Before ya'll start pulling your hair out YES I know that you should not shoot 5.56 out of a standard 223 barrel. Okay so here goes, I have a savage model 112, it has the 26 inch bull barrel on it. This thing is huge, over half inch of steel around the chamber... why could or couldn't I shoot 5.56 out of it? I had a 300 win mag with pretty thin chamber walls, so why couldn't I shoot 5.56 out of my 223. Please don't tell me there diffrent sizes and start in about wall thickness and so on, I had a model 12 FVSS when they first came out and before I new any better used to put 5.56 threw it all the time and never had a problem, but now that I"m older and started reloading I under stand alot more about pressures so I don't want to have a bomb in my hands. Any input would be great on this, there's a nice sale on 5.56 at a local store, that's why I'm asking Wanna kill these ads? We can help!