I was working up some loads and I noticed that some brass has more room inside the case than others. I took a pic.
All brass is range pick up. All have been processed on my 650.
Powder is 10.0 gr AA7
Left to right (Hornady, Speer, Win, Xtreme)
Basically, Hornady has more room than most and Xtreme has the least. All the other brands seem to be about the same.
Loading 7.0 WAC and there's no problem. If I want to load AA7 I guess I'll need to sort brass.
Unfortunately, the last box of mixed brass I got was full of Xtreme!
I measured the length of these cases and they all were around the same. I guess it's due to case thickness?