Load Specifications
Load data in caliber .338 Blaser Mag. with .338 | 200gr | CutEdge ESP Raptor 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, Hodgdon Superformance 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: 25.6"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2015 | <<locked>> | 84% | 54,099 psi | 89% | 2772 fps | 100% |
| Accurate 2495 | <<locked>> | 88% | 52,228 psi | 86% | 2792 fps | 100% |
| Accurate 2520 | <<locked>> | 84% | 54,505 psi | 89% | 2864 fps | 100% |
| Accurate 2700 | <<locked>> | 88% | 52,083 psi | 86% | 2792 fps | 96.7% |
| Accurate 4064 | <<locked>> | 90% | 52,431 psi | 86% | 2841 fps | 100% |
| Accurate 4350 | <<locked>> | 98% | 52,373 psi | 86% | 2927 fps | 99.6% |
| ADI AR 2206H | <<locked>> | 86% | 53,243 psi | 87% | 2874 fps | 100% |
| ADI AR 2208 | <<locked>> | 92% | 54,433 psi | 89% | 2877 fps | 99.8% |
| ADI Benchmark 8208 | <<locked>> | 84% | 52,344 psi | 86% | 2825 fps | 100% |
| Alliant AR-Comp | <<locked>> | 84% | 53,113 psi | 87% | 2802 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 88% | 53,040 psi | 87% | 2995 fps | 99.9% |
| Alliant Reloder- TS 15.5 | <<locked>> | 92% | 54,259 psi | 89% | 2897 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 90% | 54,810 psi | 90% | 2920 fps | 99.9% |
| Alliant Reloder-16ᴾ | <<locked>> | 100% | 53,940 psi | 89% | 2986 fps | 99.9% |
| Alliant Reloder-17 | <<locked>> | 94% | 51,503 psi | 85% | 2966 fps | 100% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 38,159 psi | 63% | 2713 fps | 98.8% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 42,772 psi | 70% | 2874 fps | 98.1% |
| Baschieri & Pellagri 107 | <<locked>> | 86% | 53,258 psi | 87% | 2890 fps | 99.7% |
| Bofors RP3 | <<locked>> | 92% | 54,752 psi | 90% | 2910 fps | 100% |
| Bofors RP7 | <<locked>> | 96% | 54,998 psi | 90% | 2884 fps | 97.6% |
| Hodgdon Benchmark | <<locked>> | 84% | 54,244 psi | 89% | 2812 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 84% | 51,634 psi | 85% | 2858 fps | 100% |
| Hodgdon CFE223 | <<locked>> | 82% | 53,548 psi | 88% | 2953 fps | 99.9% |
| Hodgdon H380 | <<locked>> | 90% | 52,257 psi | 86% | 2874 fps | 99.2% |
| Hodgdon H414 | <<locked>> | 96% | 51,808 psi | 85% | 2920 fps | 97.7% |
| Hodgdon H4350 | <<locked>> | 94% | 52,736 psi | 87% | 2884 fps | 96.5% |
| Hodgdon H4895 | <<locked>> | 86% | 53,780 psi | 88% | 2884 fps | 100% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 50,067 psi | 82% | 2858 fps | 100% |
| Hodgdon LEVERevolution | <<locked>> | 88% | 53,301 psi | 88% | 2920 fps | 100% |
| Hodgdon Superformance | <<locked>> | 96% | 52,533 psi | 86% | 2959 fps | 97.4% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,317 psi | 58% | 1759 fps | 100% |
| Hodgdon VARGET | <<locked>> | 86% | 51,735 psi | 85% | 2838 fps | 100% |
| IMR 3031 | <<locked>> | 86% | 53,911 psi | 89% | 2871 fps | 100% |
| IMR 4064 | <<locked>> | 90% | 53,983 psi | 89% | 2861 fps | 99.9% |
| IMR 4166 Enduron | <<locked>> | 88% | 53,998 psi | 89% | 2838 fps | 97.9% |
| IMR 4350 | <<locked>> | 98% | 52,040 psi | 85% | 2858 fps | 97.1% |
| IMR 4451 Enduron | <<locked>> | 94% | 53,664 psi | 88% | 2864 fps | 97.7% |
| IMR 4831ᴾ | <<locked>> | 100% | 53,069 psi | 87% | 2917 fps | 99.7% |
| IMR 4895 | <<locked>> | 88% | 52,721 psi | 87% | 2897 fps | 100% |
| IMR 8208 XBR | <<locked>> | 84% | 52,344 psi | 86% | 2825 fps | 100% |
| Lovex D073.6 | <<locked>> | 86% | 52,808 psi | 87% | 2851 fps | 100% |
| Lovex S060 | <<locked>> | 86% | 53,098 psi | 87% | 2805 fps | 99.9% |
| Lovex S062 | <<locked>> | 90% | 53,534 psi | 88% | 2854 fps | 100% |
| Lovex S065 | <<locked>> | 96% | 52,852 psi | 87% | 2854 fps | 98.8% |
| Lovex S070 | <<locked>> | 98% | 53,751 psi | 88% | 2890 fps | 98.1% |
| Norma 201 | <<locked>> | 86% | 51,880 psi | 85% | 2818 fps | 100% |
| Norma 202 | <<locked>> | 86% | 52,620 psi | 86% | 2822 fps | 100% |
| Norma 203B | <<locked>> | 90% | 53,983 psi | 89% | 2904 fps | 100% |
| Norma URPᴾ | <<locked>> | 100% | 55,071 psi | 90% | 2966 fps | 99.7% |
| Ramshot Big Game | <<locked>> | 90% | 54,868 psi | 90% | 2936 fps | 100% |
| Ramshot Hunterᴾ | <<locked>> | 100% | 53,998 psi | 89% | 2963 fps | 98.7% |
| Ramshot TAC | <<locked>> | 84% | 52,707 psi | 87% | 2844 fps | 98.9% |
| Ramshot Wild Boar | <<locked>> | 84% | 52,272 psi | 86% | 2864 fps | 99.9% |
| Ramshot X-Terminator | <<locked>> | 82% | 53,258 psi | 87% | 2828 fps | 99.9% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 35,737 psi | 59% | 1801 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 90% | 52,823 psi | 87% | 2858 fps | 98.2% |
| ReloadSwiss RS 52 | <<locked>> | 86% | 51,851 psi | 85% | 2933 fps | 99.8% |
| ReloadSwiss RS 60 | <<locked>> | 94% | 54,984 psi | 90% | 3022 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 98% | 52,141 psi | 86% | 2946 fps | 99.4% |
| ReloadSwiss RS 70 | <<locked>> | 98% | 52,069 psi | 85% | 2979 fps | 99.3% |
| Rottweil R 901 | <<locked>> | 84% | 52,852 psi | 87% | 2802 fps | 100% |
| Rottweil R 902 | <<locked>> | 88% | 52,547 psi | 86% | 2818 fps | 100% |
| Rottweil R 903 | <<locked>> | 94% | 54,607 psi | 90% | 2904 fps | 100% |
| Rottweil R 907 | <<locked>> | 96% | 54,998 psi | 90% | 2884 fps | 97.6% |
| Shooters World Long Rifle | <<locked>> | 96% | 52,852 psi | 87% | 2854 fps | 98.8% |
| Shooters World Match Rifle | <<locked>> | 86% | 52,808 psi | 87% | 2851 fps | 100% |
| Shooters World Precision | <<locked>> | 90% | 53,534 psi | 88% | 2854 fps | 100% |
| Shooters World SW4350 | <<locked>> | 98% | 53,751 psi | 88% | 2890 fps | 98.1% |
| SNPE Vectan SP 11 | <<locked>> | 92% | 53,026 psi | 87% | 2913 fps | 99.9% |
| SNPE Vectan SP 7 | <<locked>> | 86% | 54,418 psi | 89% | 2874 fps | 99.4% |
| SNPE Vectan SP 9 | <<locked>> | 86% | 51,924 psi | 85% | 2848 fps | 99.9% |
| SNPE Vectan Tubal 3000 | <<locked>> | 86% | 53,606 psi | 88% | 2759 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 92% | 53,940 psi | 89% | 2759 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 96% | 53,113 psi | 87% | 2808 fps | 97.7% |
| Somchem S321 | <<locked>> | 82% | 53,374 psi | 88% | 2858 fps | 100% |
| Somchem S335 | <<locked>> | 86% | 52,895 psi | 87% | 2756 fps | 100% |
| Somchem S341 | <<locked>> | 86% | 54,302 psi | 89% | 2867 fps | 100% |
| Somchem S355 | <<locked>> | 94% | 54,911 psi | 90% | 2900 fps | 100% |
| Somchem S365ᴾ | <<locked>> | 100% | 49,371 psi | 81% | 2913 fps | 100% |
| Vihtavuori N130 | <<locked>> | 82% | 53,461 psi | 88% | 2723 fps | 100% |
| Vihtavuori N133 | <<locked>> | 86% | 53,896 psi | 88% | 2743 fps | 100% |
| Vihtavuori N135 | <<locked>> | 88% | 52,330 psi | 86% | 2785 fps | 100% |
| Vihtavuori N140 | <<locked>> | 88% | 53,098 psi | 87% | 2802 fps | 100% |
| Vihtavuori N150 | <<locked>> | 94% | 53,084 psi | 87% | 2831 fps | 100% |
| Vihtavuori N160 | <<locked>> | 98% | 54,331 psi | 89% | 2913 fps | 99.6% |
| Vihtavuori N530 | <<locked>> | 84% | 52,750 psi | 87% | 2825 fps | 100% |
| Vihtavuori N540 | <<locked>> | 90% | 54,723 psi | 90% | 2844 fps | 100% |
| Vihtavuori N550 | <<locked>> | 98% | 53,258 psi | 87% | 2920 fps | 99.5% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 41,742 psi | 69% | 2789 fps | 98.7% |
| Winchester 6.5 StaBALL | <<locked>> | 98% | 54,795 psi | 90% | 2894 fps | 100% |
| Winchester 748 | <<locked>> | 84% | 52,721 psi | 87% | 2874 fps | 100% |
| Winchester 760 | <<locked>> | 96% | 52,025 psi | 85% | 2927 fps | 97.7% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 34,069 psi | 56% | 2707 fps | 98.6% |
| Winchester StaBALL Match | <<locked>> | 88% | 55,085 psi | 90% | 2907 fps | 100% |
Recommended = one of the top powders for this cartridge and bullet combination.
Start Load - Barrel Length: 25.6"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2015 | <<locked>> | 80% | 47,616 psi | 78% | 2680 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 39,842 psi | 65% | 2595 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 47,369 psi | 78% | 2756 fps | 100% |
| Accurate 2700 | <<locked>> | 84% | 45,643 psi | 75% | 2680 fps | 95.2% |
| Accurate 4064 | <<locked>> | 80% | 37,724 psi | 62% | 2592 fps | 100% |
| Accurate 4350 | <<locked>> | 86% | 34,011 psi | 56% | 2575 fps | 95.8% |
| ADI AR 2206H | <<locked>> | 80% | 43,918 psi | 72% | 2713 fps | 99.2% |
| ADI AR 2208 | <<locked>> | 80% | 37,434 psi | 61% | 2566 fps | 97.4% |
| ADI Benchmark 8208 | <<locked>> | 80% | 46,064 psi | 76% | 2723 fps | 99.9% |
| Alliant AR-Comp | <<locked>> | 80% | 46,427 psi | 76% | 2707 fps | 100% |
| Alliant Power Pro 2000-MR | 64 gr | 80% | 40,074 psi | 66% | 2746 fps | 98% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 36,941 psi | 61% | 2585 fps | 98.7% |
| Alliant Reloder-15 | <<locked>> | 80% | 39,610 psi | 65% | 2648 fps | 98.1% |
| Alliant Reloder-16 | <<locked>> | 84% | 32,503 psi | 53% | 2536 fps | 95.1% |
| Alliant Reloder-17 | 63 gr | 80% | 31,792 psi | 52% | 2549 fps | 96.8% |
| Alliant Reloder-23 | <<locked>> | 92% | 29,646 psi | 49% | 2487 fps | 95.6% |
| Alliant Reloder-26 | <<locked>> | 94% | 34,374 psi | 56% | 2671 fps | 95% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 43,250 psi | 71% | 2720 fps | 98.4% |
| Bofors RP3 | <<locked>> | 80% | 36,376 psi | 60% | 2585 fps | 98.7% |
| Bofors RP7 | <<locked>> | 90% | 45,484 psi | 75% | 2720 fps | 95.5% |
| Hodgdon Benchmark | <<locked>> | 80% | 47,848 psi | 79% | 2713 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 80% | 44,976 psi | 74% | 2746 fps | 100% |
| Hodgdon CFE223 | <<locked>> | 80% | 49,908 psi | 82% | 2897 fps | 99.7% |
| Hodgdon H380 | <<locked>> | 80% | 37,246 psi | 61% | 2589 fps | 96.2% |
| Hodgdon H414 | <<locked>> | 90% | 42,337 psi | 70% | 2749 fps | 95.5% |
| Hodgdon H4350 | <<locked>> | 92% | 49,472 psi | 81% | 2828 fps | 95.7% |
| Hodgdon H4895 | <<locked>> | 80% | 44,353 psi | 73% | 2726 fps | 99.6% |
| Hodgdon Hybrid 100V | <<locked>> | 84% | 29,689 psi | 49% | 2434 fps | 95.9% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 40,393 psi | 66% | 2697 fps | 99.4% |
| Hodgdon Superformance | 76.6 gr | 92% | 45,469 psi | 75% | 2828 fps | 95.7% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,150 psi | 43% | 1572 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 42,598 psi | 70% | 2677 fps | 99.3% |
| IMR 3031 | <<locked>> | 80% | 44,034 psi | 72% | 2720 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 39,276 psi | 64% | 2598 fps | 98.1% |
| IMR 4166 Enduron | <<locked>> | 80% | 41,742 psi | 69% | 2618 fps | 95% |
| IMR 4350 | <<locked>> | 94% | 45,832 psi | 75% | 2749 fps | 95.6% |
| IMR 4451 Enduron | <<locked>> | 86% | 41,916 psi | 69% | 2651 fps | 95% |
| IMR 4831 | <<locked>> | 86% | 33,098 psi | 54% | 2533 fps | 95.5% |
| IMR 4895 | <<locked>> | 80% | 40,596 psi | 67% | 2680 fps | 98.8% |
| IMR 8208 XBR | <<locked>> | 80% | 46,064 psi | 76% | 2723 fps | 99.9% |
| Lovex D073.6 | <<locked>> | 80% | 43,033 psi | 71% | 2694 fps | 100% |
| Lovex S060 | <<locked>> | 80% | 44,106 psi | 72% | 2654 fps | 99.3% |
| Lovex S062 | <<locked>> | 80% | 39,001 psi | 64% | 2602 fps | 99.3% |
| Lovex S065 | <<locked>> | 86% | 38,551 psi | 63% | 2589 fps | 95.7% |
| Lovex S070 | <<locked>> | 90% | 41,582 psi | 68% | 2674 fps | 95.4% |
| Norma 201 | <<locked>> | 80% | 42,873 psi | 70% | 2664 fps | 99.7% |
| Norma 202 | <<locked>> | 80% | 43,453 psi | 71% | 2677 fps | 100% |
| Norma 203B | <<locked>> | 80% | 38,957 psi | 64% | 2635 fps | 98.4% |
| Norma URP | <<locked>> | 84% | 32,445 psi | 53% | 2526 fps | 95% |
| Ramshot Big Game | <<locked>> | 80% | 38,725 psi | 64% | 2651 fps | 98.2% |
| Ramshot Hunter | <<locked>> | 90% | 38,812 psi | 64% | 2680 fps | 95.2% |
| Ramshot TAC | <<locked>> | 80% | 45,963 psi | 75% | 2730 fps | 97.8% |
| Ramshot Wild Boar | <<locked>> | 80% | 45,658 psi | 75% | 2753 fps | 99.4% |
| Ramshot X-Terminator | <<locked>> | 80% | 49,850 psi | 82% | 2776 fps | 99.7% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 26,455 psi | 43% | 1608 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 82% | 40,408 psi | 66% | 2628 fps | 95.4% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 41,829 psi | 69% | 2753 fps | 98.6% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 33,939 psi | 56% | 2618 fps | 99.5% |
| ReloadSwiss RS 62 | <<locked>> | 86% | 33,968 psi | 56% | 2592 fps | 95.3% |
| ReloadSwiss RS 70 | <<locked>> | 88% | 36,840 psi | 60% | 2664 fps | 95.5% |
| Rottweil R 901 | <<locked>> | 80% | 46,659 psi | 77% | 2703 fps | 100% |
| Rottweil R 902 | <<locked>> | 80% | 40,843 psi | 67% | 2618 fps | 99.5% |
| Rottweil R 903 | <<locked>> | 80% | 34,171 psi | 56% | 2530 fps | 97.9% |
| Rottweil R 907 | <<locked>> | 90% | 45,484 psi | 75% | 2720 fps | 95.5% |
| Shooters World Long Rifle | <<locked>> | 86% | 38,551 psi | 63% | 2589 fps | 95.7% |
| Shooters World Match Rifle | <<locked>> | 80% | 43,033 psi | 71% | 2694 fps | 100% |
| Shooters World Precision | <<locked>> | 80% | 39,001 psi | 64% | 2602 fps | 99.3% |
| Shooters World SW4350 | <<locked>> | 90% | 41,582 psi | 68% | 2674 fps | 95.4% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 35,331 psi | 58% | 2582 fps | 97.4% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 44,193 psi | 73% | 2703 fps | 97.9% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 42,540 psi | 70% | 2684 fps | 99% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 44,498 psi | 73% | 2621 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 36,927 psi | 61% | 2487 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 90% | 43,511 psi | 71% | 2644 fps | 95.7% |
| Somchem S321 | <<locked>> | 80% | 49,879 psi | 82% | 2805 fps | 100% |
| Somchem S335 | <<locked>> | 80% | 43,918 psi | 72% | 2618 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 44,034 psi | 72% | 2700 fps | 99.2% |
| Somchem S355 | <<locked>> | 80% | 35,056 psi | 58% | 2536 fps | 97.9% |
| Somchem S365 | <<locked>> | 80% | 25,266 psi | 41% | 2356 fps | 95.2% |
| Vihtavuori N130 | <<locked>> | 80% | 50,299 psi | 83% | 2680 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 44,875 psi | 74% | 2615 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 40,393 psi | 66% | 2598 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 41,089 psi | 67% | 2612 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 33,402 psi | 55% | 2474 fps | 98.6% |
| Vihtavuori N160 | <<locked>> | 84% | 33,837 psi | 56% | 2526 fps | 95.4% |
| Vihtavuori N530 | <<locked>> | 80% | 46,253 psi | 76% | 2720 fps | 99.9% |
| Vihtavuori N540 | <<locked>> | 80% | 39,421 psi | 65% | 2595 fps | 100% |
| Vihtavuori N550 | <<locked>> | 84% | 33,272 psi | 55% | 2526 fps | 95% |
| Vihtavuori N555 | <<locked>> | 92% | 31,821 psi | 52% | 2566 fps | 95.7% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 29,617 psi | 49% | 2395 fps | 96% |
| Winchester 748 | <<locked>> | 80% | 46,006 psi | 76% | 2769 fps | 100% |
| Winchester 760 | <<locked>> | 90% | 42,525 psi | 70% | 2749 fps | 95.5% |
| Winchester StaBALL HD | <<locked>> | 96% | 29,834 psi | 49% | 2572 fps | 96.4% |
| Winchester StaBALL Match | <<locked>> | 80% | 41,959 psi | 69% | 2687 fps | 99.3% |
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 .338 Blaser Mag. loaded with the .338 | 200gr | CutEdge ESP Raptor. ReloadSwiss RS 60 delivers the highest muzzle velocity at 3,022 fps; across all powders the maximum-charge window runs from 1,759 fps to 3,022 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 (420 MPa), the top charges use 56–90 %, leaving at least 10 % headroom. The 200.0 gr projectile in 0.338" calls for a 1:15.0 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, Hodgdon Superformance, Alliant Reloder-17 rank at the top here: for .338 Blaser Mag. with the .338 | 200gr | CutEdge ESP Raptor 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.