yarbsea

All fixed. For whatever reason, I dropped some factory ammo into the dillon case gauge, and noticed that it sat ALOT lower than the ammo I was making, and was even a bit (or at least appeared to be a bit) below the lower marking... so anyway, I adjusted the sizing die to match the factory ammo and now it's smooth as glass, shoots great..ejects great..win!

yea, they check good (far as I can tell) in the dillon case gauge

So I put together my first batch of .223 I hand-cycled them through my ar-15, and about 30% are hard to manually eject...i.e. it takes alot of effort [or more than the rest] to pull the charging handle back and eject them... Is something setup wrong? They were sized correctly, and I measured the hard-to-eject ones and everything checked out!

So I set my new 550B up, loaded about 50x .223 rounds. Everything was setup as per the video. I checked the brass before and after resizing to make sure they didn't exceed the maximum case length. I don't have a trimmer. So now I am paranoid that since I adjusted the resizing die with a random "in spec" piece of brass, that it's not set correctly. Should I have used a trimed to .1750 brass to adjust the resizing die, or does that not even matter to it's operation? It is set to produce a headspaced peice of brass as per the case guage...