Load Specifications
Bullet Manufacturer:Nosler
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:1:11.5
Load data in caliber .270 Win. Ackley Improved with .277 | 130gr | Nosler Partition bullet and 116 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% | 65,470 psi | 90% | 2986 fps | 100% |
| Accurate 2460 | <<locked>> | 82% | 64,411 psi | 89% | 3025 fps | 100% |
| Accurate 2495 | <<locked>> | 88% | 61,685 psi | 85% | 2972 fps | 100% |
| Accurate 2520 | <<locked>> | 84% | 63,483 psi | 88% | 3048 fps | 100% |
| Accurate 2700 | <<locked>> | 90% | 63,715 psi | 88% | 3048 fps | 98.9% |
| Accurate 3100ᴾ | <<locked>> | 100% | 48,791 psi | 67% | 2897 fps | 98.2% |
| Accurate 4064 | <<locked>> | 90% | 61,946 psi | 85% | 3028 fps | 100% |
| Accurate 4350 | <<locked>> | 98% | 62,801 psi | 87% | 3136 fps | 100% |
| ADI APS 450 | <<locked>> | 86% | 64,179 psi | 89% | 2369 fps | 100% |
| ADI AR 2206H | <<locked>> | 88% | 64,832 psi | 89% | 3114 fps | 100% |
| ADI AR 2208 | <<locked>> | 92% | 62,134 psi | 86% | 3061 fps | 100% |
| ADI AR 2209ᴾ | <<locked>> | 100% | 56,130 psi | 77% | 3058 fps | 97.1% |
| ADI Benchmark 8208 | <<locked>> | 86% | 63,701 psi | 88% | 3058 fps | 100% |
| Alliant AR-Comp | <<locked>> | 84% | 61,786 psi | 85% | 2972 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 88% | 61,960 psi | 85% | 3199 fps | 100% |
| Alliant Power Pro Varmintᴾ | <<locked>> | 100% | 55,985 psi | 77% | 3054 fps | 97.2% |
| Alliant Reloder- TS 15.5 | <<locked>> | 92% | 62,845 psi | 87% | 3084 fps | 100% |
| Alliant Reloder-10x | <<locked>> | 82% | 64,368 psi | 89% | 2982 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 90% | 63,309 psi | 87% | 3110 fps | 100% |
| Alliant Reloder-16ᴾ | <<locked>> | 100% | 63,193 psi | 87% | 3192 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 96% | 65,543 psi | 90% | 3228 fps | 100% |
| Alliant Reloder-19ᴾ | <<locked>> | 100% | 55,143 psi | 76% | 3045 fps | 97.1% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 45,847 psi | 63% | 2923 fps | 99.9% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 40,263 psi | 56% | 2822 fps | 96.8% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 52,562 psi | 72% | 3117 fps | 99.8% |
| Baschieri & Pellagri 107 | <<locked>> | 86% | 61,351 psi | 85% | 3081 fps | 100% |
| Bofors RP3 | <<locked>> | 92% | 64,353 psi | 89% | 3107 fps | 100% |
| Bofors RP7 | <<locked>> | 96% | 63,353 psi | 87% | 3087 fps | 99% |
| Hodgdon Benchmark | <<locked>> | 86% | 64,803 psi | 89% | 3031 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 86% | 64,078 psi | 88% | 3094 fps | 100% |
| Hodgdon CFE223 | <<locked>> | 82% | 62,584 psi | 86% | 3153 fps | 100% |
| Hodgdon H322 | <<locked>> | 82% | 64,208 psi | 89% | 3038 fps | 100% |
| Hodgdon H380 | <<locked>> | 92% | 65,050 psi | 90% | 3127 fps | 100% |
| Hodgdon H414 | <<locked>> | 98% | 65,615 psi | 90% | 3196 fps | 99.6% |
| Hodgdon H4350 | <<locked>> | 96% | 65,209 psi | 90% | 3153 fps | 98.8% |
| Hodgdon H4895 | <<locked>> | 86% | 61,902 psi | 85% | 3074 fps | 100% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 59,596 psi | 82% | 3054 fps | 100% |
| Hodgdon LEVERevolution | <<locked>> | 88% | 62,352 psi | 86% | 3114 fps | 100% |
| Hodgdon Superformance | <<locked>> | 96% | 62,250 psi | 86% | 3182 fps | 99.2% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,984 psi | 50% | 1854 fps | 100% |
| Hodgdon VARGET | <<locked>> | 88% | 63,077 psi | 87% | 3074 fps | 100% |
| IMR 3031 | <<locked>> | 86% | 62,279 psi | 86% | 3045 fps | 100% |
| IMR 4064 | <<locked>> | 92% | 65,572 psi | 90% | 3097 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 90% | 64,992 psi | 90% | 3084 fps | 99.4% |
| IMR 4198 | <<locked>> | 82% | 63,759 psi | 88% | 2936 fps | 100% |
| IMR 4350ᴾ | <<locked>> | 100% | 64,179 psi | 89% | 3114 fps | 99.1% |
| IMR 4451 Enduron | <<locked>> | 96% | 65,238 psi | 90% | 3114 fps | 99.4% |
| IMR 4831ᴾ | <<locked>> | 100% | 62,801 psi | 87% | 3120 fps | 100% |
| IMR 4895 | <<locked>> | 90% | 64,977 psi | 90% | 3140 fps | 100% |
| IMR 8208 XBR | <<locked>> | 86% | 63,701 psi | 88% | 3058 fps | 100% |
| Lovex D073.5 | <<locked>> | 82% | 64,440 psi | 89% | 3041 fps | 100% |
| Lovex D073.6 | <<locked>> | 86% | 61,772 psi | 85% | 3035 fps | 100% |
| Lovex S060 | <<locked>> | 88% | 63,440 psi | 87% | 3031 fps | 100% |
| Lovex S062 | <<locked>> | 92% | 65,499 psi | 90% | 3084 fps | 100% |
| Lovex S065 | <<locked>> | 98% | 65,021 psi | 90% | 3107 fps | 99.9% |
| Lovex S070 | <<locked>> | 98% | 62,511 psi | 86% | 3094 fps | 99.4% |
| Lovex S071ᴾ | <<locked>> | 100% | 40,524 psi | 56% | 2740 fps | 96.2% |
| Norma 201 | <<locked>> | 88% | 63,425 psi | 87% | 3051 fps | 100% |
| Norma 202 | <<locked>> | 88% | 64,310 psi | 89% | 3048 fps | 100% |
| Norma 203B | <<locked>> | 90% | 62,540 psi | 86% | 3097 fps | 100% |
| Norma 204 | <<locked>> | 98% | 61,511 psi | 85% | 3117 fps | 97.9% |
| Norma MRPᴾ | <<locked>> | 100% | 51,634 psi | 71% | 3064 fps | 97.9% |
| Norma URPᴾ | <<locked>> | 100% | 65,209 psi | 90% | 3173 fps | 100% |
| Ramshot Big Game | <<locked>> | 90% | 64,063 psi | 88% | 3130 fps | 100% |
| Ramshot Hunterᴾ | <<locked>> | 100% | 64,223 psi | 89% | 3179 fps | 99.8% |
| Ramshot TAC | <<locked>> | 86% | 64,034 psi | 88% | 3091 fps | 99.9% |
| Ramshot Wild Boar | <<locked>> | 86% | 64,092 psi | 88% | 3104 fps | 100% |
| Ramshot X-Terminator | <<locked>> | 84% | 64,411 psi | 89% | 3061 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 36,622 psi | 51% | 1896 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 82% | 62,642 psi | 86% | 3028 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 92% | 64,948 psi | 90% | 3110 fps | 99.7% |
| ReloadSwiss RS 52 | <<locked>> | 88% | 64,919 psi | 90% | 3189 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 94% | 65,166 psi | 90% | 3222 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 98% | 62,758 psi | 87% | 3163 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 98% | 61,453 psi | 85% | 3192 fps | 100% |
| Rottweil R 901 | <<locked>> | 86% | 64,005 psi | 88% | 3025 fps | 100% |
| Rottweil R 902 | <<locked>> | 90% | 63,947 psi | 88% | 3048 fps | 100% |
| Rottweil R 903 | <<locked>> | 94% | 64,194 psi | 89% | 3100 fps | 100% |
| Rottweil R 904ᴾ | <<locked>> | 100% | 58,015 psi | 80% | 3028 fps | 96.3% |
| Rottweil R 905ᴾ | <<locked>> | 100% | 54,360 psi | 75% | 3028 fps | 97.1% |
| Rottweil R 907 | <<locked>> | 96% | 63,353 psi | 87% | 3087 fps | 99% |
| Shooters World Long Rifle | <<locked>> | 98% | 65,021 psi | 90% | 3107 fps | 99.9% |
| Shooters World Match Rifle | <<locked>> | 86% | 61,772 psi | 85% | 3035 fps | 100% |
| Shooters World Precision | <<locked>> | 92% | 65,499 psi | 90% | 3084 fps | 100% |
| Shooters World SW4350 | <<locked>> | 98% | 62,511 psi | 86% | 3094 fps | 99.4% |
| SNPE Vectan SP 11 | <<locked>> | 92% | 62,091 psi | 86% | 3110 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 86% | 63,222 psi | 87% | 3074 fps | 100% |
| SNPE Vectan SP 9 | <<locked>> | 88% | 63,324 psi | 87% | 3084 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 88% | 64,484 psi | 89% | 2976 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 94% | 65,412 psi | 90% | 2972 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 96% | 61,540 psi | 85% | 3005 fps | 99.1% |
| SNPE Vectan Tubal 8000ᴾ | <<locked>> | 100% | 53,853 psi | 74% | 3022 fps | 97% |
| Somchem S321 | <<locked>> | 82% | 61,467 psi | 85% | 3041 fps | 100% |
| Somchem S335 | <<locked>> | 88% | 63,889 psi | 88% | 2969 fps | 100% |
| Somchem S341 | <<locked>> | 86% | 62,511 psi | 86% | 3054 fps | 100% |
| Somchem S355 | <<locked>> | 94% | 63,860 psi | 88% | 3094 fps | 100% |
| Somchem S361ᴾ | <<locked>> | 100% | 60,307 psi | 83% | 3025 fps | 95.9% |
| Somchem S365ᴾ | <<locked>> | 100% | 59,988 psi | 83% | 3117 fps | 100% |
| Somchem S385ᴾ | <<locked>> | 100% | 55,143 psi | 76% | 3005 fps | 98% |
| Vihtavuori N130 | <<locked>> | 84% | 63,875 psi | 88% | 2930 fps | 100% |
| Vihtavuori N133 | <<locked>> | 88% | 64,759 psi | 89% | 2953 fps | 100% |
| Vihtavuori N135 | <<locked>> | 90% | 64,179 psi | 89% | 3002 fps | 100% |
| Vihtavuori N140 | <<locked>> | 90% | 64,803 psi | 89% | 3018 fps | 100% |
| Vihtavuori N150 | <<locked>> | 96% | 65,572 psi | 90% | 3061 fps | 100% |
| Vihtavuori N160 | <<locked>> | 98% | 63,614 psi | 88% | 3110 fps | 100% |
| Vihtavuori N165ᴾ | <<locked>> | 100% | 47,355 psi | 65% | 2858 fps | 95.9% |
| Vihtavuori N530 | <<locked>> | 86% | 64,426 psi | 89% | 3058 fps | 100% |
| Vihtavuori N540 | <<locked>> | 90% | 63,077 psi | 87% | 3022 fps | 100% |
| Vihtavuori N550 | <<locked>> | 98% | 62,685 psi | 86% | 3120 fps | 100% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 51,430 psi | 71% | 3005 fps | 99.9% |
| Winchester 6.5 StaBALL | <<locked>> | 98% | 64,295 psi | 89% | 3084 fps | 100% |
| Winchester 748 | <<locked>> | 86% | 65,166 psi | 90% | 3110 fps | 100% |
| Winchester 760 | <<locked>> | 98% | 65,615 psi | 90% | 3196 fps | 99.6% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 41,495 psi | 57% | 2963 fps | 100% |
| Winchester StaBALL Match | <<locked>> | 88% | 64,020 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% | 54,447 psi | 75% | 2841 fps | 100% |
| Accurate 2460 | <<locked>> | 80% | 60,408 psi | 83% | 2976 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 47,718 psi | 66% | 2779 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 55,405 psi | 76% | 2940 fps | 100% |
| Accurate 2700 | <<locked>> | 80% | 46,050 psi | 64% | 2759 fps | 95.8% |
| Accurate 3100 | <<locked>> | 92% | 37,144 psi | 51% | 2664 fps | 95.1% |
| Accurate 4064 | <<locked>> | 80% | 45,150 psi | 62% | 2776 fps | 100% |
| Accurate 4350 | <<locked>> | 80% | 33,765 psi | 47% | 2605 fps | 95.8% |
| ADI APS 450 | <<locked>> | 80% | 58,247 psi | 80% | 2283 fps | 100% |
| ADI AR 2206H | <<locked>> | 80% | 50,575 psi | 70% | 2897 fps | 99.9% |
| ADI AR 2208 | <<locked>> | 80% | 42,931 psi | 59% | 2740 fps | 98.8% |
| ADI AR 2209 | <<locked>> | 96% | 49,385 psi | 68% | 2940 fps | 95.6% |
| ADI Benchmark 8208 | <<locked>> | 80% | 52,663 psi | 73% | 2900 fps | 100% |
| Alliant AR-Comp | <<locked>> | 80% | 54,201 psi | 75% | 2877 fps | 100% |
| Alliant Power Pro 2000-MR | 50.4 gr | 80% | 46,862 psi | 65% | 2949 fps | 99.4% |
| Alliant Power Pro Varmint | <<locked>> | 96% | 49,284 psi | 68% | 2936 fps | 95.7% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 43,062 psi | 59% | 2766 fps | 99.7% |
| Alliant Reloder-10x | <<locked>> | 80% | 60,640 psi | 84% | 2936 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 80% | 46,151 psi | 64% | 2835 fps | 99.4% |
| Alliant Reloder-16 | <<locked>> | 80% | 33,533 psi | 46% | 2618 fps | 95.8% |
| Alliant Reloder-17 | 49.6 gr | 80% | 37,608 psi | 52% | 2749 fps | 98.8% |
| Alliant Reloder-19 | <<locked>> | 96% | 48,617 psi | 67% | 2927 fps | 95.6% |
| Alliant Reloder-23 | <<locked>> | 86% | 29,385 psi | 41% | 2523 fps | 95.6% |
| Alliant Reloder-25 | <<locked>> | 98% | 37,768 psi | 52% | 2759 fps | 95.8% |
| Alliant Reloder-26 | <<locked>> | 88% | 33,939 psi | 47% | 2707 fps | 95.1% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 50,183 psi | 69% | 2907 fps | 99.5% |
| Bofors RP3 | <<locked>> | 80% | 43,192 psi | 60% | 2772 fps | 99.7% |
| Bofors RP7 | <<locked>> | 84% | 43,685 psi | 60% | 2749 fps | 95.4% |
| Hodgdon Benchmark | <<locked>> | 80% | 54,070 psi | 75% | 2881 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 80% | 52,359 psi | 72% | 2927 fps | 100% |
| Hodgdon CFE223 | <<locked>> | 80% | 58,334 psi | 80% | 3094 fps | 100% |
| Hodgdon H322 | <<locked>> | 80% | 60,437 psi | 83% | 2989 fps | 100% |
| Hodgdon H380 | <<locked>> | 80% | 43,685 psi | 60% | 2779 fps | 98.1% |
| Hodgdon H414 | <<locked>> | 84% | 41,176 psi | 57% | 2776 fps | 95.3% |
| Hodgdon H4350 | <<locked>> | 86% | 47,326 psi | 65% | 2858 fps | 95.6% |
| Hodgdon H4895 | <<locked>> | 80% | 51,097 psi | 70% | 2910 fps | 100% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 31,038 psi | 43% | 2513 fps | 96.6% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 47,529 psi | 66% | 2884 fps | 100% |
| Hodgdon Superformance | 56.4 gr | 86% | 43,381 psi | 60% | 2851 fps | 95.5% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,803 psi | 37% | 1657 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 49,052 psi | 68% | 2861 fps | 99.9% |
| IMR 3031 | <<locked>> | 80% | 51,416 psi | 71% | 2894 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 45,136 psi | 62% | 2776 fps | 99.3% |
| IMR 4166 Enduron | <<locked>> | 80% | 47,587 psi | 66% | 2805 fps | 97% |
| IMR 4198 | <<locked>> | 80% | 60,060 psi | 83% | 2890 fps | 100% |
| IMR 4350 | <<locked>> | 88% | 44,208 psi | 61% | 2782 fps | 95.6% |
| IMR 4451 Enduron | <<locked>> | 82% | 42,351 psi | 58% | 2723 fps | 95.5% |
| IMR 4831 | <<locked>> | 80% | 32,692 psi | 45% | 2559 fps | 95.4% |
| IMR 4895 | <<locked>> | 80% | 47,311 psi | 65% | 2864 fps | 99.7% |
| IMR 8208 XBR | <<locked>> | 80% | 52,663 psi | 73% | 2900 fps | 100% |
| Lovex D073.5 | <<locked>> | 80% | 60,437 psi | 83% | 2989 fps | 100% |
| Lovex D073.6 | <<locked>> | 80% | 50,401 psi | 70% | 2874 fps | 100% |
| Lovex S060 | <<locked>> | 80% | 49,821 psi | 69% | 2825 fps | 99.9% |
| Lovex S062 | <<locked>> | 80% | 45,266 psi | 62% | 2779 fps | 99.9% |
| Lovex S065 | <<locked>> | 80% | 37,391 psi | 52% | 2618 fps | 95.5% |
| Lovex S070 | <<locked>> | 84% | 40,292 psi | 56% | 2700 fps | 95.2% |
| Lovex S071 | <<locked>> | 98% | 38,014 psi | 52% | 2684 fps | 95.4% |
| Norma 201 | <<locked>> | 80% | 49,559 psi | 68% | 2844 fps | 100% |
| Norma 202 | <<locked>> | 80% | 49,937 psi | 69% | 2844 fps | 100% |
| Norma 203B | <<locked>> | 80% | 45,498 psi | 63% | 2822 fps | 99.6% |
| Norma 204 | <<locked>> | 92% | 50,299 psi | 69% | 2936 fps | 95.7% |
| Norma MRP | <<locked>> | 94% | 42,032 psi | 58% | 2867 fps | 95.3% |
| Norma URP | <<locked>> | 80% | 33,924 psi | 47% | 2605 fps | 95.6% |
| Ramshot Big Game | <<locked>> | 80% | 45,585 psi | 63% | 2841 fps | 99.5% |
| Ramshot Hunter | <<locked>> | 84% | 37,652 psi | 52% | 2703 fps | 95.1% |
| Ramshot TAC | <<locked>> | 80% | 52,678 psi | 73% | 2917 fps | 99.1% |
| Ramshot Wild Boar | <<locked>> | 80% | 52,504 psi | 72% | 2933 fps | 100% |
| Ramshot X-Terminator | <<locked>> | 80% | 56,681 psi | 78% | 2953 fps | 100% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,224 psi | 38% | 1696 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 58,784 psi | 81% | 2979 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 43,903 psi | 61% | 2762 fps | 96.7% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 49,385 psi | 68% | 2953 fps | 99.7% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 40,001 psi | 55% | 2815 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 33,562 psi | 46% | 2621 fps | 95.2% |
| ReloadSwiss RS 70 | <<locked>> | 82% | 35,491 psi | 49% | 2687 fps | 95.3% |
| Rottweil R 901 | <<locked>> | 80% | 53,505 psi | 74% | 2877 fps | 100% |
| Rottweil R 902 | <<locked>> | 80% | 47,137 psi | 65% | 2795 fps | 100% |
| Rottweil R 903 | <<locked>> | 80% | 40,683 psi | 56% | 2720 fps | 99.3% |
| Rottweil R 904 | <<locked>> | 98% | 54,288 psi | 75% | 2969 fps | 95.6% |
| Rottweil R 905 | <<locked>> | 96% | 47,413 psi | 65% | 2904 fps | 95.5% |
| Rottweil R 907 | <<locked>> | 84% | 43,685 psi | 60% | 2749 fps | 95.4% |
| Shooters World Long Rifle | <<locked>> | 80% | 37,391 psi | 52% | 2618 fps | 95.5% |
| Shooters World Match Rifle | <<locked>> | 80% | 50,401 psi | 70% | 2874 fps | 100% |
| Shooters World Precision | <<locked>> | 80% | 45,266 psi | 62% | 2779 fps | 99.9% |
| Shooters World SW4350 | <<locked>> | 84% | 40,292 psi | 56% | 2700 fps | 95.2% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 41,582 psi | 57% | 2766 fps | 99% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 51,503 psi | 71% | 2897 fps | 99.3% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 48,936 psi | 67% | 2864 fps | 99.8% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 50,357 psi | 69% | 2782 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 42,351 psi | 58% | 2644 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 84% | 41,698 psi | 57% | 2671 fps | 95.5% |
| SNPE Vectan Tubal 8000 | <<locked>> | 96% | 46,963 psi | 65% | 2900 fps | 95.3% |
| Somchem S321 | <<locked>> | 80% | 57,392 psi | 79% | 2982 fps | 100% |
| Somchem S335 | <<locked>> | 80% | 50,256 psi | 69% | 2782 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 51,097 psi | 70% | 2887 fps | 99.9% |
| Somchem S355 | <<locked>> | 80% | 41,249 psi | 57% | 2723 fps | 99.3% |
| Somchem S361 | <<locked>> | 98% | 56,289 psi | 78% | 2963 fps | 95.1% |
| Somchem S365 | <<locked>> | 80% | 30,356 psi | 42% | 2552 fps | 97.8% |
| Somchem S385 | <<locked>> | 94% | 45,194 psi | 62% | 2831 fps | 95.8% |
| Vihtavuori N130 | <<locked>> | 80% | 56,507 psi | 78% | 2835 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 50,850 psi | 70% | 2769 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 47,021 psi | 65% | 2766 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 47,471 psi | 65% | 2779 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 39,291 psi | 54% | 2651 fps | 99.7% |
| Vihtavuori N160 | <<locked>> | 80% | 35,259 psi | 49% | 2605 fps | 96.1% |
| Vihtavuori N165 | <<locked>> | 98% | 44,266 psi | 61% | 2799 fps | 95% |
| Vihtavuori N530 | <<locked>> | 80% | 52,924 psi | 73% | 2897 fps | 100% |
| Vihtavuori N540 | <<locked>> | 80% | 45,716 psi | 63% | 2766 fps | 100% |
| Vihtavuori N550 | <<locked>> | 80% | 34,708 psi | 48% | 2605 fps | 95.7% |
| Vihtavuori N555 | <<locked>> | 86% | 32,343 psi | 45% | 2605 fps | 95.9% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 34,693 psi | 48% | 2579 fps | 98.2% |
| Winchester 748 | <<locked>> | 80% | 53,359 psi | 74% | 2946 fps | 100% |
| Winchester 760 | <<locked>> | 84% | 41,176 psi | 57% | 2776 fps | 95.3% |
| Winchester StaBALL HD | <<locked>> | 88% | 27,775 psi | 38% | 2546 fps | 95.2% |
| Winchester StaBALL Match | <<locked>> | 80% | 48,994 psi | 68% | 2874 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 98% | 48,254 psi | 67% | 2877 fps | 95.3% |
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 116 powders for .270 Win. Ackley Improved loaded with the .277 | 130gr | Nosler Partition. Alliant Reloder-17 delivers the highest muzzle velocity at 3,228 fps; across all powders the maximum-charge window runs from 1,854 fps to 3,228 fps. Accurate 3100 gives the best case fill at 100 %, and 116 of the 116 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 1:11.5 twist; slower twists will usually not stabilise this weight. Accurate 3100, ADI AR 2209, Alliant Power Pro Varmint 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 | Nosler Partition 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.