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Post by jmunger on Sept 16, 2021 9:46:13 GMT -5
I am working on putting together my own smokeless muzzleloader. I will purchasing Hankins Mesa Precision Barreled Action 45 Caliber SPML #17 Barrel Contour. What would you experts suggest as a max load using 4198 powder and 250-300 gr pittman bullets. Thanks for the advice and info!
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Post by Hank on Sept 16, 2021 10:37:26 GMT -5
78 Grain of IMR-4198 or H-4198 with the 275 grain bullet will produce approx. 3000 FPS and is what I call the max load for that powder and bullet combination. This is a super accurate load and a proven performer.
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Post by Richard on Sept 16, 2021 15:08:40 GMT -5
A 300 Accumax or Aeromax and 75 gr. of the same powder should put you down around 2900. You could go abut 2 grains lighter and use N-120 for the same results.
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