I never slugged it Steve but I THINK it is either a 3.11 or .312.
It could even be a tight .310!
I know it shoots everything from Barnes TSX’s to the old C.I.L.
KKSP’s super well.
I have heard that the Rugers had larger bores but know several owners that have a few that really shoot well.
Personally I was hoping they would bring it out in an RSI or a 1B simply because I prefer them over the 1A configuration
Cat

Last edited by catnthehat; 09/02/19.

scopes are cool, but slings 'n' irons RULE!