Chambering a short barrel

twosmokinspades

twosmokinspades

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I have plans to make a 20 inch barrel for a 308. The problem is I can only do longer than 24 inches through my head stock (I have an out board spider) I usually use a long reach dial indicator on each end to get my good result. But cant do that with a short barrel.
I have a viper 3 in 1 lathe fixture I plan on using to hold the barrel. Because I can only indicate 1 end of the barrel I want to get some sort of a rod for indicating the bore. I have trie to use the just the indicator but I dont feel I am with in acceptable limits of run out.
So, my question is what rods would be better Griiters, (Grizzly) indicator or range rods. I have seen a few reviews on line about each but nothing that say 1 is more affordable or easier to use than the other. Right now I am leaning towards the indicator rod. There may be a short barreled 6.5 creedmoor in the works soon too.

Tried to fix the type o in the header but obviously I seem to be stupid because I cant figure out how to change it, or catch my own spelling mistakes when I first proof read it.
 
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Good lord. Run the shank in the steady-rest. No need for all this other extraneous crap.

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In the steady rest. Do a search for chambering in the steady rest. Spearchucker on Practical Machinist has the best tutorial. I have been using his method on many occasions and never had a problem.

GST
 
A third vote for the steady rest... a lot of record setting accuracy has been done that way...
 
Run an annulus on the outside of the barrel shank ahead of the threads and indicate it true to the bore when using your 4 jaw chuck, or as previously stated employ the steady rest and dial it in true to the bores axis. D.H.
 
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