Thanks for the good info RR. I was not aware of the Colt problems of "interchangability."

I really had a hard time deciding about chrome -vs- non-chromed barrels. I ended up going with the chrome. I haven't regretted it. I'm getting sub MOA now with very cheap factory ammo, so that pleases me greatly.

Question, I see AA2230 powder mentioned as a good powder for .223 REM, reloads. Is this powder made by ACCURATE INC?

MH