Load Specifications
Load data in caliber .270 Win. with .277 | 130gr | Norma Semi Soft Point 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 Reloder-16, ReloadSwiss RS 70 and Ramshot Hunter.
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.
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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 2495 | <<locked>> | 86% | 56,159 psi | 90% | 2890 fps | 100% |
| Accurate 2700 | <<locked>> | 86% | 54,433 psi | 87% | 2890 fps | 97.4% |
| Accurate 3100ᴾ | <<locked>> | 100% | 46,949 psi | 75% | 2854 fps | 97.6% |
| Accurate 4064 | <<locked>> | 88% | 56,173 psi | 90% | 2940 fps | 100% |
| Accurate 4350 | <<locked>> | 94% | 53,011 psi | 85% | 2982 fps | 99.6% |
| ADI AR 2206H | <<locked>> | 84% | 55,753 psi | 89% | 2969 fps | 100% |
| ADI AR 2208 | <<locked>> | 88% | 53,461 psi | 86% | 2917 fps | 99.8% |
| ADI AR 2209ᴾ | <<locked>> | 100% | 54,375 psi | 87% | 3012 fps | 96.5% |
| ADI Benchmark 8208 | <<locked>> | 82% | 54,723 psi | 88% | 2917 fps | 100% |
| Alliant AR-Comp | <<locked>> | 82% | 55,912 psi | 90% | 2887 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 86% | 55,956 psi | 90% | 3097 fps | 100% |
| Alliant Reloder- TS 15.5 | <<locked>> | 88% | 53,998 psi | 87% | 2943 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 86% | 54,418 psi | 87% | 2966 fps | 99.9% |
| Alliant Reloder-16 | <<locked>> | 96% | 53,925 psi | 86% | 3038 fps | 99.9% |
| Alliant Reloder-17 | <<locked>> | 92% | 55,071 psi | 88% | 3071 fps | 100% |
| Alliant Reloder-19ᴾ | <<locked>> | 100% | 53,330 psi | 86% | 2995 fps | 96.4% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 44,382 psi | 71% | 2881 fps | 99.7% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 50,241 psi | 81% | 3064 fps | 99.4% |
| Baschieri & Pellagri 107 | <<locked>> | 84% | 55,796 psi | 89% | 2986 fps | 99.8% |
| Bofors RP3 | <<locked>> | 88% | 54,723 psi | 88% | 2963 fps | 100% |
| Bofors RP7 | <<locked>> | 92% | 54,273 psi | 87% | 2930 fps | 97.6% |
| Hodgdon Benchmark | <<locked>> | 82% | 56,202 psi | 90% | 2900 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 82% | 54,534 psi | 87% | 2949 fps | 100% |
| Hodgdon H380 | <<locked>> | 88% | 55,259 psi | 89% | 2972 fps | 99.6% |
| Hodgdon H414 | <<locked>> | 94% | 55,521 psi | 89% | 3031 fps | 98.4% |
| Hodgdon H4350 | <<locked>> | 92% | 55,709 psi | 89% | 2992 fps | 97.2% |
| Hodgdon H4895 | <<locked>> | 84% | 56,405 psi | 90% | 2979 fps | 100% |
| Hodgdon Hybrid 100V | <<locked>> | 98% | 53,824 psi | 86% | 2959 fps | 100% |
| Hodgdon LEVERevolution | <<locked>> | 84% | 52,823 psi | 85% | 2959 fps | 100% |
| Hodgdon Superformance | <<locked>> | 94% | 55,796 psi | 89% | 3068 fps | 98.1% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,810 psi | 57% | 1834 fps | 100% |
| Hodgdon VARGET | <<locked>> | 84% | 54,172 psi | 87% | 2930 fps | 100% |
| IMR 3031 | <<locked>> | 82% | 53,316 psi | 85% | 2910 fps | 100% |
| IMR 4064 | <<locked>> | 88% | 56,333 psi | 90% | 2953 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 86% | 56,144 psi | 90% | 2936 fps | 98.3% |
| IMR 4350 | <<locked>> | 96% | 54,911 psi | 88% | 2959 fps | 97.7% |
| IMR 4451 Enduron | <<locked>> | 92% | 56,202 psi | 90% | 2963 fps | 98.3% |
| IMR 4831 | <<locked>> | 96% | 53,577 psi | 86% | 2972 fps | 99.7% |
| IMR 4895 | <<locked>> | 86% | 55,782 psi | 89% | 2995 fps | 100% |
| IMR 8208 XBR | <<locked>> | 82% | 54,723 psi | 88% | 2917 fps | 100% |
| Lovex D073.6 | <<locked>> | 84% | 56,086 psi | 90% | 2946 fps | 100% |
| Lovex S060 | <<locked>> | 84% | 54,969 psi | 88% | 2894 fps | 100% |
| Lovex S062 | <<locked>> | 86% | 52,997 psi | 85% | 2897 fps | 100% |
| Lovex S065 | <<locked>> | 94% | 55,898 psi | 90% | 2959 fps | 99.2% |
| Lovex S070 | <<locked>> | 94% | 53,650 psi | 86% | 2943 fps | 98.2% |
| Norma 201 | <<locked>> | 84% | 54,694 psi | 88% | 2917 fps | 100% |
| Norma 202 | <<locked>> | 84% | 55,085 psi | 88% | 2910 fps | 100% |
| Norma 203B | <<locked>> | 86% | 53,650 psi | 86% | 2953 fps | 100% |
| Norma 204 | <<locked>> | 96% | 55,651 psi | 89% | 3012 fps | 96.7% |
| Norma MRPᴾ | <<locked>> | 100% | 49,705 psi | 80% | 3012 fps | 97.2% |
| Norma URP | <<locked>> | 96% | 55,303 psi | 89% | 3018 fps | 99.8% |
| Ramshot Big Game | <<locked>> | 86% | 54,186 psi | 87% | 2976 fps | 100% |
| Ramshot Hunter | <<locked>> | 96% | 54,128 psi | 87% | 3015 fps | 98.8% |
| Ramshot TAC | <<locked>> | 82% | 54,911 psi | 88% | 2940 fps | 99.2% |
| Ramshot Wild Boar | <<locked>> | 82% | 54,694 psi | 88% | 2953 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 36,434 psi | 58% | 1880 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 88% | 55,535 psi | 89% | 2956 fps | 98.7% |
| ReloadSwiss RS 52 | <<locked>> | 84% | 54,955 psi | 88% | 3031 fps | 99.9% |
| ReloadSwiss RS 60 | <<locked>> | 90% | 54,694 psi | 88% | 3068 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 94% | 52,779 psi | 85% | 3002 fps | 99.5% |
| ReloadSwiss RS 70 | <<locked>> | 96% | 55,347 psi | 89% | 3084 fps | 99.7% |
| Rottweil R 901 | <<locked>> | 82% | 55,405 psi | 89% | 2894 fps | 100% |
| Rottweil R 902 | <<locked>> | 86% | 55,201 psi | 89% | 2913 fps | 100% |
| Rottweil R 903 | <<locked>> | 90% | 54,563 psi | 87% | 2953 fps | 100% |
| Rottweil R 905ᴾ | <<locked>> | 100% | 52,431 psi | 84% | 2982 fps | 96.4% |
| Rottweil R 907 | <<locked>> | 92% | 54,273 psi | 87% | 2930 fps | 97.6% |
| Shooters World Long Rifle | <<locked>> | 94% | 55,898 psi | 90% | 2959 fps | 99.2% |
| Shooters World Match Rifle | <<locked>> | 84% | 56,086 psi | 90% | 2946 fps | 100% |
| Shooters World Precision | <<locked>> | 86% | 52,997 psi | 85% | 2897 fps | 100% |
| Shooters World SW4350 | <<locked>> | 94% | 53,650 psi | 86% | 2943 fps | 98.2% |
| SNPE Vectan SP 11 | <<locked>> | 90% | 56,405 psi | 90% | 3015 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 82% | 53,476 psi | 86% | 2913 fps | 99.3% |
| SNPE Vectan SP 9 | <<locked>> | 84% | 54,302 psi | 87% | 2940 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 84% | 55,738 psi | 89% | 2848 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 90% | 56,405 psi | 90% | 2848 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 94% | 56,043 psi | 90% | 2910 fps | 98.3% |
| SNPE Vectan Tubal 8000ᴾ | <<locked>> | 100% | 51,938 psi | 83% | 2976 fps | 96.3% |
| Somchem S335 | <<locked>> | 84% | 55,376 psi | 89% | 2848 fps | 100% |
| Somchem S341 | <<locked>> | 82% | 53,258 psi | 85% | 2907 fps | 99.9% |
| Somchem S355 | <<locked>> | 90% | 54,926 psi | 88% | 2953 fps | 100% |
| Somchem S365 | <<locked>> | 98% | 54,041 psi | 87% | 3025 fps | 100% |
| Somchem S385ᴾ | <<locked>> | 100% | 53,040 psi | 85% | 2956 fps | 97.3% |
| Vihtavuori N133 | <<locked>> | 84% | 56,101 psi | 90% | 2831 fps | 100% |
| Vihtavuori N135 | <<locked>> | 86% | 55,259 psi | 89% | 2877 fps | 100% |
| Vihtavuori N140 | <<locked>> | 86% | 55,651 psi | 89% | 2890 fps | 100% |
| Vihtavuori N150 | <<locked>> | 92% | 56,347 psi | 90% | 2930 fps | 100% |
| Vihtavuori N160 | <<locked>> | 94% | 54,244 psi | 87% | 2963 fps | 99.6% |
| Vihtavuori N530 | <<locked>> | 82% | 55,129 psi | 88% | 2917 fps | 100% |
| Vihtavuori N540 | <<locked>> | 86% | 54,143 psi | 87% | 2890 fps | 100% |
| Vihtavuori N550 | <<locked>> | 94% | 53,185 psi | 85% | 2963 fps | 99.5% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 49,371 psi | 79% | 2959 fps | 99.6% |
| Winchester 6.5 StaBALL | <<locked>> | 94% | 54,157 psi | 87% | 2936 fps | 100% |
| Winchester 748 | <<locked>> | 82% | 55,521 psi | 89% | 2966 fps | 100% |
| Winchester 760 | <<locked>> | 94% | 55,521 psi | 89% | 3031 fps | 98.4% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 39,856 psi | 64% | 2904 fps | 99.9% |
| Winchester StaBALL Match | <<locked>> | 84% | 54,476 psi | 87% | 2949 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 2495 | <<locked>> | 80% | 46,108 psi | 74% | 2740 fps | 100% |
| Accurate 2700 | <<locked>> | 80% | 44,657 psi | 72% | 2717 fps | 95.1% |
| Accurate 3100 | <<locked>> | 94% | 38,276 psi | 61% | 2677 fps | 95.2% |
| Accurate 4064 | <<locked>> | 80% | 43,598 psi | 70% | 2740 fps | 100% |
| Accurate 4350 | <<locked>> | 82% | 34,940 psi | 56% | 2621 fps | 95.9% |
| ADI AR 2206H | <<locked>> | 80% | 49,139 psi | 79% | 2861 fps | 99.8% |
| ADI AR 2208 | <<locked>> | 80% | 41,858 psi | 67% | 2703 fps | 98.4% |
| ADI AR 2209 | <<locked>> | 98% | 51,082 psi | 82% | 2953 fps | 95.7% |
| ADI Benchmark 8208 | <<locked>> | 80% | 51,242 psi | 82% | 2861 fps | 100% |
| Alliant AR-Comp | <<locked>> | 80% | 52,402 psi | 84% | 2841 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 45,310 psi | 73% | 2904 fps | 99.1% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 41,930 psi | 67% | 2730 fps | 99.5% |
| Alliant Reloder-15 | <<locked>> | 80% | 44,759 psi | 72% | 2795 fps | 99% |
| Alliant Reloder-16 | 44.7 gr | 80% | 32,460 psi | 52% | 2572 fps | 95% |
| Alliant Reloder-17 | <<locked>> | 80% | 36,448 psi | 58% | 2707 fps | 98.3% |
| Alliant Reloder-19 | <<locked>> | 98% | 50,154 psi | 80% | 2940 fps | 95.7% |
| Alliant Reloder-23 | <<locked>> | 88% | 30,298 psi | 49% | 2536 fps | 95.8% |
| Alliant Reloder-26 | <<locked>> | 90% | 35,201 psi | 56% | 2726 fps | 95.3% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 48,718 psi | 78% | 2867 fps | 99.3% |
| Bofors RP3 | <<locked>> | 80% | 41,785 psi | 67% | 2733 fps | 99.5% |
| Bofors RP7 | <<locked>> | 86% | 45,237 psi | 73% | 2766 fps | 95.5% |
| Hodgdon Benchmark | <<locked>> | 80% | 52,707 psi | 85% | 2844 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 80% | 50,734 psi | 81% | 2890 fps | 100% |
| Hodgdon H380 | <<locked>> | 80% | 42,409 psi | 68% | 2740 fps | 97.6% |
| Hodgdon H414 | <<locked>> | 86% | 42,598 psi | 68% | 2792 fps | 95.5% |
| Hodgdon H4350 | <<locked>> | 88% | 49,081 psi | 79% | 2877 fps | 95.7% |
| Hodgdon H4895 | <<locked>> | 80% | 49,676 psi | 80% | 2871 fps | 99.9% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 29,907 psi | 48% | 2470 fps | 95.9% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 46,151 psi | 74% | 2848 fps | 99.9% |
| Hodgdon Superformance | <<locked>> | 88% | 44,947 psi | 72% | 2867 fps | 95.6% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,847 psi | 43% | 1644 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 47,674 psi | 76% | 2822 fps | 99.8% |
| IMR 3031 | <<locked>> | 80% | 49,980 psi | 80% | 2861 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 44,005 psi | 71% | 2740 fps | 99% |
| IMR 4166 Enduron | <<locked>> | 80% | 46,412 psi | 74% | 2766 fps | 96.4% |
| IMR 4350 | <<locked>> | 90% | 45,571 psi | 73% | 2792 fps | 95.6% |
| IMR 4451 Enduron | <<locked>> | 84% | 44,034 psi | 71% | 2743 fps | 95.7% |
| IMR 4831 | <<locked>> | 82% | 33,794 psi | 54% | 2579 fps | 95.6% |
| IMR 4895 | <<locked>> | 80% | 45,905 psi | 74% | 2825 fps | 99.5% |
| IMR 8208 XBR | <<locked>> | 80% | 51,242 psi | 82% | 2861 fps | 100% |
| Lovex D073.6 | <<locked>> | 80% | 48,950 psi | 78% | 2838 fps | 100% |
| Lovex S060 | <<locked>> | 80% | 48,747 psi | 78% | 2792 fps | 99.8% |
| Lovex S062 | <<locked>> | 80% | 44,106 psi | 71% | 2743 fps | 99.8% |
| Lovex S065 | <<locked>> | 82% | 38,725 psi | 62% | 2635 fps | 95.7% |
| Lovex S070 | <<locked>> | 86% | 41,655 psi | 67% | 2717 fps | 95.4% |
| Norma 201 | <<locked>> | 80% | 48,109 psi | 77% | 2808 fps | 100% |
| Norma 202 | <<locked>> | 80% | 48,704 psi | 78% | 2812 fps | 100% |
| Norma 203B | <<locked>> | 80% | 44,150 psi | 71% | 2782 fps | 99.3% |
| Norma 204 | <<locked>> | 94% | 51,924 psi | 83% | 2949 fps | 95.8% |
| Norma MRP | <<locked>> | 96% | 43,279 psi | 69% | 2884 fps | 95.4% |
| Norma URP | <<locked>> | 82% | 35,070 psi | 56% | 2625 fps | 95.8% |
| Ramshot Big Game | <<locked>> | 80% | 44,048 psi | 71% | 2799 fps | 99.2% |
| Ramshot Hunter | 51 gr | 86% | 38,928 psi | 62% | 2720 fps | 95.2% |
| Ramshot TAC | <<locked>> | 80% | 51,256 psi | 82% | 2877 fps | 98.7% |
| Ramshot Wild Boar | <<locked>> | 80% | 51,242 psi | 82% | 2897 fps | 99.9% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,253 psi | 44% | 1683 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 42,772 psi | 69% | 2723 fps | 96.2% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 47,805 psi | 77% | 2910 fps | 99.4% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 38,783 psi | 62% | 2776 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 82% | 34,534 psi | 55% | 2635 fps | 95.4% |
| ReloadSwiss RS 70 | 51.4 gr | 84% | 36,738 psi | 59% | 2700 fps | 95.4% |
| Rottweil R 901 | <<locked>> | 80% | 52,199 psi | 84% | 2844 fps | 100% |
| Rottweil R 902 | <<locked>> | 80% | 45,963 psi | 74% | 2759 fps | 99.9% |
| Rottweil R 903 | <<locked>> | 80% | 39,320 psi | 63% | 2677 fps | 99% |
| Rottweil R 905 | <<locked>> | 98% | 48,834 psi | 78% | 2920 fps | 95.5% |
| Rottweil R 907 | <<locked>> | 86% | 45,237 psi | 73% | 2766 fps | 95.5% |
| Shooters World Long Rifle | <<locked>> | 82% | 38,725 psi | 62% | 2635 fps | 95.7% |
| Shooters World Match Rifle | <<locked>> | 80% | 48,950 psi | 78% | 2838 fps | 100% |
| Shooters World Precision | <<locked>> | 80% | 44,106 psi | 71% | 2743 fps | 99.8% |
| Shooters World SW4350 | <<locked>> | 86% | 41,655 psi | 67% | 2717 fps | 95.4% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 40,335 psi | 65% | 2730 fps | 98.6% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 49,995 psi | 80% | 2854 fps | 98.9% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 47,659 psi | 76% | 2828 fps | 99.6% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 49,139 psi | 79% | 2749 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 41,263 psi | 66% | 2612 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 86% | 43,178 psi | 69% | 2687 fps | 95.6% |
| SNPE Vectan Tubal 8000 | <<locked>> | 98% | 48,370 psi | 78% | 2910 fps | 95.4% |
| Somchem S335 | <<locked>> | 80% | 48,878 psi | 78% | 2749 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 49,545 psi | 79% | 2844 fps | 99.8% |
| Somchem S355 | <<locked>> | 80% | 39,914 psi | 64% | 2680 fps | 98.9% |
| Somchem S365 | <<locked>> | 80% | 29,443 psi | 47% | 2513 fps | 97.2% |
| Somchem S385 | <<locked>> | 94% | 43,714 psi | 70% | 2789 fps | 95.1% |
| Vihtavuori N133 | <<locked>> | 80% | 49,603 psi | 80% | 2740 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 45,672 psi | 73% | 2733 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 46,064 psi | 74% | 2743 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 38,043 psi | 61% | 2615 fps | 99.4% |
| Vihtavuori N160 | <<locked>> | 80% | 34,040 psi | 55% | 2566 fps | 95.4% |
| Vihtavuori N530 | <<locked>> | 80% | 51,517 psi | 83% | 2861 fps | 100% |
| Vihtavuori N540 | <<locked>> | 80% | 44,469 psi | 71% | 2733 fps | 100% |
| Vihtavuori N550 | <<locked>> | 82% | 35,955 psi | 58% | 2625 fps | 95.9% |
| Vihtavuori N555 | <<locked>> | 86% | 30,951 psi | 50% | 2559 fps | 95% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 33,634 psi | 54% | 2539 fps | 97.6% |
| Winchester 748 | <<locked>> | 80% | 51,938 psi | 83% | 2910 fps | 100% |
| Winchester 760 | <<locked>> | 86% | 42,598 psi | 68% | 2792 fps | 95.5% |
| Winchester StaBALL HD | <<locked>> | 90% | 28,718 psi | 46% | 2562 fps | 95.4% |
| Winchester StaBALL Match | <<locked>> | 80% | 47,427 psi | 76% | 2835 fps | 99.8% |
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 | 130gr | Norma Semi Soft Point. Alliant Power Pro 2000-MR delivers the highest muzzle velocity at 3,097 fps; across all powders the maximum-charge window runs from 1,834 fps to 3,097 fps. Accurate 3100 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 130.0 gr projectile in 0.277" calls for a 1:13.0 twist; slower twists will usually not stabilise this weight. Accurate 3100, ADI AR 2209, Alliant Reloder-19 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-16, ReloadSwiss RS 70, Ramshot Hunter rank at the top here: for .270 Win. 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.