Load Specifications
Bullet Manufacturer:Alaska Bullet Works
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:1:12.0
Load data in caliber .270 Win. Ackley Improved with .277 | 130gr | Alaska Bullet Works Kodiak SP SPBC bullet and 115 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Alliant Power Pro 2000-MR, Hodgdon Superformance 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% | 65,572 psi | 90% | 2986 fps | 100% |
| Accurate 2460 | <<locked>> | 82% | 64,484 psi | 89% | 3025 fps | 100% |
| Accurate 2495 | <<locked>> | 88% | 61,844 psi | 85% | 2976 fps | 100% |
| Accurate 2520 | <<locked>> | 84% | 63,556 psi | 88% | 3048 fps | 100% |
| Accurate 2700 | <<locked>> | 90% | 64,121 psi | 88% | 3054 fps | 98.9% |
| Accurate 3100ᴾ | <<locked>> | 100% | 49,182 psi | 68% | 2904 fps | 98.3% |
| Accurate 4064 | <<locked>> | 90% | 62,018 psi | 86% | 3028 fps | 100% |
| Accurate 4350 | <<locked>> | 98% | 63,266 psi | 87% | 3143 fps | 100% |
| ADI APS 450 | <<locked>> | 86% | 64,353 psi | 89% | 2372 fps | 100% |
| ADI AR 2206H | <<locked>> | 88% | 64,977 psi | 90% | 3114 fps | 100% |
| ADI AR 2208 | <<locked>> | 92% | 62,192 psi | 86% | 3064 fps | 100% |
| ADI AR 2209ᴾ | <<locked>> | 100% | 56,231 psi | 78% | 3061 fps | 97.2% |
| ADI Benchmark 8208 | <<locked>> | 86% | 63,773 psi | 88% | 3061 fps | 100% |
| Alliant AR-Comp | <<locked>> | 84% | 61,902 psi | 85% | 2976 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 88% | 62,033 psi | 86% | 3202 fps | 100% |
| Alliant Reloder- TS 15.5 | <<locked>> | 92% | 62,932 psi | 87% | 3084 fps | 100% |
| Alliant Reloder-10x | <<locked>> | 82% | 64,484 psi | 89% | 2986 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 90% | 63,411 psi | 87% | 3114 fps | 100% |
| Alliant Reloder-16ᴾ | <<locked>> | 100% | 63,309 psi | 87% | 3196 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 94% | 61,308 psi | 85% | 3173 fps | 100% |
| Alliant Reloder-19ᴾ | <<locked>> | 100% | 55,492 psi | 77% | 3051 fps | 97.2% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 46,166 psi | 64% | 2930 fps | 99.9% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 40,335 psi | 56% | 2825 fps | 96.8% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 52,605 psi | 73% | 3117 fps | 99.8% |
| Baschieri & Pellagri 107 | <<locked>> | 86% | 61,409 psi | 85% | 3084 fps | 100% |
| Bofors RP3 | <<locked>> | 92% | 64,455 psi | 89% | 3110 fps | 100% |
| Bofors RP7 | <<locked>> | 96% | 63,382 psi | 87% | 3087 fps | 99% |
| Hodgdon Benchmark | <<locked>> | 86% | 64,948 psi | 90% | 3035 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 86% | 64,208 psi | 89% | 3097 fps | 100% |
| Hodgdon CFE223 | <<locked>> | 82% | 62,671 psi | 86% | 3156 fps | 100% |
| Hodgdon H322 | <<locked>> | 82% | 64,310 psi | 89% | 3038 fps | 100% |
| Hodgdon H380 | <<locked>> | 92% | 65,093 psi | 90% | 3130 fps | 100% |
| Hodgdon H414 | <<locked>> | 96% | 61,525 psi | 85% | 3140 fps | 99.3% |
| Hodgdon H4350 | <<locked>> | 96% | 65,253 psi | 90% | 3153 fps | 98.8% |
| Hodgdon H4895 | <<locked>> | 86% | 61,989 psi | 85% | 3074 fps | 100% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 59,640 psi | 82% | 3054 fps | 100% |
| Hodgdon LEVERevolution | <<locked>> | 88% | 62,410 psi | 86% | 3114 fps | 100% |
| Hodgdon Superformance | <<locked>> | 96% | 62,642 psi | 86% | 3189 fps | 99.2% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,129 psi | 50% | 1857 fps | 100% |
| Hodgdon VARGET | <<locked>> | 88% | 63,164 psi | 87% | 3074 fps | 100% |
| IMR 3031 | <<locked>> | 86% | 62,381 psi | 86% | 3045 fps | 100% |
| IMR 4064 | <<locked>> | 90% | 61,917 psi | 85% | 3051 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 90% | 65,398 psi | 90% | 3094 fps | 99.5% |
| IMR 4198 | <<locked>> | 82% | 63,889 psi | 88% | 2936 fps | 100% |
| IMR 4350ᴾ | <<locked>> | 100% | 64,208 psi | 89% | 3114 fps | 99.1% |
| IMR 4451 Enduron | <<locked>> | 96% | 65,267 psi | 90% | 3117 fps | 99.4% |
| IMR 4831ᴾ | <<locked>> | 100% | 63,251 psi | 87% | 3127 fps | 100% |
| IMR 4895 | <<locked>> | 90% | 65,050 psi | 90% | 3143 fps | 100% |
| IMR 8208 XBR | <<locked>> | 86% | 63,773 psi | 88% | 3061 fps | 100% |
| Lovex D073.5 | <<locked>> | 82% | 64,542 psi | 89% | 3041 fps | 100% |
| Lovex D073.6 | <<locked>> | 86% | 61,844 psi | 85% | 3035 fps | 100% |
| Lovex S060 | <<locked>> | 88% | 63,541 psi | 88% | 3035 fps | 100% |
| Lovex S062 | <<locked>> | 92% | 65,572 psi | 90% | 3087 fps | 100% |
| Lovex S065 | <<locked>> | 98% | 65,064 psi | 90% | 3107 fps | 99.9% |
| Lovex S070 | <<locked>> | 98% | 62,540 psi | 86% | 3097 fps | 99.4% |
| Lovex S071ᴾ | <<locked>> | 100% | 40,582 psi | 56% | 2743 fps | 96.3% |
| Norma 201 | <<locked>> | 88% | 63,512 psi | 88% | 3054 fps | 100% |
| Norma 202 | <<locked>> | 88% | 64,382 psi | 89% | 3048 fps | 100% |
| Norma 203B | <<locked>> | 90% | 62,598 psi | 86% | 3097 fps | 100% |
| Norma 204 | <<locked>> | 98% | 61,931 psi | 85% | 3123 fps | 98% |
| Norma MRPᴾ | <<locked>> | 100% | 51,721 psi | 71% | 3064 fps | 97.9% |
| Norma URPᴾ | <<locked>> | 100% | 65,282 psi | 90% | 3173 fps | 100% |
| Ramshot Big Game | <<locked>> | 90% | 64,107 psi | 88% | 3130 fps | 100% |
| Ramshot Hunterᴾ | <<locked>> | 100% | 64,266 psi | 89% | 3179 fps | 99.8% |
| Ramshot TAC | <<locked>> | 86% | 64,426 psi | 89% | 3097 fps | 99.9% |
| Ramshot Wild Boar | <<locked>> | 86% | 64,527 psi | 89% | 3110 fps | 100% |
| Ramshot X-Terminator | <<locked>> | 84% | 64,469 psi | 89% | 3064 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 36,767 psi | 51% | 1903 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 82% | 62,729 psi | 87% | 3031 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 92% | 65,006 psi | 90% | 3110 fps | 99.7% |
| ReloadSwiss RS 52 | <<locked>> | 88% | 65,064 psi | 90% | 3192 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 94% | 65,253 psi | 90% | 3222 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 98% | 63,150 psi | 87% | 3166 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 98% | 61,830 psi | 85% | 3199 fps | 100% |
| Rottweil R 901 | <<locked>> | 86% | 64,107 psi | 88% | 3025 fps | 100% |
| Rottweil R 902 | <<locked>> | 90% | 64,034 psi | 88% | 3051 fps | 100% |
| Rottweil R 903 | <<locked>> | 94% | 64,295 psi | 89% | 3100 fps | 100% |
| Rottweil R 904ᴾ | <<locked>> | 100% | 58,030 psi | 80% | 3031 fps | 96.4% |
| Rottweil R 905ᴾ | <<locked>> | 100% | 54,418 psi | 75% | 3031 fps | 97.1% |
| Rottweil R 907 | <<locked>> | 96% | 63,382 psi | 87% | 3087 fps | 99% |
| Shooters World Long Rifle | <<locked>> | 98% | 65,064 psi | 90% | 3107 fps | 99.9% |
| Shooters World Match Rifle | <<locked>> | 86% | 61,844 psi | 85% | 3035 fps | 100% |
| Shooters World Precision | <<locked>> | 92% | 65,572 psi | 90% | 3087 fps | 100% |
| Shooters World SW4350 | <<locked>> | 98% | 62,540 psi | 86% | 3097 fps | 99.4% |
| SNPE Vectan SP 11 | <<locked>> | 92% | 62,163 psi | 86% | 3114 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 86% | 63,309 psi | 87% | 3074 fps | 100% |
| SNPE Vectan SP 9 | <<locked>> | 88% | 63,382 psi | 87% | 3084 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 88% | 64,571 psi | 89% | 2979 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 94% | 65,485 psi | 90% | 2976 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 96% | 61,569 psi | 85% | 3009 fps | 99.1% |
| SNPE Vectan Tubal 8000ᴾ | <<locked>> | 100% | 53,911 psi | 74% | 3025 fps | 97% |
| Somchem S321 | <<locked>> | 82% | 61,525 psi | 85% | 3041 fps | 100% |
| Somchem S335 | <<locked>> | 88% | 63,962 psi | 88% | 2972 fps | 100% |
| Somchem S341 | <<locked>> | 86% | 62,569 psi | 86% | 3054 fps | 100% |
| Somchem S355 | <<locked>> | 94% | 63,991 psi | 88% | 3094 fps | 100% |
| Somchem S361ᴾ | <<locked>> | 100% | 60,365 psi | 83% | 3025 fps | 95.9% |
| Somchem S365ᴾ | <<locked>> | 100% | 60,104 psi | 83% | 3120 fps | 100% |
| Somchem S385ᴾ | <<locked>> | 100% | 55,230 psi | 76% | 3009 fps | 98% |
| Vihtavuori N130 | <<locked>> | 84% | 63,976 psi | 88% | 2930 fps | 100% |
| Vihtavuori N133 | <<locked>> | 88% | 64,846 psi | 89% | 2956 fps | 100% |
| Vihtavuori N135 | <<locked>> | 90% | 64,266 psi | 89% | 3002 fps | 100% |
| Vihtavuori N140 | <<locked>> | 90% | 65,238 psi | 90% | 3025 fps | 100% |
| Vihtavuori N150 | <<locked>> | 94% | 61,815 psi | 85% | 3015 fps | 100% |
| Vihtavuori N160 | <<locked>> | 98% | 64,020 psi | 88% | 3117 fps | 100% |
| Vihtavuori N165ᴾ | <<locked>> | 100% | 47,674 psi | 66% | 2864 fps | 96% |
| Vihtavuori N530 | <<locked>> | 86% | 64,498 psi | 89% | 3061 fps | 100% |
| Vihtavuori N540 | <<locked>> | 90% | 63,121 psi | 87% | 3025 fps | 100% |
| Vihtavuori N550 | <<locked>> | 98% | 62,714 psi | 86% | 3120 fps | 100% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 51,503 psi | 71% | 3009 fps | 99.9% |
| Winchester 6.5 StaBALL | <<locked>> | 98% | 64,339 psi | 89% | 3084 fps | 100% |
| Winchester 748 | <<locked>> | 86% | 65,238 psi | 90% | 3110 fps | 100% |
| Winchester 760 | <<locked>> | 96% | 61,525 psi | 85% | 3140 fps | 99.3% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 41,539 psi | 57% | 2963 fps | 100% |
| Winchester StaBALL Match | <<locked>> | 88% | 64,063 psi | 88% | 3097 fps | 100% |
| Winchester Supreme 780ᴾ | <<locked>> | 100% | 51,721 psi | 71% | 2940 fps | 96.2% |
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% | 54,563 psi | 75% | 2844 fps | 100% |
| Accurate 2460 | <<locked>> | 80% | 60,495 psi | 83% | 2976 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 47,834 psi | 66% | 2779 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 55,492 psi | 77% | 2940 fps | 100% |
| Accurate 2700 | <<locked>> | 80% | 46,122 psi | 64% | 2762 fps | 95.8% |
| Accurate 3100 | <<locked>> | 92% | 37,188 psi | 51% | 2667 fps | 95.1% |
| Accurate 4064 | <<locked>> | 80% | 45,252 psi | 62% | 2779 fps | 100% |
| Accurate 4350 | <<locked>> | 80% | 33,852 psi | 47% | 2605 fps | 95.8% |
| ADI APS 450 | <<locked>> | 80% | 58,088 psi | 80% | 2283 fps | 100% |
| ADI AR 2206H | <<locked>> | 80% | 50,676 psi | 70% | 2900 fps | 99.9% |
| ADI AR 2208 | <<locked>> | 80% | 43,018 psi | 59% | 2743 fps | 98.8% |
| ADI AR 2209 | <<locked>> | 96% | 49,443 psi | 68% | 2943 fps | 95.6% |
| ADI Benchmark 8208 | <<locked>> | 80% | 52,750 psi | 73% | 2904 fps | 100% |
| Alliant AR-Comp | <<locked>> | 80% | 54,331 psi | 75% | 2877 fps | 100% |
| Alliant Power Pro 2000-MR | 50.5 gr | 80% | 46,934 psi | 65% | 2953 fps | 99.5% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 43,149 psi | 60% | 2769 fps | 99.7% |
| Alliant Reloder-10x | <<locked>> | 80% | 60,771 psi | 84% | 2940 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 80% | 46,238 psi | 64% | 2838 fps | 99.4% |
| Alliant Reloder-16 | <<locked>> | 80% | 33,605 psi | 46% | 2618 fps | 95.9% |
| Alliant Reloder-17 | 49.7 gr | 80% | 37,681 psi | 52% | 2749 fps | 98.8% |
| Alliant Reloder-19 | <<locked>> | 96% | 48,718 psi | 67% | 2930 fps | 95.6% |
| Alliant Reloder-23 | <<locked>> | 86% | 29,617 psi | 41% | 2530 fps | 95.8% |
| Alliant Reloder-25 | <<locked>> | 98% | 37,985 psi | 52% | 2766 fps | 95.9% |
| Alliant Reloder-26 | <<locked>> | 88% | 34,200 psi | 47% | 2713 fps | 95.3% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 50,314 psi | 69% | 2910 fps | 99.6% |
| Bofors RP3 | <<locked>> | 80% | 43,279 psi | 60% | 2776 fps | 99.7% |
| Bofors RP7 | <<locked>> | 84% | 43,758 psi | 60% | 2753 fps | 95.4% |
| Hodgdon Benchmark | <<locked>> | 80% | 54,157 psi | 75% | 2884 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 80% | 52,431 psi | 72% | 2930 fps | 100% |
| Hodgdon CFE223 | <<locked>> | 80% | 58,421 psi | 81% | 3094 fps | 100% |
| Hodgdon H322 | <<locked>> | 80% | 60,582 psi | 84% | 2992 fps | 100% |
| Hodgdon H380 | <<locked>> | 80% | 43,772 psi | 60% | 2782 fps | 98.1% |
| Hodgdon H414 | <<locked>> | 84% | 41,249 psi | 57% | 2779 fps | 95.3% |
| Hodgdon H4350 | <<locked>> | 86% | 47,398 psi | 65% | 2861 fps | 95.6% |
| Hodgdon H4895 | <<locked>> | 80% | 51,198 psi | 71% | 2910 fps | 100% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 31,111 psi | 43% | 2516 fps | 96.7% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 47,630 psi | 66% | 2887 fps | 100% |
| Hodgdon Superformance | 56.5 gr | 86% | 43,439 psi | 60% | 2851 fps | 95.5% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,963 psi | 37% | 1660 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 49,153 psi | 68% | 2861 fps | 99.9% |
| IMR 3031 | <<locked>> | 80% | 51,532 psi | 71% | 2897 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 45,223 psi | 62% | 2779 fps | 99.3% |
| IMR 4166 Enduron | <<locked>> | 80% | 47,659 psi | 66% | 2805 fps | 97% |
| IMR 4198 | <<locked>> | 80% | 60,191 psi | 83% | 2890 fps | 100% |
| IMR 4350 | <<locked>> | 88% | 44,266 psi | 61% | 2782 fps | 95.6% |
| IMR 4451 Enduron | <<locked>> | 82% | 42,424 psi | 59% | 2726 fps | 95.5% |
| IMR 4831 | <<locked>> | 80% | 32,779 psi | 45% | 2562 fps | 95.4% |
| IMR 4895 | <<locked>> | 80% | 47,398 psi | 65% | 2867 fps | 99.7% |
| IMR 8208 XBR | <<locked>> | 80% | 52,750 psi | 73% | 2904 fps | 100% |
| Lovex D073.5 | <<locked>> | 80% | 60,524 psi | 83% | 2992 fps | 100% |
| Lovex D073.6 | <<locked>> | 80% | 50,502 psi | 70% | 2874 fps | 100% |
| Lovex S060 | <<locked>> | 80% | 49,922 psi | 69% | 2828 fps | 99.9% |
| Lovex S062 | <<locked>> | 80% | 45,353 psi | 63% | 2782 fps | 99.9% |
| Lovex S065 | <<locked>> | 80% | 37,478 psi | 52% | 2621 fps | 95.6% |
| Lovex S070 | <<locked>> | 84% | 40,393 psi | 56% | 2703 fps | 95.3% |
| Lovex S071 | <<locked>> | 98% | 38,058 psi | 52% | 2687 fps | 95.4% |
| Norma 201 | <<locked>> | 80% | 49,661 psi | 68% | 2848 fps | 100% |
| Norma 202 | <<locked>> | 80% | 50,038 psi | 69% | 2848 fps | 100% |
| Norma 203B | <<locked>> | 80% | 45,600 psi | 63% | 2825 fps | 99.6% |
| Norma 204 | <<locked>> | 92% | 50,401 psi | 70% | 2936 fps | 95.8% |
| Norma MRP | <<locked>> | 94% | 42,061 psi | 58% | 2871 fps | 95.4% |
| Norma URP | <<locked>> | 80% | 33,997 psi | 47% | 2608 fps | 95.7% |
| Ramshot Big Game | <<locked>> | 80% | 45,658 psi | 63% | 2844 fps | 99.5% |
| Ramshot Hunter | <<locked>> | 84% | 37,710 psi | 52% | 2707 fps | 95.1% |
| Ramshot TAC | <<locked>> | 80% | 52,736 psi | 73% | 2920 fps | 99.1% |
| Ramshot Wild Boar | <<locked>> | 80% | 52,881 psi | 73% | 2940 fps | 100% |
| Ramshot X-Terminator | <<locked>> | 80% | 56,753 psi | 78% | 2956 fps | 100% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,369 psi | 38% | 1699 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 58,871 psi | 81% | 2979 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 43,976 psi | 61% | 2762 fps | 96.8% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 49,748 psi | 69% | 2959 fps | 99.7% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 40,074 psi | 55% | 2815 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 33,634 psi | 46% | 2621 fps | 95.3% |
| ReloadSwiss RS 70 | <<locked>> | 82% | 35,534 psi | 49% | 2687 fps | 95.3% |
| Rottweil R 901 | <<locked>> | 80% | 53,563 psi | 74% | 2877 fps | 100% |
| Rottweil R 902 | <<locked>> | 80% | 47,239 psi | 65% | 2799 fps | 100% |
| Rottweil R 903 | <<locked>> | 80% | 40,770 psi | 56% | 2720 fps | 99.3% |
| Rottweil R 904 | <<locked>> | 98% | 54,650 psi | 75% | 2976 fps | 95.7% |
| Rottweil R 905 | <<locked>> | 96% | 47,761 psi | 66% | 2913 fps | 95.6% |
| Rottweil R 907 | <<locked>> | 84% | 43,758 psi | 60% | 2753 fps | 95.4% |
| Shooters World Long Rifle | <<locked>> | 80% | 37,478 psi | 52% | 2621 fps | 95.6% |
| Shooters World Match Rifle | <<locked>> | 80% | 50,502 psi | 70% | 2874 fps | 100% |
| Shooters World Precision | <<locked>> | 80% | 45,353 psi | 63% | 2782 fps | 99.9% |
| Shooters World SW4350 | <<locked>> | 84% | 40,393 psi | 56% | 2703 fps | 95.3% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 41,887 psi | 58% | 2772 fps | 99% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 51,634 psi | 71% | 2900 fps | 99.3% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 49,284 psi | 68% | 2871 fps | 99.8% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 50,473 psi | 70% | 2785 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 42,453 psi | 59% | 2648 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 84% | 41,771 psi | 58% | 2674 fps | 95.5% |
| SNPE Vectan Tubal 8000 | <<locked>> | 96% | 47,311 psi | 65% | 2907 fps | 95.4% |
| Somchem S321 | <<locked>> | 80% | 57,479 psi | 79% | 2986 fps | 100% |
| Somchem S335 | <<locked>> | 80% | 50,343 psi | 69% | 2785 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 51,169 psi | 71% | 2887 fps | 99.9% |
| Somchem S355 | <<locked>> | 80% | 41,336 psi | 57% | 2723 fps | 99.3% |
| Somchem S361 | <<locked>> | 98% | 56,608 psi | 78% | 2969 fps | 95.1% |
| Somchem S365 | <<locked>> | 80% | 30,429 psi | 42% | 2556 fps | 97.9% |
| Somchem S385 | <<locked>> | 92% | 42,409 psi | 58% | 2776 fps | 95% |
| Vihtavuori N130 | <<locked>> | 80% | 56,608 psi | 78% | 2838 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 50,952 psi | 70% | 2772 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 47,137 psi | 65% | 2769 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 47,558 psi | 66% | 2779 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 39,378 psi | 54% | 2651 fps | 99.7% |
| Vihtavuori N160 | <<locked>> | 80% | 35,346 psi | 49% | 2608 fps | 96.2% |
| Vihtavuori N165 | <<locked>> | 98% | 44,585 psi | 61% | 2805 fps | 95.1% |
| Vihtavuori N530 | <<locked>> | 80% | 53,011 psi | 73% | 2900 fps | 100% |
| Vihtavuori N540 | <<locked>> | 80% | 45,803 psi | 63% | 2769 fps | 100% |
| Vihtavuori N550 | <<locked>> | 80% | 34,795 psi | 48% | 2608 fps | 95.7% |
| Vihtavuori N555 | <<locked>> | 86% | 32,416 psi | 45% | 2608 fps | 95.9% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 34,737 psi | 48% | 2582 fps | 98.2% |
| Winchester 748 | <<locked>> | 80% | 53,461 psi | 74% | 2949 fps | 100% |
| Winchester 760 | <<locked>> | 84% | 41,249 psi | 57% | 2779 fps | 95.3% |
| Winchester StaBALL HD | <<locked>> | 88% | 27,804 psi | 38% | 2546 fps | 95.2% |
| Winchester StaBALL Match | <<locked>> | 80% | 49,066 psi | 68% | 2874 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 98% | 48,269 psi | 67% | 2881 fps | 95.4% |
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 115 powders for .270 Win. Ackley Improved loaded with the .277 | 130gr | Alaska Bullet Works Kodiak SP SPBC. ReloadSwiss RS 60 delivers the highest muzzle velocity at 3,222 fps; across all powders the maximum-charge window runs from 1,857 fps to 3,222 fps. Accurate 3100 gives the best case fill at 100 %, and 115 of the 115 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 1:12.0 twist; slower twists will usually not stabilise this weight. Accurate 3100, ADI AR 2209, Alliant Reloder-16 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 Power Pro 2000-MR, Hodgdon Superformance, Alliant Reloder-17 rank at the top here: for .270 Win. Ackley Improved with the .277 | 130gr | Alaska Bullet Works Kodiak SP SPBC 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.