I have a new, unfitted, (no extractor cut), 7.62 NATO barrel on my bench, marked Parker Hale and proofed to 20T.
As it is threaded 14 TPI, it would appear to be for a T4.
The catch is that it is a whisker shy of 30 inches long and all the info I have on T4 rifles (so far), only mentions 26 inch barrels.
Any thoughts?
Cheers.
