Pretty much. Seekins have just released a new rifle with a 3 lug bolt and "exotic materials" on the bolt head so that it can handle hot rounds like 277 Fury. I don't think there's any way you're putting these into a plain steel 2 lug Tikka, Remmy, Howa.
Oh well. It's not like 7 PRC isn't already a sufficiently big sledgehammer.
Bookmarks