Sorry I miss read your post , you were asking about 52 grain sierras and I was talking about 52 grain speer hp varmints.Thanks, just knowing the throat in the Tikka tends to be short, is encouraging. When 22-250 rounds are seated to SAAMI O.A.L., they look comically short. However, the last rifle of this caliber that I owned, loved that seating. It runs against everything I know on the subject, but if it ain't broke, don't fix it.
My benchrest guns, for the most part, like a square land mark on the bullet when fully seated.