user293 wrote:lookin good for this barrel. i have to say, ive found alot more good then bad, as far as reviews for the barrel. element arms has one on gunbroker for 10 bucks cheaper than midway, i may call tomorrow and see if they have any more. the reason why i wanted a Wylde chamber is to be able to shoot a more variety of ammo (223 and 556) just in case the ammo starts to become hard to find. but i see black hills has some good looking match ammo in 556 (m855? or M-somethin) and there seems to be some good, cheaper 556 ammo available, so i could deal with runnin 556 ammo only, since the barrel gives so much bang for the buck.
You can shoot .223 in a 5.56 chambering just fine. Any accuracy/reliability difference is far outweighed by running the proper load.
However, shooting 5.56 in a .223 is not advised.