Rifle | <<locked>> | 84% | 55,724 psi | 89% | 2822 fps | 100% |
| Shooters World Precision | <<locked>> | 88% | 55,898 psi | 90% | 2822 fps | 100% |
| Shooters World SW4350 | <<locked>> | 94% | 53,026 psi | 85% | 2818 fps | 98.4% |
| SNPE Vectan SP 11 | <<locked>> | 90% | 55,796 psi | 89% | 2887 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 82% | 52,997 psi | 85% | 2792 fps | 99.5% |
| SNPE Vectan SP 9 | <<locked>> | 84% | 54,056 psi | 87% | 2815 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 84% | 55,317 psi | 89% | 2723 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 90% | 56,028 psi | 90% | 2726 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 94% | 55,521 psi | 89% | 2789 fps | 98.5% |
| SNPE Vectan Tubal 8000ᴾ | <<locked>> | 100% | 51,300 psi | 82% | 2854 fps | 96.6% |
| Somchem S335 | <<locked>> | 84% | 54,940 psi | 88% | 2723 fps | 100% |
| Somchem S341 | <<locked>> | 84% | 56,289 psi | 90% | 2835 fps | 100% |
| Somchem S355 | <<locked>> | 90% | 54,447 psi | 87% | 2828 fps | 100% |
| Somchem S365 | <<locked>> | 98% | 53,127 psi | 85% | 2894 fps | 100% |
| Somchem S385ᴾ | <<locked>> | 100% | 52,591 psi | 84% | 2838 fps | 97.6% |
| Vihtavuori N133 | <<locked>> | 84% | 55,709 psi | 89% | 2707 fps | 100% |
| Vihtavuori N135 | <<locked>> | 86% | 54,708 psi | 88% | 2749 fps | 100% |
| Vihtavuori N140 | <<locked>> | 86% | 55,521 psi | 89% | 2769 fps | 100% |
| Vihtavuori N150 | <<locked>> | 92% | 55,477 psi | 89% | 2799 fps | 100% |
| Vihtavuori N160 | <<locked>> | 94% | 53,737 psi | 86% | 2841 fps | 99.7% |
| Vihtavuori N530 | <<locked>> | 82% | 54,752 psi | 88% | 2792 fps | 100% |
| Vihtavuori N540 | <<locked>> | 86% | 53,650 psi | 86% | 2766 fps | 100% |
| Vihtavuori N550 | <<locked>> | 96% | 56,376 psi | 90% | 2897 fps | 99.8% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 48,573 psi | 78% | 2838 fps | 99.7% |
| Winchester 6.5 StaBALL | <<locked>> | 94% | 53,403 psi | 86% | 2812 fps | 100% |
| Winchester 748 | <<locked>> | 82% | 55,114 psi | 88% | 2841 fps | 100% |
| Winchester 760 | <<locked>> | 94% | 54,926 psi | 88% | 2904 fps | 98.6% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 39,189 psi | 63% | 2785 fps | 99.9% |
| Winchester StaBALL Match | <<locked>> | 84% | 53,737 psi | 86% | 2818 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% | 53,055 psi | 85% | 2690 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 45,876 psi | 74% | 2621 fps | 100% |
| Accurate 2700 | <<locked>> | 80% | 44,411 psi | 71% | 2602 fps | 95.5% |
| Accurate 3100 | <<locked>> | 94% | 37,811 psi | 61% | 2572 fps | 95.6% |
| Accurate 4064 | <<locked>> | 80% | 43,410 psi | 70% | 2625 fps | 100% |
| Accurate 4350 | <<locked>> | 80% | 32,213 psi | 52% | 2454 fps | 95.4% |
| ADI AR 2206H | <<locked>> | 80% | 48,805 psi | 78% | 2736 fps | 99.9% |
| ADI AR 2208 | <<locked>> | 80% | 41,669 psi | 67% | 2592 fps | 98.7% |
| ADI AR 2209 | <<locked>> | 96% | 47,384 psi | 76% | 2776 fps | 95.2% |
| ADI Benchmark 8208 | <<locked>> | 80% | 50,923 psi | 82% | 2740 fps | 100% |
| Alliant AR-Comp | <<locked>> | 80% | 52,069 psi | 83% | 2717 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 44,889 psi | 72% | 2782 fps | 99.3% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 41,524 psi | 67% | 2612 fps | 99.6% |
| Alliant Reloder-15 | <<locked>> | 80% | 44,454 psi | 71% | 2677 fps | 99.2% |
| Alliant Reloder-16 | <<locked>> | 80% | 32,285 psi | 52% | 2470 fps | 95.5% |
| Alliant Reloder-17 | <<locked>> | 80% | 36,013 psi | 58% | 2595 fps | 98.6% |
| Alliant Reloder-19 | <<locked>> | 96% | 46,369 psi | 74% | 2759 fps | 95.1% |
| Alliant Reloder-23 | <<locked>> | 86% | 28,340 psi | 45% | 2385 fps | 95.4% |
| Alliant Reloder-25 | <<locked>> | 98% | 36,056 psi | 58% | 2598 fps | 95.2% |
| Alliant Reloder-26 | <<locked>> | 90% | 34,577 psi | 55% | 2615 fps | 95.7% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 48,356 psi | 78% | 2749 fps | 99.4% |
| Bofors RP3 | <<locked>> | 80% | 41,524 psi | 67% | 2621 fps | 99.6% |
| Bofors RP7 | <<locked>> | 84% | 41,945 psi | 67% | 2592 fps | 95% |
| Hodgdon Benchmark | <<locked>> | 80% | 52,562 psi | 84% | 2726 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 80% | 50,285 psi | 81% | 2766 fps | 100% |
| Hodgdon H380 | <<locked>> | 80% | 42,235 psi | 68% | 2628 fps | 98% |
| Hodgdon H414 | 46.4 gr | 84% | 39,450 psi | 63% | 2621 fps | 95% |
| Hodgdon H4350 | <<locked>> | 86% | 45,658 psi | 73% | 2700 fps | 95.3% |
| Hodgdon H4895 | <<locked>> | 80% | 49,342 psi | 79% | 2746 fps | 100% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 29,704 psi | 48% | 2369 fps | 96.4% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 45,585 psi | 73% | 2723 fps | 99.9% |
| Hodgdon Superformance | <<locked>> | 86% | 41,495 psi | 67% | 2690 fps | 95% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,803 psi | 43% | 1558 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 47,340 psi | 76% | 2700 fps | 99.9% |
| IMR 3031 | <<locked>> | 80% | 49,676 psi | 80% | 2736 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 43,772 psi | 70% | 2625 fps | 99.2% |
| IMR 4166 Enduron | <<locked>> | 80% | 46,209 psi | 74% | 2651 fps | 96.8% |
| IMR 4350 | <<locked>> | 88% | 42,496 psi | 68% | 2625 fps | 95.2% |
| IMR 4451 Enduron | <<locked>> | 82% | 41,031 psi | 66% | 2572 fps | 95.2% |
| IMR 4831 | <<locked>> | 80% | 31,198 psi | 50% | 2415 fps | 95.1% |
| IMR 4895 | <<locked>> | 80% | 45,585 psi | 73% | 2707 fps | 99.7% |
| IMR 8208 XBR | <<locked>> | 80% | 50,923 psi | 82% | 2740 fps | 100% |
| Lovex D073.6 | <<locked>> | 80% | 48,515 psi | 78% | 2717 fps | 100% |
| Lovex S060 | <<locked>> | 80% | 48,530 psi | 78% | 2671 fps | 99.8% |
| Lovex S062 | <<locked>> | 80% | 43,888 psi | 70% | 2628 fps | 99.9% |
| Lovex S065 | <<locked>> | 80% | 36,042 psi | 58% | 2470 fps | 95.3% |
| Lovex S070 | <<locked>> | 84% | 38,899 psi | 62% | 2552 fps | 95% |
| Norma 201 | <<locked>> | 80% | 47,921 psi | 77% | 2687 fps | 100% |
| Norma 202 | <<locked>> | 80% | 48,283 psi | 77% | 2690 fps | 100% |
| Norma 203B | <<locked>> | 80% | 43,830 psi | 70% | 2667 fps | 99.5% |
| Norma 204 | <<locked>> | 92% | 48,138 psi | 77% | 2769 fps | 95.3% |
| Norma MRP | <<locked>> | 96% | 42,830 psi | 69% | 2769 fps | 95.8% |
| Norma URP | <<locked>> | 80% | 32,547 psi | 52% | 2461 fps | 95.4% |
| Ramshot Big Game | <<locked>> | 80% | 43,685 psi | 70% | 2684 fps | 99.4% |
| Ramshot Hunter | <<locked>> | 86% | 38,595 psi | 62% | 2612 fps | 95.7% |
| Ramshot TAC | <<locked>> | 80% | 50,966 psi | 82% | 2756 fps | 98.9% |
| Ramshot Wild Boar | <<locked>> | 80% | 50,850 psi | 82% | 2776 fps | 99.9% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,267 psi | 44% | 1598 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 42,482 psi | 68% | 2612 fps | 96.5% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 47,384 psi | 76% | 2785 fps | 99.6% |
| ReloadSwiss RS 60 | 45.1 gr | 80% | 38,319 psi | 61% | 2657 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 82% | 34,243 psi | 55% | 2530 fps | 95.8% |
| ReloadSwiss RS 70 | <<locked>> | 84% | 36,245 psi | 58% | 2592 fps | 95.8% |
| Rottweil R 901 | <<locked>> | 80% | 52,040 psi | 83% | 2720 fps | 100% |
| Rottweil R 902 | <<locked>> | 80% | 45,672 psi | 73% | 2641 fps | 100% |
| Rottweil R 903 | <<locked>> | 80% | 39,175 psi | 63% | 2569 fps | 99.2% |
| Rottweil R 904 | <<locked>> | 98% | 52,243 psi | 84% | 2805 fps | 95.2% |
| Rottweil R 905 | <<locked>> | 96% | 45,150 psi | 72% | 2743 fps | 95% |
| Rottweil R 907 | <<locked>> | 84% | 41,945 psi | 67% | 2592 fps | 95% |
| Shooters World Long Rifle | <<locked>> | 80% | 36,042 psi | 58% | 2470 fps | 95.3% |
| Shooters World Match Rifle | <<locked>> | 80% | 48,515 psi | 78% | 2717 fps | 100% |
| Shooters World Precision | <<locked>> | 80% | 43,888 psi | 70% | 2628 fps | 99.9% |
| Shooters World SW4350 | <<locked>> | 84% | 38,899 psi | 62% | 2552 fps | 95% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 39,987 psi | 64% | 2615 fps | 98.8% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 49,676 psi | 80% | 2736 fps | 99.1% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 47,311 psi | 76% | 2707 fps | 99.8% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 49,037 psi | 79% | 2631 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 41,104 psi | 66% | 2500 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 84% | 40,219 psi | 64% | 2523 fps | 95.2% |
| SNPE Vectan Tubal 8000 | <<locked>> | 98% | 47,906 psi | 77% | 2795 fps | 95.7% |
| Somchem S335 | <<locked>> | 80% | 48,718 psi | 78% | 2631 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 49,240 psi | 79% | 2726 fps | 99.9% |
| Somchem S355 | <<locked>> | 80% | 39,726 psi | 64% | 2569 fps | 99.1% |
| Somchem S365 | <<locked>> | 80% | 29,167 psi | 47% | 2411 fps | 97.6% |
| Somchem S385 | <<locked>> | 94% | 43,091 psi | 69% | 2671 fps | 95.4% |
| Vihtavuori N133 | <<locked>> | 80% | 49,458 psi | 79% | 2621 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 45,484 psi | 73% | 2615 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 45,963 psi | 74% | 2628 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 37,927 psi | 61% | 2507 fps | 99.6% |
| Vihtavuori N160 | <<locked>> | 80% | 33,779 psi | 54% | 2461 fps | 95.8% |
| Vihtavuori N530 | <<locked>> | 80% | 51,285 psi | 82% | 2740 fps | 100% |
| Vihtavuori N540 | <<locked>> | 80% | 44,309 psi | 71% | 2618 fps | 100% |
| Vihtavuori N550 | <<locked>> | 80% | 33,446 psi | 54% | 2464 fps | 95.5% |
| Vihtavuori N555 | <<locked>> | 86% | 30,705 psi | 49% | 2461 fps | 95.5% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 33,373 psi | 54% | 2434 fps | 97.9% |
| Winchester 748 | <<locked>> | 80% | 51,343 psi | 82% | 2782 fps | 100% |
| Winchester 760 | 46.4 gr | 84% | 39,450 psi | 63% | 2621 fps | 95% |
| Winchester StaBALL HD | <<locked>> | 90% | 28,355 psi | 45% | 2464 fps | 96% |
| Winchester StaBALL Match | <<locked>> | 80% | 47,210 psi | 76% | 2717 fps | 99.9% |
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 99 powders for .270 Win. loaded with the .277 | 140gr | Rhino Penetrator. Alliant Power Pro 2000-MR delivers the highest muzzle velocity at 2,969 fps; across all powders the maximum-charge window runs from 1,745 fps to 2,969 fps. Accurate 3100 gives the best case fill at 100 %, and 99 of the 99 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 140.0 gr projectile in 0.277" calls for a 1:10.0 twist; slower twists will usually not stabilise this weight. Accurate 3100, ADI AR 2209, Alliant Reloder-19 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 60, Hodgdon H414, Winchester 760 rank at the top here: for .270 Win. with the .277 | 140gr | Rhino Penetrator 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.