Anyone have any experience with roll crimping? I know it's labor-intensive, but I'm a low-volume reloader, mostly for hunting applications. I have a MEC 600Jr for 20 gauge (and a set of 28ga. dies) and have a devil-of-a-time getting good crimps with some hulls. Also, I have an old Stevens 520 pump in 16ga. that I believe has a 2 9/16-inch chamber, so I'd like to do some 2 1/2-inch for it. I'm thinking of the BPI roll crimping tool. Any advice or practical experience on this? Thanks. Good hunting and good luck.