atheiss, there are a couple of things that I didn't see mentioned in your previous posts so I'll bring them up now. First, you didn't say which die you're using to reform your .223/5.56 brass so I'll assume you might be using the Lee sizing die. If so, be sure that you check to see whether you have chambering issues with the rounds that you produce. Lee specifically states that their sizing die IS NOT a reforming die. It doesn't form to minimum SAAMI case diameter but rather to middle of the range. If you have a tight chamber, you may have problems, but if you have a loose chamber you might be ok. If you do have a problem, consider using a small base sizing die like RCBS.

Secondly, make a copy of the Good/Bad Brass sticky in the Handloading area on the 300BlkTalk.com forum. I keep the list in my reloading area. It talks about case wall thickness being the major reason for rounds that won't chamber and it has a list of the manufacturers and whether their brass is good or bad. This is the reason that many 300 BLK reloaders use only LC brass since it's always GTG.

I hope I didn't bore everyone and some of this is useful info for you.