Re: AR's and chrome lined barrels.
I am gona throw something else in the mix here.
I have an hk sl8 that came with a 1 in 7 bbl.
It shoots fmj like @HIT. But when i run vmax bullets i can put 10 rounds in a dime at 100 yrds.
I personally think for an ar you should get a chromed bbl just find the ammo it stablizes for pinpoint accuracy.
Who are you going to serve today?