This relates to accuracy, and I'd like to hear about actual performance being experienced.
In general, I've heard that chrome-lined barrels are supposed to usually be less accurate than unlined match-grade barrels.
But one of the big AR makers had lots of text on their web page about how their chrome lined barrels really do peform as well and match barrels, and should be preferred because they last so much longer.
So, what's the actual 5-round group MOA TFL shooters are getting from their AR-15 barrels? Please report the twist rate and bullets used, as my limited experiments with a Colt HBAR 1:7 show 2.5 moa with 55-gr FMJBTs, and 1.25 MOA with Sierra 69-gr HPBT match bullets. Hornady/IMI 63-gr FMJBTs only do 2 MOA. All iron sights, but I get 1 MOA at 200 yards with my M1A, and 2 MOA all day long with a .223 AK variant also iron sighted.
So, what are we getting? Consider this an informal survey. Reports from borrowed guns welcome!
In general, I've heard that chrome-lined barrels are supposed to usually be less accurate than unlined match-grade barrels.
But one of the big AR makers had lots of text on their web page about how their chrome lined barrels really do peform as well and match barrels, and should be preferred because they last so much longer.
So, what's the actual 5-round group MOA TFL shooters are getting from their AR-15 barrels? Please report the twist rate and bullets used, as my limited experiments with a Colt HBAR 1:7 show 2.5 moa with 55-gr FMJBTs, and 1.25 MOA with Sierra 69-gr HPBT match bullets. Hornady/IMI 63-gr FMJBTs only do 2 MOA. All iron sights, but I get 1 MOA at 200 yards with my M1A, and 2 MOA all day long with a .223 AK variant also iron sighted.
So, what are we getting? Consider this an informal survey. Reports from borrowed guns welcome!