Not sure about case capacities but the .405 case
Tuesday, August 13, 2019, 12:11

necked to .366 has got to be close to the 9.3x74R. I know straightening the case walls and a sharp neck to enhance burn performance. The trick thing about both is the body is not all that big in diameter. This really helps with the surface area putting pressure on the breachface. Only so many pounds for the square inch available. Compared to say a .45/70 or .348 case head area. I don;t fully understand all the dynamics but I now less is better for the TC chassis. My FA2008 is very limited as to how big a case it can manage due to the top locking bolt.

Those powders selected to burn great in a shorter barrel would really be a boon for your rifle loads.

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