.223 t8 mod to fit .270

Well that is not correct, PES themselves state that you must have a minimum of 1mm over bullet diameter for clearance. This is due to warpage during the welding procedure, and because quite often the baffles tilt in the tube when the crimp is being applied. If you speak to Julian at JMS then he will tell you this himself.

I dial in the bore to less than .0003 TIR and then check the threads with an indicator, you soon find out how good the alignment of the threads is.


which bit? I cant see anything on the website but I can only go on what Steve Kershaw told me and he distributes them he should know
 
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