I've not been super excited about Hornady brass in 243. This was in their factory load. The rim was noticeably thinner than other brands. Ruger MkII wouldn't hold onto it.
May have just been the one box.
My .243 Ruger MkII won't hold onto Hornady brass either. I bought two boxes - 50 each - of new unprimed. All the rims are bad that way.
Rifle feeds and ejects fine with other brands.
