Load Specifications
Bullet Manufacturer:Rhino Bullets
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:1:10.0
Load data in caliber .270 Win. Ackley Improved with .277 | 130gr | Rhino Penetrator bullet and 118 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are ReloadSwiss RS 60, Alliant Power Pro 2000-MR and Hodgdon Superformance.
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% | 64,107 psi | 88% | 2959 fps | 100% |
| Accurate 2460 | <<locked>> | 82% | 62,816 psi | 87% | 2995 fps | 100% |
| Accurate 2495 | <<locked>> | 90% | 63,889 psi | 88% | 2992 fps | 100% |
| Accurate 2520 | <<locked>> | 84% | 61,583 psi | 85% | 3015 fps | 100% |
| Accurate 2700 | <<locked>> | 90% | 62,265 psi | 86% | 3015 fps | 98.6% |
| Accurate 3100ᴾ | <<locked>> | 100% | 47,137 psi | 65% | 2861 fps | 97.7% |
| Accurate 4064 | <<locked>> | 92% | 63,730 psi | 88% | 3045 fps | 100% |
| Accurate 4350ᴾ | <<locked>> | 100% | 65,296 psi | 90% | 3159 fps | 100% |
| Accurate LT-30 | <<locked>> | 82% | 64,861 psi | 89% | 2940 fps | 100% |
| Accurate LT-32 | <<locked>> | 82% | 65,383 psi | 90% | 2972 fps | 100% |
| ADI APS 450 | <<locked>> | 86% | 64,252 psi | 89% | 2352 fps | 100% |
| ADI AR 2206H | <<locked>> | 88% | 63,425 psi | 87% | 3084 fps | 100% |
| ADI AR 2208 | <<locked>> | 94% | 64,208 psi | 89% | 3081 fps | 100% |
| ADI AR 2209ᴾ | <<locked>> | 100% | 54,592 psi | 75% | 3022 fps | 96.6% |
| ADI Benchmark 8208 | <<locked>> | 86% | 61,844 psi | 85% | 3025 fps | 100% |
| Alliant AR-Comp | <<locked>> | 86% | 63,831 psi | 88% | 2989 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 82% | 64,571 psi | 89% | 3146 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 90% | 64,498 psi | 89% | 3225 fps | 100% |
| Alliant Power Pro Varmintᴾ | <<locked>> | 100% | 54,331 psi | 75% | 3015 fps | 96.6% |
| Alliant Power Pro Varmintᴾ | <<locked>> | 100% | 54,331 psi | 75% | 3015 fps | 96.6% |
| Alliant Reloder- TS 15.5 | <<locked>> | 94% | 64,875 psi | 89% | 3104 fps | 100% |
| Alliant Reloder-10x | <<locked>> | 82% | 63,208 psi | 87% | 2963 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 90% | 61,554 psi | 85% | 3077 fps | 100% |
| Alliant Reloder-16ᴾ | <<locked>> | 100% | 61,279 psi | 85% | 3156 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 96% | 63,527 psi | 88% | 3196 fps | 100% |
| Alliant Reloder-19ᴾ | <<locked>> | 100% | 53,519 psi | 74% | 3005 fps | 96.5% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 44,237 psi | 61% | 2884 fps | 99.7% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 50,401 psi | 70% | 3074 fps | 99.5% |
| Baschieri & Pellagri 106 | <<locked>> | 82% | 64,774 psi | 89% | 2933 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 88% | 63,701 psi | 88% | 3107 fps | 100% |
| Bofors RP3 | <<locked>> | 92% | 62,584 psi | 86% | 3077 fps | 100% |
| Bofors RP7 | <<locked>> | 96% | 61,844 psi | 85% | 3051 fps | 98.7% |
| Hodgdon Benchmark | <<locked>> | 86% | 63,382 psi | 87% | 3002 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 86% | 62,395 psi | 86% | 3064 fps | 100% |
| Hodgdon CFE223 | <<locked>> | 84% | 64,905 psi | 90% | 3179 fps | 100% |
| Hodgdon H322 | <<locked>> | 82% | 62,830 psi | 87% | 3015 fps | 100% |
| Hodgdon H335 | <<locked>> | 82% | 64,353 psi | 89% | 3045 fps | 100% |
| Hodgdon H380 | <<locked>> | 92% | 63,077 psi | 87% | 3091 fps | 100% |
| Hodgdon H414 | <<locked>> | 98% | 63,425 psi | 87% | 3156 fps | 99.3% |
| Hodgdon H4350 | <<locked>> | 96% | 63,382 psi | 87% | 3117 fps | 98.4% |
| Hodgdon H4895 | <<locked>> | 88% | 64,121 psi | 88% | 3094 fps | 100% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 57,638 psi | 79% | 3022 fps | 100% |
| Hodgdon LEVERevolution | <<locked>> | 90% | 64,397 psi | 89% | 3130 fps | 100% |
| Hodgdon Superformance | <<locked>> | 98% | 65,050 psi | 90% | 3209 fps | 99.3% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,998 psi | 50% | 1844 fps | 100% |
| Hodgdon VARGET | <<locked>> | 90% | 65,485 psi | 90% | 3094 fps | 100% |
| IMR 3031 | <<locked>> | 88% | 64,759 psi | 89% | 3068 fps | 100% |
| IMR 4064 | <<locked>> | 92% | 63,817 psi | 88% | 3064 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 90% | 63,440 psi | 87% | 3051 fps | 99.2% |
| IMR 4198 | <<locked>> | 82% | 62,497 psi | 86% | 2910 fps | 100% |
| IMR 4350ᴾ | <<locked>> | 100% | 62,497 psi | 86% | 3081 fps | 98.8% |
| IMR 4451 Enduron | <<locked>> | 96% | 63,440 psi | 87% | 3081 fps | 99.2% |
| IMR 4831ᴾ | <<locked>> | 100% | 60,901 psi | 84% | 3087 fps | 100% |
| IMR 4895 | <<locked>> | 90% | 63,164 psi | 87% | 3107 fps | 100% |
| IMR 8208 XBR | <<locked>> | 86% | 61,844 psi | 85% | 3025 fps | 100% |
| Lovex D073.5 | <<locked>> | 82% | 62,961 psi | 87% | 3015 fps | 100% |
| Lovex D073.6 | <<locked>> | 88% | 64,063 psi | 88% | 3054 fps | 100% |
| Lovex S060 | <<locked>> | 88% | 62,047 psi | 86% | 3002 fps | 100% |
| Lovex S062 | <<locked>> | 92% | 63,701 psi | 88% | 3054 fps | 100% |
| Lovex S065 | <<locked>> | 98% | 63,193 psi | 87% | 3071 fps | 99.8% |
| Lovex S070ᴾ | <<locked>> | 100% | 64,861 psi | 89% | 3117 fps | 99.5% |
| Norma 201 | <<locked>> | 88% | 61,902 psi | 85% | 3022 fps | 100% |
| Norma 202 | <<locked>> | 88% | 62,758 psi | 87% | 3018 fps | 100% |
| Norma 203B | <<locked>> | 92% | 64,846 psi | 89% | 3117 fps | 100% |
| Norma 204ᴾ | <<locked>> | 100% | 64,165 psi | 88% | 3143 fps | 98.1% |
| Norma MRPᴾ | <<locked>> | 100% | 49,864 psi | 69% | 3025 fps | 97.4% |
| Norma URPᴾ | <<locked>> | 100% | 63,266 psi | 87% | 3140 fps | 100% |
| Ramshot Big Game | <<locked>> | 90% | 62,105 psi | 86% | 3094 fps | 100% |
| Ramshot Hunterᴾ | <<locked>> | 100% | 62,178 psi | 86% | 3143 fps | 99.6% |
| Ramshot TAC | <<locked>> | 86% | 62,555 psi | 86% | 3061 fps | 99.8% |
| Ramshot Wild Boar | <<locked>> | 86% | 62,482 psi | 86% | 3074 fps | 100% |
| Ramshot X-Terminator | <<locked>> | 84% | 62,801 psi | 87% | 3031 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 36,405 psi | 50% | 1883 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 84% | 65,180 psi | 90% | 3051 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 92% | 63,164 psi | 87% | 3074 fps | 99.5% |
| ReloadSwiss RS 52 | <<locked>> | 88% | 62,975 psi | 87% | 3156 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 94% | 63,048 psi | 87% | 3189 fps | 100% |
| ReloadSwiss RS 62ᴾ | <<locked>> | 100% | 64,832 psi | 89% | 3182 fps | 100% |
| ReloadSwiss RS 70ᴾ | <<locked>> | 100% | 63,759 psi | 88% | 3219 fps | 100% |
| Rottweil R 901 | <<locked>> | 86% | 62,671 psi | 86% | 2999 fps | 100% |
| Rottweil R 902 | <<locked>> | 90% | 62,497 psi | 86% | 3022 fps | 100% |
| Rottweil R 903 | <<locked>> | 94% | 62,091 psi | 86% | 3061 fps | 100% |
| Rottweil R 905ᴾ | <<locked>> | 100% | 52,330 psi | 72% | 2986 fps | 96.5% |
| Rottweil R 907 | <<locked>> | 96% | 61,844 psi | 85% | 3051 fps | 98.7% |
| Shooters World Long Rifle | <<locked>> | 98% | 63,193 psi | 87% | 3071 fps | 99.8% |
| Shooters World Match Rifle | <<locked>> | 88% | 64,063 psi | 88% | 3054 fps | 100% |
| Shooters World Precision | <<locked>> | 92% | 63,701 psi | 88% | 3054 fps | 100% |
| Shooters World SW4350ᴾ | <<locked>> | 100% | 64,861 psi | 89% | 3117 fps | 99.5% |
| Shooters World Tactical Rifle | <<locked>> | 82% | 64,977 psi | 90% | 3031 fps | 100% |
| SNPE Vectan SP 11 | <<locked>> | 94% | 64,281 psi | 89% | 3130 fps | 100% |
| SNPE Vectan SP 3 | <<locked>> | 82% | 64,353 psi | 89% | 2989 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 86% | 61,264 psi | 84% | 3038 fps | 99.9% |
| SNPE Vectan SP 9 | <<locked>> | 88% | 61,699 psi | 85% | 3054 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 88% | 62,903 psi | 87% | 2949 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 94% | 63,744 psi | 88% | 2946 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 98% | 64,063 psi | 88% | 3028 fps | 99.2% |
| SNPE Vectan Tubal 8000ᴾ | <<locked>> | 100% | 51,851 psi | 72% | 2982 fps | 96.3% |
| Somchem S321 | <<locked>> | 84% | 64,078 psi | 88% | 3064 fps | 100% |
| Somchem S335 | <<locked>> | 88% | 62,482 psi | 86% | 2946 fps | 100% |
| Somchem S341 | <<locked>> | 88% | 65,050 psi | 90% | 3077 fps | 100% |
| Somchem S355 | <<locked>> | 94% | 62,207 psi | 86% | 3061 fps | 100% |
| Somchem S365ᴾ | <<locked>> | 100% | 57,957 psi | 80% | 3087 fps | 100% |
| Somchem S385ᴾ | <<locked>> | 100% | 53,258 psi | 73% | 2969 fps | 97.5% |
| Vihtavuori N130 | <<locked>> | 84% | 62,511 psi | 86% | 2904 fps | 100% |
| Vihtavuori N133 | <<locked>> | 88% | 63,208 psi | 87% | 2927 fps | 100% |
| Vihtavuori N135 | <<locked>> | 90% | 62,511 psi | 86% | 2972 fps | 100% |
| Vihtavuori N140 | <<locked>> | 90% | 63,382 psi | 87% | 2995 fps | 100% |
| Vihtavuori N150 | <<locked>> | 96% | 63,976 psi | 88% | 3035 fps | 100% |
| Vihtavuori N160 | <<locked>> | 98% | 61,714 psi | 85% | 3077 fps | 100% |
| Vihtavuori N530 | <<locked>> | 86% | 62,932 psi | 87% | 3028 fps | 100% |
| Vihtavuori N540 | <<locked>> | 92% | 65,209 psi | 90% | 3041 fps | 100% |
| Vihtavuori N550ᴾ | <<locked>> | 100% | 64,716 psi | 89% | 3136 fps | 100% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 49,516 psi | 68% | 2969 fps | 99.7% |
| Winchester 6.5 StaBALL | <<locked>> | 98% | 62,134 psi | 86% | 3048 fps | 100% |
| Winchester 748 | <<locked>> | 86% | 63,324 psi | 87% | 3077 fps | 100% |
| Winchester 760 | <<locked>> | 98% | 63,759 psi | 88% | 3163 fps | 99.3% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 40,016 psi | 55% | 2917 fps | 99.9% |
| Winchester StaBALL Match | <<locked>> | 88% | 62,018 psi | 86% | 3061 fps | 100% |
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% | 53,330 psi | 74% | 2818 fps | 100% |
| Accurate 2460 | <<locked>> | 80% | 58,813 psi | 81% | 2946 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 46,296 psi | 64% | 2749 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 53,838 psi | 74% | 2910 fps | 100% |
| Accurate 2700 | <<locked>> | 80% | 44,831 psi | 62% | 2726 fps | 95.2% |
| Accurate 3100 | <<locked>> | 94% | 38,189 psi | 53% | 2684 fps | 95.3% |
| Accurate 4064 | <<locked>> | 80% | 43,787 psi | 60% | 2746 fps | 100% |
| Accurate 4350 | <<locked>> | 80% | 32,648 psi | 45% | 2569 fps | 95.1% |
| Accurate LT-30 | <<locked>> | 80% | 61,076 psi | 84% | 2894 fps | 100% |
| Accurate LT-32 | <<locked>> | 80% | 61,583 psi | 85% | 2927 fps | 100% |
| ADI APS 450 | <<locked>> | 80% | 58,131 psi | 80% | 2267 fps | 100% |
| ADI AR 2206H | <<locked>> | 80% | 49,356 psi | 68% | 2867 fps | 99.8% |
| ADI AR 2208 | <<locked>> | 80% | 41,814 psi | 58% | 2710 fps | 98.5% |
| ADI AR 2209 | <<locked>> | 98% | 50,952 psi | 70% | 2956 fps | 95.7% |
| ADI Benchmark 8208 | <<locked>> | 80% | 51,416 psi | 71% | 2871 fps | 100% |
| Alliant AR-Comp | <<locked>> | 80% | 52,634 psi | 73% | 2848 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 80% | 60,684 psi | 84% | 3094 fps | 100% |
| Alliant Power Pro 2000-MR | 49 gr | 80% | 45,469 psi | 63% | 2913 fps | 99.1% |
| Alliant Power Pro Varmint | <<locked>> | 96% | 47,761 psi | 66% | 2897 fps | 95% |
| Alliant Power Pro Varmint | <<locked>> | 96% | 47,761 psi | 66% | 2897 fps | 95% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 41,858 psi | 58% | 2733 fps | 99.5% |
| Alliant Reloder-10x | <<locked>> | 80% | 59,466 psi | 82% | 2913 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 80% | 44,933 psi | 62% | 2805 fps | 99.1% |
| Alliant Reloder-16 | <<locked>> | 80% | 32,590 psi | 45% | 2582 fps | 95.1% |
| Alliant Reloder-17 | <<locked>> | 80% | 36,405 psi | 50% | 2713 fps | 98.4% |
| Alliant Reloder-19 | <<locked>> | 98% | 50,082 psi | 69% | 2943 fps | 95.7% |
| Alliant Reloder-23 | <<locked>> | 88% | 30,414 psi | 42% | 2546 fps | 96% |
| Alliant Reloder-26 | <<locked>> | 90% | 35,128 psi | 48% | 2733 fps | 95.4% |
| Baschieri & Pellagri 106 | <<locked>> | 80% | 60,959 psi | 84% | 2887 fps | 100% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 48,892 psi | 67% | 2877 fps | 99.3% |
| Bofors RP3 | <<locked>> | 80% | 41,959 psi | 58% | 2743 fps | 99.5% |
| Bofors RP7 | <<locked>> | 86% | 45,107 psi | 62% | 2769 fps | 95.6% |
| Hodgdon Benchmark | <<locked>> | 80% | 52,866 psi | 73% | 2854 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 80% | 50,937 psi | 70% | 2897 fps | 100% |
| Hodgdon CFE223 | <<locked>> | 80% | 56,434 psi | 78% | 3058 fps | 100% |
| Hodgdon H322 | <<locked>> | 80% | 58,697 psi | 81% | 2959 fps | 100% |
| Hodgdon H335 | <<locked>> | 80% | 59,973 psi | 83% | 2989 fps | 100% |
| Hodgdon H380 | <<locked>> | 80% | 42,569 psi | 59% | 2749 fps | 97.7% |
| Hodgdon H414 | <<locked>> | 86% | 42,482 psi | 59% | 2799 fps | 95.5% |
| Hodgdon H4350 | <<locked>> | 86% | 46,108 psi | 64% | 2825 fps | 95% |
| Hodgdon H4895 | <<locked>> | 80% | 49,850 psi | 69% | 2877 fps | 99.9% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 30,037 psi | 41% | 2480 fps | 96% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 46,064 psi | 64% | 2851 fps | 99.9% |
| Hodgdon Superformance | 56.1 gr | 88% | 45,092 psi | 62% | 2877 fps | 95.8% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,803 psi | 37% | 1647 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 47,601 psi | 66% | 2825 fps | 99.8% |
| IMR 3031 | <<locked>> | 80% | 49,922 psi | 69% | 2864 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 43,947 psi | 61% | 2746 fps | 99% |
| IMR 4166 Enduron | <<locked>> | 80% | 46,311 psi | 64% | 2769 fps | 96.5% |
| IMR 4198 | <<locked>> | 80% | 58,769 psi | 81% | 2864 fps | 100% |
| IMR 4350 | <<locked>> | 90% | 45,513 psi | 63% | 2799 fps | 95.7% |
| IMR 4451 Enduron | <<locked>> | 84% | 43,961 psi | 61% | 2749 fps | 95.8% |
| IMR 4831 | <<locked>> | 82% | 33,750 psi | 47% | 2582 fps | 95.7% |
| IMR 4895 | <<locked>> | 80% | 46,079 psi | 64% | 2835 fps | 99.6% |
| IMR 8208 XBR | <<locked>> | 80% | 51,416 psi | 71% | 2871 fps | 100% |
| Lovex D073.5 | <<locked>> | 80% | 58,610 psi | 81% | 2956 fps | 100% |
| Lovex D073.6 | <<locked>> | 80% | 49,139 psi | 68% | 2844 fps | 100% |
| Lovex S060 | <<locked>> | 80% | 48,646 psi | 67% | 2795 fps | 99.8% |
| Lovex S062 | <<locked>> | 80% | 44,048 psi | 61% | 2749 fps | 99.8% |
| Lovex S065 | <<locked>> | 80% | 36,361 psi | 50% | 2585 fps | 95% |
| Lovex S070 | <<locked>> | 86% | 41,800 psi | 58% | 2726 fps | 95.5% |
| Norma 201 | <<locked>> | 80% | 48,327 psi | 67% | 2818 fps | 100% |
| Norma 202 | <<locked>> | 80% | 48,646 psi | 67% | 2815 fps | 100% |
| Norma 203B | <<locked>> | 80% | 44,338 psi | 61% | 2792 fps | 99.3% |
| Norma 204 | <<locked>> | 92% | 48,689 psi | 67% | 2897 fps | 95.1% |
| Norma MRP | <<locked>> | 96% | 43,453 psi | 60% | 2894 fps | 95.6% |
| Norma URP | <<locked>> | 80% | 32,808 psi | 45% | 2569 fps | 95% |
| Ramshot Big Game | <<locked>> | 80% | 44,251 psi | 61% | 2808 fps | 99.2% |
| Ramshot Hunter | <<locked>> | 86% | 38,827 psi | 54% | 2726 fps | 95.3% |
| Ramshot TAC | <<locked>> | 80% | 51,401 psi | 71% | 2887 fps | 98.8% |
| Ramshot Wild Boar | <<locked>> | 80% | 51,140 psi | 71% | 2900 fps | 99.9% |
| Ramshot X-Terminator | <<locked>> | 80% | 55,347 psi | 76% | 2923 fps | 100% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,224 psi | 38% | 1686 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 57,522 psi | 79% | 2949 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 42,670 psi | 59% | 2726 fps | 96.2% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 48,037 psi | 66% | 2920 fps | 99.5% |
| ReloadSwiss RS 60 | 48.2 gr | 80% | 38,725 psi | 53% | 2779 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 82% | 34,679 psi | 48% | 2644 fps | 95.5% |
| ReloadSwiss RS 70 | <<locked>> | 84% | 36,651 psi | 51% | 2707 fps | 95.5% |
| Rottweil R 901 | <<locked>> | 80% | 52,359 psi | 72% | 2851 fps | 100% |
| Rottweil R 902 | <<locked>> | 80% | 45,876 psi | 63% | 2766 fps | 99.9% |
| Rottweil R 903 | <<locked>> | 80% | 39,494 psi | 54% | 2687 fps | 99% |
| Rottweil R 905 | <<locked>> | 98% | 49,037 psi | 68% | 2927 fps | 95.7% |
| Rottweil R 907 | <<locked>> | 86% | 45,107 psi | 62% | 2769 fps | 95.6% |
| Shooters World Long Rifle | <<locked>> | 80% | 36,361 psi | 50% | 2585 fps | 95% |
| Shooters World Match Rifle | <<locked>> | 80% | 49,139 psi | 68% | 2844 fps | 100% |
| Shooters World Precision | <<locked>> | 80% | 44,048 psi | 61% | 2749 fps | 99.8% |
| Shooters World SW4350 | <<locked>> | 86% | 41,800 psi | 58% | 2726 fps | 95.5% |
| Shooters World Tactical Rifle | <<locked>> | 80% | 60,829 psi | 84% | 2976 fps | 100% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 40,480 psi | 56% | 2736 fps | 98.7% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 60,510 psi | 83% | 2940 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 49,922 psi | 69% | 2861 fps | 98.9% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 47,819 psi | 66% | 2835 fps | 99.7% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 49,385 psi | 68% | 2759 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 41,423 psi | 57% | 2621 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 86% | 43,149 psi | 60% | 2690 fps | 95.7% |
| SNPE Vectan Tubal 8000 | <<locked>> | 98% | 48,573 psi | 67% | 2923 fps | 95.5% |
| Somchem S321 | <<locked>> | 80% | 56,014 psi | 77% | 2956 fps | 100% |
| Somchem S335 | <<locked>> | 80% | 49,052 psi | 68% | 2756 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 49,763 psi | 69% | 2854 fps | 99.8% |
| Somchem S355 | <<locked>> | 80% | 40,074 psi | 55% | 2690 fps | 99% |
| Somchem S365 | <<locked>> | 80% | 29,399 psi | 41% | 2520 fps | 97.3% |
| Somchem S385 | <<locked>> | 94% | 43,627 psi | 60% | 2792 fps | 95.1% |
| Vihtavuori N130 | <<locked>> | 80% | 55,434 psi | 76% | 2812 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 49,806 psi | 69% | 2746 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 45,861 psi | 63% | 2740 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 46,238 psi | 64% | 2749 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 38,203 psi | 53% | 2621 fps | 99.5% |
| Vihtavuori N160 | <<locked>> | 80% | 34,185 psi | 47% | 2575 fps | 95.5% |
| Vihtavuori N530 | <<locked>> | 80% | 51,692 psi | 71% | 2867 fps | 100% |
| Vihtavuori N540 | <<locked>> | 80% | 44,614 psi | 62% | 2740 fps | 100% |
| Vihtavuori N550 | <<locked>> | 80% | 33,707 psi | 46% | 2575 fps | 95.1% |
| Vihtavuori N555 | <<locked>> | 86% | 31,082 psi | 43% | 2569 fps | 95.2% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 33,750 psi | 47% | 2546 fps | 97.7% |
| Winchester 748 | <<locked>> | 80% | 51,808 psi | 71% | 2917 fps | 100% |
| Winchester 760 | <<locked>> | 86% | 42,728 psi | 59% | 2802 fps | 95.6% |
| Winchester StaBALL HD | <<locked>> | 90% | 28,660 psi | 40% | 2569 fps | 95.6% |
| Winchester StaBALL Match | <<locked>> | 80% | 47,616 psi | 66% | 2841 fps | 99.9% |
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 118 powders for .270 Win. Ackley Improved loaded with the .277 | 130gr | Rhino Penetrator. Alliant Power Pro 2000-MR delivers the highest muzzle velocity at 3,225 fps; across all powders the maximum-charge window runs from 1,844 fps to 3,225 fps. Accurate 3100 gives the best case fill at 100 %, and 118 of the 118 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 1:10.0 twist; slower twists will usually not stabilise this weight. Accurate 3100, Accurate 4350, 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. ReloadSwiss RS 60, Alliant Power Pro 2000-MR, Hodgdon Superformance rank at the top here: for .270 Win. Ackley Improved with the .277 | 130gr | Rhino Penetrator 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.