Load Specifications
Load data in caliber .270 Win. with .277 | 130gr | Hornady SST bullet and 95 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are ReloadSwiss RS 70, Alliant Reloder-17 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.
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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 2015 | <<locked>> | 82% | 53,824 psi | 86% | 2808 fps | 100% |
| Accurate 2495 | <<locked>> | 88% | 56,188 psi | 90% | 2877 fps | 100% |
| Accurate 2520 | <<locked>> | 82% | 54,099 psi | 87% | 2894 fps | 100% |
| Accurate 2700 | <<locked>> | 88% | 54,984 psi | 88% | 2877 fps | 97% |
| Accurate 3100ᴾ | <<locked>> | 100% | 43,439 psi | 70% | 2772 fps | 96.4% |
| Accurate 4064 | <<locked>> | 90% | 56,347 psi | 90% | 2930 fps | 100% |
| Accurate 4350 | <<locked>> | 96% | 52,678 psi | 84% | 2959 fps | 99.4% |
| ADI AR 2206H | <<locked>> | 86% | 56,405 psi | 90% | 2959 fps | 100% |
| ADI AR 2208 | <<locked>> | 90% | 53,954 psi | 87% | 2907 fps | 99.7% |
| ADI Benchmark 8208 | <<locked>> | 84% | 55,259 psi | 89% | 2907 fps | 100% |
| Alliant AR-Comp | <<locked>> | 84% | 56,362 psi | 90% | 2881 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 88% | 56,333 psi | 90% | 3084 fps | 99.9% |
| Alliant Reloder- TS 15.5 | <<locked>> | 90% | 54,288 psi | 87% | 2933 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 88% | 54,752 psi | 88% | 2953 fps | 99.8% |
| Alliant Reloder-16 | <<locked>> | 98% | 53,824 psi | 86% | 3022 fps | 99.8% |
| Alliant Reloder-17 | <<locked>> | 94% | 55,027 psi | 88% | 3054 fps | 100% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 41,234 psi | 66% | 2802 fps | 99.1% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 46,282 psi | 74% | 2972 fps | 98.5% |
| Baschieri & Pellagri 107 | <<locked>> | 86% | 56,217 psi | 90% | 2976 fps | 99.8% |
| Bofors RP3 | <<locked>> | 90% | 54,868 psi | 88% | 2949 fps | 100% |
| Bofors RP7 | <<locked>> | 94% | 54,839 psi | 88% | 2917 fps | 97.2% |
| Hodgdon Benchmark | <<locked>> | 82% | 53,388 psi | 86% | 2838 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 84% | 54,926 psi | 88% | 2940 fps | 100% |
| Hodgdon H380 | <<locked>> | 90% | 55,608 psi | 89% | 2959 fps | 99.4% |
| Hodgdon H414 | <<locked>> | 96% | 55,564 psi | 89% | 3015 fps | 98% |
| Hodgdon H4350 | <<locked>> | 94% | 56,028 psi | 90% | 2976 fps | 96.8% |
| Hodgdon H4895 | <<locked>> | 84% | 53,490 psi | 86% | 2917 fps | 100% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 53,635 psi | 86% | 2943 fps | 100% |
| Hodgdon LEVERevolution | <<locked>> | 86% | 53,113 psi | 85% | 2949 fps | 100% |
| Hodgdon Superformance | <<locked>> | 96% | 56,246 psi | 90% | 3054 fps | 97.8% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,795 psi | 57% | 1811 fps | 100% |
| Hodgdon VARGET | <<locked>> | 86% | 54,534 psi | 87% | 2917 fps | 100% |
| IMR 3031 | <<locked>> | 84% | 53,664 psi | 86% | 2904 fps | 100% |
| IMR 4064 | <<locked>> | 88% | 53,606 psi | 86% | 2894 fps | 99.8% |
| IMR 4166 Enduron | <<locked>> | 86% | 53,171 psi | 85% | 2864 fps | 97.5% |
| IMR 4350 | <<locked>> | 98% | 55,158 psi | 88% | 2943 fps | 97.4% |
| IMR 4451 Enduron | <<locked>> | 92% | 53,171 psi | 85% | 2894 fps | 97.4% |
| IMR 4831 | <<locked>> | 98% | 53,084 psi | 85% | 2949 fps | 99.5% |
| IMR 4895 | <<locked>> | 88% | 56,173 psi | 90% | 2986 fps | 100% |
| IMR 8208 XBR | <<locked>> | 84% | 55,259 psi | 89% | 2907 fps | 100% |
| Lovex D073.6 | <<locked>> | 86% | 56,405 psi | 90% | 2936 fps | 100% |
| Lovex S060 | <<locked>> | 86% | 55,651 psi | 89% | 2884 fps | 100% |
| Lovex S062 | <<locked>> | 88% | 53,534 psi | 86% | 2890 fps | 100% |
| Lovex S065 | <<locked>> | 96% | 56,188 psi | 90% | 2943 fps | 99% |
| Lovex S070 | <<locked>> | 96% | 53,577 psi | 86% | 2923 fps | 97.8% |
| Norma 201 | <<locked>> | 86% | 55,187 psi | 88% | 2904 fps | 100% |
| Norma 202 | <<locked>> | 86% | 55,593 psi | 89% | 2904 fps | 100% |
| Norma 203B | <<locked>> | 88% | 53,969 psi | 87% | 2940 fps | 99.9% |
| Norma 204 | <<locked>> | 98% | 55,796 psi | 89% | 2992 fps | 96.2% |
| Norma URP | <<locked>> | 98% | 55,187 psi | 88% | 3002 fps | 99.6% |
| Ramshot Big Game | <<locked>> | 88% | 54,505 psi | 87% | 2963 fps | 99.9% |
| Ramshot Hunter | <<locked>> | 98% | 54,012 psi | 87% | 2995 fps | 98.5% |
| Ramshot TAC | <<locked>> | 84% | 55,651 psi | 89% | 2930 fps | 99% |
| Ramshot Wild Boar | <<locked>> | 84% | 55,230 psi | 89% | 2943 fps | 100% |
| Ramshot X-Terminator | <<locked>> | 82% | 56,043 psi | 90% | 2910 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 36,158 psi | 58% | 1850 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 90% | 55,840 psi | 90% | 2940 fps | 98.4% |
| ReloadSwiss RS 52 | <<locked>> | 86% | 55,143 psi | 88% | 3018 fps | 99.8% |
| ReloadSwiss RS 60 | <<locked>> | 92% | 54,868 psi | 88% | 3058 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 98% | 56,057 psi | 90% | 3038 fps | 99.6% |
| ReloadSwiss RS 70 | <<locked>> | 98% | 55,651 psi | 89% | 3071 fps | 99.5% |
| Rottweil R 901 | <<locked>> | 84% | 55,941 psi | 90% | 2884 fps | 100% |
| Rottweil R 902 | <<locked>> | 88% | 55,782 psi | 89% | 2904 fps | 100% |
| Rottweil R 903 | <<locked>> | 92% | 54,737 psi | 88% | 2940 fps | 100% |
| Rottweil R 907 | <<locked>> | 94% | 54,839 psi | 88% | 2917 fps | 97.2% |
| Shooters World Long Rifle | <<locked>> | 96% | 56,188 psi | 90% | 2943 fps | 99% |
| Shooters World Match Rifle | <<locked>> | 86% | 56,405 psi | 90% | 2936 fps | 100% |
| Shooters World Precision | <<locked>> | 88% | 53,534 psi | 86% | 2890 fps | 100% |
| Shooters World SW4350 | <<locked>> | 96% | 53,577 psi | 86% | 2923 fps | 97.8% |
| SNPE Vectan SP 11 | <<locked>> | 90% | 52,750 psi | 85% | 2946 fps | 99.9% |
| SNPE Vectan SP 7 | <<locked>> | 84% | 54,012 psi | 87% | 2904 fps | 99.2% |
| SNPE Vectan SP 9 | <<locked>> | 86% | 54,795 psi | 88% | 2930 fps | 99.9% |
| SNPE Vectan Tubal 3000 | <<locked>> | 84% | 53,011 psi | 85% | 2792 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 90% | 53,447 psi | 86% | 2792 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 96% | 56,347 psi | 90% | 2894 fps | 98% |
| Somchem S335 | <<locked>> | 86% | 55,970 psi | 90% | 2838 fps | 100% |
| Somchem S341 | <<locked>> | 84% | 53,795 psi | 86% | 2897 fps | 99.9% |
| Somchem S355 | <<locked>> | 92% | 55,114 psi | 88% | 2940 fps | 100% |
| Somchem S365ᴾ | <<locked>> | 100% | 53,461 psi | 86% | 3005 fps | 100% |
| Somchem S385ᴾ | <<locked>> | 100% | 49,632 psi | 80% | 2884 fps | 96.2% |
| Vihtavuori N130 | <<locked>> | 82% | 56,130 psi | 90% | 2799 fps | 100% |
| Vihtavuori N133 | <<locked>> | 84% | 53,345 psi | 86% | 2776 fps | 100% |
| Vihtavuori N135 | <<locked>> | 88% | 55,608 psi | 89% | 2867 fps | 100% |
| Vihtavuori N140 | <<locked>> | 88% | 56,391 psi | 90% | 2884 fps | 100% |
| Vihtavuori N150 | <<locked>> | 92% | 52,939 psi | 85% | 2864 fps | 100% |
| Vihtavuori N160 | <<locked>> | 96% | 54,143 psi | 87% | 2946 fps | 99.5% |
| Vihtavuori N530 | <<locked>> | 84% | 55,811 psi | 89% | 2910 fps | 100% |
| Vihtavuori N540 | <<locked>> | 88% | 54,404 psi | 87% | 2877 fps | 100% |
| Vihtavuori N550 | <<locked>> | 96% | 53,142 psi | 85% | 2946 fps | 99.3% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 45,455 psi | 73% | 2881 fps | 99% |
| Winchester 6.5 StaBALL | <<locked>> | 96% | 54,447 psi | 87% | 2923 fps | 100% |
| Winchester 748 | <<locked>> | 84% | 55,825 psi | 90% | 2956 fps | 100% |
| Winchester 760 | <<locked>> | 96% | 55,564 psi | 89% | 3015 fps | 98% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 36,883 psi | 59% | 2805 fps | 99.1% |
| Winchester StaBALL Match | <<locked>> | 86% | 54,708 psi | 88% | 2936 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% | 50,734 psi | 81% | 2762 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 43,424 psi | 70% | 2684 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 50,662 psi | 81% | 2841 fps | 100% |
| Accurate 2700 | <<locked>> | 84% | 48,428 psi | 78% | 2766 fps | 95.6% |
| Accurate 3100 | <<locked>> | 98% | 40,495 psi | 65% | 2713 fps | 95.5% |
| Accurate 4064 | <<locked>> | 80% | 41,075 psi | 66% | 2680 fps | 100% |
| Accurate 4350 | <<locked>> | 84% | 34,751 psi | 56% | 2608 fps | 95.5% |
| ADI AR 2206H | <<locked>> | 80% | 46,601 psi | 75% | 2795 fps | 99.4% |
| ADI AR 2208 | <<locked>> | 80% | 39,769 psi | 64% | 2644 fps | 97.7% |
| ADI Benchmark 8208 | <<locked>> | 80% | 48,646 psi | 78% | 2802 fps | 99.9% |
| Alliant AR-Comp | <<locked>> | 80% | 49,385 psi | 79% | 2785 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 42,757 psi | 69% | 2835 fps | 98.3% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 39,436 psi | 63% | 2664 fps | 98.9% |
| Alliant Reloder-15 | <<locked>> | 80% | 42,235 psi | 68% | 2730 fps | 98.4% |
| Alliant Reloder-16 | <<locked>> | 84% | 34,737 psi | 56% | 2618 fps | 95.5% |
| Alliant Reloder-17 | 45.5 gr | 80% | 34,272 psi | 55% | 2635 fps | 97.2% |
| Alliant Reloder-23 | <<locked>> | 90% | 30,211 psi | 48% | 2520 fps | 95.3% |
| Alliant Reloder-26 | <<locked>> | 94% | 37,347 psi | 60% | 2766 fps | 95.8% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 45,934 psi | 74% | 2799 fps | 98.6% |
| Bofors RP3 | <<locked>> | 80% | 39,291 psi | 63% | 2671 fps | 98.9% |
| Bofors RP7 | <<locked>> | 88% | 45,455 psi | 73% | 2749 fps | 95.1% |
| Hodgdon Benchmark | <<locked>> | 80% | 50,430 psi | 81% | 2792 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 80% | 48,008 psi | 77% | 2828 fps | 100% |
| Hodgdon H380 | <<locked>> | 80% | 40,059 psi | 64% | 2674 fps | 96.6% |
| Hodgdon H414 | <<locked>> | 88% | 42,453 psi | 68% | 2776 fps | 95% |
| Hodgdon H4350 | <<locked>> | 90% | 49,284 psi | 79% | 2861 fps | 95.3% |
| Hodgdon H4895 | <<locked>> | 80% | 47,036 psi | 75% | 2808 fps | 99.7% |
| Hodgdon Hybrid 100V | <<locked>> | 82% | 30,052 psi | 48% | 2461 fps | 95.5% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 43,352 psi | 70% | 2782 fps | 99.5% |
| Hodgdon Superformance | 54.1 gr | 90% | 45,368 psi | 73% | 2854 fps | 95.2% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,571 psi | 43% | 1617 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 45,165 psi | 72% | 2759 fps | 99.5% |
| IMR 3031 | <<locked>> | 80% | 47,108 psi | 76% | 2802 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 41,771 psi | 67% | 2680 fps | 98.3% |
| IMR 4166 Enduron | <<locked>> | 80% | 44,208 psi | 71% | 2700 fps | 95.4% |
| IMR 4350 | <<locked>> | 92% | 45,818 psi | 73% | 2779 fps | 95.2% |
| IMR 4451 Enduron | <<locked>> | 86% | 44,251 psi | 71% | 2726 fps | 95.3% |
| IMR 4831 | <<locked>> | 84% | 33,634 psi | 54% | 2562 fps | 95.1% |
| IMR 4895 | <<locked>> | 80% | 43,294 psi | 69% | 2762 fps | 99% |
| IMR 8208 XBR | <<locked>> | 80% | 48,646 psi | 78% | 2802 fps | 99.9% |
| Lovex D073.6 | <<locked>> | 80% | 46,253 psi | 74% | 2779 fps | 100% |
| Lovex S060 | <<locked>> | 80% | 46,543 psi | 75% | 2733 fps | 99.4% |
| Lovex S062 | <<locked>> | 80% | 41,785 psi | 67% | 2684 fps | 99.5% |
| Lovex S065 | <<locked>> | 84% | 38,798 psi | 62% | 2621 fps | 95.3% |
| Lovex S070 | <<locked>> | 88% | 41,959 psi | 67% | 2707 fps | 95% |
| Norma 201 | <<locked>> | 80% | 45,730 psi | 73% | 2746 fps | 99.8% |
| Norma 202 | <<locked>> | 80% | 46,006 psi | 74% | 2753 fps | 100% |
| Norma 203B | <<locked>> | 80% | 41,640 psi | 67% | 2717 fps | 98.7% |
| Norma 204 | <<locked>> | 96% | 52,199 psi | 84% | 2933 fps | 95.4% |
| Norma URP | <<locked>> | 84% | 34,925 psi | 56% | 2608 fps | 95.4% |
| Ramshot Big Game | <<locked>> | 80% | 41,481 psi | 67% | 2733 fps | 98.5% |
| Ramshot Hunter | <<locked>> | 90% | 41,423 psi | 66% | 2759 fps | 95.6% |
| Ramshot TAC | <<locked>> | 80% | 48,631 psi | 78% | 2812 fps | 98% |
| Ramshot Wild Boar | <<locked>> | 80% | 48,385 psi | 78% | 2835 fps | 99.5% |
| Ramshot X-Terminator | <<locked>> | 80% | 52,678 psi | 84% | 2858 fps | 99.8% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 26,977 psi | 43% | 1657 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 40,422 psi | 65% | 2657 fps | 95% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 45,020 psi | 72% | 2844 fps | 98.8% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 36,463 psi | 58% | 2703 fps | 99.7% |
| ReloadSwiss RS 62 | <<locked>> | 84% | 34,519 psi | 55% | 2621 fps | 95% |
| ReloadSwiss RS 70 | 50.8 gr | 88% | 39,450 psi | 63% | 2753 fps | 96% |
| Rottweil R 901 | <<locked>> | 80% | 49,821 psi | 80% | 2789 fps | 100% |
| Rottweil R 902 | <<locked>> | 80% | 43,598 psi | 70% | 2700 fps | 99.6% |
| Rottweil R 903 | <<locked>> | 80% | 37,043 psi | 59% | 2615 fps | 98.2% |
| Rottweil R 907 | <<locked>> | 88% | 45,455 psi | 73% | 2749 fps | 95.1% |
| Shooters World Long Rifle | <<locked>> | 84% | 38,798 psi | 62% | 2621 fps | 95.3% |
| Shooters World Match Rifle | <<locked>> | 80% | 46,253 psi | 74% | 2779 fps | 100% |
| Shooters World Precision | <<locked>> | 80% | 41,785 psi | 67% | 2684 fps | 99.5% |
| Shooters World SW4350 | <<locked>> | 88% | 41,959 psi | 67% | 2707 fps | 95% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 38,000 psi | 61% | 2664 fps | 97.8% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 47,181 psi | 76% | 2789 fps | 98.2% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 45,295 psi | 73% | 2766 fps | 99.2% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 47,007 psi | 75% | 2697 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 39,247 psi | 63% | 2559 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 88% | 43,555 psi | 70% | 2674 fps | 95.3% |
| Somchem S335 | <<locked>> | 80% | 46,630 psi | 75% | 2697 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 46,789 psi | 75% | 2782 fps | 99.3% |
| Somchem S355 | <<locked>> | 80% | 37,710 psi | 60% | 2618 fps | 98.2% |
| Somchem S365 | <<locked>> | 80% | 27,485 psi | 44% | 2441 fps | 95.8% |
| Somchem S385 | <<locked>> | 98% | 46,470 psi | 75% | 2825 fps | 95.4% |
| Vihtavuori N130 | <<locked>> | 80% | 52,895 psi | 85% | 2756 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 47,369 psi | 76% | 2690 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 43,221 psi | 69% | 2680 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 43,772 psi | 70% | 2687 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 35,955 psi | 58% | 2552 fps | 98.9% |
| Vihtavuori N160 | <<locked>> | 82% | 34,098 psi | 55% | 2552 fps | 95% |
| Vihtavuori N530 | <<locked>> | 80% | 48,907 psi | 78% | 2799 fps | 100% |
| Vihtavuori N540 | <<locked>> | 80% | 42,148 psi | 68% | 2677 fps | 100% |
| Vihtavuori N550 | <<locked>> | 84% | 35,955 psi | 58% | 2612 fps | 95.5% |
| Vihtavuori N555 | <<locked>> | 90% | 32,663 psi | 52% | 2598 fps | 95.4% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 31,691 psi | 51% | 2470 fps | 96.4% |
| Winchester 748 | <<locked>> | 80% | 48,950 psi | 78% | 2848 fps | 100% |
| Winchester 760 | <<locked>> | 88% | 42,699 psi | 68% | 2779 fps | 95% |
| Winchester StaBALL HD | <<locked>> | 94% | 30,458 psi | 49% | 2605 fps | 96% |
| Winchester StaBALL Match | <<locked>> | 80% | 44,788 psi | 72% | 2769 fps | 99.5% |
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 95 powders for .270 Win. loaded with the .277 | 130gr | Hornady SST. Alliant Power Pro 2000-MR delivers the highest muzzle velocity at 3,084 fps; across all powders the maximum-charge window runs from 1,811 fps to 3,084 fps. Accurate 3100 gives the best case fill at 100 %, and 95 of the 95 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 1:10.0 twist; slower twists will usually not stabilise this weight. Accurate 3100, 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. ReloadSwiss RS 70, Alliant Reloder-17, Hodgdon Superformance rank at the top here: for .270 Win. with the .277 | 130gr | Hornady SST 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.