i have another question, I tried pulling some bullets with an rcbs bullet puller with the .40 collet, no dice very hard to get them out, VERY!! I read when you expand the case mouth to expand just enough so the bullet will sit, the bullets seat easily enough, the case does not show signs of buckling, now the question, should I flare the case mouth more ?? I made up some dummy bullets by backing off the crimp all the way, seated the bullet to 1.260, then backed the seater out and hand turned the crimp down without using the lever on the reloader, removed my barrel from the gun and they dropped in nice with no resistance, put the gun together and they cycled great. Should I flare the case mouth more ?? I ordered 1000 RMR 180 gr bullets, waiting on them, picking up the Blu Dot this weekend. Thanks in advance for any answers

I want to thank you guys for all your help, kinda figured it was the plated bullets, going to try the RMR 180 gr full metal jacket, and the blu dot powder next, just have to shoot up what I reloaded, or pull the bullets and start over, thanks for the info on the crimp also. The gun is fairly new maybe 600rds thru it. Oh yea by the way I'm using sig and some starline brass, whichever Cabelas in Hamburg has when I get out there. Again thanks, the 10mm seems to be an awesome round

I am at a loss, not a veteran at reloading, but not an amateur. I bought a Kimber 10mm Kimber Eclipse, I have a mess of 45's I reload with 5 gr bullseye 230gr extreme copper plated round nose and can take out the bullseye when I shoot. I reload 10mm with longshot 180 gr extreme copper plated bullets, have tried starting at 8 gr going up in progression to 9.5 gr and throw the bullets all over, cannot get a decent group, can anyone tell me what I am doing wrong ?? The brass looks good, no sign of pressure, the .45's I don't really put a crimp on them, tried doing the same with the 10, also tried crimping to where you see a ring about 1/16" !! Did a lot of research on line and a large majority use longshot, I see blu dot is used quite a bit also, should I try a different powder ?? Hope someone could help me figure this out, thanks in advance frustrated