I had this same problem with all my Hornady rifle dies. The worst of them all was for my .22-250. At that time, approx ten years ago, Hornady said there is nothing that can be done to fix it.
On a hunch I tried the Redding Competition Bushing dies "$$$ :shock: ". The problem vanished, with the...
That is true...I use to have an abolt II w/ boss some time ago, with the exception that it was chambered in .300 Win Mag. .
Tried a few different factory loads, everything from 150gr Winchester Failsafe to Federal GM 190gr HPBT. And at 100yds I was getting very consistent groups, about the...