Load Specifications
Bullet Manufacturer:Cutting Edge
Bullet Weight:150 gr
Bullet Diameter:0.277"
Bullet Length:<<locked>>
Case Length (l3):2.54"
Cartridge Length (C.O.L.):<<locked>>
Case Capacity:70 Grains of Water
Primer Size:Large Rifle (LR)
Barrel Length:24"
Max. allowed Pressure:72,519 psi
Recommended Twist Rate:1:8.0
Load data in caliber .270 Win. Ackley Improved with .277 | 150gr | CutEdge LZR MAX bullet and 119 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Hodgdon Superformance, Alliant Power Pro 2000-MR 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.
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>> | 86% | 65,166 psi | 90% | 2756 fps | 100% |
| Accurate 2460 | <<locked>> | 82% | 64,005 psi | 88% | 2799 fps | 100% |
| Accurate 2495 | <<locked>> | 90% | 65,151 psi | 90% | 2792 fps | 100% |
| Accurate 2520 | <<locked>> | 84% | 62,816 psi | 87% | 2818 fps | 100% |
| Accurate 2700 | <<locked>> | 90% | 63,498 psi | 88% | 2831 fps | 99.4% |
| Accurate 3100ᴾ | <<locked>> | 100% | 48,225 psi | 67% | 2697 fps | 98.9% |
| Accurate 4064 | <<locked>> | 92% | 64,992 psi | 90% | 2841 fps | 100% |
| Accurate 4350 | <<locked>> | 98% | 62,381 psi | 86% | 2913 fps | 100% |
| ADI APS 450 | <<locked>> | 86% | 64,397 psi | 89% | 2172 fps | 100% |
| ADI AR 2206H | <<locked>> | 88% | 64,672 psi | 89% | 2884 fps | 100% |
| ADI AR 2208 | <<locked>> | 92% | 61,902 psi | 85% | 2838 fps | 100% |
| ADI AR 2209ᴾ | <<locked>> | 100% | 55,854 psi | 77% | 2851 fps | 98% |
| ADI Benchmark 8208 | <<locked>> | 86% | 63,541 psi | 88% | 2831 fps | 100% |
| Alliant AR-Comp | <<locked>> | 86% | 65,412 psi | 90% | 2785 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 88% | 61,873 psi | 85% | 2972 fps | 100% |
| Alliant Reloder- TS 15.5 | <<locked>> | 92% | 62,714 psi | 86% | 2861 fps | 100% |
| Alliant Reloder-10x | <<locked>> | 82% | 64,339 psi | 89% | 2756 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 90% | 63,092 psi | 87% | 2887 fps | 100% |
| Alliant Reloder-16ᴾ | <<locked>> | 100% | 63,092 psi | 87% | 2966 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 94% | 60,858 psi | 84% | 2943 fps | 100% |
| Alliant Reloder-19ᴾ | <<locked>> | 100% | 54,911 psi | 76% | 2835 fps | 98% |
| Alliant Reloder-22ᴾ | <<locked>> | 100% | 48,370 psi | 67% | 2776 fps | 96.9% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 45,440 psi | 63% | 2720 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 39,755 psi | 55% | 2635 fps | 97.9% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 51,750 psi | 71% | 2900 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 88% | 65,311 psi | 90% | 2910 fps | 100% |
| Bofors RP3 | <<locked>> | 92% | 63,744 psi | 88% | 2877 fps | 100% |
| Bofors RP5ᴾ | <<locked>> | 100% | 48,370 psi | 67% | 2776 fps | 96.9% |
| Bofors RP7 | <<locked>> | 96% | 63,106 psi | 87% | 2867 fps | 99.5% |
| Hodgdon Benchmark | <<locked>> | 86% | 64,832 psi | 89% | 2805 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 86% | 63,759 psi | 88% | 2867 fps | 100% |
| Hodgdon CFE223 | <<locked>> | 82% | 62,424 psi | 86% | 2927 fps | 100% |
| Hodgdon H322 | <<locked>> | 82% | 64,484 psi | 89% | 2812 fps | 100% |
| Hodgdon H335 | <<locked>> | 82% | 65,615 psi | 90% | 2841 fps | 100% |
| Hodgdon H380 | <<locked>> | 92% | 64,774 psi | 89% | 2904 fps | 100% |
| Hodgdon H414 | <<locked>> | 98% | 65,209 psi | 90% | 2972 fps | 99.9% |
| Hodgdon H4350 | <<locked>> | 96% | 64,963 psi | 90% | 2930 fps | 99.3% |
| Hodgdon H4895 | <<locked>> | 88% | 65,398 psi | 90% | 2890 fps | 100% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 59,205 psi | 82% | 2831 fps | 100% |
| Hodgdon LEVERevolution | <<locked>> | 88% | 62,250 psi | 86% | 2887 fps | 100% |
| Hodgdon Superformance | <<locked>> | 96% | 62,236 psi | 86% | 2966 fps | 99.6% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,085 psi | 50% | 1696 fps | 100% |
| Hodgdon VARGET | <<locked>> | 88% | 62,961 psi | 87% | 2848 fps | 100% |
| IMR 3031 | <<locked>> | 86% | 62,323 psi | 86% | 2815 fps | 100% |
| IMR 4064 | <<locked>> | 92% | 65,296 psi | 90% | 2867 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 90% | 65,021 psi | 90% | 2867 fps | 99.8% |
| IMR 4198 | <<locked>> | 82% | 63,657 psi | 88% | 2707 fps | 100% |
| IMR 4350ᴾ | <<locked>> | 100% | 63,918 psi | 88% | 2897 fps | 99.6% |
| IMR 4451 Enduron | <<locked>> | 96% | 64,948 psi | 90% | 2894 fps | 99.8% |
| IMR 4831ᴾ | <<locked>> | 100% | 62,787 psi | 87% | 2904 fps | 100% |
| IMR 4895 | <<locked>> | 90% | 64,759 psi | 89% | 2910 fps | 100% |
| IMR 4955 Enduronᴾ | <<locked>> | 100% | 55,463 psi | 76% | 2779 fps | 96.3% |
| IMR 8208 XBR | <<locked>> | 86% | 63,541 psi | 88% | 2831 fps | 100% |
| Lovex D073.5 | <<locked>> | 82% | 63,991 psi | 88% | 2815 fps | 100% |
| Lovex D073.6 | <<locked>> | 86% | 61,438 psi | 85% | 2808 fps | 100% |
| Lovex S060 | <<locked>> | 88% | 63,251 psi | 87% | 2805 fps | 100% |
| Lovex S062 | <<locked>> | 92% | 65,122 psi | 90% | 2854 fps | 100% |
| Lovex S065 | <<locked>> | 98% | 64,701 psi | 89% | 2884 fps | 100% |
| Lovex S070 | <<locked>> | 98% | 62,352 psi | 86% | 2877 fps | 99.8% |
| Lovex S071ᴾ | <<locked>> | 100% | 39,929 psi | 55% | 2549 fps | 97.2% |
| Norma 201 | <<locked>> | 88% | 63,034 psi | 87% | 2825 fps | 100% |
| Norma 202 | <<locked>> | 88% | 64,165 psi | 88% | 2822 fps | 100% |
| Norma 203B | <<locked>> | 90% | 62,250 psi | 86% | 2871 fps | 100% |
| Norma 204 | <<locked>> | 98% | 61,250 psi | 84% | 2904 fps | 98.6% |
| Norma MRPᴾ | <<locked>> | 100% | 51,082 psi | 70% | 2858 fps | 98.7% |
| Norma URPᴾ | <<locked>> | 100% | 64,832 psi | 89% | 2946 fps | 100% |
| Ramshot Big Game | <<locked>> | 90% | 63,875 psi | 88% | 2904 fps | 100% |
| Ramshot Hunterᴾ | <<locked>> | 100% | 63,904 psi | 88% | 2956 fps | 100% |
| Ramshot TAC | <<locked>> | 86% | 64,005 psi | 88% | 2871 fps | 100% |
| Ramshot Wild Boar | <<locked>> | 86% | 63,933 psi | 88% | 2877 fps | 100% |
| Ramshot X-Terminator | <<locked>> | 84% | 64,179 psi | 89% | 2835 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 36,521 psi | 50% | 1732 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 82% | 62,758 psi | 87% | 2805 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 92% | 64,701 psi | 89% | 2887 fps | 99.9% |
| ReloadSwiss RS 52 | <<locked>> | 88% | 65,006 psi | 90% | 2963 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 94% | 64,861 psi | 89% | 2989 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 98% | 62,584 psi | 86% | 2943 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 98% | 61,380 psi | 85% | 2976 fps | 100% |
| Rottweil R 901 | <<locked>> | 86% | 63,396 psi | 87% | 2792 fps | 100% |
| Rottweil R 902 | <<locked>> | 90% | 63,759 psi | 88% | 2822 fps | 100% |
| Rottweil R 903 | <<locked>> | 94% | 63,599 psi | 88% | 2867 fps | 100% |
| Rottweil R 904ᴾ | <<locked>> | 100% | 57,609 psi | 79% | 2818 fps | 97.3% |
| Rottweil R 905ᴾ | <<locked>> | 100% | 53,969 psi | 74% | 2822 fps | 98% |
| Rottweil R 907 | <<locked>> | 96% | 63,106 psi | 87% | 2867 fps | 99.5% |
| Shooters World Long Rifle | <<locked>> | 98% | 64,701 psi | 89% | 2884 fps | 100% |
| Shooters World Match Rifle | <<locked>> | 86% | 61,438 psi | 85% | 2808 fps | 100% |
| Shooters World Precision | <<locked>> | 92% | 65,122 psi | 90% | 2854 fps | 100% |
| Shooters World SW4350 | <<locked>> | 98% | 62,352 psi | 86% | 2877 fps | 99.8% |
| SNPE Vectan SP 11 | <<locked>> | 92% | 61,757 psi | 85% | 2887 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 86% | 62,627 psi | 86% | 2848 fps | 100% |
| SNPE Vectan SP 9 | <<locked>> | 88% | 63,295 psi | 87% | 2861 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 88% | 64,527 psi | 89% | 2753 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 94% | 65,122 psi | 90% | 2749 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 98% | 65,079 psi | 90% | 2841 fps | 99.8% |
| SNPE Vectan Tubal 8000ᴾ | <<locked>> | 100% | 53,490 psi | 74% | 2815 fps | 97.9% |
| Somchem S321 | <<locked>> | 84% | 65,267 psi | 90% | 2864 fps | 100% |
| Somchem S335 | <<locked>> | 88% | 63,614 psi | 88% | 2746 fps | 100% |
| Somchem S341 | <<locked>> | 86% | 62,424 psi | 86% | 2831 fps | 100% |
| Somchem S355 | <<locked>> | 94% | 63,570 psi | 88% | 2864 fps | 100% |
| Somchem S361ᴾ | <<locked>> | 100% | 59,814 psi | 82% | 2815 fps | 96.8% |
| Somchem S365ᴾ | <<locked>> | 100% | 59,698 psi | 82% | 2894 fps | 100% |
| Somchem S385ᴾ | <<locked>> | 100% | 54,636 psi | 75% | 2799 fps | 98.7% |
| Vihtavuori N130 | <<locked>> | 84% | 63,599 psi | 88% | 2700 fps | 100% |
| Vihtavuori N133 | <<locked>> | 88% | 64,890 psi | 89% | 2730 fps | 100% |
| Vihtavuori N135 | <<locked>> | 90% | 64,165 psi | 88% | 2776 fps | 100% |
| Vihtavuori N140 | <<locked>> | 90% | 64,803 psi | 89% | 2799 fps | 100% |
| Vihtavuori N150 | <<locked>> | 96% | 65,485 psi | 90% | 2838 fps | 100% |
| Vihtavuori N160 | <<locked>> | 98% | 63,425 psi | 87% | 2890 fps | 100% |
| Vihtavuori N165ᴾ | <<locked>> | 100% | 47,007 psi | 65% | 2664 fps | 96.9% |
| Vihtavuori N530 | <<locked>> | 86% | 64,426 psi | 89% | 2835 fps | 100% |
| Vihtavuori N540 | <<locked>> | 90% | 62,801 psi | 87% | 2799 fps | 100% |
| Vihtavuori N550 | <<locked>> | 98% | 62,381 psi | 86% | 2897 fps | 100% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 50,995 psi | 70% | 2795 fps | 100% |
| Winchester 6.5 StaBALL | <<locked>> | 98% | 63,686 psi | 88% | 2861 fps | 100% |
| Winchester 748 | <<locked>> | 86% | 65,050 psi | 90% | 2881 fps | 100% |
| Winchester 760 | <<locked>> | 98% | 65,586 psi | 90% | 2976 fps | 99.9% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 40,915 psi | 56% | 2762 fps | 100% |
| Winchester StaBALL Match | <<locked>> | 88% | 63,599 psi | 88% | 2871 fps | 100% |
| Winchester Supreme 780ᴾ | <<locked>> | 100% | 51,140 psi | 71% | 2736 fps | 97.1% |
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% | 54,099 psi | 75% | 2625 fps | 100% |
| Accurate 2460 | <<locked>> | 80% | 59,973 psi | 83% | 2749 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 46,833 psi | 65% | 2562 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 55,042 psi | 76% | 2720 fps | 100% |
| Accurate 2700 | <<locked>> | 80% | 45,643 psi | 63% | 2562 fps | 96.8% |
| Accurate 3100 | <<locked>> | 90% | 33,924 psi | 47% | 2421 fps | 95.2% |
| Accurate 4064 | <<locked>> | 80% | 44,382 psi | 61% | 2566 fps | 100% |
| Accurate 4350 | <<locked>> | 80% | 33,170 psi | 46% | 2418 fps | 96.8% |
| ADI APS 450 | <<locked>> | 80% | 58,218 psi | 80% | 2090 fps | 100% |
| ADI AR 2206H | <<locked>> | 80% | 50,256 psi | 69% | 2684 fps | 100% |
| ADI AR 2208 | <<locked>> | 80% | 42,873 psi | 59% | 2546 fps | 99.4% |
| ADI AR 2209 | <<locked>> | 92% | 42,931 psi | 59% | 2621 fps | 95% |
| ADI Benchmark 8208 | <<locked>> | 80% | 52,417 psi | 72% | 2684 fps | 100% |
| Alliant AR-Comp | <<locked>> | 80% | 53,896 psi | 74% | 2654 fps | 100% |
| Alliant Power Pro 2000-MR | 45.9 gr | 80% | 46,528 psi | 64% | 2743 fps | 99.8% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 42,772 psi | 59% | 2566 fps | 99.9% |
| Alliant Reloder-10x | <<locked>> | 80% | 60,626 psi | 84% | 2710 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 80% | 45,788 psi | 63% | 2628 fps | 99.8% |
| Alliant Reloder-16 | <<locked>> | 80% | 33,156 psi | 46% | 2434 fps | 97.1% |
| Alliant Reloder-17 | 45.2 gr | 80% | 37,217 psi | 51% | 2556 fps | 99.4% |
| Alliant Reloder-19 | <<locked>> | 92% | 42,409 psi | 58% | 2618 fps | 95% |
| Alliant Reloder-22 | <<locked>> | 96% | 42,235 psi | 58% | 2657 fps | 95.2% |
| Alliant Reloder-23 | <<locked>> | 84% | 27,151 psi | 37% | 2297 fps | 96% |
| Alliant Reloder-25 | <<locked>> | 94% | 32,866 psi | 45% | 2461 fps | 95.1% |
| Alliant Reloder-26 | <<locked>> | 86% | 31,024 psi | 43% | 2461 fps | 95.3% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 49,980 psi | 69% | 2700 fps | 99.9% |
| Bofors RP3 | <<locked>> | 80% | 42,743 psi | 59% | 2572 fps | 100% |
| Bofors RP5 | <<locked>> | 96% | 42,235 psi | 58% | 2657 fps | 95.2% |
| Bofors RP7 | <<locked>> | 82% | 40,567 psi | 56% | 2500 fps | 95.6% |
| Hodgdon Benchmark | <<locked>> | 80% | 53,983 psi | 74% | 2667 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 80% | 51,895 psi | 72% | 2710 fps | 100% |
| Hodgdon CFE223 | <<locked>> | 80% | 58,073 psi | 80% | 2871 fps | 100% |
| Hodgdon H322 | <<locked>> | 80% | 60,336 psi | 83% | 2766 fps | 100% |
| Hodgdon H335 | <<locked>> | 80% | 61,569 psi | 85% | 2792 fps | 100% |
| Hodgdon H380 | <<locked>> | 80% | 43,453 psi | 60% | 2582 fps | 98.9% |
| Hodgdon H414 | <<locked>> | 82% | 38,174 psi | 53% | 2530 fps | 95.6% |
| Hodgdon H4350 | <<locked>> | 82% | 41,394 psi | 57% | 2549 fps | 95.1% |
| Hodgdon H4895 | <<locked>> | 80% | 50,792 psi | 70% | 2694 fps | 100% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 30,530 psi | 42% | 2333 fps | 97.7% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 47,210 psi | 65% | 2674 fps | 100% |
| Hodgdon Superformance | 50.2 gr | 84% | 39,929 psi | 55% | 2595 fps | 95.7% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,731 psi | 37% | 1509 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 48,805 psi | 67% | 2648 fps | 100% |
| IMR 3031 | <<locked>> | 80% | 51,372 psi | 71% | 2677 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 45,049 psi | 62% | 2579 fps | 99.7% |
| IMR 4166 Enduron | <<locked>> | 80% | 47,181 psi | 65% | 2598 fps | 97.8% |
| IMR 4198 | <<locked>> | 80% | 60,321 psi | 83% | 2667 fps | 100% |
| IMR 4350 | <<locked>> | 84% | 38,450 psi | 53% | 2477 fps | 95% |
| IMR 4451 Enduron | <<locked>> | 80% | 39,552 psi | 55% | 2480 fps | 95.8% |
| IMR 4831 | <<locked>> | 80% | 32,126 psi | 44% | 2375 fps | 96.5% |
| IMR 4895 | <<locked>> | 80% | 46,949 psi | 65% | 2657 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 98% | 51,982 psi | 72% | 2723 fps | 95.5% |
| IMR 8208 XBR | <<locked>> | 80% | 52,417 psi | 72% | 2684 fps | 100% |
| Lovex D073.5 | <<locked>> | 80% | 59,988 psi | 83% | 2766 fps | 100% |
| Lovex D073.6 | <<locked>> | 80% | 49,995 psi | 69% | 2657 fps | 100% |
| Lovex S060 | <<locked>> | 80% | 49,850 psi | 69% | 2621 fps | 100% |
| Lovex S062 | <<locked>> | 80% | 45,049 psi | 62% | 2575 fps | 100% |
| Lovex S065 | <<locked>> | 80% | 36,898 psi | 51% | 2428 fps | 96.6% |
| Lovex S070 | <<locked>> | 82% | 37,391 psi | 52% | 2457 fps | 95.5% |
| Lovex S071 | <<locked>> | 96% | 34,853 psi | 48% | 2444 fps | 95.6% |
| Norma 201 | <<locked>> | 80% | 49,139 psi | 68% | 2631 fps | 100% |
| Norma 202 | <<locked>> | 80% | 49,676 psi | 69% | 2631 fps | 100% |
| Norma 203B | <<locked>> | 80% | 45,150 psi | 62% | 2618 fps | 99.9% |
| Norma 204 | <<locked>> | 88% | 43,584 psi | 60% | 2618 fps | 95.1% |
| Norma MRP | <<locked>> | 92% | 38,624 psi | 53% | 2615 fps | 95.5% |
| Norma URP | <<locked>> | 80% | 33,591 psi | 46% | 2421 fps | 96.8% |
| Ramshot Big Game | <<locked>> | 80% | 45,194 psi | 62% | 2635 fps | 99.8% |
| Ramshot Hunter | <<locked>> | 82% | 34,708 psi | 48% | 2457 fps | 95.3% |
| Ramshot TAC | <<locked>> | 80% | 52,446 psi | 72% | 2707 fps | 99.6% |
| Ramshot Wild Boar | <<locked>> | 80% | 52,489 psi | 72% | 2723 fps | 100% |
| Ramshot X-Terminator | <<locked>> | 80% | 56,347 psi | 78% | 2736 fps | 100% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,195 psi | 38% | 1549 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 58,856 psi | 81% | 2756 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 43,700 psi | 60% | 2569 fps | 97.7% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 49,211 psi | 68% | 2740 fps | 99.9% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 39,624 psi | 55% | 2612 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 33,040 psi | 46% | 2434 fps | 96.4% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 32,532 psi | 45% | 2438 fps | 95.4% |
| Rottweil R 901 | <<locked>> | 80% | 53,171 psi | 73% | 2661 fps | 100% |
| Rottweil R 902 | <<locked>> | 80% | 46,775 psi | 65% | 2585 fps | 100% |
| Rottweil R 903 | <<locked>> | 80% | 40,263 psi | 56% | 2520 fps | 99.7% |
| Rottweil R 904 | <<locked>> | 94% | 47,718 psi | 66% | 2661 fps | 95.1% |
| Rottweil R 905 | <<locked>> | 94% | 44,106 psi | 61% | 2654 fps | 95.8% |
| Rottweil R 907 | <<locked>> | 82% | 40,567 psi | 56% | 2500 fps | 95.6% |
| Shooters World Long Rifle | <<locked>> | 80% | 36,898 psi | 51% | 2428 fps | 96.6% |
| Shooters World Match Rifle | <<locked>> | 80% | 49,995 psi | 69% | 2657 fps | 100% |
| Shooters World Precision | <<locked>> | 80% | 45,049 psi | 62% | 2575 fps | 100% |
| Shooters World SW4350 | <<locked>> | 82% | 37,391 psi | 52% | 2457 fps | 95.5% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 41,321 psi | 57% | 2572 fps | 99.5% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 51,111 psi | 70% | 2687 fps | 99.7% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 48,733 psi | 67% | 2657 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 50,314 psi | 69% | 2575 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 42,235 psi | 58% | 2448 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 82% | 38,566 psi | 53% | 2428 fps | 95.7% |
| SNPE Vectan Tubal 8000 | <<locked>> | 94% | 43,685 psi | 60% | 2648 fps | 95.6% |
| Somchem S321 | <<locked>> | 80% | 57,116 psi | 79% | 2762 fps | 100% |
| Somchem S335 | <<locked>> | 80% | 49,937 psi | 69% | 2572 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 50,836 psi | 70% | 2677 fps | 100% |
| Somchem S355 | <<locked>> | 80% | 40,814 psi | 56% | 2523 fps | 99.7% |
| Somchem S361 | <<locked>> | 96% | 52,199 psi | 72% | 2707 fps | 95.3% |
| Somchem S365 | <<locked>> | 80% | 30,008 psi | 41% | 2375 fps | 98.8% |
| Somchem S385 | <<locked>> | 90% | 39,030 psi | 54% | 2526 fps | 95.2% |
| Vihtavuori N130 | <<locked>> | 80% | 56,521 psi | 78% | 2618 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 50,865 psi | 70% | 2562 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 46,847 psi | 65% | 2556 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 47,311 psi | 65% | 2572 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 38,986 psi | 54% | 2457 fps | 99.9% |
| Vihtavuori N160 | <<locked>> | 80% | 34,853 psi | 48% | 2421 fps | 97.2% |
| Vihtavuori N165 | <<locked>> | 96% | 41,031 psi | 57% | 2556 fps | 95.3% |
| Vihtavuori N530 | <<locked>> | 80% | 52,794 psi | 73% | 2684 fps | 100% |
| Vihtavuori N540 | <<locked>> | 80% | 45,556 psi | 63% | 2566 fps | 100% |
| Vihtavuori N550 | <<locked>> | 80% | 34,418 psi | 47% | 2425 fps | 96.8% |
| Vihtavuori N555 | <<locked>> | 82% | 27,528 psi | 38% | 2310 fps | 95.1% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 34,287 psi | 47% | 2398 fps | 98.9% |
| Winchester 748 | <<locked>> | 80% | 53,098 psi | 73% | 2730 fps | 100% |
| Winchester 760 | <<locked>> | 82% | 38,174 psi | 53% | 2530 fps | 95.6% |
| Winchester StaBALL HD | <<locked>> | 86% | 25,512 psi | 35% | 2316 fps | 95.5% |
| Winchester StaBALL Match | <<locked>> | 80% | 48,733 psi | 67% | 2664 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 96% | 44,411 psi | 61% | 2621 fps | 95.5% |
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 133 powders for .270 Win. Ackley Improved loaded with the .277 | 150gr | CutEdge LZR MAX. ReloadSwiss RS 60 delivers the highest muzzle velocity at 2,989 fps; across all powders the maximum-charge window runs from 1,696 fps to 2,989 fps. Accurate 3100 gives the best case fill at 100 %, and 133 of the 133 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (500 MPa), the top charges use 50–90 %, leaving at least 10 % headroom. The 150.0 gr projectile in 0.277" calls for a 1:8.0 twist; slower twists will usually not stabilise this weight. Accurate 3100, Accurate MAGPRO, ADI AR 2209 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. Hodgdon Superformance, Alliant Power Pro 2000-MR, Alliant Reloder-17 rank at the top here: for .270 Win. Ackley Improved with the .277 | 150gr | CutEdge LZR MAX they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, Accurate MAGPRO, Baschieri & Pellagri 109, Hodgdon H1000 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.