Load Specifications
Load data in caliber .25 Creedmoor with .257 | 110gr | Sierra Tipped GameKing 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 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>> | 84% | 54,476 psi | 88% | 2802 fps | 100% |
| Accurate 2495 | <<locked>> | 88% | 53,069 psi | 86% | 2828 fps | 100% |
| Accurate 2520 | <<locked>> | 84% | 54,578 psi | 88% | 2887 fps | 100% |
| Accurate 2700 | <<locked>> | 90% | 55,579 psi | 90% | 2867 fps | 96.7% |
| Accurate 4064 | <<locked>> | 90% | 52,881 psi | 85% | 2871 fps | 100% |
| Accurate 4350 | <<locked>> | 98% | 52,359 psi | 84% | 2943 fps | 99.2% |
| ADI AR 2206H | <<locked>> | 86% | 53,374 psi | 86% | 2897 fps | 99.8% |
| ADI AR 2208 | <<locked>> | 92% | 54,259 psi | 88% | 2897 fps | 99.6% |
| ADI Benchmark 8208 | <<locked>> | 86% | 55,796 psi | 90% | 2900 fps | 100% |
| Alliant AR-Comp | <<locked>> | 84% | 53,272 psi | 86% | 2831 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 88% | 53,011 psi | 86% | 3015 fps | 99.6% |
| Alliant Reloder- TS 15.5 | <<locked>> | 92% | 54,476 psi | 88% | 2923 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 90% | 54,752 psi | 88% | 2940 fps | 99.7% |
| Alliant Reloder-16ᴾ | <<locked>> | 100% | 53,621 psi | 86% | 3002 fps | 99.6% |
| Alliant Reloder-17 | <<locked>> | 96% | 55,187 psi | 89% | 3045 fps | 100% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 38,363 psi | 62% | 2726 fps | 98.2% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 42,830 psi | 69% | 2884 fps | 97.3% |
| Baschieri & Pellagri 107 | <<locked>> | 86% | 52,953 psi | 85% | 2907 fps | 99.3% |
| Bofors RP3 | <<locked>> | 92% | 54,752 psi | 88% | 2936 fps | 100% |
| Bofors RP7 | <<locked>> | 96% | 55,216 psi | 89% | 2904 fps | 96.9% |
| Hodgdon Benchmark | <<locked>> | 84% | 54,273 psi | 88% | 2835 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 86% | 55,129 psi | 89% | 2930 fps | 100% |
| Hodgdon CFE223 | <<locked>> | 82% | 53,505 psi | 86% | 2976 fps | 99.7% |
| Hodgdon H380 | <<locked>> | 92% | 56,086 psi | 90% | 2953 fps | 99.3% |
| Hodgdon H414 | <<locked>> | 98% | 55,303 psi | 89% | 2995 fps | 97.7% |
| Hodgdon H4895 | <<locked>> | 86% | 53,911 psi | 87% | 2910 fps | 100% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 50,198 psi | 81% | 2881 fps | 99.8% |
| Hodgdon LEVERevolution | <<locked>> | 88% | 53,272 psi | 86% | 2943 fps | 100% |
| Hodgdon Superformance | <<locked>> | 96% | 52,620 psi | 85% | 2972 fps | 96.6% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,462 psi | 57% | 1785 fps | 100% |
| Hodgdon VARGET | <<locked>> | 88% | 55,376 psi | 89% | 2917 fps | 100% |
| IMR 3031 | <<locked>> | 86% | 54,012 psi | 87% | 2897 fps | 100% |
| IMR 4064 | <<locked>> | 90% | 53,925 psi | 87% | 2881 fps | 99.7% |
| IMR 4166 Enduron | <<locked>> | 88% | 54,186 psi | 87% | 2861 fps | 97.3% |
| IMR 4350ᴾ | <<locked>> | 100% | 55,114 psi | 89% | 2923 fps | 97% |
| IMR 4451 Enduron | <<locked>> | 94% | 53,722 psi | 87% | 2884 fps | 97.1% |
| IMR 4831ᴾ | <<locked>> | 100% | 53,026 psi | 86% | 2936 fps | 99.3% |
| IMR 4895 | <<locked>> | 88% | 52,982 psi | 85% | 2923 fps | 99.8% |
| IMR 8208 XBR | <<locked>> | 86% | 55,796 psi | 90% | 2900 fps | 100% |
| Lovex D073.6 | <<locked>> | 86% | 52,881 psi | 85% | 2874 fps | 100% |
| Lovex S060 | <<locked>> | 86% | 53,142 psi | 86% | 2828 fps | 99.8% |
| Lovex S062 | <<locked>> | 90% | 53,780 psi | 87% | 2881 fps | 100% |
| Lovex S065 | <<locked>> | 96% | 52,808 psi | 85% | 2871 fps | 98.3% |
| Lovex S070 | <<locked>> | 98% | 53,606 psi | 86% | 2907 fps | 97.5% |
| Norma 201 | <<locked>> | 88% | 55,782 psi | 90% | 2900 fps | 100% |
| Norma 202 | <<locked>> | 86% | 52,707 psi | 85% | 2848 fps | 100% |
| Norma 203B | <<locked>> | 90% | 53,969 psi | 87% | 2927 fps | 99.9% |
| Norma URPᴾ | <<locked>> | 100% | 55,071 psi | 89% | 2986 fps | 99.4% |
| Ramshot Big Game | <<locked>> | 90% | 54,766 psi | 88% | 2956 fps | 99.9% |
| Ramshot Hunterᴾ | <<locked>> | 100% | 53,983 psi | 87% | 2982 fps | 98.2% |
| Ramshot TAC | <<locked>> | 84% | 52,721 psi | 85% | 2864 fps | 98.4% |
| Ramshot Wild Boar | <<locked>> | 86% | 55,985 psi | 90% | 2943 fps | 99.9% |
| Ramshot X-Terminator | <<locked>> | 82% | 53,374 psi | 86% | 2851 fps | 99.7% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 35,984 psi | 58% | 1827 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 82% | 55,419 psi | 89% | 2884 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 90% | 52,750 psi | 85% | 2874 fps | 97.6% |
| ReloadSwiss RS 52 | <<locked>> | 88% | 55,245 psi | 89% | 3009 fps | 99.8% |
| ReloadSwiss RS 60 | <<locked>> | 94% | 54,969 psi | 89% | 3048 fps | 100% |
| ReloadSwiss RS 62ᴾ | <<locked>> | 100% | 55,637 psi | 90% | 3018 fps | 99.4% |
| ReloadSwiss RS 70ᴾ | <<locked>> | 100% | 55,695 psi | 90% | 3051 fps | 99.3% |
| Rottweil R 901 | <<locked>> | 84% | 53,214 psi | 86% | 2828 fps | 100% |
| Rottweil R 902 | <<locked>> | 88% | 52,707 psi | 85% | 2844 fps | 100% |
| Rottweil R 903 | <<locked>> | 94% | 54,607 psi | 88% | 2927 fps | 100% |
| Rottweil R 907 | <<locked>> | 96% | 55,216 psi | 89% | 2904 fps | 96.9% |
| Shooters World Long Rifle | <<locked>> | 96% | 52,808 psi | 85% | 2871 fps | 98.3% |
| Shooters World Match Rifle | <<locked>> | 86% | 52,881 psi | 85% | 2874 fps | 100% |
| Shooters World Precision | <<locked>> | 90% | 53,780 psi | 87% | 2881 fps | 100% |
| Shooters World SW4350 | <<locked>> | 98% | 53,606 psi | 86% | 2907 fps | 97.5% |
| SNPE Vectan SP 11 | <<locked>> | 92% | 52,910 psi | 85% | 2933 fps | 99.8% |
| SNPE Vectan SP 7 | <<locked>> | 86% | 54,534 psi | 88% | 2894 fps | 99% |
| SNPE Vectan SP 9 | <<locked>> | 88% | 55,201 psi | 89% | 2920 fps | 99.9% |
| SNPE Vectan Tubal 3000 | <<locked>> | 86% | 53,809 psi | 87% | 2789 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 92% | 53,722 psi | 87% | 2782 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 96% | 53,156 psi | 86% | 2825 fps | 97.1% |
| Somchem S321 | <<locked>> | 82% | 53,606 psi | 86% | 2884 fps | 100% |
| Somchem S335 | <<locked>> | 86% | 53,127 psi | 86% | 2785 fps | 100% |
| Somchem S341 | <<locked>> | 86% | 54,041 psi | 87% | 2887 fps | 99.8% |
| Somchem S355 | <<locked>> | 94% | 55,143 psi | 89% | 2927 fps | 100% |
| Somchem S365ᴾ | <<locked>> | 100% | 49,298 psi | 80% | 2933 fps | 100% |
| Vihtavuori N130 | <<locked>> | 82% | 53,766 psi | 87% | 2756 fps | 100% |
| Vihtavuori N133 | <<locked>> | 86% | 54,027 psi | 87% | 2772 fps | 100% |
| Vihtavuori N135 | <<locked>> | 90% | 55,579 psi | 90% | 2858 fps | 100% |
| Vihtavuori N140 | <<locked>> | 88% | 53,330 psi | 86% | 2828 fps | 100% |
| Vihtavuori N150 | <<locked>> | 94% | 52,968 psi | 85% | 2851 fps | 100% |
| Vihtavuori N160 | <<locked>> | 98% | 54,128 psi | 87% | 2930 fps | 99.3% |
| Vihtavuori N530 | <<locked>> | 84% | 52,692 psi | 85% | 2848 fps | 100% |
| Vihtavuori N540 | <<locked>> | 90% | 54,824 psi | 88% | 2874 fps | 100% |
| Vihtavuori N550 | <<locked>> | 98% | 53,055 psi | 86% | 2933 fps | 99.1% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 41,829 psi | 67% | 2805 fps | 98.1% |
| Winchester 6.5 StaBALL | <<locked>> | 98% | 54,447 psi | 88% | 2907 fps | 100% |
| Winchester 748 | <<locked>> | 84% | 52,881 psi | 85% | 2900 fps | 100% |
| Winchester 760 | <<locked>> | 98% | 55,753 psi | 90% | 3002 fps | 97.7% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 34,461 psi | 56% | 2717 fps | 97.7% |
| Winchester StaBALL Match | <<locked>> | 88% | 55,390 psi | 89% | 2933 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% | 47,964 psi | 77% | 2710 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 40,828 psi | 66% | 2635 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 47,674 psi | 77% | 2782 fps | 100% |
| Accurate 2700 | <<locked>> | 86% | 48,791 psi | 79% | 2753 fps | 95.2% |
| Accurate 4064 | <<locked>> | 80% | 38,609 psi | 62% | 2625 fps | 100% |
| Accurate 4350 | <<locked>> | 86% | 34,505 psi | 56% | 2595 fps | 95.1% |
| ADI AR 2206H | <<locked>> | 80% | 44,150 psi | 71% | 2736 fps | 98.8% |
| ADI AR 2208 | <<locked>> | 80% | 37,608 psi | 61% | 2582 fps | 96.7% |
| ADI Benchmark 8208 | <<locked>> | 80% | 46,238 psi | 75% | 2746 fps | 99.7% |
| Alliant AR-Comp | <<locked>> | 80% | 46,543 psi | 75% | 2736 fps | 100% |
| Alliant Power Pro 2000-MR | 36.9 gr | 80% | 40,234 psi | 65% | 2762 fps | 97.3% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 37,318 psi | 60% | 2608 fps | 98.2% |
| Alliant Reloder-15 | <<locked>> | 80% | 39,900 psi | 64% | 2667 fps | 97.6% |
| Alliant Reloder-16 | <<locked>> | 86% | 34,766 psi | 56% | 2605 fps | 95.1% |
| Alliant Reloder-17 | <<locked>> | 80% | 32,082 psi | 52% | 2562 fps | 95.9% |
| Alliant Reloder-23 | <<locked>> | 94% | 31,981 psi | 52% | 2562 fps | 95.8% |
| Alliant Reloder-26 | <<locked>> | 96% | 37,376 psi | 60% | 2753 fps | 95.3% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 43,584 psi | 70% | 2740 fps | 97.9% |
| Bofors RP3 | <<locked>> | 80% | 36,825 psi | 59% | 2608 fps | 98.2% |
| Bofors RP7 | <<locked>> | 92% | 48,762 psi | 79% | 2795 fps | 95.5% |
| Hodgdon Benchmark | <<locked>> | 80% | 48,051 psi | 78% | 2736 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 80% | 45,179 psi | 73% | 2769 fps | 99.9% |
| Hodgdon CFE223 | <<locked>> | 80% | 49,632 psi | 80% | 2910 fps | 99.3% |
| Hodgdon H380 | <<locked>> | 80% | 37,753 psi | 61% | 2608 fps | 95.6% |
| Hodgdon H414 | <<locked>> | 92% | 45,556 psi | 73% | 2825 fps | 95.5% |
| Hodgdon H4895 | <<locked>> | 80% | 44,585 psi | 72% | 2749 fps | 99.3% |
| Hodgdon Hybrid 100V | <<locked>> | 84% | 30,110 psi | 49% | 2454 fps | 95.2% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 40,727 psi | 66% | 2720 fps | 99% |
| Hodgdon Superformance | 45.1 gr | 94% | 48,820 psi | 79% | 2904 fps | 95.7% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,440 psi | 43% | 1594 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 42,830 psi | 69% | 2700 fps | 99% |
| IMR 3031 | <<locked>> | 80% | 44,425 psi | 72% | 2749 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 39,494 psi | 64% | 2618 fps | 97.5% |
| IMR 4166 Enduron | <<locked>> | 82% | 44,614 psi | 72% | 2690 fps | 95.1% |
| IMR 4350 | <<locked>> | 96% | 48,689 psi | 79% | 2815 fps | 95.6% |
| IMR 4451 Enduron | <<locked>> | 88% | 44,614 psi | 72% | 2720 fps | 95% |
| IMR 4831 | <<locked>> | 88% | 35,708 psi | 58% | 2605 fps | 95.6% |
| IMR 4895 | <<locked>> | 80% | 40,886 psi | 66% | 2697 fps | 98.3% |
| IMR 8208 XBR | <<locked>> | 80% | 46,238 psi | 75% | 2746 fps | 99.7% |
| Lovex D073.6 | <<locked>> | 80% | 43,424 psi | 70% | 2720 fps | 100% |
| Lovex S060 | <<locked>> | 80% | 44,382 psi | 72% | 2677 fps | 98.9% |
| Lovex S062 | <<locked>> | 80% | 39,479 psi | 64% | 2625 fps | 99% |
| Lovex S065 | <<locked>> | 86% | 38,972 psi | 63% | 2612 fps | 95% |
| Lovex S070 | <<locked>> | 92% | 44,686 psi | 72% | 2746 fps | 95.4% |
| Norma 201 | <<locked>> | 80% | 43,482 psi | 70% | 2694 fps | 99.5% |
| Norma 202 | <<locked>> | 80% | 43,772 psi | 71% | 2703 fps | 100% |
| Norma 203B | <<locked>> | 80% | 39,291 psi | 63% | 2657 fps | 97.9% |
| Norma URP | <<locked>> | 86% | 34,896 psi | 56% | 2595 fps | 95% |
| Ramshot Big Game | <<locked>> | 80% | 38,928 psi | 63% | 2671 fps | 97.7% |
| Ramshot Hunter | <<locked>> | 92% | 41,524 psi | 67% | 2749 fps | 95.2% |
| Ramshot TAC | <<locked>> | 80% | 46,122 psi | 74% | 2746 fps | 97.2% |
| Ramshot Wild Boar | <<locked>> | 80% | 45,730 psi | 74% | 2772 fps | 99.1% |
| Ramshot X-Terminator | <<locked>> | 80% | 50,096 psi | 81% | 2799 fps | 99.5% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 26,701 psi | 43% | 1634 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 51,866 psi | 84% | 2828 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 84% | 43,410 psi | 70% | 2703 fps | 95.5% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 41,771 psi | 67% | 2769 fps | 98% |
| ReloadSwiss RS 60 | 36.3 gr | 80% | 34,156 psi | 55% | 2635 fps | 99% |
| ReloadSwiss RS 62 | <<locked>> | 88% | 36,782 psi | 59% | 2667 fps | 95.5% |
| ReloadSwiss RS 70 | <<locked>> | 90% | 39,610 psi | 64% | 2740 fps | 95.6% |
| Rottweil R 901 | <<locked>> | 80% | 47,311 psi | 76% | 2733 fps | 100% |
| Rottweil R 902 | <<locked>> | 80% | 41,321 psi | 67% | 2641 fps | 99.2% |
| Rottweil R 903 | <<locked>> | 80% | 34,519 psi | 56% | 2546 fps | 97.3% |
| Rottweil R 907 | <<locked>> | 92% | 48,762 psi | 79% | 2795 fps | 95.5% |
| Shooters World Long Rifle | <<locked>> | 86% | 38,972 psi | 63% | 2612 fps | 95% |
| Shooters World Match Rifle | <<locked>> | 80% | 43,424 psi | 70% | 2720 fps | 100% |
| Shooters World Precision | <<locked>> | 80% | 39,479 psi | 64% | 2625 fps | 99% |
| Shooters World SW4350 | <<locked>> | 92% | 44,686 psi | 72% | 2746 fps | 95.4% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 35,447 psi | 57% | 2595 fps | 96.7% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 44,353 psi | 72% | 2720 fps | 97.3% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 42,612 psi | 69% | 2700 fps | 98.6% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 44,585 psi | 72% | 2644 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 37,043 psi | 60% | 2507 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 92% | 46,688 psi | 75% | 2717 fps | 95.7% |
| Somchem S321 | <<locked>> | 80% | 50,227 psi | 81% | 2831 fps | 100% |
| Somchem S335 | <<locked>> | 80% | 44,411 psi | 72% | 2648 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 44,367 psi | 72% | 2723 fps | 98.8% |
| Somchem S355 | <<locked>> | 80% | 35,578 psi | 57% | 2559 fps | 97.4% |
| Somchem S365 | <<locked>> | 82% | 27,456 psi | 44% | 2431 fps | 95.4% |
| Vihtavuori N130 | <<locked>> | 80% | 50,299 psi | 81% | 2703 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 44,875 psi | 72% | 2638 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 40,553 psi | 65% | 2621 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 41,162 psi | 66% | 2631 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 33,663 psi | 54% | 2490 fps | 98.1% |
| Vihtavuori N160 | <<locked>> | 86% | 36,463 psi | 59% | 2602 fps | 95.5% |
| Vihtavuori N530 | <<locked>> | 80% | 46,412 psi | 75% | 2743 fps | 99.8% |
| Vihtavuori N540 | <<locked>> | 80% | 39,871 psi | 64% | 2621 fps | 99.9% |
| Vihtavuori N550 | <<locked>> | 86% | 35,853 psi | 58% | 2598 fps | 95.1% |
| Vihtavuori N555 | <<locked>> | 94% | 34,432 psi | 56% | 2638 fps | 95.9% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 30,081 psi | 49% | 2415 fps | 95.3% |
| Winchester 748 | <<locked>> | 80% | 45,905 psi | 74% | 2785 fps | 100% |
| Winchester 760 | <<locked>> | 92% | 45,556 psi | 73% | 2825 fps | 95.5% |
| Winchester StaBALL HD | <<locked>> | 96% | 30,269 psi | 49% | 2579 fps | 95.2% |
| Winchester StaBALL Match | <<locked>> | 80% | 42,163 psi | 68% | 2710 fps | 98.9% |
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 .25 Creedmoor loaded with the .257 | 110gr | Sierra Tipped GameKing. ReloadSwiss RS 70 delivers the highest muzzle velocity at 3,051 fps; across all powders the maximum-charge window runs from 1,785 fps to 3,051 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 (427 MPa), the top charges use 56–90 %, leaving at least 10 % headroom. The 110.0 gr projectile in 0.257" calls for a 1:9.5 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. Alliant Power Pro 2000-MR, ReloadSwiss RS 60, Hodgdon Superformance rank at the top here: for .25 Creedmoor with the .257 | 110gr | Sierra Tipped GameKing 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.