Load Specifications
Bullet Manufacturer:Reichenberg
Bullet Weight:154 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:1:10.5
Load data in caliber .270 Win. Ackley Improved with .277 | 154gr | Reichenberg Mag Dr ckjagd bullet and 120 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-16.
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% | 63,498 psi | 88% | 2717 fps | 100% |
| Accurate 2495 | <<locked>> | 86% | 63,962 psi | 88% | 2753 fps | 100% |
| Accurate 2520 | <<locked>> | 82% | 63,802 psi | 88% | 2812 fps | 100% |
| Accurate 2700 | <<locked>> | 90% | 62,888 psi | 87% | 2802 fps | 99.7% |
| Accurate 3100ᴾ | <<locked>> | 100% | 56,304 psi | 78% | 2787 fps | 99.9% |
| Accurate 4064 | <<locked>> | 88% | 64,455 psi | 89% | 2808 fps | 100% |
| Accurate 4350 | <<locked>> | 94% | 61,772 psi | 85% | 2884 fps | 100% |
| ADI APS 450 | <<locked>> | 86% | 64,556 psi | 89% | 2182 fps | 100% |
| ADI AR 2206H | <<locked>> | 84% | 62,946 psi | 87% | 2844 fps | 100% |
| ADI AR 2208 | <<locked>> | 90% | 63,962 psi | 88% | 2847 fps | 100% |
| ADI AR 2209ᴾ | <<locked>> | 100% | 64,411 psi | 89% | 2935 fps | 99.4% |
| ADI AR 2213ᴾ | <<locked>> | 100% | 56,347 psi | 78% | 2875 fps | 97.7% |
| ADI Benchmark 8208 | <<locked>> | 84% | 65,267 psi | 90% | 2835 fps | 100% |
| Alliant AR-Comp | <<locked>> | 82% | 63,904 psi | 88% | 2745 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 86% | 64,585 psi | 89% | 2983 fps | 100% |
| Alliant Power Pro Varmintᴾ | <<locked>> | 100% | 62,700 psi | 86% | 2930 fps | 99.4% |
| Alliant Reloder- TS 15.5 | <<locked>> | 90% | 65,224 psi | 90% | 2868 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 86% | 61,511 psi | 85% | 2845 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 96% | 62,134 psi | 86% | 2931 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 92% | 64,585 psi | 89% | 2962 fps | 100% |
| Alliant Reloder-19ᴾ | <<locked>> | 100% | 62,149 psi | 86% | 2920 fps | 99.3% |
| Alliant Reloder-22ᴾ | <<locked>> | 100% | 55,317 psi | 76% | 2871 fps | 98.8% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 52,939 psi | 73% | 2799 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 45,556 psi | 63% | 2737 fps | 99.6% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 60,988 psi | 84% | 2999 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 84% | 63,121 psi | 87% | 2867 fps | 100% |
| Bofors RP15ᴾ | <<locked>> | 100% | 50,459 psi | 70% | 2792 fps | 97.9% |
| Bofors RP3 | <<locked>> | 88% | 62,555 psi | 86% | 2840 fps | 100% |
| Bofors RP5ᴾ | <<locked>> | 100% | 55,201 psi | 76% | 2871 fps | 98.8% |
| Bofors RP7 | <<locked>> | 94% | 65,267 psi | 90% | 2882 fps | 99.9% |
| Hodgdon Benchmark | <<locked>> | 82% | 62,279 psi | 86% | 2757 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 82% | 61,786 psi | 85% | 2818 fps | 100% |
| Hodgdon H322 | <<locked>> | 82% | 65,151 psi | 90% | 2798 fps | 100% |
| Hodgdon H380 | <<locked>> | 88% | 63,034 psi | 87% | 2864 fps | 100% |
| Hodgdon H414 | <<locked>> | 90% | 61,467 psi | 85% | 2905 fps | 99.9% |
| Hodgdon H4350 | <<locked>> | 96% | 65,224 psi | 90% | 2920 fps | 99.7% |
| Hodgdon H4831ᴾ | <<locked>> | 100% | 52,634 psi | 73% | 2746 fps | 96.1% |
| Hodgdon H4831 SCᴾ | <<locked>> | 100% | 60,684 psi | 84% | 2857 fps | 97.5% |
| Hodgdon H4895 | <<locked>> | 84% | 63,730 psi | 88% | 2851 fps | 100% |
| Hodgdon Hybrid 100V | <<locked>> | 98% | 64,121 psi | 88% | 2852 fps | 100% |
| Hodgdon LEVERevolution | <<locked>> | 88% | 64,817 psi | 89% | 2894 fps | 100% |
| Hodgdon Retumboᴾ | <<locked>> | 100% | 44,411 psi | 61% | 2766 fps | 97.3% |
| Hodgdon Superformance | <<locked>> | 94% | 65,340 psi | 90% | 2988 fps | 100% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 37,275 psi | 51% | 1705 fps | 100% |
| Hodgdon VARGET | <<locked>> | 88% | 63,469 psi | 88% | 2835 fps | 100% |
| IMR 3031 | <<locked>> | 86% | 63,135 psi | 87% | 2800 fps | 100% |
| IMR 4064 | <<locked>> | 90% | 62,555 psi | 86% | 2818 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 92% | 64,919 psi | 90% | 2853 fps | 100% |
| IMR 4350 | <<locked>> | 96% | 62,656 psi | 86% | 2867 fps | 99.8% |
| IMR 4451 Enduron | <<locked>> | 92% | 62,961 psi | 87% | 2854 fps | 99.9% |
| IMR 4831ᴾ | <<locked>> | 100% | 63,933 psi | 88% | 2877 fps | 100% |
| IMR 4895 | <<locked>> | 86% | 63,135 psi | 87% | 2871 fps | 100% |
| IMR 4955 Enduronᴾ | <<locked>> | 100% | 61,656 psi | 85% | 2861 fps | 98.1% |
| IMR 7828 SSCᴾ | <<locked>> | 100% | 58,813 psi | 81% | 2911 fps | 98.1% |
| IMR 8208 XBR | <<locked>> | 84% | 65,267 psi | 90% | 2833 fps | 100% |
| Lovex D073.6 | <<locked>> | 84% | 63,802 psi | 88% | 2812 fps | 100% |
| Lovex S060 | <<locked>> | 86% | 64,977 psi | 90% | 2810 fps | 100% |
| Lovex S062 | <<locked>> | 88% | 63,759 psi | 88% | 2820 fps | 100% |
| Lovex S065 | <<locked>> | 94% | 63,077 psi | 87% | 2848 fps | 100% |
| Lovex S070 | <<locked>> | 96% | 65,035 psi | 90% | 2898 fps | 100% |
| Lovex S071ᴾ | <<locked>> | 100% | 46,717 psi | 64% | 2640 fps | 99% |
| Norma 201 | <<locked>> | 86% | 65,093 psi | 90% | 2828 fps | 100% |
| Norma 202 | <<locked>> | 84% | 62,265 psi | 86% | 2776 fps | 100% |
| Norma 203B | <<locked>> | 88% | 64,832 psi | 89% | 2882 fps | 100% |
| Norma 204 | <<locked>> | 96% | 64,266 psi | 89% | 2930 fps | 99.4% |
| Norma MRPᴾ | <<locked>> | 100% | 60,582 psi | 84% | 2954 fps | 99.8% |
| Norma URP | <<locked>> | 96% | 64,049 psi | 88% | 2916 fps | 100% |
| Ramshot Big Game | <<locked>> | 86% | 61,888 psi | 85% | 2858 fps | 100% |
| Ramshot Grandᴾ | <<locked>> | 100% | 62,888 psi | 87% | 2987 fps | 99% |
| Ramshot Hunter | <<locked>> | 96% | 62,845 psi | 87% | 2926 fps | 100% |
| Ramshot Magnumᴾ | <<locked>> | 100% | 54,679 psi | 75% | 2838 fps | 99.1% |
| Ramshot TAC | <<locked>> | 84% | 65,427 psi | 90% | 2873 fps | 100% |
| Ramshot Wild Boar | <<locked>> | 82% | 61,685 psi | 85% | 2831 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 37,840 psi | 52% | 1747 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 88% | 62,671 psi | 86% | 2849 fps | 100% |
| ReloadSwiss RS 52 | <<locked>> | 84% | 63,179 psi | 87% | 2917 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 90% | 63,686 psi | 88% | 2945 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 94% | 61,641 psi | 85% | 2907 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 96% | 64,513 psi | 89% | 2995 fps | 100% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 45,049 psi | 62% | 2759 fps | 98.3% |
| Rottweil R 901 | <<locked>> | 84% | 65,543 psi | 90% | 2794 fps | 100% |
| Rottweil R 902 | <<locked>> | 86% | 61,888 psi | 85% | 2780 fps | 100% |
| Rottweil R 903 | <<locked>> | 90% | 62,366 psi | 86% | 2833 fps | 100% |
| Rottweil R 904 | <<locked>> | 98% | 60,205 psi | 83% | 2846 fps | 98.4% |
| Rottweil R 905ᴾ | <<locked>> | 100% | 61,351 psi | 85% | 2905 fps | 99.3% |
| Rottweil R 907 | <<locked>> | 94% | 65,267 psi | 90% | 2882 fps | 99.9% |
| Shooters World Long Rifle | <<locked>> | 94% | 63,077 psi | 87% | 2848 fps | 100% |
| Shooters World Match Rifle | <<locked>> | 84% | 63,802 psi | 88% | 2812 fps | 100% |
| Shooters World Precision | <<locked>> | 88% | 63,759 psi | 88% | 2820 fps | 100% |
| Shooters World SW4350 | <<locked>> | 96% | 65,035 psi | 90% | 2897 fps | 100% |
| SNPE Vectan SP 11 | <<locked>> | 90% | 64,382 psi | 89% | 2896 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 84% | 64,890 psi | 89% | 2858 fps | 100% |
| SNPE Vectan SP 9 | <<locked>> | 86% | 65,108 psi | 90% | 2864 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 84% | 61,917 psi | 85% | 2705 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 90% | 63,121 psi | 87% | 2708 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 94% | 63,179 psi | 87% | 2808 fps | 99.9% |
| SNPE Vectan Tubal 8000ᴾ | <<locked>> | 100% | 60,394 psi | 83% | 2900 fps | 99.3% |
| Somchem S335 | <<locked>> | 86% | 65,296 psi | 90% | 2745 fps | 100% |
| Somchem S341 | <<locked>> | 84% | 64,252 psi | 89% | 2836 fps | 100% |
| Somchem S355 | <<locked>> | 90% | 62,221 psi | 86% | 2827 fps | 100% |
| Somchem S361 | <<locked>> | 98% | 63,367 psi | 87% | 2844 fps | 98% |
| Somchem S365 | <<locked>> | 98% | 63,599 psi | 88% | 2911 fps | 100% |
| Somchem S385ᴾ | <<locked>> | 100% | 62,743 psi | 87% | 2880 fps | 99.7% |
| Unknown powder | <<locked>> | 94% | 64,571 psi | 89% | 2921 fps | 100% |
| Vihtavuori N130 | <<locked>> | 82% | 63,657 psi | 88% | 2685 fps | 100% |
| Vihtavuori N133 | <<locked>> | 86% | 61,888 psi | 85% | 2680 fps | 100% |
| Vihtavuori N135 | <<locked>> | 86% | 62,511 psi | 86% | 2733 fps | 100% |
| Vihtavuori N140 | <<locked>> | 86% | 61,772 psi | 85% | 2744 fps | 100% |
| Vihtavuori N150 | <<locked>> | 96% | 63,672 psi | 88% | 2801 fps | 100% |
| Vihtavuori N160 | <<locked>> | 94% | 65,195 psi | 90% | 2887 fps | 100% |
| Vihtavuori N165ᴾ | <<locked>> | 100% | 52,895 psi | 73% | 2720 fps | 98.4% |
| Vihtavuori N530 | <<locked>> | 82% | 65,064 psi | 90% | 2839 fps | 100% |
| Vihtavuori N540 | <<locked>> | 88% | 65,543 psi | 90% | 2820 fps | 100% |
| Vihtavuori N550 | <<locked>> | 94% | 65,586 psi | 90% | 2937 fps | 100% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 59,524 psi | 82% | 2873 fps | 100% |
| Vihtavuori N560ᴾ | <<locked>> | 100% | 55,738 psi | 77% | 2892 fps | 97.3% |
| Winchester 6.5 StaBALL | <<locked>> | 94% | 62,134 psi | 86% | 2822 fps | 100% |
| Winchester 760 | <<locked>> | 90% | 61,467 psi | 85% | 2905 fps | 99.9% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 48,486 psi | 67% | 2861 fps | 100% |
| Winchester Supreme 780ᴾ | <<locked>> | 100% | 65,398 psi | 90% | 2910 fps | 99.5% |
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% | 59,785 psi | 82% | 2674 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 53,084 psi | 73% | 2618 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 59,683 psi | 82% | 2762 fps | 100% |
| Accurate 2700 | <<locked>> | 80% | 45,484 psi | 63% | 2539 fps | 97.5% |
| Accurate 3100 | <<locked>> | 84% | 32,445 psi | 45% | 2362 fps | 95.4% |
| Accurate 4064 | <<locked>> | 80% | 50,328 psi | 69% | 2628 fps | 100% |
| Accurate 4350 | <<locked>> | 80% | 38,522 psi | 53% | 2510 fps | 98.8% |
| ADI APS 450 | <<locked>> | 80% | 58,450 psi | 81% | 2100 fps | 100% |
| ADI AR 2206H | <<locked>> | 80% | 55,608 psi | 77% | 2745 fps | 100% |
| ADI AR 2208 | <<locked>> | 80% | 47,166 psi | 65% | 2604 fps | 100% |
| ADI AR 2209 | <<locked>> | 88% | 42,351 psi | 58% | 2599 fps | 95.7% |
| ADI AR 2213 | <<locked>> | 94% | 45,977 psi | 63% | 2697 fps | 95.3% |
| ADI Benchmark 8208 | <<locked>> | 80% | 57,667 psi | 80% | 2736 fps | 100% |
| Alliant AR-Comp | <<locked>> | 80% | 60,017 psi | 83% | 2700 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 52,504 psi | 72% | 2818 fps | 100% |
| Alliant Power Pro Varmint | <<locked>> | 86% | 39,769 psi | 55% | 2543 fps | 95% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 47,747 psi | 66% | 2627 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 80% | 51,111 psi | 70% | 2697 fps | 100% |
| Alliant Reloder-16 | 44.9 gr | 80% | 37,420 psi | 52% | 2519 fps | 98.9% |
| Alliant Reloder-17 | <<locked>> | 80% | 42,322 psi | 58% | 2636 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 88% | 42,090 psi | 58% | 2595 fps | 95.8% |
| Alliant Reloder-22 | <<locked>> | 90% | 39,639 psi | 55% | 2588 fps | 95.2% |
| Alliant Reloder-23 | <<locked>> | 80% | 27,514 psi | 38% | 2286 fps | 97% |
| Alliant Reloder-25 | <<locked>> | 88% | 31,067 psi | 43% | 2399 fps | 95.2% |
| Alliant Reloder-26 | <<locked>> | 80% | 29,211 psi | 40% | 2387 fps | 95.2% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 55,521 psi | 77% | 2765 fps | 100% |
| Bofors RP15 | <<locked>> | 94% | 41,597 psi | 57% | 2628 fps | 95.7% |
| Bofors RP3 | <<locked>> | 80% | 48,283 psi | 67% | 2642 fps | 100% |
| Bofors RP5 | <<locked>> | 90% | 39,639 psi | 55% | 2589 fps | 95.2% |
| Bofors RP7 | <<locked>> | 80% | 42,308 psi | 58% | 2520 fps | 96.9% |
| Hodgdon Benchmark | <<locked>> | 80% | 58,726 psi | 81% | 2713 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 80% | 57,914 psi | 80% | 2772 fps | 100% |
| Hodgdon H322 | <<locked>> | 80% | 61,250 psi | 84% | 2753 fps | 100% |
| Hodgdon H380 | <<locked>> | 80% | 48,602 psi | 67% | 2654 fps | 99.8% |
| Hodgdon H414 | <<locked>> | 80% | 43,758 psi | 60% | 2621 fps | 97.9% |
| Hodgdon H4350 | <<locked>> | 80% | 39,842 psi | 55% | 2503 fps | 95.4% |
| Hodgdon H4831 | <<locked>> | 98% | 48,530 psi | 67% | 2692 fps | 95.4% |
| Hodgdon H4831 SC | <<locked>> | 94% | 48,240 psi | 67% | 2687 fps | 95.3% |
| Hodgdon H4895 | <<locked>> | 80% | 56,275 psi | 78% | 2754 fps | 100% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 34,969 psi | 48% | 2416 fps | 99.3% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 49,995 psi | 69% | 2697 fps | 100% |
| Hodgdon Retumbo | <<locked>> | 96% | 39,088 psi | 54% | 2644 fps | 95.3% |
| Hodgdon Superformance | 51.1 gr | 80% | 39,276 psi | 54% | 2565 fps | 96.3% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,282 psi | 38% | 1521 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 49,879 psi | 69% | 2648 fps | 100% |
| IMR 3031 | <<locked>> | 80% | 52,228 psi | 72% | 2662 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 46,383 psi | 64% | 2582 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 80% | 45,455 psi | 63% | 2556 fps | 98.1% |
| IMR 4350 | <<locked>> | 80% | 37,927 psi | 52% | 2451 fps | 95.6% |
| IMR 4451 Enduron | <<locked>> | 80% | 43,700 psi | 60% | 2549 fps | 97.7% |
| IMR 4831 | <<locked>> | 80% | 33,489 psi | 46% | 2385 fps | 97.6% |
| IMR 4895 | <<locked>> | 80% | 52,402 psi | 72% | 2723 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 92% | 48,066 psi | 66% | 2648 fps | 95.5% |
| IMR 7828 SSC | <<locked>> | 94% | 47,123 psi | 65% | 2733 fps | 95.8% |
| IMR 8208 XBR | <<locked>> | 80% | 57,667 psi | 80% | 2738 fps | 100% |
| Lovex D073.6 | <<locked>> | 80% | 56,173 psi | 77% | 2719 fps | 100% |
| Lovex S060 | <<locked>> | 80% | 54,186 psi | 75% | 2668 fps | 100% |
| Lovex S062 | <<locked>> | 80% | 49,908 psi | 69% | 2631 fps | 100% |
| Lovex S065 | <<locked>> | 80% | 41,379 psi | 57% | 2504 fps | 98.4% |
| Lovex S070 | <<locked>> | 80% | 39,595 psi | 55% | 2486 fps | 97% |
| Lovex S071 | <<locked>> | 88% | 31,517 psi | 43% | 2340 fps | 95% |
| Norma 201 | <<locked>> | 80% | 54,360 psi | 75% | 2690 fps | 100% |
| Norma 202 | <<locked>> | 80% | 54,926 psi | 76% | 2682 fps | 100% |
| Norma 203B | <<locked>> | 80% | 50,488 psi | 70% | 2684 fps | 100% |
| Norma 204 | <<locked>> | 84% | 42,699 psi | 59% | 2586 fps | 95.7% |
| Norma MRP | <<locked>> | 86% | 36,303 psi | 50% | 2541 fps | 95.5% |
| Norma URP | <<locked>> | 80% | 38,247 psi | 53% | 2504 fps | 98.7% |
| Ramshot Big Game | <<locked>> | 80% | 50,836 psi | 70% | 2707 fps | 100% |
| Ramshot Grand | <<locked>> | 92% | 46,325 psi | 64% | 2729 fps | 95.9% |
| Ramshot Hunter | <<locked>> | 80% | 37,043 psi | 51% | 2491 fps | 96.9% |
| Ramshot Magnum | <<locked>> | 92% | 40,147 psi | 55% | 2588 fps | 96.1% |
| Ramshot TAC | <<locked>> | 80% | 57,711 psi | 80% | 2770 fps | 100% |
| Ramshot Wild Boar | <<locked>> | 80% | 57,827 psi | 80% | 2779 fps | 100% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,818 psi | 38% | 1559 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 48,399 psi | 67% | 2637 fps | 99.1% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 55,434 psi | 76% | 2812 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 44,933 psi | 62% | 2686 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 38,218 psi | 53% | 2527 fps | 98.5% |
| ReloadSwiss RS 70 | 49.1 gr | 80% | 37,014 psi | 51% | 2533 fps | 98% |
| ReloadSwiss RS 76 | <<locked>> | 94% | 35,897 psi | 50% | 2561 fps | 95.1% |
| Rottweil R 901 | <<locked>> | 80% | 58,276 psi | 80% | 2705 fps | 100% |
| Rottweil R 902 | <<locked>> | 80% | 51,692 psi | 71% | 2643 fps | 100% |
| Rottweil R 903 | <<locked>> | 80% | 45,513 psi | 63% | 2591 fps | 100% |
| Rottweil R 904 | <<locked>> | 90% | 46,818 psi | 65% | 2635 fps | 95.8% |
| Rottweil R 905 | <<locked>> | 88% | 41,176 psi | 57% | 2577 fps | 95.7% |
| Rottweil R 907 | <<locked>> | 80% | 42,308 psi | 58% | 2520 fps | 96.9% |
| Shooters World Long Rifle | <<locked>> | 80% | 41,379 psi | 57% | 2504 fps | 98.4% |
| Shooters World Match Rifle | <<locked>> | 80% | 56,173 psi | 77% | 2719 fps | 100% |
| Shooters World Precision | <<locked>> | 80% | 49,908 psi | 69% | 2631 fps | 100% |
| Shooters World SW4350 | <<locked>> | 80% | 39,595 psi | 55% | 2487 fps | 97% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 46,586 psi | 64% | 2643 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 56,594 psi | 78% | 2751 fps | 100% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 54,041 psi | 75% | 2718 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 54,781 psi | 76% | 2616 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 46,383 psi | 64% | 2491 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 40,466 psi | 56% | 2450 fps | 97.1% |
| SNPE Vectan Tubal 8000 | <<locked>> | 88% | 40,785 psi | 56% | 2572 fps | 95.6% |
| Somchem S335 | <<locked>> | 80% | 54,824 psi | 76% | 2619 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 56,420 psi | 78% | 2737 fps | 100% |
| Somchem S355 | <<locked>> | 80% | 45,730 psi | 63% | 2590 fps | 100% |
| Somchem S361 | <<locked>> | 90% | 47,950 psi | 66% | 2625 fps | 95.2% |
| Somchem S365 | <<locked>> | 80% | 34,606 psi | 48% | 2461 fps | 99.9% |
| Somchem S385 | <<locked>> | 84% | 36,651 psi | 51% | 2454 fps | 95.1% |
| Unknown powder | <<locked>> | 80% | 41,162 psi | 57% | 2557 fps | 98.8% |
| Vihtavuori N130 | <<locked>> | 80% | 59,959 psi | 83% | 2642 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 51,866 psi | 72% | 2556 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 51,895 psi | 72% | 2602 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 51,619 psi | 71% | 2614 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 39,059 psi | 54% | 2440 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 41,133 psi | 57% | 2529 fps | 99.2% |
| Vihtavuori N165 | <<locked>> | 92% | 39,755 psi | 55% | 2513 fps | 95.8% |
| Vihtavuori N530 | <<locked>> | 80% | 60,858 psi | 84% | 2787 fps | 100% |
| Vihtavuori N540 | <<locked>> | 80% | 51,242 psi | 71% | 2637 fps | 100% |
| Vihtavuori N550 | <<locked>> | 80% | 41,800 psi | 58% | 2572 fps | 99.2% |
| Vihtavuori N555 | <<locked>> | 80% | 30,400 psi | 42% | 2359 fps | 97.1% |
| Vihtavuori N560 | <<locked>> | 96% | 48,602 psi | 67% | 2779 fps | 95.8% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 38,638 psi | 53% | 2472 fps | 99.9% |
| Winchester 760 | <<locked>> | 80% | 43,758 psi | 60% | 2621 fps | 97.9% |
| Winchester StaBALL HD | <<locked>> | 80% | 24,294 psi | 34% | 2256 fps | 95.7% |
| Winchester Supreme 780 | <<locked>> | 88% | 42,047 psi | 58% | 2563 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 120 powders for .270 Win. Ackley Improved loaded with the .277 | 154gr | Reichenberg Mag Dr ckjagd. Alliant Reloder-26 delivers the highest muzzle velocity at 2,999 fps; across all powders the maximum-charge window runs from 1,705 fps to 2,999 fps. Accurate 3100 gives the best case fill at 100 %, and 120 of the 120 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (500 MPa), the top charges use 51–90 %, leaving at least 10 % headroom. The 154.0 gr projectile in 0.277" calls for a 1:10.5 twist; slower twists will usually not stabilise this weight. Accurate 3100, ADI AR 2209, ADI AR 2213 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-16 rank at the top here: for .270 Win. Ackley Improved with the .277 | 154gr | Reichenberg Mag Dr ckjagd 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.