even on an 11 yr old thread. I have one on a Model 70 action.... and compared to several friends who have the AI version...
mine is more accurate ( done by one of the last guys to train under Ackley, who recommended not going with an AI version), plus mine gets 50 to 75 more Fps MV, that 3 friends AI's get....

YMMV...

But I took Bob West's advise and glad I did....he may not have been P.O. Ackley, but training under him, is about a close as one could get...


"Minus the killings, Washington has one of the lowest crime rates in the Country" Marion Barry, Mayor of Wash DC

“Owning guns is not a right. If it were a right, it would be in the Constitution.” ~Alexandria Ocasio Cortez