Ive heard both ways on this. I was told you just have to run a reamer in it and i was also told you have to set the barrel back first. What was your experience.

Go ask a competent gunsmith and see what he says.....if he says you just run a reamer in it then you know he's not a competent smith!

Out of curiosity.....was you told what velocity to expect?

I hunted with a 25-06 IMP for a number of years. If there was any gain you could not recognize it in the field.
On simply running a reamer into an existing chamber, I've done this a number of times doing 8mm-06s but not all successful. One barrel, once fired, showed a witness mark where the neck of the 8x57 stopped. The mark was not concentric. Without a continuous piloted reamer you run the risk of an (EGG)centric chamber. Not having a whole lot of experience in this endeavor I don't know how severe the chamber run out can be. roger

I had a 25-06 that wouldn't shoot and we talked about reaming it out but the gunsmith recommended rebarreling it. We put a stainless Hart barrel on it and chambered it in 25-06 Ack Imp and it shoots great. I chronoed the 100gr Sierra's at 3550mv. I have shot groups under .75" at 200yds with it.

One of my buddies is having a 25-06 AI built as we speak. I am looking forward to shooting it when he gets it this spring.

JD338

thanks for the advice guys.

Lloyd,

Contact Rob Canze at Williams Gun Sight in Davison, MI. Rob built my 280 AI that is a tack driver. He built a 30-06 AI for my buddy and now building the 25-06 AI. Rob is an exellent gun smith who knows how to fit the pipe and make it shoot. He builds a lot of AI too.

JD338

quote:

Originally posted by Lloyd Smale:
i was also told you have to set the barrel back first. .

Properly done the barrel should be set back. The standard '06 go gauge becomes the no-go gauge for the Ackley. Brass should be a slight crush fit to fire-form. The minimum it should be set back is around .010" and if it has sights you'd need to set it back one full turn.