[van462]

I found a pretty quick way if you have a small band saw. I cut a wood block to 1.4 inches wide. Bores 10 3/8 holes in. I just slide 10, 223 brass into the holes in block. they run thru the saw like butter and size them. Like gos said you are necking down and they glide thru the die. Then do finial trim on a Lyman case trimmer. Works for me but I had every thing already laying around. Makes trimming brass very fast