To stay compliant with the Louisiana primitive rifle rules, I must use a .38 or larger cartridge. I currently shoot a .444 Marlin since my factory choices are either that or 45-70 for a solid 200 yard whitetail cartridge at or above .38 in a H&R. I want something different, just to do it. Since .375 rounds up to .38, that is what I would like to make. I considered the 38-55, but they are hard to find and expensive when found. Also they apparently do not shoot the widely available .375 jacketed bullets very well. So, my next Handi will have a custom barrel with a .375 bore, but what chamber?
Anyone have a better suggestion than the .375 JDJ for my purposes?