Well ran into a little snag with my Lyman 452374 cast boolits. Cast up a few in my first session, and thought I had about 60 keepers. Ran them through my RCBS LAM2 with my .451 sizing and got a bunch of them done, when it occured to me they were sizing extremely easy, and I didn't see any marks from sizing. Measured them with my caliper and they were measuring around .4495 to .451. The boolits look good, just undersized. Not sure it is because I am using straight COWW's or what.