Load Specifications
Bullet Manufacturer:Norma
Bullet Weight:130 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:1:13.0
Load data in caliber .270 Win. Ackley Improved with .277 | 130gr | Norma Semi Soft Point bullet and 120 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Alliant Reloder-17, ReloadSwiss RS 60 and ReloadSwiss RS 70.
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>> | 84% | 62,816 psi | 87% | 2956 fps | 100% |
| Accurate 2460 | <<locked>> | 82% | 65,412 psi | 90% | 3041 fps | 100% |
| Accurate 2495 | <<locked>> | 88% | 62,845 psi | 87% | 2989 fps | 100% |
| Accurate 2520 | <<locked>> | 84% | 64,469 psi | 89% | 3064 fps | 100% |
| Accurate 2700 | <<locked>> | 90% | 64,803 psi | 89% | 3071 fps | 99.1% |
| Accurate 3100ᴾ | <<locked>> | 100% | 50,125 psi | 69% | 2927 fps | 98.5% |
| Accurate 4064 | <<locked>> | 90% | 62,975 psi | 87% | 3045 fps | 100% |
| Accurate 4350 | <<locked>> | 98% | 64,426 psi | 89% | 3163 fps | 100% |
| Accurate High Countryᴾ | <<locked>> | 100% | 54,694 psi | 75% | 3123 fps | 96.2% |
| ADI APS 450 | <<locked>> | 86% | 64,353 psi | 89% | 2379 fps | 100% |
| ADI AR 2206H | <<locked>> | 86% | 62,192 psi | 86% | 3084 fps | 100% |
| ADI AR 2208 | <<locked>> | 92% | 63,005 psi | 87% | 3081 fps | 100% |
| ADI AR 2209ᴾ | <<locked>> | 100% | 57,435 psi | 79% | 3087 fps | 97.5% |
| ADI Benchmark 8208 | <<locked>> | 86% | 64,643 psi | 89% | 3077 fps | 100% |
| Alliant AR-Comp | <<locked>> | 84% | 62,656 psi | 86% | 2986 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 88% | 63,237 psi | 87% | 3222 fps | 100% |
| Alliant Power Pro Varmintᴾ | <<locked>> | 100% | 57,232 psi | 79% | 3081 fps | 97.6% |
| Alliant Power Pro Varmintᴾ | <<locked>> | 100% | 57,232 psi | 79% | 3081 fps | 97.6% |
| Alliant Reloder- TS 15.5 | <<locked>> | 92% | 64,136 psi | 88% | 3107 fps | 100% |
| Alliant Reloder-10x | <<locked>> | 82% | 65,586 psi | 90% | 3002 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 90% | 64,600 psi | 89% | 3133 fps | 100% |
| Alliant Reloder-16ᴾ | <<locked>> | 100% | 64,426 psi | 89% | 3212 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 94% | 62,439 psi | 86% | 3189 fps | 100% |
| Alliant Reloder-19ᴾ | <<locked>> | 100% | 56,376 psi | 78% | 3071 fps | 97.5% |
| Alliant Reloder-22ᴾ | <<locked>> | 100% | 49,763 psi | 69% | 2999 fps | 96.2% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 47,065 psi | 65% | 2946 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 41,220 psi | 57% | 2851 fps | 97.3% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 53,838 psi | 74% | 3143 fps | 99.9% |
| Baschieri & Pellagri 107 | <<locked>> | 86% | 62,453 psi | 86% | 3104 fps | 100% |
| Bofors RP3 | <<locked>> | 90% | 61,540 psi | 85% | 3074 fps | 100% |
| Bofors RP5ᴾ | <<locked>> | 100% | 49,763 psi | 69% | 2999 fps | 96.2% |
| Bofors RP7 | <<locked>> | 96% | 64,382 psi | 89% | 3107 fps | 99.2% |
| Hodgdon Benchmark | <<locked>> | 84% | 61,873 psi | 85% | 2999 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 86% | 65,006 psi | 90% | 3110 fps | 100% |
| Hodgdon CFE223 | <<locked>> | 82% | 63,628 psi | 88% | 3176 fps | 100% |
| Hodgdon H322 | <<locked>> | 82% | 65,340 psi | 90% | 3058 fps | 100% |
| Hodgdon H380 | <<locked>> | 90% | 61,801 psi | 85% | 3091 fps | 100% |
| Hodgdon H414 | <<locked>> | 96% | 62,555 psi | 86% | 3159 fps | 99.4% |
| Hodgdon H4350 | <<locked>> | 94% | 62,250 psi | 86% | 3114 fps | 98.5% |
| Hodgdon H4895 | <<locked>> | 86% | 62,874 psi | 87% | 3091 fps | 100% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 60,756 psi | 84% | 3074 fps | 100% |
| Hodgdon LEVERevolution | <<locked>> | 88% | 63,295 psi | 87% | 3130 fps | 100% |
| Hodgdon Superformance | <<locked>> | 96% | 63,962 psi | 88% | 3212 fps | 99.4% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,172 psi | 50% | 1864 fps | 100% |
| Hodgdon VARGET | <<locked>> | 88% | 64,020 psi | 88% | 3091 fps | 100% |
| IMR 3031 | <<locked>> | 86% | 63,425 psi | 87% | 3064 fps | 100% |
| IMR 4064 | <<locked>> | 90% | 62,743 psi | 87% | 3064 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 88% | 62,120 psi | 86% | 3051 fps | 99.3% |
| IMR 4198 | <<locked>> | 82% | 64,672 psi | 89% | 2953 fps | 100% |
| IMR 4350ᴾ | <<locked>> | 100% | 65,514 psi | 90% | 3140 fps | 99.3% |
| IMR 4451 Enduron | <<locked>> | 94% | 62,323 psi | 86% | 3081 fps | 99.3% |
| IMR 4831ᴾ | <<locked>> | 100% | 64,281 psi | 89% | 3146 fps | 100% |
| IMR 4895 | <<locked>> | 88% | 62,294 psi | 86% | 3110 fps | 100% |
| IMR 8208 XBR | <<locked>> | 86% | 64,643 psi | 89% | 3077 fps | 100% |
| Lovex D073.5 | <<locked>> | 82% | 65,398 psi | 90% | 3058 fps | 100% |
| Lovex D073.6 | <<locked>> | 86% | 62,758 psi | 87% | 3051 fps | 100% |
| Lovex S060 | <<locked>> | 88% | 64,339 psi | 89% | 3048 fps | 100% |
| Lovex S062 | <<locked>> | 90% | 62,729 psi | 87% | 3054 fps | 100% |
| Lovex S065 | <<locked>> | 96% | 62,120 psi | 86% | 3071 fps | 99.8% |
| Lovex S070 | <<locked>> | 98% | 63,556 psi | 88% | 3117 fps | 99.5% |
| Lovex S071ᴾ | <<locked>> | 100% | 41,510 psi | 57% | 2766 fps | 96.6% |
| Norma 201 | <<locked>> | 88% | 64,397 psi | 89% | 3071 fps | 100% |
| Norma 202 | <<locked>> | 88% | 65,282 psi | 90% | 3064 fps | 100% |
| Norma 203B | <<locked>> | 90% | 63,744 psi | 88% | 3117 fps | 100% |
| Norma 204 | <<locked>> | 98% | 62,917 psi | 87% | 3143 fps | 98.2% |
| Norma MRPᴾ | <<locked>> | 100% | 52,866 psi | 73% | 3091 fps | 98.3% |
| Norma URP | <<locked>> | 98% | 62,207 psi | 86% | 3136 fps | 100% |
| Ramshot Big Game | <<locked>> | 90% | 65,209 psi | 90% | 3150 fps | 100% |
| Ramshot Hunterᴾ | <<locked>> | 100% | 65,238 psi | 90% | 3199 fps | 99.9% |
| Ramshot TAC | <<locked>> | 86% | 65,122 psi | 90% | 3110 fps | 100% |
| Ramshot Wild Boar | <<locked>> | 86% | 65,311 psi | 90% | 3123 fps | 100% |
| Ramshot X-Terminator | <<locked>> | 84% | 65,601 psi | 90% | 3081 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 36,796 psi | 51% | 1909 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 82% | 63,686 psi | 88% | 3048 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 90% | 61,743 psi | 85% | 3071 fps | 99.6% |
| ReloadSwiss RS 52 | <<locked>> | 86% | 61,815 psi | 85% | 3153 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 92% | 62,163 psi | 86% | 3186 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 98% | 64,165 psi | 88% | 3182 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 98% | 62,787 psi | 87% | 3219 fps | 100% |
| Rottweil R 901 | <<locked>> | 86% | 65,079 psi | 90% | 3041 fps | 100% |
| Rottweil R 902 | <<locked>> | 90% | 64,977 psi | 90% | 3068 fps | 100% |
| Rottweil R 903 | <<locked>> | 94% | 65,514 psi | 90% | 3117 fps | 100% |
| Rottweil R 904ᴾ | <<locked>> | 100% | 58,972 psi | 81% | 3051 fps | 96.7% |
| Rottweil R 905ᴾ | <<locked>> | 100% | 55,376 psi | 76% | 3051 fps | 97.4% |
| Rottweil R 907 | <<locked>> | 96% | 64,382 psi | 89% | 3107 fps | 99.2% |
| Shooters World Long Rifle | <<locked>> | 96% | 62,120 psi | 86% | 3071 fps | 99.8% |
| Shooters World Match Rifle | <<locked>> | 86% | 62,758 psi | 87% | 3051 fps | 100% |
| Shooters World Precision | <<locked>> | 90% | 62,729 psi | 87% | 3054 fps | 100% |
| Shooters World SW4350 | <<locked>> | 98% | 63,556 psi | 88% | 3117 fps | 99.5% |
| SNPE Vectan SP 11 | <<locked>> | 92% | 63,251 psi | 87% | 3130 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 86% | 64,078 psi | 88% | 3094 fps | 100% |
| SNPE Vectan SP 9 | <<locked>> | 88% | 64,527 psi | 89% | 3107 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 88% | 65,485 psi | 90% | 2995 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 92% | 62,569 psi | 86% | 2946 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 96% | 62,555 psi | 86% | 3028 fps | 99.3% |
| SNPE Vectan Tubal 8000ᴾ | <<locked>> | 100% | 54,868 psi | 76% | 3045 fps | 97.3% |
| Somchem S321 | <<locked>> | 82% | 62,395 psi | 86% | 3058 fps | 100% |
| Somchem S335 | <<locked>> | 88% | 64,803 psi | 89% | 2986 fps | 100% |
| Somchem S341 | <<locked>> | 86% | 63,672 psi | 88% | 3074 fps | 100% |
| Somchem S355 | <<locked>> | 94% | 64,759 psi | 89% | 3110 fps | 100% |
| Somchem S361ᴾ | <<locked>> | 100% | 61,453 psi | 85% | 3048 fps | 96.3% |
| Somchem S365ᴾ | <<locked>> | 100% | 61,627 psi | 85% | 3140 fps | 100% |
| Somchem S385ᴾ | <<locked>> | 100% | 56,130 psi | 77% | 3028 fps | 98.2% |
| Vihtavuori N130 | <<locked>> | 84% | 64,614 psi | 89% | 2943 fps | 100% |
| Vihtavuori N133 | <<locked>> | 86% | 61,786 psi | 85% | 2923 fps | 100% |
| Vihtavuori N135 | <<locked>> | 90% | 65,282 psi | 90% | 3018 fps | 100% |
| Vihtavuori N140 | <<locked>> | 88% | 62,062 psi | 86% | 2992 fps | 100% |
| Vihtavuori N150 | <<locked>> | 94% | 62,932 psi | 87% | 3035 fps | 100% |
| Vihtavuori N160 | <<locked>> | 98% | 65,064 psi | 90% | 3136 fps | 100% |
| Vihtavuori N165ᴾ | <<locked>> | 100% | 48,486 psi | 67% | 2884 fps | 96.3% |
| Vihtavuori N530 | <<locked>> | 86% | 65,369 psi | 90% | 3077 fps | 100% |
| Vihtavuori N540 | <<locked>> | 90% | 63,904 psi | 88% | 3038 fps | 100% |
| Vihtavuori N550 | <<locked>> | 98% | 64,063 psi | 88% | 3143 fps | 100% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 52,547 psi | 72% | 3028 fps | 99.9% |
| Winchester 6.5 StaBALL | <<locked>> | 98% | 65,586 psi | 90% | 3104 fps | 100% |
| Winchester 748 | <<locked>> | 84% | 62,105 psi | 86% | 3074 fps | 100% |
| Winchester 760 | <<locked>> | 96% | 62,555 psi | 86% | 3159 fps | 99.4% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 42,279 psi | 58% | 2982 fps | 100% |
| Winchester StaBALL Match | <<locked>> | 88% | 64,846 psi | 89% | 3114 fps | 100% |
| Winchester Supreme 780ᴾ | <<locked>> | 100% | 52,924 psi | 73% | 2966 fps | 96.6% |
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% | 55,579 psi | 77% | 2864 fps | 100% |
| Accurate 2460 | <<locked>> | 80% | 61,438 psi | 85% | 2992 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 48,515 psi | 67% | 2795 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 56,434 psi | 78% | 2959 fps | 100% |
| Accurate 2700 | <<locked>> | 80% | 46,586 psi | 64% | 2776 fps | 96.1% |
| Accurate 3100 | <<locked>> | 92% | 38,072 psi | 53% | 2690 fps | 95.5% |
| Accurate 4064 | <<locked>> | 80% | 45,948 psi | 63% | 2795 fps | 100% |
| Accurate 4350 | <<locked>> | 80% | 34,447 psi | 48% | 2621 fps | 96.1% |
| Accurate High Country | <<locked>> | 98% | 50,865 psi | 70% | 3054 fps | 95.2% |
| ADI APS 450 | <<locked>> | 80% | 58,175 psi | 80% | 2293 fps | 100% |
| ADI AR 2206H | <<locked>> | 80% | 51,285 psi | 71% | 2917 fps | 100% |
| ADI AR 2208 | <<locked>> | 80% | 43,584 psi | 60% | 2759 fps | 99% |
| ADI AR 2209 | <<locked>> | 94% | 47,166 psi | 65% | 2900 fps | 95.1% |
| ADI Benchmark 8208 | <<locked>> | 80% | 53,330 psi | 74% | 2917 fps | 100% |
| Alliant AR-Comp | <<locked>> | 80% | 55,129 psi | 76% | 2894 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 47,747 psi | 66% | 2972 fps | 99.6% |
| Alliant Power Pro Varmint | <<locked>> | 94% | 47,108 psi | 65% | 2900 fps | 95.3% |
| Alliant Power Pro Varmint | <<locked>> | 94% | 47,108 psi | 65% | 2900 fps | 95.3% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 44,005 psi | 61% | 2789 fps | 99.8% |
| Alliant Reloder-10x | <<locked>> | 80% | 61,540 psi | 85% | 2953 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 80% | 46,847 psi | 65% | 2851 fps | 99.5% |
| Alliant Reloder-16 | <<locked>> | 80% | 34,113 psi | 47% | 2638 fps | 96.2% |
| Alliant Reloder-17 | 50.5 gr | 80% | 38,406 psi | 53% | 2769 fps | 99% |
| Alliant Reloder-19 | <<locked>> | 94% | 46,499 psi | 64% | 2890 fps | 95.1% |
| Alliant Reloder-22 | <<locked>> | 98% | 46,586 psi | 64% | 2940 fps | 95.3% |
| Alliant Reloder-23 | <<locked>> | 84% | 28,297 psi | 39% | 2490 fps | 95.1% |
| Alliant Reloder-25 | <<locked>> | 96% | 36,332 psi | 50% | 2726 fps | 95.3% |
| Alliant Reloder-26 | <<locked>> | 88% | 34,722 psi | 48% | 2730 fps | 95.6% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 51,097 psi | 70% | 2927 fps | 99.7% |
| Bofors RP3 | <<locked>> | 80% | 44,121 psi | 61% | 2799 fps | 99.8% |
| Bofors RP5 | <<locked>> | 98% | 46,586 psi | 64% | 2940 fps | 95.3% |
| Bofors RP7 | <<locked>> | 84% | 44,251 psi | 61% | 2766 fps | 95.7% |
| Hodgdon Benchmark | <<locked>> | 80% | 54,737 psi | 75% | 2897 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 80% | 53,287 psi | 73% | 2946 fps | 100% |
| Hodgdon CFE223 | <<locked>> | 80% | 59,350 psi | 82% | 3114 fps | 100% |
| Hodgdon H322 | <<locked>> | 80% | 61,250 psi | 84% | 3005 fps | 100% |
| Hodgdon H380 | <<locked>> | 80% | 44,541 psi | 61% | 2802 fps | 98.4% |
| Hodgdon H414 | <<locked>> | 84% | 41,974 psi | 58% | 2799 fps | 95.7% |
| Hodgdon H4350 | <<locked>> | 84% | 45,194 psi | 62% | 2822 fps | 95.1% |
| Hodgdon H4895 | <<locked>> | 80% | 51,822 psi | 71% | 2923 fps | 100% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 31,618 psi | 44% | 2533 fps | 97% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 48,472 psi | 67% | 2907 fps | 100% |
| Hodgdon Superformance | <<locked>> | 86% | 44,266 psi | 61% | 2874 fps | 95.9% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,905 psi | 37% | 1663 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 49,705 psi | 69% | 2874 fps | 100% |
| IMR 3031 | <<locked>> | 80% | 52,272 psi | 72% | 2910 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 45,832 psi | 63% | 2795 fps | 99.4% |
| IMR 4166 Enduron | <<locked>> | 80% | 48,196 psi | 66% | 2822 fps | 97.2% |
| IMR 4198 | <<locked>> | 80% | 60,974 psi | 84% | 2907 fps | 100% |
| IMR 4350 | <<locked>> | 86% | 42,206 psi | 58% | 2743 fps | 95.1% |
| IMR 4451 Enduron | <<locked>> | 80% | 40,509 psi | 56% | 2687 fps | 95% |
| IMR 4831 | <<locked>> | 80% | 33,315 psi | 46% | 2579 fps | 95.8% |
| IMR 4895 | <<locked>> | 80% | 48,022 psi | 66% | 2884 fps | 99.8% |
| IMR 8208 XBR | <<locked>> | 80% | 53,330 psi | 74% | 2917 fps | 100% |
| Lovex D073.5 | <<locked>> | 80% | 61,424 psi | 85% | 3009 fps | 100% |
| Lovex D073.6 | <<locked>> | 80% | 51,430 psi | 71% | 2894 fps | 100% |
| Lovex S060 | <<locked>> | 80% | 50,488 psi | 70% | 2841 fps | 99.9% |
| Lovex S062 | <<locked>> | 80% | 45,977 psi | 63% | 2795 fps | 100% |
| Lovex S065 | <<locked>> | 80% | 38,000 psi | 52% | 2635 fps | 95.9% |
| Lovex S070 | <<locked>> | 84% | 41,089 psi | 57% | 2723 fps | 95.6% |
| Lovex S071 | <<locked>> | 98% | 39,001 psi | 54% | 2710 fps | 95.9% |
| Norma 201 | <<locked>> | 80% | 50,270 psi | 69% | 2861 fps | 100% |
| Norma 202 | <<locked>> | 80% | 50,952 psi | 70% | 2867 fps | 100% |
| Norma 203B | <<locked>> | 80% | 46,224 psi | 64% | 2841 fps | 99.7% |
| Norma 204 | <<locked>> | 90% | 47,761 psi | 66% | 2894 fps | 95.2% |
| Norma MRP | <<locked>> | 94% | 42,888 psi | 59% | 2894 fps | 95.8% |
| Norma URP | <<locked>> | 80% | 34,534 psi | 48% | 2625 fps | 96% |
| Ramshot Big Game | <<locked>> | 80% | 46,470 psi | 64% | 2861 fps | 99.6% |
| Ramshot Hunter | <<locked>> | 84% | 38,363 psi | 53% | 2726 fps | 95.5% |
| Ramshot TAC | <<locked>> | 80% | 53,476 psi | 74% | 2936 fps | 99.2% |
| Ramshot Wild Boar | <<locked>> | 80% | 53,388 psi | 74% | 2953 fps | 100% |
| Ramshot X-Terminator | <<locked>> | 80% | 57,551 psi | 79% | 2969 fps | 100% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,325 psi | 38% | 1703 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 59,785 psi | 82% | 2995 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 44,744 psi | 62% | 2782 fps | 97% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 50,401 psi | 70% | 2972 fps | 99.8% |
| ReloadSwiss RS 60 | 50.5 gr | 80% | 40,814 psi | 56% | 2835 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 34,156 psi | 47% | 2638 fps | 95.6% |
| ReloadSwiss RS 70 | 52.6 gr | 82% | 36,114 psi | 50% | 2707 fps | 95.7% |
| Rottweil R 901 | <<locked>> | 80% | 54,302 psi | 75% | 2894 fps | 100% |
| Rottweil R 902 | <<locked>> | 80% | 47,834 psi | 66% | 2812 fps | 100% |
| Rottweil R 903 | <<locked>> | 80% | 41,408 psi | 57% | 2736 fps | 99.5% |
| Rottweil R 904 | <<locked>> | 96% | 52,069 psi | 72% | 2936 fps | 95.2% |
| Rottweil R 905 | <<locked>> | 94% | 45,295 psi | 62% | 2871 fps | 95% |
| Rottweil R 907 | <<locked>> | 84% | 44,251 psi | 61% | 2766 fps | 95.7% |
| Shooters World Long Rifle | <<locked>> | 80% | 38,000 psi | 52% | 2635 fps | 95.9% |
| Shooters World Match Rifle | <<locked>> | 80% | 51,430 psi | 71% | 2894 fps | 100% |
| Shooters World Precision | <<locked>> | 80% | 45,977 psi | 63% | 2795 fps | 100% |
| Shooters World SW4350 | <<locked>> | 84% | 41,089 psi | 57% | 2723 fps | 95.6% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 42,438 psi | 59% | 2789 fps | 99.2% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 52,373 psi | 72% | 2917 fps | 99.4% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 49,835 psi | 69% | 2884 fps | 99.9% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 51,097 psi | 70% | 2799 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 43,033 psi | 59% | 2661 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 82% | 39,769 psi | 55% | 2635 fps | 95% |
| SNPE Vectan Tubal 8000 | <<locked>> | 96% | 47,979 psi | 66% | 2923 fps | 95.7% |
| Somchem S321 | <<locked>> | 80% | 58,305 psi | 80% | 3002 fps | 100% |
| Somchem S335 | <<locked>> | 80% | 50,966 psi | 70% | 2799 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 51,953 psi | 72% | 2904 fps | 100% |
| Somchem S355 | <<locked>> | 80% | 41,916 psi | 58% | 2740 fps | 99.4% |
| Somchem S361 | <<locked>> | 98% | 57,377 psi | 79% | 2986 fps | 95.5% |
| Somchem S365 | <<locked>> | 80% | 31,140 psi | 43% | 2575 fps | 98.2% |
| Somchem S385 | <<locked>> | 92% | 43,265 psi | 60% | 2795 fps | 95.4% |
| Vihtavuori N130 | <<locked>> | 80% | 57,290 psi | 79% | 2851 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 51,619 psi | 71% | 2785 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 47,848 psi | 66% | 2782 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 48,182 psi | 66% | 2792 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 39,929 psi | 55% | 2667 fps | 99.8% |
| Vihtavuori N160 | <<locked>> | 80% | 35,853 psi | 49% | 2625 fps | 96.4% |
| Vihtavuori N165 | <<locked>> | 98% | 45,397 psi | 63% | 2825 fps | 95.5% |
| Vihtavuori N530 | <<locked>> | 80% | 53,911 psi | 74% | 2917 fps | 100% |
| Vihtavuori N540 | <<locked>> | 80% | 46,615 psi | 64% | 2785 fps | 100% |
| Vihtavuori N550 | <<locked>> | 80% | 35,505 psi | 49% | 2625 fps | 96.1% |
| Vihtavuori N555 | <<locked>> | 84% | 30,951 psi | 43% | 2572 fps | 95.4% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 35,317 psi | 49% | 2598 fps | 98.5% |
| Winchester 748 | <<locked>> | 80% | 54,360 psi | 75% | 2966 fps | 100% |
| Winchester 760 | <<locked>> | 84% | 41,974 psi | 58% | 2799 fps | 95.7% |
| Winchester StaBALL HD | <<locked>> | 88% | 28,427 psi | 39% | 2575 fps | 95.9% |
| Winchester StaBALL Match | <<locked>> | 80% | 49,879 psi | 69% | 2894 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 98% | 49,095 psi | 68% | 2897 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 | 130gr | Norma Semi Soft Point. Alliant Power Pro 2000-MR delivers the highest muzzle velocity at 3,222 fps; across all powders the maximum-charge window runs from 1,864 fps to 3,222 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 50–90 %, leaving at least 10 % headroom. The 130.0 gr projectile in 0.277" calls for a 1:13.0 twist; slower twists will usually not stabilise this weight. Accurate 3100, Accurate High Country, 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. Alliant Reloder-17, ReloadSwiss RS 60, ReloadSwiss RS 70 rank at the top here: for .270 Win. Ackley Improved with the .277 | 130gr | Norma Semi Soft Point 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.