Gentlemen,
I'm in the process of overhauling my 22-243. I'm changing out the H-S for a T4 and a few other things. I had a 22cal. 1 in 8 twist Shilen chrome moly barrel under my bench that I bought for a 223 AI project that never got started so I decided to put it to work.
I dialed the barrel in on my lathe and cut the tenon, counterbore, and threaded. I predrilled the chamber a couple hundred thou short and cleaned it up with a boring bar and moved on to the reaming.
As soon as the reamer cleaned everything up and started getting a full bite progress required more and more pressure on the handwheel until I basically came to a complete stop. I pulled the reamer out, cleaned out the chamber and found that everything looked good. Tried again and couldn't get it to start cutting with normal force. I then predrilled the chamber a bit deeper and trued it up with the bar. I tried the reamer again and was able to finish out the chamber without any more problems.
I've had this happen before with chrome moly barrels. One common factor has been a smooth as glass appearance in the chamber.
Here's what I'm using for equipment:
G0509G
Manson floater
GTR thru barrel coolant system with Dascool
PTG reamers exclusively
Running the lathe at 108rpm
I've never had this happen with a stainless barrel, just several chromemoly tubes. Anyone have any input? sorry for the long-winded post.
I'm in the process of overhauling my 22-243. I'm changing out the H-S for a T4 and a few other things. I had a 22cal. 1 in 8 twist Shilen chrome moly barrel under my bench that I bought for a 223 AI project that never got started so I decided to put it to work.
I dialed the barrel in on my lathe and cut the tenon, counterbore, and threaded. I predrilled the chamber a couple hundred thou short and cleaned it up with a boring bar and moved on to the reaming.
As soon as the reamer cleaned everything up and started getting a full bite progress required more and more pressure on the handwheel until I basically came to a complete stop. I pulled the reamer out, cleaned out the chamber and found that everything looked good. Tried again and couldn't get it to start cutting with normal force. I then predrilled the chamber a bit deeper and trued it up with the bar. I tried the reamer again and was able to finish out the chamber without any more problems.
I've had this happen before with chrome moly barrels. One common factor has been a smooth as glass appearance in the chamber.
Here's what I'm using for equipment:
G0509G
Manson floater
GTR thru barrel coolant system with Dascool
PTG reamers exclusively
Running the lathe at 108rpm
I've never had this happen with a stainless barrel, just several chromemoly tubes. Anyone have any input? sorry for the long-winded post.
