Load Specifications
Bullet Manufacturer:Cutting Edge
Bullet Weight:200 gr
Bullet Diameter:0.338"
Bullet Length:<<locked>>
Caliber:.338 Win Mag. load data
Case Length (l3):2.5"
Cartridge Length (C.O.L.):<<locked>>
Case Capacity:86 Grains of Water
Primer Size:Large Rifle (LR)
Barrel Length:24"
Max. allowed Pressure:62,366 psi
Load data in caliber .338 Win Mag. with .338 | 200gr | Cutting Edge Maximus FCG bullet and 95 powders. The key underlying parameters are shown in the table above.
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% | 54,882 psi | 88% | 2730 fps | 100% |
| Accurate 2495 | <<locked>> | 88% | 53,621 psi | 86% | 2756 fps | 100% |
| Accurate 2520 | <<locked>> | 84% | 55,303 psi | 89% | 2818 fps | 100% |
| Accurate 2700 | <<locked>> | 90% | 56,333 psi | 90% | 2802 fps | 97% |
| Accurate 4064 | <<locked>> | 90% | 53,751 psi | 86% | 2805 fps | 100% |
| Accurate 4350 | <<locked>> | 98% | 53,359 psi | 86% | 2881 fps | 99.4% |
| ADI AR 2206H | <<locked>> | 86% | 54,012 psi | 87% | 2828 fps | 99.9% |
| ADI AR 2208 | <<locked>> | 92% | 55,100 psi | 88% | 2828 fps | 99.7% |
| ADI Benchmark 8208 | <<locked>> | 86% | 56,434 psi | 90% | 2831 fps | 100% |
| Alliant AR-Comp | <<locked>> | 84% | 53,824 psi | 86% | 2759 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 88% | 53,650 psi | 86% | 2946 fps | 99.7% |
| Alliant Reloder- TS 15.5 | <<locked>> | 92% | 55,100 psi | 88% | 2851 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 90% | 55,622 psi | 89% | 2871 fps | 99.8% |
| Alliant Reloder-16ᴾ | <<locked>> | 100% | 54,563 psi | 87% | 2936 fps | 99.7% |
| Alliant Reloder-17 | <<locked>> | 96% | 55,999 psi | 90% | 2976 fps | 100% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 38,957 psi | 62% | 2664 fps | 98.4% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 43,511 psi | 70% | 2822 fps | 97.6% |
| Baschieri & Pellagri 107 | <<locked>> | 86% | 53,795 psi | 86% | 2844 fps | 99.5% |
| Bofors RP3 | <<locked>> | 92% | 55,608 psi | 89% | 2867 fps | 100% |
| Bofors RP7 | <<locked>> | 96% | 55,912 psi | 90% | 2838 fps | 97.2% |
| Hodgdon Benchmark | <<locked>> | 84% | 54,824 psi | 88% | 2766 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 86% | 55,970 psi | 90% | 2861 fps | 100% |
| Hodgdon CFE223 | <<locked>> | 82% | 54,273 psi | 87% | 2907 fps | 99.8% |
| Hodgdon H380 | <<locked>> | 90% | 53,214 psi | 85% | 2828 fps | 99% |
| Hodgdon H414 | <<locked>> | 98% | 56,086 psi | 90% | 2927 fps | 97.9% |
| Hodgdon H4350 | <<locked>> | 94% | 53,316 psi | 85% | 2835 fps | 96% |
| Hodgdon H4895 | <<locked>> | 86% | 54,520 psi | 87% | 2838 fps | 100% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 50,720 psi | 81% | 2808 fps | 99.9% |
| Hodgdon LEVERevolution | <<locked>> | 88% | 53,882 psi | 86% | 2871 fps | 100% |
| Hodgdon Superformance | <<locked>> | 96% | 53,127 psi | 85% | 2904 fps | 96.9% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,462 psi | 57% | 1732 fps | 100% |
| Hodgdon VARGET | <<locked>> | 88% | 55,811 psi | 89% | 2841 fps | 100% |
| IMR 3031 | <<locked>> | 86% | 54,607 psi | 88% | 2825 fps | 100% |
| IMR 4064 | <<locked>> | 90% | 54,737 psi | 88% | 2815 fps | 99.8% |
| IMR 4166 Enduron | <<locked>> | 88% | 54,679 psi | 88% | 2792 fps | 97.5% |
| IMR 4350ᴾ | <<locked>> | 100% | 55,898 psi | 90% | 2858 fps | 97.2% |
| IMR 4451 Enduron | <<locked>> | 94% | 54,186 psi | 87% | 2815 fps | 97.3% |
| IMR 4831ᴾ | <<locked>> | 100% | 53,896 psi | 86% | 2871 fps | 99.5% |
| IMR 4895 | <<locked>> | 88% | 53,505 psi | 86% | 2851 fps | 99.9% |
| IMR 8208 XBR | <<locked>> | 86% | 56,434 psi | 90% | 2831 fps | 100% |
| Lovex D073.6 | <<locked>> | 86% | 53,780 psi | 86% | 2808 fps | 100% |
| Lovex S060 | <<locked>> | 86% | 53,722 psi | 86% | 2759 fps | 99.9% |
| Lovex S062 | <<locked>> | 90% | 54,433 psi | 87% | 2808 fps | 100% |
| Lovex S065 | <<locked>> | 96% | 53,606 psi | 86% | 2808 fps | 98.5% |
| Lovex S070 | <<locked>> | 98% | 54,534 psi | 87% | 2841 fps | 97.7% |
| Norma 201 | <<locked>> | 88% | 56,246 psi | 90% | 2825 fps | 100% |
| Norma 202 | <<locked>> | 86% | 53,374 psi | 86% | 2779 fps | 100% |
| Norma 203B | <<locked>> | 90% | 54,795 psi | 88% | 2861 fps | 99.9% |
| Norma URPᴾ | <<locked>> | 100% | 55,796 psi | 89% | 2917 fps | 99.5% |
| Ramshot Big Game | <<locked>> | 90% | 55,463 psi | 89% | 2887 fps | 99.9% |
| Ramshot Hunterᴾ | <<locked>> | 100% | 54,795 psi | 88% | 2917 fps | 98.4% |
| Ramshot TAC | <<locked>> | 84% | 53,258 psi | 85% | 2795 fps | 98.5% |
| Ramshot Wild Boar | <<locked>> | 84% | 52,852 psi | 85% | 2815 fps | 99.8% |
| Ramshot X-Terminator | <<locked>> | 82% | 53,998 psi | 87% | 2782 fps | 99.8% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 35,969 psi | 58% | 1772 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 82% | 56,057 psi | 90% | 2812 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 90% | 53,476 psi | 86% | 2808 fps | 97.9% |
| ReloadSwiss RS 52 | <<locked>> | 88% | 56,304 psi | 90% | 2943 fps | 99.8% |
| ReloadSwiss RS 60 | <<locked>> | 94% | 55,651 psi | 89% | 2972 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 98% | 52,808 psi | 85% | 2897 fps | 99.2% |
| ReloadSwiss RS 70ᴾ | <<locked>> | 100% | 56,420 psi | 90% | 2986 fps | 99.4% |
| Rottweil R 901 | <<locked>> | 84% | 53,838 psi | 86% | 2759 fps | 100% |
| Rottweil R 902 | <<locked>> | 88% | 53,476 psi | 86% | 2779 fps | 100% |
| Rottweil R 903 | <<locked>> | 94% | 55,434 psi | 89% | 2858 fps | 100% |
| Rottweil R 907 | <<locked>> | 96% | 55,912 psi | 90% | 2838 fps | 97.2% |
| Shooters World Long Rifle | <<locked>> | 96% | 53,606 psi | 86% | 2808 fps | 98.5% |
| Shooters World Match Rifle | <<locked>> | 86% | 53,780 psi | 86% | 2808 fps | 100% |
| Shooters World Precision | <<locked>> | 90% | 54,433 psi | 87% | 2808 fps | 100% |
| Shooters World SW4350 | <<locked>> | 98% | 54,534 psi | 87% | 2841 fps | 97.7% |
| SNPE Vectan SP 11 | <<locked>> | 92% | 53,621 psi | 86% | 2864 fps | 99.8% |
| SNPE Vectan SP 7 | <<locked>> | 86% | 55,332 psi | 89% | 2828 fps | 99.2% |
| SNPE Vectan SP 9 | <<locked>> | 88% | 56,043 psi | 90% | 2854 fps | 99.9% |
| SNPE Vectan Tubal 3000 | <<locked>> | 86% | 54,462 psi | 87% | 2720 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 92% | 54,592 psi | 88% | 2717 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 96% | 53,867 psi | 86% | 2759 fps | 97.3% |
| Somchem S321 | <<locked>> | 82% | 54,244 psi | 87% | 2815 fps | 100% |
| Somchem S335 | <<locked>> | 86% | 53,896 psi | 86% | 2720 fps | 100% |
| Somchem S341 | <<locked>> | 86% | 54,897 psi | 88% | 2822 fps | 99.9% |
| Somchem S355 | <<locked>> | 94% | 55,883 psi | 90% | 2858 fps | 100% |
| Somchem S365ᴾ | <<locked>> | 100% | 50,169 psi | 80% | 2867 fps | 100% |
| Vihtavuori N130 | <<locked>> | 82% | 54,259 psi | 87% | 2684 fps | 100% |
| Vihtavuori N133 | <<locked>> | 86% | 54,708 psi | 88% | 2707 fps | 100% |
| Vihtavuori N135 | <<locked>> | 88% | 53,156 psi | 85% | 2746 fps | 100% |
| Vihtavuori N140 | <<locked>> | 88% | 53,867 psi | 86% | 2759 fps | 100% |
| Vihtavuori N150 | <<locked>> | 94% | 53,795 psi | 86% | 2785 fps | 100% |
| Vihtavuori N160 | <<locked>> | 98% | 55,042 psi | 88% | 2864 fps | 99.4% |
| Vihtavuori N530 | <<locked>> | 84% | 53,447 psi | 86% | 2779 fps | 100% |
| Vihtavuori N540 | <<locked>> | 90% | 55,579 psi | 89% | 2802 fps | 100% |
| Vihtavuori N550 | <<locked>> | 98% | 53,853 psi | 86% | 2867 fps | 99.2% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 42,670 psi | 68% | 2746 fps | 98.4% |
| Winchester 6.5 StaBALL | <<locked>> | 98% | 55,317 psi | 89% | 2844 fps | 100% |
| Winchester 748 | <<locked>> | 84% | 53,490 psi | 86% | 2831 fps | 100% |
| Winchester 760 | <<locked>> | 98% | 56,318 psi | 90% | 2930 fps | 97.9% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 34,969 psi | 56% | 2661 fps | 98.1% |
| Winchester StaBALL Match | <<locked>> | 88% | 55,927 psi | 90% | 2861 fps | 100% |
Start Load - Barrel Length: 24"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2015 | <<locked>> | 80% | 48,631 psi | 78% | 2641 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 41,350 psi | 66% | 2566 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 48,283 psi | 77% | 2713 fps | 100% |
| Accurate 2700 | <<locked>> | 86% | 49,443 psi | 79% | 2690 fps | 95.5% |
| Accurate 4064 | <<locked>> | 80% | 39,117 psi | 63% | 2559 fps | 100% |
| Accurate 4350 | <<locked>> | 86% | 35,070 psi | 56% | 2536 fps | 95.4% |
| ADI AR 2206H | <<locked>> | 80% | 44,817 psi | 72% | 2674 fps | 99% |
| ADI AR 2208 | <<locked>> | 80% | 38,014 psi | 61% | 2520 fps | 97% |
| ADI Benchmark 8208 | <<locked>> | 80% | 46,905 psi | 75% | 2680 fps | 99.8% |
| Alliant AR-Comp | <<locked>> | 80% | 47,311 psi | 76% | 2671 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 40,785 psi | 65% | 2700 fps | 97.6% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 37,710 psi | 60% | 2543 fps | 98.4% |
| Alliant Reloder-15 | <<locked>> | 80% | 40,553 psi | 65% | 2608 fps | 97.8% |
| Alliant Reloder-16 | <<locked>> | 86% | 35,404 psi | 57% | 2552 fps | 95.5% |
| Alliant Reloder-17 | <<locked>> | 80% | 32,590 psi | 52% | 2507 fps | 96.3% |
| Alliant Reloder-23 | <<locked>> | 92% | 30,501 psi | 49% | 2448 fps | 95.1% |
| Alliant Reloder-26 | <<locked>> | 96% | 37,811 psi | 61% | 2690 fps | 95.6% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 43,961 psi | 70% | 2674 fps | 98.1% |
| Bofors RP3 | <<locked>> | 80% | 37,318 psi | 60% | 2546 fps | 98.4% |
| Bofors RP7 | <<locked>> | 90% | 46,340 psi | 74% | 2674 fps | 95% |
| Hodgdon Benchmark | <<locked>> | 80% | 48,602 psi | 78% | 2671 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 80% | 45,803 psi | 73% | 2703 fps | 99.9% |
| Hodgdon CFE223 | <<locked>> | 80% | 50,415 psi | 81% | 2844 fps | 99.4% |
| Hodgdon H380 | <<locked>> | 80% | 38,247 psi | 61% | 2549 fps | 95.9% |
| Hodgdon H414 | <<locked>> | 92% | 46,064 psi | 74% | 2759 fps | 95.8% |
| Hodgdon H4350 | <<locked>> | 92% | 49,995 psi | 80% | 2779 fps | 95.2% |
| Hodgdon H4895 | <<locked>> | 80% | 45,237 psi | 73% | 2684 fps | 99.4% |
| Hodgdon Hybrid 100V | <<locked>> | 84% | 30,443 psi | 49% | 2395 fps | 95.5% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 41,133 psi | 66% | 2651 fps | 99.1% |
| Hodgdon Superformance | <<locked>> | 92% | 46,079 psi | 74% | 2776 fps | 95% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,397 psi | 42% | 1545 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 43,366 psi | 70% | 2635 fps | 99.1% |
| IMR 3031 | <<locked>> | 80% | 44,918 psi | 72% | 2680 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 39,929 psi | 64% | 2552 fps | 97.7% |
| IMR 4166 Enduron | <<locked>> | 82% | 45,295 psi | 73% | 2631 fps | 95.4% |
| IMR 4350 | <<locked>> | 94% | 46,412 psi | 74% | 2700 fps | 95.1% |
| IMR 4451 Enduron | <<locked>> | 88% | 45,150 psi | 72% | 2657 fps | 95.3% |
| IMR 4831 | <<locked>> | 86% | 33,997 psi | 55% | 2493 fps | 95.1% |
| IMR 4895 | <<locked>> | 80% | 41,524 psi | 67% | 2638 fps | 98.5% |
| IMR 8208 XBR | <<locked>> | 80% | 46,905 psi | 75% | 2680 fps | 99.8% |
| Lovex D073.6 | <<locked>> | 80% | 44,005 psi | 71% | 2651 fps | 100% |
| Lovex S060 | <<locked>> | 80% | 44,860 psi | 72% | 2612 fps | 99% |
| Lovex S062 | <<locked>> | 80% | 39,972 psi | 64% | 2562 fps | 99.1% |
| Lovex S065 | <<locked>> | 86% | 39,595 psi | 63% | 2552 fps | 95.3% |
| Lovex S070 | <<locked>> | 92% | 45,324 psi | 73% | 2687 fps | 95.7% |
| Norma 201 | <<locked>> | 80% | 43,888 psi | 70% | 2625 fps | 99.6% |
| Norma 202 | <<locked>> | 80% | 44,150 psi | 71% | 2631 fps | 100% |
| Norma 203B | <<locked>> | 80% | 39,914 psi | 64% | 2595 fps | 98.2% |
| Norma URP | <<locked>> | 86% | 35,346 psi | 57% | 2536 fps | 95.3% |
| Ramshot Big Game | <<locked>> | 80% | 39,494 psi | 63% | 2608 fps | 97.9% |
| Ramshot Hunter | <<locked>> | 92% | 42,090 psi | 67% | 2687 fps | 95.6% |
| Ramshot TAC | <<locked>> | 80% | 46,702 psi | 75% | 2684 fps | 97.4% |
| Ramshot Wild Boar | <<locked>> | 80% | 46,369 psi | 74% | 2707 fps | 99.2% |
| Ramshot X-Terminator | <<locked>> | 80% | 50,546 psi | 81% | 2730 fps | 99.6% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 26,760 psi | 43% | 1585 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 52,591 psi | 84% | 2762 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 82% | 41,220 psi | 66% | 2585 fps | 95% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 42,569 psi | 68% | 2707 fps | 98.2% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 34,664 psi | 56% | 2575 fps | 99.2% |
| ReloadSwiss RS 62 | <<locked>> | 88% | 37,463 psi | 60% | 2612 fps | 95.9% |
| ReloadSwiss RS 70 | <<locked>> | 90% | 40,161 psi | 64% | 2680 fps | 95.9% |
| Rottweil R 901 | <<locked>> | 80% | 47,848 psi | 77% | 2667 fps | 100% |
| Rottweil R 902 | <<locked>> | 80% | 41,858 psi | 67% | 2579 fps | 99.3% |
| Rottweil R 903 | <<locked>> | 80% | 35,114 psi | 56% | 2487 fps | 97.6% |
| Rottweil R 907 | <<locked>> | 90% | 46,340 psi | 74% | 2674 fps | 95% |
| Shooters World Long Rifle | <<locked>> | 86% | 39,595 psi | 63% | 2552 fps | 95.3% |
| Shooters World Match Rifle | <<locked>> | 80% | 44,005 psi | 71% | 2651 fps | 100% |
| Shooters World Precision | <<locked>> | 80% | 39,972 psi | 64% | 2562 fps | 99.1% |
| Shooters World SW4350 | <<locked>> | 92% | 45,324 psi | 73% | 2687 fps | 95.7% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 36,027 psi | 58% | 2536 fps | 97% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 45,049 psi | 72% | 2661 fps | 97.6% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 43,236 psi | 69% | 2638 fps | 98.7% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 45,295 psi | 73% | 2582 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 37,695 psi | 60% | 2448 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 90% | 44,440 psi | 71% | 2605 fps | 95.2% |
| Somchem S321 | <<locked>> | 80% | 50,676 psi | 81% | 2759 fps | 100% |
| Somchem S335 | <<locked>> | 80% | 44,860 psi | 72% | 2582 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 44,788 psi | 72% | 2657 fps | 98.9% |
| Somchem S355 | <<locked>> | 80% | 36,013 psi | 58% | 2497 fps | 97.6% |
| Somchem S365 | <<locked>> | 82% | 27,818 psi | 45% | 2375 fps | 95.8% |
| Vihtavuori N130 | <<locked>> | 80% | 51,111 psi | 82% | 2641 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 45,629 psi | 73% | 2575 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 41,365 psi | 66% | 2562 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 41,771 psi | 67% | 2566 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 34,185 psi | 55% | 2434 fps | 98.3% |
| Vihtavuori N160 | <<locked>> | 84% | 34,780 psi | 56% | 2490 fps | 95% |
| Vihtavuori N530 | <<locked>> | 80% | 46,905 psi | 75% | 2674 fps | 99.8% |
| Vihtavuori N540 | <<locked>> | 80% | 40,321 psi | 65% | 2556 fps | 100% |
| Vihtavuori N550 | <<locked>> | 86% | 36,419 psi | 58% | 2539 fps | 95.4% |
| Vihtavuori N555 | <<locked>> | 92% | 32,851 psi | 53% | 2526 fps | 95.3% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 30,356 psi | 49% | 2356 fps | 95.5% |
| Winchester 748 | <<locked>> | 80% | 46,760 psi | 75% | 2723 fps | 100% |
| Winchester 760 | <<locked>> | 92% | 46,267 psi | 74% | 2762 fps | 95.8% |
| Winchester StaBALL HD | <<locked>> | 96% | 30,719 psi | 49% | 2526 fps | 95.7% |
| Winchester StaBALL Match | <<locked>> | 80% | 42,757 psi | 69% | 2644 fps | 99.1% |
ᴾ possible press load - work up slowly to this load while watching for signs of excessive pressure.
This overview compares 113 powders for .338 Win Mag. loaded with the .338 | 200gr | Cutting Edge Maximus FCG. ReloadSwiss RS 70 delivers the highest muzzle velocity at 2,986 fps; across all powders the maximum-charge window runs from 1,732 fps to 2,986 fps. Accurate 3100 gives the best case fill at 100 %, and 113 of the 113 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (430 MPa), the top charges use 54–90 %, leaving at least 10 % headroom. Accurate 3100, Accurate High Country, ADI AR 2209 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. As outliers, Accurate High Country, ADI AR 2209, Alliant Reloder-19 burn incompletely and react more sensitively to barrel length and temperature. Always begin at the start load and work up in small increments while checking case and primer for pressure signs.