So I ended up with an extra 50 cal ss barrel. Thinking about turning down the profile or adding flutes to make the barrel lighter. Curious what wall thickness should be maintained at the muzzle? My 700 centerfire mountain rifle barrel sure is thin. I had kicked around some ordering a 45 cal barrel for it but I haven't found anything cheaper than a McGowan prefit and $300+ - basically have given up on finding a 45 cal factory barrel. I don't really need a smokeless setup, but would like something lighter.