i have been playing with the AR-15 platform for going on 30 years now.
my first experiences with it was -like most folks from my first joining the service.
the first weapon i was handed was a colt m-16a1. it looked like it had fired 10,000,000 rounds! loose as a goose! and prone to jamming. the barrel had about a 4 inch patch of chrome bore lining stripped off near the gas tube port. in that area the rifle grooves were very, very week.
the odd thing though was the rifle still shot OK. it could print a three shot group on the short zero one on top of the other. but i digress.
my question of the day is
is chrome lined bore and chamber really all that important?
all my 5.56 AR types to date have chrome bores and they have no problems with function on about any ammunition. even the russian steel cased stuff.
my only non chromed barreled ARs are of the 7.62x39 type. i have an old colt and am building a del-ton carbine. the old colt has fired maybe 500/600+ rounds of mixed 7.62x39 ammo with no problems that wern't from mags. i have even fired some corrosive yugo brass ammo through it. after a quick clean up with windex/hot soapy water/ hot water and then a lube down it cleaned up real good. took only a little more effort than my AK's after a big dose of the old commie corrosive stuff. i also have a yugo AK
so my experience so far with the non-chromed lined bores is good overall but i haven't fired but a fraction of the ammo.
so far i still prefer the chromed barrels but with things being so scarce, backordered for up to two years i took the plunge and bought a del-ton middy no-chrome because it was close to what i wanted and in stock at the time.
has anybody had problems with a non chromed 5.56 barrel due to it not being chromed?? like feeding problems. rounds sticking in the chamber and the like?