bought 1000 berrys .40 155 gr. fp plated and the best i can figure out is unless i buy a undersized die they are worthless. i cannot get reliable reloads after loading 200+, trying 5 brands of brass, and a lee fcd i still get easy setback in at least 10 percent of rounds UNACCEPTABLE! OK let me start at the begining while loading my first batch using hornady dies and a 1.125 col i stoped at around 50 or so to check col,powder weight ect. and noticed that one bullet was seated very deep into case. i was able to push bullet all the way in with just my finger and light pressure i checked a few more and found many others with same signs. at first i thought not enough crimp but that was not it. so i borrowed lee factory crimp from friend he swore it would fix problem nope no good. so i tried different types of brass 5 i total ( federal, winchester, speer, starline, cci). i tried adjusting the col but no luck. so i broke down and bought rainier bullets which is what i have always used in the past. the rainier are .401 in diamater the berrys .400 i went back to my normal reloading methods (light crimp) with the rainiers and i cannot get more then .002 of setback even when pushing down on table hard enough to hurt and leave a dent in table. who would have thought .001 can make so much difference. so the question now is if i should get undersized dies just for 750 or so rounds. i know many of you use berrys and im not saying they are bad just that i have a had a bad experience with them so pls watch out as any setback in a .40 can be dangerous.