The chromed lined bores and chambers are done with industrial hard chrome. This allows the gun manufacturer to use a lesser grade of steel for the barrel since its not seeing any wear.
The chrome lined bores and chamber is done for a longer barrel life and a longer life in accuracy too.
Some of the sks's and ak 47's have between 100k to 200k rounds through them and there accuracy isn't like new but still decent.
Last edited by BigBill; 09-18-2014 at 09:25 PM.
|