William T. Watts
New member
Nosler chambering of their 280AI has not been widely distributed, what I have read said only they standardized the chambering nothing about how. It has been widely known if a standard 280Rem chamber was cut to P.O. Ackley's design that it usually was .004" longer if you used a standard 280Rem gauge, if you used the no go gauge it may close fully or not depending on the length of the parent chamber that was cut. It would seem if that is indeed true then it would be O.K. to use a standard 280Rem cases to fire form in the Nosler chamber. What is new the revelation the Nosler chamber is shorter and has a crush fit, I suppose Nosler sold more ammunition and cases by not advertising this to the shooting public. What would confirm this if a standard go 280Rem chamber gauge were used in the Nosler AI cut chamber it would not allow closure on the gauge. That would answer this question once and for all.. William
Last edited: