
Load Specifications
Load data in caliber .270 Win. with .270 | 120gr | MRR Green Hunting bullet and 94 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 Reloder-17 and Hodgdon H414.
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% | 53,026 psi | 85% | 2917 fps | 100% |
| Accurate 2495 | <<locked>> | 88% | 55,332 psi | 89% | 2989 fps | 100% |
| Accurate 2520 | <<locked>> | 82% | 53,214 psi | 85% | 3002 fps | 100% |
| Accurate 2700 | <<locked>> | 88% | 54,447 psi | 87% | 2982 fps | 96.3% |
| Accurate 4064 | <<locked>> | 90% | 55,303 psi | 89% | 3038 fps | 100% |
| Accurate 4350 | <<locked>> | 98% | 55,201 psi | 89% | 3117 fps | 99.4% |
| ADI AR 2206H | <<locked>> | 86% | 55,666 psi | 89% | 3071 fps | 99.9% |
| ADI AR 2208 | <<locked>> | 90% | 53,142 psi | 85% | 3012 fps | 99.4% |
| ADI Benchmark 8208 | <<locked>> | 84% | 54,389 psi | 87% | 3018 fps | 100% |
| Alliant AR-Comp | <<locked>> | 84% | 55,448 psi | 89% | 2999 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 88% | 55,230 psi | 89% | 3189 fps | 99.7% |
| Alliant Reloder- TS 15.5 | <<locked>> | 90% | 53,316 psi | 85% | 3038 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 88% | 53,780 psi | 86% | 3061 fps | 99.6% |
| Alliant Reloder-16ᴾ | <<locked>> | 100% | 56,391 psi | 90% | 3182 fps | 99.7% |
| Alliant Reloder-17 | <<locked>> | 94% | 54,172 psi | 87% | 3163 fps | 100% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 40,364 psi | 65% | 2887 fps | 98.4% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 45,469 psi | 73% | 3061 fps | 97.8% |
| Baschieri & Pellagri 107 | <<locked>> | 86% | 55,550 psi | 89% | 3084 fps | 99.5% |
| Bofors RP3 | <<locked>> | 90% | 53,969 psi | 87% | 3054 fps | 100% |
| Bofors RP7 | <<locked>> | 94% | 53,954 psi | 87% | 3015 fps | 96.5% |
| Hodgdon Benchmark | <<locked>> | 84% | 56,057 psi | 90% | 3002 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 84% | 53,896 psi | 86% | 3048 fps | 100% |
| Hodgdon CFE223 | <<locked>> | 82% | 55,941 psi | 90% | 3150 fps | 99.7% |
| Hodgdon H380 | <<locked>> | 90% | 54,723 psi | 88% | 3064 fps | 99% |
| Hodgdon H414 | <<locked>> | 96% | 54,404 psi | 87% | 3110 fps | 97.3% |
| Hodgdon H4350 | <<locked>> | 94% | 55,172 psi | 88% | 3077 fps | 96% |
| Hodgdon H4895 | <<locked>> | 86% | 56,217 psi | 90% | 3084 fps | 100% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 52,591 psi | 84% | 3045 fps | 99.9% |
| Hodgdon LEVERevolution | <<locked>> | 88% | 55,695 psi | 89% | 3114 fps | 100% |
| Hodgdon Superformance | <<locked>> | 96% | 55,143 psi | 88% | 3150 fps | 97% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,621 psi | 57% | 1900 fps | 100% |
| Hodgdon VARGET | <<locked>> | 86% | 53,809 psi | 86% | 3028 fps | 99.9% |
| IMR 3031 | <<locked>> | 86% | 56,115 psi | 90% | 3064 fps | 100% |
| IMR 4064 | <<locked>> | 90% | 55,956 psi | 90% | 3048 fps | 99.7% |
| IMR 4166 Enduron | <<locked>> | 88% | 56,028 psi | 90% | 3028 fps | 97.4% |
| IMR 4350 | <<locked>> | 98% | 54,157 psi | 87% | 3038 fps | 96.6% |
| IMR 4451 Enduron | <<locked>> | 94% | 55,651 psi | 89% | 3048 fps | 97.3% |
| IMR 4831ᴾ | <<locked>> | 100% | 55,854 psi | 90% | 3110 fps | 99.5% |
| IMR 4895 | <<locked>> | 88% | 55,172 psi | 88% | 3094 fps | 99.9% |
| IMR 8208 XBR | <<locked>> | 84% | 54,389 psi | 87% | 3018 fps | 100% |
| Lovex D073.6 | <<locked>> | 86% | 55,317 psi | 89% | 3041 fps | 100% |
| Lovex S060 | <<locked>> | 86% | 54,824 psi | 88% | 2992 fps | 99.8% |
| Lovex S062 | <<locked>> | 90% | 55,840 psi | 90% | 3045 fps | 100% |
| Lovex S065 | <<locked>> | 96% | 55,172 psi | 88% | 3041 fps | 98.5% |
| Lovex S070 | <<locked>> | 98% | 56,101 psi | 90% | 3077 fps | 97.7% |
| Norma 201 | <<locked>> | 86% | 54,288 psi | 87% | 3012 fps | 100% |
| Norma 202 | <<locked>> | 86% | 54,897 psi | 88% | 3015 fps | 100% |
| Norma 203B | <<locked>> | 90% | 56,434 psi | 90% | 3100 fps | 99.9% |
| Norma URP | <<locked>> | 98% | 54,143 psi | 87% | 3104 fps | 99.2% |
| Ramshot Big Game | <<locked>> | 88% | 53,403 psi | 86% | 3068 fps | 99.7% |
| Ramshot Hunter | <<locked>> | 98% | 53,287 psi | 85% | 3100 fps | 97.9% |
| Ramshot TAC | <<locked>> | 84% | 54,621 psi | 88% | 3028 fps | 98.5% |
| Ramshot Wild Boar | <<locked>> | 84% | 54,476 psi | 87% | 3054 fps | 99.8% |
| Ramshot X-Terminator | <<locked>> | 82% | 55,216 psi | 89% | 3015 fps | 99.8% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 35,940 psi | 58% | 1942 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 90% | 55,143 psi | 88% | 3045 fps | 97.9% |
| ReloadSwiss RS 52 | <<locked>> | 86% | 54,027 psi | 87% | 3123 fps | 99.6% |
| ReloadSwiss RS 60 | <<locked>> | 92% | 53,809 psi | 86% | 3163 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 98% | 55,100 psi | 88% | 3143 fps | 99.2% |
| ReloadSwiss RS 70 | <<locked>> | 98% | 54,708 psi | 88% | 3173 fps | 99% |
| Rottweil R 901 | <<locked>> | 84% | 55,056 psi | 88% | 2995 fps | 100% |
| Rottweil R 902 | <<locked>> | 88% | 54,795 psi | 88% | 3012 fps | 100% |
| Rottweil R 903 | <<locked>> | 92% | 53,795 psi | 86% | 3045 fps | 99.9% |
| Rottweil R 907 | <<locked>> | 94% | 53,954 psi | 87% | 3015 fps | 96.5% |
| Shooters World Long Rifle | <<locked>> | 96% | 55,172 psi | 88% | 3041 fps | 98.5% |
| Shooters World Match Rifle | <<locked>> | 86% | 55,317 psi | 89% | 3041 fps | 100% |
| Shooters World Precision | <<locked>> | 90% | 55,840 psi | 90% | 3045 fps | 100% |
| Shooters World SW4350 | <<locked>> | 98% | 56,101 psi | 90% | 3077 fps | 97.7% |
| SNPE Vectan SP 11 | <<locked>> | 92% | 55,361 psi | 89% | 3104 fps | 99.8% |
| SNPE Vectan SP 7 | <<locked>> | 84% | 53,229 psi | 85% | 3009 fps | 98.7% |
| SNPE Vectan SP 9 | <<locked>> | 86% | 53,853 psi | 86% | 3035 fps | 99.8% |
| SNPE Vectan Tubal 3000 | <<locked>> | 86% | 55,622 psi | 89% | 2953 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 92% | 55,927 psi | 90% | 2946 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 96% | 55,434 psi | 89% | 2992 fps | 97.3% |
| Somchem S321 | <<locked>> | 82% | 55,651 psi | 89% | 3048 fps | 100% |
| Somchem S335 | <<locked>> | 86% | 55,085 psi | 88% | 2946 fps | 100% |
| Somchem S341 | <<locked>> | 84% | 52,721 psi | 85% | 2999 fps | 99.7% |
| Somchem S355 | <<locked>> | 92% | 54,027 psi | 87% | 3041 fps | 99.9% |
| Somchem S365ᴾ | <<locked>> | 100% | 52,417 psi | 84% | 3110 fps | 100% |
| Vihtavuori N130 | <<locked>> | 82% | 55,376 psi | 89% | 2913 fps | 100% |
| Vihtavuori N133 | <<locked>> | 86% | 55,898 psi | 90% | 2936 fps | 100% |
| Vihtavuori N135 | <<locked>> | 88% | 54,636 psi | 88% | 2979 fps | 100% |
| Vihtavuori N140 | <<locked>> | 88% | 55,259 psi | 89% | 2992 fps | 100% |
| Vihtavuori N150 | <<locked>> | 94% | 55,492 psi | 89% | 3022 fps | 100% |
| Vihtavuori N160 | <<locked>> | 96% | 53,200 psi | 85% | 3045 fps | 99% |
| Vihtavuori N530 | <<locked>> | 84% | 54,795 psi | 88% | 3015 fps | 100% |
| Vihtavuori N540 | <<locked>> | 88% | 53,679 psi | 86% | 2989 fps | 100% |
| Vihtavuori N550 | <<locked>> | 98% | 56,057 psi | 90% | 3110 fps | 99.3% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 44,643 psi | 72% | 2976 fps | 98.4% |
| Winchester 6.5 StaBALL | <<locked>> | 96% | 53,374 psi | 86% | 3022 fps | 100% |
| Winchester 748 | <<locked>> | 84% | 54,824 psi | 88% | 3064 fps | 100% |
| Winchester 760 | <<locked>> | 96% | 54,752 psi | 88% | 3117 fps | 97.4% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 36,274 psi | 58% | 2884 fps | 98.2% |
| Winchester StaBALL Match | <<locked>> | 86% | 53,896 psi | 86% | 3045 fps | 99.9% |
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% | 49,748 psi | 80% | 2867 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 42,627 psi | 68% | 2785 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 49,705 psi | 80% | 2946 fps | 100% |
| Accurate 2700 | <<locked>> | 86% | 50,923 psi | 82% | 2923 fps | 95.5% |
| Accurate 4064 | <<locked>> | 80% | 40,277 psi | 65% | 2776 fps | 100% |
| Accurate 4350 | <<locked>> | 86% | 36,521 psi | 59% | 2753 fps | 95.4% |
| ADI AR 2206H | <<locked>> | 80% | 45,992 psi | 74% | 2900 fps | 98.9% |
| ADI AR 2208 | <<locked>> | 80% | 38,943 psi | 62% | 2733 fps | 96.8% |
| ADI Benchmark 8208 | <<locked>> | 80% | 48,080 psi | 77% | 2910 fps | 99.8% |
| Alliant AR-Comp | <<locked>> | 80% | 48,544 psi | 78% | 2897 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 41,843 psi | 67% | 2923 fps | 97.5% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 38,711 psi | 62% | 2756 fps | 98.3% |
| Alliant Reloder-15 | <<locked>> | 80% | 41,684 psi | 67% | 2828 fps | 97.7% |
| Alliant Reloder-16 | <<locked>> | 86% | 36,376 psi | 58% | 2766 fps | 95.4% |
| Alliant Reloder-17 | 47.5 gr | 80% | 33,562 psi | 54% | 2717 fps | 96.2% |
| Alliant Reloder-23 | <<locked>> | 92% | 31,502 psi | 51% | 2651 fps | 95% |
| Alliant Reloder-26 | <<locked>> | 96% | 39,494 psi | 63% | 2920 fps | 95.8% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 45,208 psi | 72% | 2897 fps | 98% |
| Bofors RP3 | <<locked>> | 80% | 38,595 psi | 62% | 2762 fps | 98.3% |
| Bofors RP7 | <<locked>> | 90% | 47,645 psi | 76% | 2900 fps | 95% |
| Hodgdon Benchmark | <<locked>> | 80% | 49,705 psi | 80% | 2897 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 80% | 47,065 psi | 75% | 2930 fps | 99.9% |
| Hodgdon CFE223 | <<locked>> | 80% | 51,924 psi | 83% | 3084 fps | 99.4% |
| Hodgdon H380 | <<locked>> | 80% | 39,175 psi | 63% | 2759 fps | 95.7% |
| Hodgdon H414 | 53.4 gr | 92% | 47,659 psi | 76% | 2989 fps | 95.8% |
| Hodgdon H4350 | <<locked>> | 92% | 51,576 psi | 83% | 3015 fps | 95.2% |
| Hodgdon H4895 | <<locked>> | 80% | 46,470 psi | 75% | 2910 fps | 99.3% |
| Hodgdon Hybrid 100V | <<locked>> | 84% | 31,401 psi | 50% | 2598 fps | 95.3% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 42,482 psi | 68% | 2877 fps | 99.1% |
| Hodgdon Superformance | <<locked>> | 92% | 47,718 psi | 77% | 3012 fps | 95.2% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,571 psi | 43% | 1699 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 44,411 psi | 71% | 2858 fps | 99% |
| IMR 3031 | <<locked>> | 80% | 46,050 psi | 74% | 2907 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 40,886 psi | 66% | 2772 fps | 97.6% |
| IMR 4166 Enduron | <<locked>> | 82% | 46,166 psi | 74% | 2851 fps | 95.2% |
| IMR 4350 | <<locked>> | 94% | 47,892 psi | 77% | 2927 fps | 95.1% |
| IMR 4451 Enduron | <<locked>> | 88% | 46,412 psi | 74% | 2881 fps | 95.2% |
| IMR 4831 | <<locked>> | 88% | 37,695 psi | 60% | 2762 fps | 95.9% |
| IMR 4895 | <<locked>> | 80% | 42,728 psi | 69% | 2861 fps | 98.4% |
| IMR 8208 XBR | <<locked>> | 80% | 48,080 psi | 77% | 2910 fps | 99.8% |
| Lovex D073.6 | <<locked>> | 80% | 45,150 psi | 72% | 2874 fps | 100% |
| Lovex S060 | <<locked>> | 80% | 45,658 psi | 73% | 2828 fps | 98.9% |
| Lovex S062 | <<locked>> | 80% | 40,872 psi | 66% | 2776 fps | 99% |
| Lovex S065 | <<locked>> | 86% | 40,596 psi | 65% | 2766 fps | 95.2% |
| Lovex S070 | <<locked>> | 92% | 46,644 psi | 75% | 2910 fps | 95.7% |
| Norma 201 | <<locked>> | 80% | 45,020 psi | 72% | 2851 fps | 99.5% |
| Norma 202 | <<locked>> | 80% | 45,266 psi | 73% | 2858 fps | 100% |
| Norma 203B | <<locked>> | 80% | 41,075 psi | 66% | 2815 fps | 98.1% |
| Norma URP | <<locked>> | 86% | 36,521 psi | 59% | 2749 fps | 95.2% |
| Ramshot Big Game | <<locked>> | 80% | 40,596 psi | 65% | 2825 fps | 97.8% |
| Ramshot Hunter | <<locked>> | 92% | 43,439 psi | 70% | 2910 fps | 95.5% |
| Ramshot TAC | <<locked>> | 80% | 47,964 psi | 77% | 2910 fps | 97.3% |
| Ramshot Wild Boar | <<locked>> | 80% | 47,674 psi | 76% | 2933 fps | 99.2% |
| Ramshot X-Terminator | <<locked>> | 80% | 51,721 psi | 83% | 2956 fps | 99.5% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 26,716 psi | 43% | 1736 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 84% | 45,150 psi | 72% | 2861 fps | 95.7% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 43,845 psi | 70% | 2936 fps | 98.1% |
| ReloadSwiss RS 60 | 47.5 gr | 80% | 35,723 psi | 57% | 2789 fps | 99.1% |
| ReloadSwiss RS 62 | <<locked>> | 88% | 38,856 psi | 62% | 2831 fps | 95.8% |
| ReloadSwiss RS 70 | <<locked>> | 90% | 41,379 psi | 66% | 2900 fps | 95.9% |
| Rottweil R 901 | <<locked>> | 80% | 48,965 psi | 79% | 2897 fps | 100% |
| Rottweil R 902 | <<locked>> | 80% | 42,728 psi | 69% | 2795 fps | 99.3% |
| Rottweil R 903 | <<locked>> | 80% | 36,303 psi | 58% | 2703 fps | 97.5% |
| Rottweil R 907 | <<locked>> | 90% | 47,645 psi | 76% | 2900 fps | 95% |
| Shooters World Long Rifle | <<locked>> | 86% | 40,596 psi | 65% | 2766 fps | 95.2% |
| Shooters World Match Rifle | <<locked>> | 80% | 45,150 psi | 72% | 2874 fps | 100% |
| Shooters World Precision | <<locked>> | 80% | 40,872 psi | 66% | 2776 fps | 99% |
| Shooters World SW4350 | <<locked>> | 92% | 46,644 psi | 75% | 2910 fps | 95.7% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 37,086 psi | 59% | 2749 fps | 96.9% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 46,441 psi | 74% | 2887 fps | 97.5% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 44,338 psi | 71% | 2861 fps | 98.7% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 46,195 psi | 74% | 2802 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 38,508 psi | 62% | 2654 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 90% | 45,600 psi | 73% | 2822 fps | 95.1% |
| Somchem S321 | <<locked>> | 80% | 52,054 psi | 83% | 2992 fps | 100% |
| Somchem S335 | <<locked>> | 80% | 45,919 psi | 74% | 2802 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 46,064 psi | 74% | 2881 fps | 98.9% |
| Somchem S355 | <<locked>> | 80% | 37,043 psi | 59% | 2710 fps | 97.5% |
| Somchem S365 | <<locked>> | 82% | 28,689 psi | 46% | 2575 fps | 95.6% |
| Vihtavuori N130 | <<locked>> | 80% | 52,025 psi | 83% | 2867 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 46,528 psi | 75% | 2795 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 42,351 psi | 68% | 2779 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 42,989 psi | 69% | 2789 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 35,259 psi | 57% | 2641 fps | 98.2% |
| Vihtavuori N160 | <<locked>> | 86% | 38,334 psi | 61% | 2759 fps | 95.8% |
| Vihtavuori N530 | <<locked>> | 80% | 48,283 psi | 77% | 2907 fps | 99.8% |
| Vihtavuori N540 | <<locked>> | 80% | 41,278 psi | 66% | 2772 fps | 99.9% |
| Vihtavuori N550 | <<locked>> | 86% | 37,666 psi | 60% | 2753 fps | 95.3% |
| Vihtavuori N555 | <<locked>> | 92% | 34,011 psi | 55% | 2736 fps | 95.2% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 31,212 psi | 50% | 2552 fps | 95.4% |
| Winchester 748 | <<locked>> | 80% | 48,080 psi | 77% | 2953 fps | 100% |
| Winchester 760 | <<locked>> | 92% | 47,906 psi | 77% | 2995 fps | 95.8% |
| Winchester StaBALL HD | <<locked>> | 96% | 31,894 psi | 51% | 2743 fps | 95.8% |
| Winchester StaBALL Match | <<locked>> | 80% | 43,961 psi | 70% | 2864 fps | 99% |
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 .270 | 120gr | MRR Green Hunting. Alliant Power Pro 2000-MR delivers the highest muzzle velocity at 3,189 fps; across all powders the maximum-charge window runs from 1,900 fps to 3,189 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 57–90 %, leaving at least 10 % headroom. The 120.0 gr projectile in 0.277" calls for a 1:11.5 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. ReloadSwiss RS 60, Alliant Reloder-17, Hodgdon H414 rank at the top here: for .270 Win. with the .270 | 120gr | MRR Green Hunting 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.