converting 5.56

Hey everybody I’m hoping somebody here could give me some guidance. I recently got the tools to convert .223/556 brass into 300aac. I’m using the RCBS short base dye for sizing. Trimming the case to 1.360. I’m loading Hornady 150gr HPBT. I measured the neck thickness (only using brass with .013...

I finally got my Hornady Neck Trimmer to use for my .300 AAC Blackout reloading. Not because I’m accuracy focused...but because I have some salvaged 5.56 cases. After processing and loading they won’t fit in my PSA barrel, as the brass is too thick at the neck. Here’s where it gets...