Hi,
I do not have a lathe and need to thin some rim diameters (30-30 -> 225 Win). I’m a metal working noob, but I have a proper, variable speed drill press. I’ve read people chuck the case in a press and use a file.
What kind of metal file would I use? I thought it would be a single cut, but then I read a double cut is better for brass. Then I read about “mill files” for use on a lathe. But that seems like over kill.
I’m trying not to go from rimmed, to rebated rim, in .00002 seconds. LOL.
Any thoughts from experienced people would be greatly appreciated.
Thank you.