Originally Posted by boomtube
What's "best" is purely a matter of opinon.
I much prefer a proper pocket reamer chucked in an electtric drill motor. (NOT with a drill bit, counter sink or chamfering tool!)
Well, that shoots to crap how I do it.
I've got a wilson chamfer/de-burr tool I chuck in my big cordless, put a decapped crimped round on it and hit the trigger for a quick burst. I've done about 1000 already with no problems. The ream is similar to the re-man ammo out there. I will transition to a swager eventually, but for now I ream.