Hi everybody. So I got my press set up today and put together my first load. But I've got a few questions I'd like to ask you guys. (because I'm paranoid and would like to make sure that what I'm doing is safe) This is a really fun, yet frightening hobby. First, how do you cross check your information if you can only find one source for your load combination? For me it's AA2230 with a 50gr Sierra Blitzking bullet. All I could find was info from Sierra. Second is how can you be sure you have 5.56 brass vs .223? I'm re-using brass I already shot up from HSM. On the head is says LC 08 with the Nato symbol, but the primers weren't crimped. Lastly, if that is 5.56 brass, how much less powder should I use for starting loads? Here's the load I put together last night. Does anything look out of whack? Case: LC 08 Primer: CCI no.400 Powder: AA230 @ 24.9gr Bullet: Sierra 50gr Blitzking OAL: 2.250-2.249 Very slight crimp Planning on shooting this out of my Daniel Defense M4 midlength. Thanks everyone.