sksshooter says,

quote:

...so like homebrewer, I welded a wrench to it.

I tighten mine down to just snug by turning the handle on my pencil sharpener-based, hand-powered lathe thing. Never had one get loose. I can trim and chamfer a case in 24 seconds. When I scrape the crud from the primer pockets, I open the drill chuck to almost maximum, put the case in mouth first and tighten the chuck by hand to just snug enough to hold the case. Then I use my RCBS primer pocket brush to scrape that stuff out in about three revolutions. The chuck will stay set such that I can pop cases in and out of it about ten to twelve times before it loosens. To uniform and chamfer the flash hole, I secure the RCBS primer hole uniformer into the chuck and zap those through in just a few seconds. If I had a half-inch chuck instead of the 3/8-incher you see there, I could do .30-06 brass and the like...

would i benifit from uniforming the flash hole? i just bought the rcbs case prep station and have 1 station open on it that i thought about adding a flash hole tool to but thought it was one of those things that is not really needed.

I uniform the flash hole on cases that I will load for accuracy ammo. I do it in the 300WSM ammo that goes through my target bitch. I do it in the Winchester brass I use in my target ARs and my T/C Encore, which shoots very accurately. I've only done it once, but I shot a .076-inch, three-shot group with the T/C from 100 yards, from a Sinclair machine rest and a Protektor 13B bag. I do not uniform the flash hole in my .223 plinkin' ammo. I do not uniform pistol ammo.