Load Specifications
Load data in caliber .270 Win. with .277 | 120gr | Barnes Solid bullet and 94 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 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>> | 84% | 54,839 psi | 88% | 2936 fps | 100% |
| Accurate 2495 | <<locked>> | 88% | 53,374 psi | 86% | 2953 fps | 100% |
| Accurate 2520 | <<locked>> | 84% | 55,245 psi | 89% | 3025 fps | 100% |
| Accurate 2700 | <<locked>> | 90% | 56,260 psi | 90% | 2999 fps | 96.4% |
| Accurate 4064 | <<locked>> | 90% | 53,447 psi | 86% | 3002 fps | 100% |
| Accurate 4350 | <<locked>> | 98% | 53,301 psi | 85% | 3077 fps | 99% |
| ADI AR 2206H | <<locked>> | 86% | 53,954 psi | 87% | 3035 fps | 99.7% |
| ADI AR 2208 | <<locked>> | 92% | 54,984 psi | 88% | 3031 fps | 99.5% |
| ADI Benchmark 8208 | <<locked>> | 86% | 56,405 psi | 90% | 3038 fps | 100% |
| Alliant AR-Comp | <<locked>> | 84% | 53,693 psi | 86% | 2966 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 88% | 53,403 psi | 86% | 3146 fps | 99.4% |
| Alliant Reloder- TS 15.5 | <<locked>> | 92% | 55,085 psi | 88% | 3058 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 90% | 55,593 psi | 89% | 3077 fps | 99.6% |
| Alliant Reloder-16ᴾ | <<locked>> | 100% | 54,360 psi | 87% | 3136 fps | 99.4% |
| Alliant Reloder-17 | <<locked>> | 96% | 55,724 psi | 89% | 3179 fps | 100% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 39,059 psi | 63% | 2848 fps | 97.9% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 43,700 psi | 70% | 3009 fps | 97% |
| Baschieri & Pellagri 107 | <<locked>> | 86% | 53,809 psi | 86% | 3045 fps | 99.2% |
| Bofors RP3 | <<locked>> | 92% | 55,506 psi | 89% | 3068 fps | 100% |
| Bofors RP7 | <<locked>> | 96% | 55,724 psi | 89% | 3035 fps | 96.6% |
| Hodgdon Benchmark | <<locked>> | 84% | 54,694 psi | 88% | 2969 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 86% | 55,999 psi | 90% | 3071 fps | 100% |
| Hodgdon CFE223 | <<locked>> | 82% | 53,867 psi | 86% | 3107 fps | 99.5% |
| Hodgdon H380 | <<locked>> | 90% | 53,214 psi | 85% | 3028 fps | 98.6% |
| Hodgdon H414 | <<locked>> | 98% | 56,275 psi | 90% | 3130 fps | 97.4% |
| Hodgdon H4895 | <<locked>> | 86% | 54,534 psi | 87% | 3045 fps | 99.9% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 50,792 psi | 81% | 3009 fps | 99.7% |
| Hodgdon LEVERevolution | <<locked>> | 88% | 53,737 psi | 86% | 3074 fps | 100% |
| Hodgdon Superformance | <<locked>> | 96% | 53,272 psi | 85% | 3100 fps | 96.3% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,433 psi | 57% | 1883 fps | 100% |
| Hodgdon VARGET | <<locked>> | 88% | 55,637 psi | 89% | 3045 fps | 99.9% |
| IMR 3031 | <<locked>> | 86% | 54,360 psi | 87% | 3031 fps | 100% |
| IMR 4064 | <<locked>> | 90% | 54,331 psi | 87% | 3012 fps | 99.5% |
| IMR 4166 Enduron | <<locked>> | 88% | 54,607 psi | 88% | 2989 fps | 96.9% |
| IMR 4350ᴾ | <<locked>> | 100% | 56,072 psi | 90% | 3058 fps | 96.7% |
| IMR 4451 Enduron | <<locked>> | 94% | 54,331 psi | 87% | 3012 fps | 96.8% |
| IMR 4831ᴾ | <<locked>> | 100% | 53,795 psi | 86% | 3068 fps | 99.2% |
| IMR 4895 | <<locked>> | 88% | 53,505 psi | 86% | 3054 fps | 99.7% |
| IMR 8208 XBR | <<locked>> | 86% | 56,405 psi | 90% | 3038 fps | 100% |
| Lovex D073.6 | <<locked>> | 86% | 53,548 psi | 86% | 3009 fps | 100% |
| Lovex S060 | <<locked>> | 86% | 53,505 psi | 86% | 2959 fps | 99.7% |
| Lovex S062 | <<locked>> | 90% | 54,172 psi | 87% | 3009 fps | 100% |
| Lovex S065 | <<locked>> | 96% | 53,476 psi | 86% | 3005 fps | 98% |
| Lovex S070 | <<locked>> | 98% | 54,520 psi | 87% | 3038 fps | 97.2% |
| Norma 201 | <<locked>> | 88% | 55,999 psi | 90% | 3028 fps | 100% |
| Norma 202 | <<locked>> | 86% | 53,171 psi | 85% | 2982 fps | 100% |
| Norma 203B | <<locked>> | 90% | 54,795 psi | 88% | 3064 fps | 99.8% |
| Norma URPᴾ | <<locked>> | 100% | 55,985 psi | 90% | 3123 fps | 99.3% |
| Ramshot Big Game | <<locked>> | 90% | 55,376 psi | 89% | 3087 fps | 99.8% |
| Ramshot Hunterᴾ | <<locked>> | 100% | 54,911 psi | 88% | 3117 fps | 98% |
| Ramshot TAC | <<locked>> | 84% | 53,229 psi | 85% | 2992 fps | 98.1% |
| Ramshot Wild Boar | <<locked>> | 86% | 56,376 psi | 90% | 3074 fps | 99.8% |
| Ramshot X-Terminator | <<locked>> | 82% | 53,722 psi | 86% | 2979 fps | 99.6% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 35,752 psi | 57% | 1926 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 82% | 55,854 psi | 90% | 3018 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 90% | 53,490 psi | 86% | 3005 fps | 97.4% |
| ReloadSwiss RS 52 | <<locked>> | 88% | 56,130 psi | 90% | 3150 fps | 99.6% |
| ReloadSwiss RS 60 | <<locked>> | 94% | 55,622 psi | 89% | 3182 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 98% | 52,765 psi | 85% | 3094 fps | 98.8% |
| ReloadSwiss RS 70ᴾ | <<locked>> | 100% | 56,347 psi | 90% | 3186 fps | 99.1% |
| Rottweil R 901 | <<locked>> | 84% | 53,737 psi | 86% | 2966 fps | 100% |
| Rottweil R 902 | <<locked>> | 88% | 53,374 psi | 86% | 2979 fps | 100% |
| Rottweil R 903 | <<locked>> | 94% | 55,361 psi | 89% | 3058 fps | 100% |
| Rottweil R 907 | <<locked>> | 96% | 55,724 psi | 89% | 3035 fps | 96.6% |
| Shooters World Long Rifle | <<locked>> | 96% | 53,476 psi | 86% | 3005 fps | 98% |
| Shooters World Match Rifle | <<locked>> | 86% | 53,548 psi | 86% | 3009 fps | 100% |
| Shooters World Precision | <<locked>> | 90% | 54,172 psi | 87% | 3009 fps | 100% |
| Shooters World SW4350 | <<locked>> | 98% | 54,520 psi | 87% | 3038 fps | 97.2% |
| SNPE Vectan SP 11 | <<locked>> | 92% | 53,606 psi | 86% | 3068 fps | 99.7% |
| SNPE Vectan SP 7 | <<locked>> | 86% | 55,187 psi | 88% | 3028 fps | 98.8% |
| SNPE Vectan SP 9 | <<locked>> | 88% | 55,999 psi | 90% | 3058 fps | 99.8% |
| SNPE Vectan Tubal 3000 | <<locked>> | 86% | 54,157 psi | 87% | 2920 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 92% | 54,288 psi | 87% | 2917 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 96% | 53,940 psi | 86% | 2956 fps | 96.8% |
| Somchem S321 | <<locked>> | 82% | 54,070 psi | 87% | 3015 fps | 100% |
| Somchem S335 | <<locked>> | 86% | 53,766 psi | 86% | 2920 fps | 100% |
| Somchem S341 | <<locked>> | 86% | 54,911 psi | 88% | 3022 fps | 99.7% |
| Somchem S355 | <<locked>> | 94% | 55,883 psi | 90% | 3061 fps | 99.9% |
| Somchem S365ᴾ | <<locked>> | 100% | 50,299 psi | 81% | 3071 fps | 100% |
| Vihtavuori N130 | <<locked>> | 82% | 53,809 psi | 86% | 2881 fps | 100% |
| Vihtavuori N133 | <<locked>> | 86% | 54,389 psi | 87% | 2904 fps | 100% |
| Vihtavuori N135 | <<locked>> | 90% | 56,260 psi | 90% | 2992 fps | 100% |
| Vihtavuori N140 | <<locked>> | 88% | 53,853 psi | 86% | 2963 fps | 100% |
| Vihtavuori N150 | <<locked>> | 94% | 53,664 psi | 86% | 2986 fps | 100% |
| Vihtavuori N160 | <<locked>> | 98% | 54,984 psi | 88% | 3064 fps | 99.1% |
| Vihtavuori N530 | <<locked>> | 84% | 53,374 psi | 86% | 2982 fps | 100% |
| Vihtavuori N540 | <<locked>> | 90% | 55,564 psi | 89% | 3009 fps | 100% |
| Vihtavuori N550 | <<locked>> | 98% | 53,809 psi | 86% | 3064 fps | 98.9% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 42,656 psi | 68% | 2930 fps | 97.8% |
| Winchester 6.5 StaBALL | <<locked>> | 98% | 55,506 psi | 89% | 3045 fps | 100% |
| Winchester 748 | <<locked>> | 84% | 53,098 psi | 85% | 3028 fps | 100% |
| Winchester 760 | <<locked>> | 98% | 56,275 psi | 90% | 3130 fps | 97.4% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 35,041 psi | 56% | 2831 fps | 97.3% |
| Winchester StaBALL Match | <<locked>> | 88% | 55,811 psi | 89% | 3064 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% | 48,414 psi | 78% | 2838 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 41,017 psi | 66% | 2749 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 48,211 psi | 77% | 2910 fps | 100% |
| Accurate 2700 | <<locked>> | 88% | 52,794 psi | 85% | 2940 fps | 95.7% |
| Accurate 4064 | <<locked>> | 80% | 38,798 psi | 62% | 2740 fps | 99.9% |
| Accurate 4350 | <<locked>> | 88% | 37,565 psi | 60% | 2769 fps | 95.5% |
| ADI AR 2206H | <<locked>> | 80% | 44,614 psi | 72% | 2861 fps | 98.6% |
| ADI AR 2208 | <<locked>> | 80% | 37,913 psi | 61% | 2697 fps | 96.3% |
| ADI Benchmark 8208 | <<locked>> | 80% | 46,688 psi | 75% | 2874 fps | 99.6% |
| Alliant AR-Comp | <<locked>> | 80% | 47,050 psi | 75% | 2867 fps | 100% |
| Alliant Power Pro 2000-MR | 46.8 gr | 80% | 40,640 psi | 65% | 2884 fps | 96.9% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 37,579 psi | 60% | 2723 fps | 97.8% |
| Alliant Reloder-15 | <<locked>> | 80% | 40,350 psi | 65% | 2789 fps | 97.2% |
| Alliant Reloder-16 | <<locked>> | 88% | 37,405 psi | 60% | 2779 fps | 95.5% |
| Alliant Reloder-17 | 46 gr | 80% | 32,329 psi | 52% | 2671 fps | 95.3% |
| Alliant Reloder-23 | <<locked>> | 94% | 32,474 psi | 52% | 2671 fps | 95.2% |
| Alliant Reloder-26 | <<locked>> | 98% | 40,640 psi | 65% | 2940 fps | 95.9% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 43,758 psi | 70% | 2858 fps | 97.5% |
| Bofors RP3 | <<locked>> | 80% | 37,275 psi | 60% | 2723 fps | 97.8% |
| Bofors RP7 | <<locked>> | 92% | 49,037 psi | 79% | 2917 fps | 95.1% |
| Hodgdon Benchmark | <<locked>> | 80% | 48,283 psi | 77% | 2861 fps | 99.9% |
| Hodgdon BL-C2 | <<locked>> | 80% | 45,716 psi | 73% | 2897 fps | 99.7% |
| Hodgdon CFE223 | <<locked>> | 80% | 50,473 psi | 81% | 3048 fps | 99.1% |
| Hodgdon H380 | <<locked>> | 80% | 37,913 psi | 61% | 2720 fps | 95% |
| Hodgdon H414 | <<locked>> | 92% | 45,977 psi | 74% | 2946 fps | 95% |
| Hodgdon H4895 | <<locked>> | 80% | 45,020 psi | 72% | 2874 fps | 99% |
| Hodgdon Hybrid 100V | <<locked>> | 86% | 32,227 psi | 52% | 2612 fps | 95.4% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 40,901 psi | 66% | 2835 fps | 98.7% |
| Hodgdon Superformance | <<locked>> | 94% | 49,574 psi | 79% | 3035 fps | 95.4% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,368 psi | 42% | 1683 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 43,047 psi | 69% | 2818 fps | 98.7% |
| IMR 3031 | <<locked>> | 80% | 44,585 psi | 71% | 2874 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 39,798 psi | 64% | 2736 fps | 97.1% |
| IMR 4166 Enduron | <<locked>> | 84% | 47,935 psi | 77% | 2871 fps | 95.4% |
| IMR 4350 | <<locked>> | 96% | 49,385 psi | 79% | 2943 fps | 95.2% |
| IMR 4451 Enduron | <<locked>> | 90% | 48,008 psi | 77% | 2900 fps | 95.4% |
| IMR 4831 | <<locked>> | 88% | 36,274 psi | 58% | 2723 fps | 95.2% |
| IMR 4895 | <<locked>> | 80% | 41,321 psi | 66% | 2822 fps | 98% |
| IMR 8208 XBR | <<locked>> | 80% | 46,688 psi | 75% | 2874 fps | 99.6% |
| Lovex D073.6 | <<locked>> | 80% | 43,700 psi | 70% | 2841 fps | 99.9% |
| Lovex S060 | <<locked>> | 80% | 44,585 psi | 71% | 2795 fps | 98.6% |
| Lovex S062 | <<locked>> | 80% | 39,755 psi | 64% | 2743 fps | 98.7% |
| Lovex S065 | <<locked>> | 88% | 41,814 psi | 67% | 2782 fps | 95.3% |
| Lovex S070 | <<locked>> | 92% | 45,005 psi | 72% | 2867 fps | 95% |
| Norma 201 | <<locked>> | 80% | 43,598 psi | 70% | 2812 fps | 99.3% |
| Norma 202 | <<locked>> | 80% | 44,034 psi | 71% | 2825 fps | 100% |
| Norma 203B | <<locked>> | 80% | 39,711 psi | 64% | 2776 fps | 97.5% |
| Norma URP | <<locked>> | 88% | 37,797 psi | 61% | 2772 fps | 95.5% |
| Ramshot Big Game | <<locked>> | 80% | 39,349 psi | 63% | 2789 fps | 97.3% |
| Ramshot Hunter | <<locked>> | 94% | 45,034 psi | 72% | 2933 fps | 95.7% |
| Ramshot TAC | <<locked>> | 80% | 46,557 psi | 75% | 2871 fps | 96.8% |
| Ramshot Wild Boar | <<locked>> | 80% | 46,122 psi | 74% | 2897 fps | 98.8% |
| Ramshot X-Terminator | <<locked>> | 80% | 50,546 psi | 81% | 2927 fps | 99.3% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 26,731 psi | 43% | 1726 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 52,446 psi | 84% | 2966 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 84% | 43,758 psi | 70% | 2822 fps | 95% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 42,308 psi | 68% | 2894 fps | 97.6% |
| ReloadSwiss RS 60 | 46 gr | 80% | 34,432 psi | 55% | 2746 fps | 98.6% |
| ReloadSwiss RS 62 | <<locked>> | 88% | 37,289 psi | 60% | 2785 fps | 95% |
| ReloadSwiss RS 70 | <<locked>> | 90% | 40,045 psi | 64% | 2858 fps | 95.1% |
| Rottweil R 901 | <<locked>> | 80% | 47,645 psi | 76% | 2864 fps | 100% |
| Rottweil R 902 | <<locked>> | 80% | 41,524 psi | 67% | 2759 fps | 98.9% |
| Rottweil R 903 | <<locked>> | 80% | 34,911 psi | 56% | 2661 fps | 96.9% |
| Rottweil R 907 | <<locked>> | 92% | 49,037 psi | 79% | 2917 fps | 95.1% |
| Shooters World Long Rifle | <<locked>> | 88% | 41,814 psi | 67% | 2782 fps | 95.3% |
| Shooters World Match Rifle | <<locked>> | 80% | 43,700 psi | 70% | 2841 fps | 99.9% |
| Shooters World Precision | <<locked>> | 80% | 39,755 psi | 64% | 2743 fps | 98.7% |
| Shooters World SW4350 | <<locked>> | 92% | 45,005 psi | 72% | 2867 fps | 95% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 35,897 psi | 58% | 2713 fps | 96.3% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 44,947 psi | 72% | 2848 fps | 97% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 43,047 psi | 69% | 2825 fps | 98.3% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 44,976 psi | 72% | 2769 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 37,449 psi | 60% | 2625 fps | 99.9% |
| SNPE Vectan Tubal 7000 | <<locked>> | 92% | 47,282 psi | 76% | 2841 fps | 95.3% |
| Somchem S321 | <<locked>> | 80% | 50,473 psi | 81% | 2956 fps | 99.9% |
| Somchem S335 | <<locked>> | 80% | 44,527 psi | 71% | 2769 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 44,527 psi | 71% | 2841 fps | 98.5% |
| Somchem S355 | <<locked>> | 80% | 35,752 psi | 57% | 2671 fps | 96.9% |
| Somchem S365 | <<locked>> | 84% | 29,515 psi | 47% | 2592 fps | 95.8% |
| Vihtavuori N130 | <<locked>> | 80% | 50,763 psi | 81% | 2838 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 45,266 psi | 73% | 2762 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 40,988 psi | 66% | 2749 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 41,626 psi | 67% | 2753 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 34,026 psi | 55% | 2605 fps | 97.7% |
| Vihtavuori N160 | <<locked>> | 86% | 36,927 psi | 59% | 2717 fps | 95.1% |
| Vihtavuori N530 | <<locked>> | 80% | 46,847 psi | 75% | 2871 fps | 99.6% |
| Vihtavuori N540 | <<locked>> | 80% | 40,016 psi | 64% | 2736 fps | 99.8% |
| Vihtavuori N550 | <<locked>> | 88% | 38,798 psi | 62% | 2772 fps | 95.5% |
| Vihtavuori N555 | <<locked>> | 94% | 34,983 psi | 56% | 2753 fps | 95.4% |
| Winchester 6.5 StaBALL | <<locked>> | 82% | 32,329 psi | 52% | 2575 fps | 95.7% |
| Winchester 748 | <<locked>> | 80% | 46,369 psi | 74% | 2913 fps | 99.9% |
| Winchester 760 | <<locked>> | 92% | 45,977 psi | 74% | 2946 fps | 95% |
| Winchester StaBALL HD | <<locked>> | 98% | 32,692 psi | 52% | 2756 fps | 95.9% |
| Winchester StaBALL Match | <<locked>> | 80% | 42,670 psi | 68% | 2831 fps | 98.7% |
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 94 powders for .270 Win. loaded with the .277 | 120gr | Barnes Solid. ReloadSwiss RS 70 delivers the highest muzzle velocity at 3,186 fps; across all powders the maximum-charge window runs from 1,883 fps to 3,186 fps. Alliant Reloder-16 gives the best case fill at 100 %, and 94 of the 94 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (430 MPa), the top charges use 56–90 %, 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, Alliant Reloder-17 rank at the top here: for .270 Win. with the .277 | 120gr | Barnes Solid 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.