Gunsmithing M14 Barrel Throat

[DrifterH]

Does anyone have a good picture of what the throat should look like on a new barrel? It would just be good to have as a reference when looking at used USGI ones. Thanks in advance.

 

[2156SMK]

Re: M14 Barrel Throat

There will not be any wear.
The edges of the rifling (leade) where it terminates into the freebore will have sharp edges.
As the throat wears, the edges of the rifling at the leade get rounded and eventually there will be gas checking in the grooves.

 

[colchester]

Re: M14 Barrel Throat

There is a borescope pic about half way down this thread in Dave Tooleys post
borescope pic of throat

 

[DrifterH]

Re: M14 Barrel Throat

Thanks for the input gents...