Load Specifications
Load data in caliber .270 Win. with .277 | 120gr | SAKO Blade bullet and 96 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, ReloadSwiss RS 60 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>> | 84% | 55,535 psi | 89% | 2953 fps | 100% |
| Accurate 2495 | <<locked>> | 88% | 54,418 psi | 87% | 2972 fps | 100% |
| Accurate 2520 | <<locked>> | 84% | 54,215 psi | 87% | 3022 fps | 100% |
| Accurate 2520 | <<locked>> | 84% | 54,215 psi | 87% | 3022 fps | 100% |
| Accurate 2700 | <<locked>> | 92% | 54,636 psi | 88% | 2966 fps | 96.2% |
| Accurate 4064 | <<locked>> | 90% | 54,143 psi | 87% | 3015 fps | 100% |
| Accurate 4350 | <<locked>> | 98% | 54,172 psi | 87% | 3097 fps | 99.2% |
| ADI AR 2206H | <<locked>> | 86% | 54,578 psi | 88% | 3048 fps | 99.8% |
| ADI AR 2208 | <<locked>> | 92% | 55,521 psi | 89% | 3045 fps | 99.6% |
| ADI Benchmark 8208 | <<locked>> | 84% | 53,577 psi | 86% | 2999 fps | 100% |
| Alliant AR-Comp | <<locked>> | 84% | 54,433 psi | 87% | 2979 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 88% | 54,230 psi | 87% | 3166 fps | 99.6% |
| Alliant Reloder- TS 15.5 | <<locked>> | 92% | 55,666 psi | 89% | 3071 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 90% | 56,202 psi | 90% | 3091 fps | 99.7% |
| Alliant Reloder-16ᴾ | <<locked>> | 100% | 55,158 psi | 88% | 3156 fps | 99.6% |
| Alliant Reloder-17 | <<locked>> | 94% | 52,939 psi | 85% | 3136 fps | 99.9% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 39,653 psi | 64% | 2867 fps | 98.1% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 44,527 psi | 71% | 3035 fps | 97.4% |
| Baschieri & Pellagri 107 | <<locked>> | 86% | 54,288 psi | 87% | 3058 fps | 99.3% |
| Bofors RP3 | <<locked>> | 90% | 52,895 psi | 85% | 3035 fps | 99.9% |
| Bofors RP7 | <<locked>> | 94% | 53,069 psi | 85% | 2995 fps | 96.2% |
| Hodgdon Benchmark | <<locked>> | 84% | 55,288 psi | 89% | 2982 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 84% | 52,823 psi | 85% | 3025 fps | 100% |
| Hodgdon CFE223 | <<locked>> | 82% | 54,853 psi | 88% | 3130 fps | 99.6% |
| Hodgdon H322 | <<locked>> | 82% | 53,316 psi | 85% | 2982 fps | 100% |
| Hodgdon H380 | <<locked>> | 90% | 53,708 psi | 86% | 3041 fps | 98.8% |
| Hodgdon H414 | <<locked>> | 94% | 55,114 psi | 88% | 3117 fps | 97.3% |
| Hodgdon H4350 | <<locked>> | 98% | 55,550 psi | 89% | 3077 fps | 96% |
| Hodgdon H4895 | <<locked>> | 86% | 55,114 psi | 88% | 3061 fps | 99.9% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 51,590 psi | 83% | 3025 fps | 99.8% |
| Hodgdon LEVERevolution | <<locked>> | 90% | 54,636 psi | 88% | 3094 fps | 100% |
| Hodgdon Superformance | <<locked>> | 96% | 54,157 psi | 87% | 3123 fps | 96.7% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,389 psi | 57% | 1886 fps | 100% |
| Hodgdon VARGET | <<locked>> | 90% | 55,245 psi | 89% | 3045 fps | 99.9% |
| IMR 3031 | <<locked>> | 88% | 53,461 psi | 86% | 3022 fps | 100% |
| IMR 4064 | <<locked>> | 92% | 54,273 psi | 87% | 3018 fps | 99.6% |
| IMR 4166 Enduron | <<locked>> | 92% | 53,867 psi | 86% | 2986 fps | 96.9% |
| IMR 4350 | <<locked>> | 98% | 53,316 psi | 85% | 3018 fps | 96.3% |
| IMR 4451 Enduron | <<locked>> | 94% | 54,795 psi | 88% | 3028 fps | 97% |
| IMR 4831ᴾ | <<locked>> | 100% | 48,443 psi | 78% | 2982 fps | 98.5% |
| IMR 4895 | <<locked>> | 88% | 54,085 psi | 87% | 3068 fps | 99.8% |
| IMR 8208 XBR | <<locked>> | 84% | 53,577 psi | 86% | 2999 fps | 100% |
| Lovex D073.6 | <<locked>> | 86% | 54,520 psi | 87% | 3028 fps | 100% |
| Lovex S060 | <<locked>> | 86% | 54,128 psi | 87% | 2972 fps | 99.7% |
| Lovex S062 | <<locked>> | 90% | 55,071 psi | 88% | 3028 fps | 100% |
| Lovex S065 | <<locked>> | 96% | 54,273 psi | 87% | 3025 fps | 98.2% |
| Lovex S070 | <<locked>> | 98% | 55,274 psi | 89% | 3058 fps | 97.5% |
| Norma 201 | <<locked>> | 86% | 53,476 psi | 86% | 2995 fps | 100% |
| Norma 202 | <<locked>> | 86% | 53,780 psi | 86% | 2995 fps | 100% |
| Norma 203B | <<locked>> | 90% | 55,361 psi | 89% | 3077 fps | 99.8% |
| Norma URP | <<locked>> | 98% | 53,200 psi | 85% | 3084 fps | 99% |
| Ramshot Big Game | <<locked>> | 90% | 56,217 psi | 90% | 3107 fps | 99.8% |
| Ramshot Hunterᴾ | <<locked>> | 100% | 55,593 psi | 89% | 3133 fps | 98.2% |
| Ramshot TAC | <<locked>> | 84% | 54,012 psi | 87% | 3015 fps | 98.3% |
| Ramshot Wild Boar | <<locked>> | 84% | 53,461 psi | 86% | 3031 fps | 99.7% |
| Ramshot X-Terminator | <<locked>> | 82% | 54,534 psi | 87% | 2999 fps | 99.7% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 35,955 psi | 58% | 1936 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 90% | 53,940 psi | 86% | 3018 fps | 97.6% |
| ReloadSwiss RS 52 | <<locked>> | 86% | 53,185 psi | 85% | 3104 fps | 99.4% |
| ReloadSwiss RS 60 | <<locked>> | 94% | 56,420 psi | 90% | 3199 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 98% | 53,882 psi | 86% | 3117 fps | 99% |
| ReloadSwiss RS 70 | <<locked>> | 98% | 53,374 psi | 86% | 3140 fps | 98.7% |
| Rottweil R 901 | <<locked>> | 84% | 54,462 psi | 87% | 2982 fps | 100% |
| Rottweil R 902 | <<locked>> | 88% | 53,998 psi | 87% | 2992 fps | 100% |
| Rottweil R 903 | <<locked>> | 94% | 56,275 psi | 90% | 3077 fps | 100% |
| Rottweil R 907 | <<locked>> | 94% | 53,069 psi | 85% | 2995 fps | 96.2% |
| Shooters World Long Rifle | <<locked>> | 96% | 54,273 psi | 87% | 3025 fps | 98.2% |
| Shooters World Match Rifle | <<locked>> | 86% | 54,520 psi | 87% | 3028 fps | 100% |
| Shooters World Precision | <<locked>> | 90% | 55,071 psi | 88% | 3028 fps | 100% |
| Shooters World SW4350 | <<locked>> | 98% | 55,274 psi | 89% | 3058 fps | 97.5% |
| SNPE Vectan SP 11 | <<locked>> | 92% | 54,375 psi | 87% | 3084 fps | 99.8% |
| SNPE Vectan SP 7 | <<locked>> | 86% | 55,999 psi | 90% | 3048 fps | 99% |
| SNPE Vectan SP 9 | <<locked>> | 86% | 53,156 psi | 85% | 3018 fps | 99.7% |
| SNPE Vectan Tubal 3000 | <<locked>> | 86% | 54,810 psi | 88% | 2933 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 92% | 55,245 psi | 89% | 2933 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 96% | 54,650 psi | 88% | 2972 fps | 97.1% |
| Somchem S321 | <<locked>> | 82% | 54,926 psi | 88% | 3031 fps | 100% |
| Somchem S335 | <<locked>> | 86% | 54,331 psi | 87% | 2933 fps | 100% |
| Somchem S341 | <<locked>> | 86% | 55,361 psi | 89% | 3035 fps | 99.8% |
| Somchem S355 | <<locked>> | 94% | 56,434 psi | 90% | 3074 fps | 100% |
| Somchem S365ᴾ | <<locked>> | 100% | 51,126 psi | 82% | 3084 fps | 100% |
| Unknown powder | <<locked>> | 96% | 54,317 psi | 87% | 3094 fps | 98.7% |
| Vihtavuori N130 | <<locked>> | 82% | 53,417 psi | 86% | 2884 fps | 100% |
| Vihtavuori N133 | <<locked>> | 88% | 54,520 psi | 87% | 2917 fps | 100% |
| Vihtavuori N135 | <<locked>> | 88% | 53,693 psi | 86% | 2959 fps | 100% |
| Vihtavuori N140 | <<locked>> | 88% | 53,708 psi | 86% | 2966 fps | 100% |
| Vihtavuori N150 | <<locked>> | 98% | 54,375 psi | 87% | 3005 fps | 100% |
| Vihtavuori N160 | <<locked>> | 96% | 54,926 psi | 88% | 3064 fps | 99.2% |
| Vihtavuori N530 | <<locked>> | 82% | 53,040 psi | 85% | 3002 fps | 100% |
| Vihtavuori N540 | <<locked>> | 88% | 53,534 psi | 86% | 2995 fps | 100% |
| Vihtavuori N550 | <<locked>> | 96% | 54,998 psi | 88% | 3110 fps | 99.1% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 43,424 psi | 70% | 2949 fps | 98.1% |
| Winchester 6.5 StaBALL | <<locked>> | 98% | 56,130 psi | 90% | 3058 fps | 100% |
| Winchester 748 | <<locked>> | 82% | 54,665 psi | 88% | 3058 fps | 100% |
| Winchester 760 | <<locked>> | 94% | 55,114 psi | 88% | 3117 fps | 97.3% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 35,476 psi | 57% | 2854 fps | 97.7% |
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% | 48,834 psi | 78% | 2848 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 41,684 psi | 67% | 2766 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 47,311 psi | 76% | 2910 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 47,311 psi | 76% | 2910 fps | 100% |
| Accurate 2700 | <<locked>> | 90% | 51,039 psi | 82% | 2907 fps | 95.4% |
| Accurate 4064 | <<locked>> | 80% | 39,421 psi | 63% | 2756 fps | 99.9% |
| Accurate 4350 | <<locked>> | 88% | 38,087 psi | 61% | 2789 fps | 95.8% |
| ADI AR 2206H | <<locked>> | 80% | 45,237 psi | 73% | 2881 fps | 98.7% |
| ADI AR 2208 | <<locked>> | 80% | 38,450 psi | 62% | 2713 fps | 96.5% |
| ADI Benchmark 8208 | <<locked>> | 80% | 47,282 psi | 76% | 2890 fps | 99.7% |
| Alliant AR-Comp | <<locked>> | 80% | 47,529 psi | 76% | 2877 fps | 100% |
| Alliant Power Pro 2000-MR | 47.4 gr | 80% | 41,191 psi | 66% | 2900 fps | 97.1% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 37,942 psi | 61% | 2736 fps | 98% |
| Alliant Reloder-15 | <<locked>> | 80% | 40,901 psi | 66% | 2805 fps | 97.4% |
| Alliant Reloder-16 | <<locked>> | 86% | 35,752 psi | 57% | 2743 fps | 95% |
| Alliant Reloder-17 | <<locked>> | 80% | 32,822 psi | 53% | 2687 fps | 95.7% |
| Alliant Reloder-23 | <<locked>> | 94% | 32,822 psi | 53% | 2687 fps | 95.5% |
| Alliant Reloder-26 | <<locked>> | 96% | 38,580 psi | 62% | 2894 fps | 95.2% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 44,556 psi | 71% | 2881 fps | 97.8% |
| Bofors RP3 | <<locked>> | 80% | 37,826 psi | 61% | 2743 fps | 98.1% |
| Bofors RP7 | <<locked>> | 92% | 49,835 psi | 80% | 2936 fps | 95.4% |
| Hodgdon Benchmark | <<locked>> | 80% | 48,921 psi | 78% | 2881 fps | 99.9% |
| Hodgdon BL-C2 | <<locked>> | 80% | 46,267 psi | 74% | 2910 fps | 99.8% |
| Hodgdon CFE223 | <<locked>> | 80% | 51,097 psi | 82% | 3064 fps | 99.3% |
| Hodgdon H322 | <<locked>> | 80% | 50,212 psi | 81% | 2933 fps | 100% |
| Hodgdon H380 | <<locked>> | 80% | 38,464 psi | 62% | 2740 fps | 95.3% |
| Hodgdon H414 | <<locked>> | 90% | 47,863 psi | 77% | 2989 fps | 95.7% |
| Hodgdon H4350 | <<locked>> | 96% | 52,156 psi | 84% | 3018 fps | 95.2% |
| Hodgdon H4895 | <<locked>> | 80% | 45,643 psi | 73% | 2894 fps | 99.2% |
| Hodgdon Hybrid 100V | <<locked>> | 86% | 32,895 psi | 53% | 2635 fps | 95.9% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 39,073 psi | 63% | 2799 fps | 98.4% |
| Hodgdon Superformance | 57.9 gr | 94% | 50,212 psi | 81% | 3054 fps | 95.7% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,426 psi | 42% | 1690 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 40,437 psi | 65% | 2766 fps | 98.2% |
| IMR 3031 | <<locked>> | 80% | 41,553 psi | 67% | 2818 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 37,594 psi | 60% | 2690 fps | 96.6% |
| IMR 4166 Enduron | <<locked>> | 88% | 47,630 psi | 76% | 2871 fps | 95.5% |
| IMR 4350 | <<locked>> | 96% | 50,096 psi | 80% | 2963 fps | 95.5% |
| IMR 4451 Enduron | <<locked>> | 90% | 48,457 psi | 78% | 2913 fps | 95.6% |
| IMR 4831 | <<locked>> | 92% | 37,710 psi | 60% | 2762 fps | 95.8% |
| IMR 4895 | <<locked>> | 80% | 41,930 psi | 67% | 2838 fps | 98.2% |
| IMR 8208 XBR | <<locked>> | 80% | 47,282 psi | 76% | 2890 fps | 99.7% |
| Lovex D073.6 | <<locked>> | 80% | 44,338 psi | 71% | 2858 fps | 100% |
| Lovex S060 | <<locked>> | 80% | 45,150 psi | 72% | 2815 fps | 98.8% |
| Lovex S062 | <<locked>> | 80% | 40,321 psi | 65% | 2759 fps | 98.8% |
| Lovex S065 | <<locked>> | 88% | 42,525 psi | 68% | 2802 fps | 95.6% |
| Lovex S070 | <<locked>> | 92% | 45,774 psi | 73% | 2887 fps | 95.3% |
| Norma 201 | <<locked>> | 80% | 44,193 psi | 71% | 2828 fps | 99.4% |
| Norma 202 | <<locked>> | 80% | 44,396 psi | 71% | 2838 fps | 100% |
| Norma 203B | <<locked>> | 80% | 40,292 psi | 65% | 2795 fps | 97.8% |
| Norma URP | <<locked>> | 88% | 38,305 psi | 61% | 2789 fps | 95.8% |
| Ramshot Big Game | <<locked>> | 80% | 39,914 psi | 64% | 2805 fps | 97.5% |
| Ramshot Hunter | <<locked>> | 92% | 42,627 psi | 68% | 2887 fps | 95.1% |
| Ramshot TAC | <<locked>> | 80% | 47,326 psi | 76% | 2890 fps | 97.1% |
| Ramshot Wild Boar | <<locked>> | 80% | 46,717 psi | 75% | 2913 fps | 99% |
| Ramshot X-Terminator | <<locked>> | 80% | 51,053 psi | 82% | 2940 fps | 99.4% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 26,789 psi | 43% | 1732 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 84% | 44,512 psi | 71% | 2844 fps | 95.4% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 42,989 psi | 69% | 2913 fps | 97.8% |
| ReloadSwiss RS 60 | 46.6 gr | 80% | 34,911 psi | 56% | 2762 fps | 98.9% |
| ReloadSwiss RS 62 | <<locked>> | 88% | 37,985 psi | 61% | 2808 fps | 95.4% |
| ReloadSwiss RS 70 | <<locked>> | 90% | 40,640 psi | 65% | 2874 fps | 95.4% |
| Rottweil R 901 | <<locked>> | 80% | 48,341 psi | 78% | 2881 fps | 100% |
| Rottweil R 902 | <<locked>> | 80% | 42,148 psi | 68% | 2779 fps | 99.1% |
| Rottweil R 903 | <<locked>> | 80% | 35,520 psi | 57% | 2680 fps | 97.1% |
| Rottweil R 907 | <<locked>> | 92% | 49,835 psi | 80% | 2936 fps | 95.4% |
| Shooters World Long Rifle | <<locked>> | 88% | 42,525 psi | 68% | 2802 fps | 95.6% |
| Shooters World Match Rifle | <<locked>> | 80% | 44,338 psi | 71% | 2858 fps | 100% |
| Shooters World Precision | <<locked>> | 80% | 40,321 psi | 65% | 2759 fps | 98.8% |
| Shooters World SW4350 | <<locked>> | 92% | 45,774 psi | 73% | 2887 fps | 95.3% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 36,419 psi | 58% | 2730 fps | 96.5% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 45,498 psi | 73% | 2861 fps | 97.2% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 43,598 psi | 70% | 2841 fps | 98.5% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 45,643 psi | 73% | 2785 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 38,014 psi | 61% | 2641 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 92% | 48,037 psi | 77% | 2861 fps | 95.6% |
| Somchem S321 | <<locked>> | 80% | 51,343 psi | 82% | 2976 fps | 100% |
| Somchem S335 | <<locked>> | 80% | 45,150 psi | 72% | 2785 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 45,339 psi | 73% | 2861 fps | 98.7% |
| Somchem S355 | <<locked>> | 80% | 36,289 psi | 58% | 2687 fps | 97.1% |
| Somchem S365 | <<locked>> | 82% | 28,079 psi | 45% | 2549 fps | 95.1% |
| Unknown powder | <<locked>> | 86% | 38,986 psi | 63% | 2795 fps | 95.2% |
| Vihtavuori N130 | <<locked>> | 80% | 50,401 psi | 81% | 2838 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 42,888 psi | 69% | 2730 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 41,684 psi | 67% | 2766 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 41,582 psi | 67% | 2759 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 31,067 psi | 50% | 2536 fps | 96.8% |
| Vihtavuori N160 | <<locked>> | 84% | 36,666 psi | 59% | 2713 fps | 95.1% |
| Vihtavuori N530 | <<locked>> | 80% | 49,734 psi | 80% | 2946 fps | 99.9% |
| Vihtavuori N540 | <<locked>> | 80% | 41,408 psi | 66% | 2779 fps | 99.9% |
| Vihtavuori N550 | <<locked>> | 84% | 37,057 psi | 59% | 2753 fps | 95.1% |
| Vihtavuori N555 | <<locked>> | 94% | 35,491 psi | 57% | 2769 fps | 95.7% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 30,734 psi | 49% | 2536 fps | 95% |
| Winchester 748 | <<locked>> | 80% | 50,981 psi | 82% | 2999 fps | 100% |
| Winchester 760 | <<locked>> | 90% | 47,863 psi | 77% | 2989 fps | 95.7% |
| Winchester StaBALL HD | <<locked>> | 96% | 31,140 psi | 50% | 2707 fps | 95% |
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 96 powders for .270 Win. loaded with the .277 | 120gr | SAKO Blade. ReloadSwiss RS 60 delivers the highest muzzle velocity at 3,199 fps; across all powders the maximum-charge window runs from 1,886 fps to 3,199 fps. Alliant Reloder-16 gives the best case fill at 100 %, and 96 of the 96 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (430 MPa), the top charges use 57–90 %, leaving at least 10 % headroom. The 120.0 gr projectile in 0.277" calls for a 1:10.0 twist; slower twists will usually not stabilise this weight. Alliant Reloder-16, Alliant Reloder-23, Alliant Reloder-26 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, ReloadSwiss RS 60, Hodgdon Superformance rank at the top here: for .270 Win. with the .277 | 120gr | SAKO Blade 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.