-
I had this problem with PPU ammo in .243. Apparently Tikka chambers are cut pretty tight and I believe PPU uses once-fired cases for their budget ammunition.
There's really nothing you can do. I've had the same problem with once-fired .243 cases bought from a reputable dealer and .223 range pickup. I have to full length resize any cases I want to use in my Tikkas when I reload.
Do NOT try to force the bolt closed. See if the ammo vendor will take it back. SG Ammo did this for me.
