Hello all! New here and trying to learn. I did search around a bit and didn't find exactly what I was looking for.
Working with a .54 Lyman Great Plains Hunter. I am wanting to start casting and would like to be able to properly size my conicals as well.
My question is...What is the best way to measure the bore of a traditional muzzleloader since I can't push a slug all the way through? Can I mic it?
Also, once I have that measurement what is the rule of thumb for conical sizing? Is it .001 under or over bore size (or maybe groove size )?
Thanks a ton for any and all help!!