I perfer a more modern case than a Swift.If for no other reason than im not a fan of trimming.If you took a Swift and fireformed it to min body taper and 30 or 40 degree shoulder
The trimming-stretching issue would go away.
But that being said there is somthing to be said for a straight up factory chamber.Its simple and can be sold if needed.
At practical distances of 600 or less.I dont see a problem with the bullets he'd have to use in the 1-14.And Ill go so far as to say that at 400 yards or less the 1-14 will shoot tighter groups and kill more vermin than the heavy turd chit you like so much.Dont get me wrong.Heavy turds have there place.But if im going to screw with a heavy turd.I would want a bigger gun.YMMV.
dave

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Only accurate rifles are interesting.