Load Specifications
Bullet Manufacturer:Rhino Bullets
Bullet Weight:150 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:1:9.0
Load data in caliber .270 Win. with .277 | 150gr | Rhino Penetrator bullet and 101 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-16 and Hodgdon Superformance.
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 2495 | <<locked>> | 84% | 53,853 psi | 86% | 2638 fps | 100% |
| Accurate 2700 | <<locked>> | 86% | 55,332 psi | 89% | 2697 fps | 98.3% |
| Accurate 3100ᴾ | <<locked>> | 100% | 47,979 psi | 77% | 2671 fps | 98.6% |
| Accurate 4064 | <<locked>> | 86% | 53,983 psi | 87% | 2687 fps | 100% |
| Accurate 4350 | <<locked>> | 94% | 54,215 psi | 87% | 2785 fps | 100% |
| ADI AR 2206H | <<locked>> | 82% | 53,548 psi | 86% | 2713 fps | 100% |
| ADI AR 2208 | <<locked>> | 88% | 54,650 psi | 88% | 2720 fps | 100% |
| ADI AR 2209ᴾ | <<locked>> | 100% | 55,216 psi | 89% | 2818 fps | 97.7% |
| ADI Benchmark 8208 | <<locked>> | 82% | 55,738 psi | 89% | 2710 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 84% | 53,287 psi | 85% | 2831 fps | 100% |
| Alliant Reloder- TS 15.5 | <<locked>> | 88% | 55,114 psi | 88% | 2740 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 86% | 55,419 psi | 89% | 2762 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 96% | 54,897 psi | 88% | 2835 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 92% | 56,304 psi | 90% | 2864 fps | 100% |
| Alliant Reloder-19ᴾ | <<locked>> | 100% | 54,302 psi | 87% | 2805 fps | 97.6% |
| Alliant Reloder-22ᴾ | <<locked>> | 100% | 47,964 psi | 77% | 2749 fps | 96.5% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 45,281 psi | 73% | 2697 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 39,581 psi | 63% | 2608 fps | 97.5% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 51,169 psi | 82% | 2871 fps | 99.9% |
| Baschieri & Pellagri 107 | <<locked>> | 82% | 53,040 psi | 85% | 2726 fps | 99.9% |
| Bofors RP3 | <<locked>> | 88% | 55,680 psi | 89% | 2753 fps | 100% |
| Bofors RP5ᴾ | <<locked>> | 100% | 47,964 psi | 77% | 2749 fps | 96.5% |
| Bofors RP7 | <<locked>> | 92% | 55,259 psi | 89% | 2733 fps | 98.5% |
| Hodgdon BL-C2 | <<locked>> | 82% | 55,492 psi | 89% | 2743 fps | 100% |
| Hodgdon H380 | <<locked>> | 88% | 56,275 psi | 90% | 2769 fps | 99.9% |
| Hodgdon H414 | <<locked>> | 92% | 53,011 psi | 85% | 2779 fps | 98.7% |
| Hodgdon H4350 | <<locked>> | 90% | 53,272 psi | 85% | 2743 fps | 97.7% |
| Hodgdon H4895 | <<locked>> | 82% | 54,099 psi | 87% | 2723 fps | 100% |
| Hodgdon Hybrid 100V | <<locked>> | 98% | 55,114 psi | 88% | 2762 fps | 100% |
| Hodgdon LEVERevolution | <<locked>> | 84% | 53,882 psi | 86% | 2756 fps | 100% |
| Hodgdon Superformance | <<locked>> | 92% | 53,069 psi | 85% | 2815 fps | 98.5% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,187 psi | 58% | 1680 fps | 100% |
| Hodgdon VARGET | <<locked>> | 84% | 55,114 psi | 88% | 2723 fps | 100% |
| IMR 3031 | <<locked>> | 82% | 54,375 psi | 87% | 2700 fps | 100% |
| IMR 4064 | <<locked>> | 86% | 54,215 psi | 87% | 2703 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 84% | 53,664 psi | 86% | 2684 fps | 98.7% |
| IMR 4350 | <<locked>> | 96% | 55,825 psi | 90% | 2762 fps | 98.6% |
| IMR 4451 Enduron | <<locked>> | 90% | 53,722 psi | 86% | 2713 fps | 98.6% |
| IMR 4831 | <<locked>> | 96% | 54,592 psi | 88% | 2776 fps | 100% |
| IMR 4895 | <<locked>> | 84% | 53,229 psi | 85% | 2736 fps | 100% |
| IMR 4955 Enduronᴾ | <<locked>> | 100% | 54,911 psi | 88% | 2749 fps | 95.8% |
| IMR 8208 XBR | <<locked>> | 82% | 55,738 psi | 89% | 2710 fps | 100% |
| Lovex D073.6 | <<locked>> | 82% | 53,548 psi | 86% | 2687 fps | 100% |
| Lovex S060 | <<locked>> | 84% | 55,854 psi | 90% | 2687 fps | 100% |
| Lovex S062 | <<locked>> | 86% | 53,940 psi | 86% | 2694 fps | 100% |
| Lovex S065 | <<locked>> | 92% | 53,592 psi | 86% | 2710 fps | 99.5% |
| Lovex S070 | <<locked>> | 94% | 54,476 psi | 87% | 2746 fps | 99% |
| Lovex S071ᴾ | <<locked>> | 100% | 40,001 psi | 64% | 2530 fps | 97% |
| Norma 201 | <<locked>> | 84% | 55,738 psi | 89% | 2710 fps | 100% |
| Norma 202 | <<locked>> | 84% | 56,246 psi | 90% | 2703 fps | 100% |
| Norma 203B | <<locked>> | 86% | 54,708 psi | 88% | 2749 fps | 100% |
| Norma 204 | <<locked>> | 94% | 53,127 psi | 85% | 2762 fps | 97.2% |
| Norma MRPᴾ | <<locked>> | 100% | 50,691 psi | 81% | 2828 fps | 98.4% |
| Norma URP | <<locked>> | 94% | 52,866 psi | 85% | 2766 fps | 99.9% |
| Ramshot Big Game | <<locked>> | 86% | 55,201 psi | 89% | 2772 fps | 100% |
| Ramshot Hunter | <<locked>> | 96% | 55,347 psi | 89% | 2822 fps | 99.5% |
| Ramshot TAC | <<locked>> | 82% | 55,608 psi | 89% | 2736 fps | 99.7% |
| Ramshot Wild Boar | <<locked>> | 82% | 55,622 psi | 89% | 2749 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 36,680 psi | 59% | 1719 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 86% | 52,939 psi | 85% | 2703 fps | 99% |
| ReloadSwiss RS 52 | <<locked>> | 84% | 56,318 psi | 90% | 2828 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 90% | 55,941 psi | 90% | 2861 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 94% | 53,664 psi | 86% | 2802 fps | 99.9% |
| ReloadSwiss RS 70 | <<locked>> | 96% | 56,420 psi | 90% | 2887 fps | 100% |
| Rottweil R 901 | <<locked>> | 82% | 56,420 psi | 90% | 2680 fps | 100% |
| Rottweil R 902 | <<locked>> | 86% | 56,362 psi | 90% | 2707 fps | 100% |
| Rottweil R 903 | <<locked>> | 90% | 55,854 psi | 90% | 2749 fps | 100% |
| Rottweil R 904 | <<locked>> | 98% | 53,519 psi | 86% | 2736 fps | 96.2% |
| Rottweil R 905ᴾ | <<locked>> | 100% | 53,359 psi | 86% | 2789 fps | 97.6% |
| Rottweil R 907 | <<locked>> | 92% | 55,259 psi | 89% | 2733 fps | 98.5% |
| Shooters World Long Rifle | <<locked>> | 92% | 53,592 psi | 86% | 2710 fps | 99.5% |
| Shooters World Match Rifle | <<locked>> | 82% | 53,548 psi | 86% | 2687 fps | 100% |
| Shooters World Precision | <<locked>> | 86% | 53,940 psi | 86% | 2694 fps | 100% |
| Shooters World SW4350 | <<locked>> | 94% | 54,476 psi | 87% | 2746 fps | 99% |
| SNPE Vectan SP 11 | <<locked>> | 88% | 53,693 psi | 86% | 2759 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 82% | 54,491 psi | 87% | 2717 fps | 99.8% |
| SNPE Vectan SP 9 | <<locked>> | 84% | 55,448 psi | 89% | 2736 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 82% | 53,214 psi | 85% | 2595 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 88% | 53,911 psi | 86% | 2598 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 92% | 53,287 psi | 85% | 2661 fps | 98.6% |
| SNPE Vectan Tubal 8000ᴾ | <<locked>> | 100% | 52,866 psi | 85% | 2785 fps | 97.5% |
| Somchem S335 | <<locked>> | 84% | 56,362 psi | 90% | 2641 fps | 100% |
| Somchem S341 | <<locked>> | 82% | 53,983 psi | 87% | 2703 fps | 100% |
| Somchem S355 | <<locked>> | 90% | 55,651 psi | 89% | 2743 fps | 100% |
| Somchem S365 | <<locked>> | 98% | 55,230 psi | 89% | 2822 fps | 100% |
| Somchem S385ᴾ | <<locked>> | 100% | 54,201 psi | 87% | 2769 fps | 98.4% |
| Vihtavuori N133 | <<locked>> | 82% | 53,693 psi | 86% | 2579 fps | 100% |
| Vihtavuori N135 | <<locked>> | 86% | 56,260 psi | 90% | 2667 fps | 100% |
| Vihtavuori N140 | <<locked>> | 84% | 53,229 psi | 85% | 2638 fps | 100% |
| Vihtavuori N150 | <<locked>> | 90% | 53,824 psi | 86% | 2677 fps | 100% |
| Vihtavuori N160 | <<locked>> | 94% | 55,332 psi | 89% | 2766 fps | 100% |
| Vihtavuori N165ᴾ | <<locked>> | 100% | 46,615 psi | 75% | 2635 fps | 96.5% |
| Vihtavuori N530 | <<locked>> | 82% | 55,956 psi | 90% | 2707 fps | 100% |
| Vihtavuori N540 | <<locked>> | 86% | 55,100 psi | 88% | 2684 fps | 100% |
| Vihtavuori N550 | <<locked>> | 94% | 54,157 psi | 87% | 2766 fps | 99.9% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 50,473 psi | 81% | 2769 fps | 100% |
| Winchester 6.5 StaBALL | <<locked>> | 94% | 54,940 psi | 88% | 2736 fps | 100% |
| Winchester 760 | <<locked>> | 92% | 53,011 psi | 85% | 2779 fps | 98.7% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 40,582 psi | 65% | 2733 fps | 100% |
| Winchester StaBALL Match | <<locked>> | 84% | 55,303 psi | 89% | 2743 fps | 100% |
| Winchester Supreme 780ᴾ | <<locked>> | 100% | 50,691 psi | 81% | 2707 fps | 96.8% |
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% | 47,210 psi | 76% | 2546 fps | 100% |
| Accurate 2700 | <<locked>> | 80% | 45,745 psi | 73% | 2539 fps | 96.5% |
| Accurate 3100 | <<locked>> | 90% | 34,243 psi | 55% | 2408 fps | 95% |
| Accurate 4064 | <<locked>> | 80% | 44,672 psi | 72% | 2549 fps | 100% |
| Accurate 4350 | <<locked>> | 80% | 33,402 psi | 54% | 2402 fps | 96.7% |
| ADI AR 2206H | <<locked>> | 80% | 50,096 psi | 80% | 2661 fps | 100% |
| ADI AR 2208 | <<locked>> | 80% | 42,699 psi | 68% | 2523 fps | 99.2% |
| ADI AR 2209 | <<locked>> | 94% | 45,600 psi | 73% | 2651 fps | 95.4% |
| ADI Benchmark 8208 | <<locked>> | 80% | 52,199 psi | 84% | 2661 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 46,470 psi | 75% | 2720 fps | 99.7% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 42,699 psi | 68% | 2543 fps | 99.9% |
| Alliant Reloder-15 | <<locked>> | 80% | 45,716 psi | 73% | 2605 fps | 99.7% |
| Alliant Reloder-16 | 40.8 gr | 80% | 33,185 psi | 53% | 2415 fps | 96.8% |
| Alliant Reloder-17 | <<locked>> | 80% | 37,289 psi | 60% | 2536 fps | 99.3% |
| Alliant Reloder-19 | <<locked>> | 94% | 45,034 psi | 72% | 2644 fps | 95.5% |
| Alliant Reloder-22 | <<locked>> | 98% | 44,817 psi | 72% | 2690 fps | 95.6% |
| Alliant Reloder-23 | <<locked>> | 84% | 27,441 psi | 44% | 2283 fps | 95.8% |
| Alliant Reloder-25 | <<locked>> | 96% | 34,954 psi | 56% | 2493 fps | 95.7% |
| Alliant Reloder-26 | <<locked>> | 86% | 31,314 psi | 50% | 2448 fps | 95% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 49,690 psi | 80% | 2674 fps | 99.8% |
| Bofors RP3 | <<locked>> | 80% | 42,888 psi | 69% | 2552 fps | 99.9% |
| Bofors RP5 | <<locked>> | 98% | 44,817 psi | 72% | 2690 fps | 95.6% |
| Bofors RP7 | <<locked>> | 82% | 40,654 psi | 65% | 2477 fps | 95.4% |
| Hodgdon BL-C2 | <<locked>> | 80% | 51,938 psi | 83% | 2690 fps | 100% |
| Hodgdon H380 | <<locked>> | 80% | 43,265 psi | 69% | 2559 fps | 98.7% |
| Hodgdon H414 | <<locked>> | 82% | 38,014 psi | 61% | 2503 fps | 95.2% |
| Hodgdon H4350 | <<locked>> | 84% | 43,990 psi | 71% | 2579 fps | 95.6% |
| Hodgdon H4895 | <<locked>> | 80% | 50,662 psi | 81% | 2671 fps | 100% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 30,806 psi | 49% | 2320 fps | 97.5% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 47,094 psi | 76% | 2654 fps | 100% |
| Hodgdon Superformance | 48.8 gr | 84% | 39,813 psi | 64% | 2569 fps | 95.2% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,861 psi | 43% | 1496 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 48,573 psi | 78% | 2625 fps | 100% |
| IMR 3031 | <<locked>> | 80% | 51,010 psi | 82% | 2654 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 44,904 psi | 72% | 2552 fps | 99.6% |
| IMR 4166 Enduron | <<locked>> | 80% | 47,079 psi | 75% | 2575 fps | 97.6% |
| IMR 4350 | <<locked>> | 86% | 40,930 psi | 66% | 2507 fps | 95.5% |
| IMR 4451 Enduron | <<locked>> | 80% | 39,479 psi | 63% | 2454 fps | 95.5% |
| IMR 4831 | <<locked>> | 80% | 32,474 psi | 52% | 2365 fps | 96.4% |
| IMR 4895 | <<locked>> | 80% | 46,876 psi | 75% | 2635 fps | 99.9% |
| IMR 4955 Enduron | <<locked>> | 98% | 51,721 psi | 83% | 2697 fps | 95.1% |
| IMR 8208 XBR | <<locked>> | 80% | 52,199 psi | 84% | 2661 fps | 100% |
| Lovex D073.6 | <<locked>> | 80% | 50,082 psi | 80% | 2641 fps | 100% |
| Lovex S060 | <<locked>> | 80% | 49,617 psi | 80% | 2595 fps | 100% |
| Lovex S062 | <<locked>> | 80% | 45,005 psi | 72% | 2556 fps | 100% |
| Lovex S065 | <<locked>> | 80% | 37,028 psi | 59% | 2408 fps | 96.3% |
| Lovex S070 | <<locked>> | 82% | 37,565 psi | 60% | 2438 fps | 95.3% |
| Lovex S071 | <<locked>> | 96% | 35,114 psi | 56% | 2428 fps | 95.4% |
| Norma 201 | <<locked>> | 80% | 49,124 psi | 79% | 2612 fps | 100% |
| Norma 202 | <<locked>> | 80% | 49,501 psi | 79% | 2612 fps | 100% |
| Norma 203B | <<locked>> | 80% | 45,092 psi | 72% | 2595 fps | 99.8% |
| Norma 204 | <<locked>> | 90% | 46,311 psi | 74% | 2648 fps | 95.6% |
| Norma MRP | <<locked>> | 92% | 38,609 psi | 62% | 2592 fps | 95.1% |
| Norma URP | <<locked>> | 80% | 33,634 psi | 54% | 2405 fps | 96.6% |
| Ramshot Big Game | <<locked>> | 80% | 45,179 psi | 72% | 2618 fps | 99.8% |
| Ramshot Hunter | <<locked>> | 82% | 34,911 psi | 56% | 2441 fps | 95% |
| Ramshot TAC | <<locked>> | 80% | 52,185 psi | 84% | 2680 fps | 99.4% |
| Ramshot Wild Boar | <<locked>> | 80% | 52,127 psi | 84% | 2700 fps | 100% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,369 psi | 44% | 1535 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 43,526 psi | 70% | 2543 fps | 97.4% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 49,052 psi | 79% | 2717 fps | 99.9% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 39,668 psi | 64% | 2592 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 33,025 psi | 53% | 2415 fps | 96.1% |
| ReloadSwiss RS 70 | 44.7 gr | 80% | 32,764 psi | 53% | 2421 fps | 95.1% |
| Rottweil R 901 | <<locked>> | 80% | 53,142 psi | 85% | 2635 fps | 100% |
| Rottweil R 902 | <<locked>> | 80% | 46,746 psi | 75% | 2566 fps | 100% |
| Rottweil R 903 | <<locked>> | 80% | 40,422 psi | 65% | 2503 fps | 99.7% |
| Rottweil R 904 | <<locked>> | 96% | 50,372 psi | 81% | 2684 fps | 95.5% |
| Rottweil R 905 | <<locked>> | 94% | 43,801 psi | 70% | 2625 fps | 95.4% |
| Rottweil R 907 | <<locked>> | 82% | 40,654 psi | 65% | 2477 fps | 95.4% |
| Shooters World Long Rifle | <<locked>> | 80% | 37,028 psi | 59% | 2408 fps | 96.3% |
| Shooters World Match Rifle | <<locked>> | 80% | 50,082 psi | 80% | 2641 fps | 100% |
| Shooters World Precision | <<locked>> | 80% | 45,005 psi | 72% | 2556 fps | 100% |
| Shooters World SW4350 | <<locked>> | 82% | 37,565 psi | 60% | 2438 fps | 95.3% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 41,321 psi | 66% | 2552 fps | 99.4% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 50,952 psi | 82% | 2664 fps | 99.6% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 48,704 psi | 78% | 2635 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 50,328 psi | 81% | 2552 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 42,322 psi | 68% | 2431 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 82% | 38,783 psi | 62% | 2408 fps | 95.5% |
| SNPE Vectan Tubal 8000 | <<locked>> | 94% | 43,381 psi | 70% | 2621 fps | 95.2% |
| Somchem S335 | <<locked>> | 80% | 49,806 psi | 80% | 2552 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 50,546 psi | 81% | 2651 fps | 100% |
| Somchem S355 | <<locked>> | 80% | 40,843 psi | 65% | 2503 fps | 99.6% |
| Somchem S365 | <<locked>> | 80% | 30,153 psi | 48% | 2359 fps | 98.6% |
| Somchem S385 | <<locked>> | 92% | 41,597 psi | 67% | 2556 fps | 95.7% |
| Vihtavuori N133 | <<locked>> | 80% | 50,821 psi | 81% | 2539 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 46,934 psi | 75% | 2539 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 47,166 psi | 76% | 2549 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 39,015 psi | 63% | 2438 fps | 99.9% |
| Vihtavuori N160 | <<locked>> | 80% | 34,896 psi | 56% | 2402 fps | 96.9% |
| Vihtavuori N165 | <<locked>> | 98% | 43,801 psi | 70% | 2585 fps | 95.8% |
| Vihtavuori N530 | <<locked>> | 80% | 52,605 psi | 84% | 2661 fps | 100% |
| Vihtavuori N540 | <<locked>> | 80% | 45,281 psi | 73% | 2539 fps | 100% |
| Vihtavuori N550 | <<locked>> | 80% | 34,374 psi | 55% | 2402 fps | 96.6% |
| Vihtavuori N555 | <<locked>> | 84% | 29,849 psi | 48% | 2356 fps | 95.9% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 34,330 psi | 55% | 2379 fps | 98.8% |
| Winchester 760 | <<locked>> | 82% | 38,014 psi | 61% | 2503 fps | 95.2% |
| Winchester StaBALL HD | <<locked>> | 86% | 25,730 psi | 41% | 2297 fps | 95.1% |
| Winchester StaBALL Match | <<locked>> | 80% | 48,414 psi | 78% | 2641 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 96% | 44,324 psi | 71% | 2598 fps | 95.1% |
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 101 powders for .270 Win. loaded with the .277 | 150gr | Rhino Penetrator. ReloadSwiss RS 70 delivers the highest muzzle velocity at 2,887 fps; across all powders the maximum-charge window runs from 1,680 fps to 2,887 fps. Accurate 3100 gives the best case fill at 100 %, and 101 of the 101 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 1:9.0 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 70, Alliant Reloder-16, Hodgdon Superformance rank at the top here: for .270 Win. with the .277 | 150gr | 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.