I haven't seen a chattered receiver in a 7400. The changes to the bolt, bolt carrier, action bars and receiver all help to limit the over-rotation of the breech bolt at the rear of its travel. I expect that it might happen that there would be some light marks such as appear in the 742's but I haven't even seen that.
I had the entire technical explanation fed to me by one of the Remington factory 'smiths but it was so long ago I can't call it all up any more.
As for the reliability of the 7400, I sold one brand new that had a Model 4 barrel on it as well as a number of other bottom of the bin parts. It was a royal pain but it is finally running true and has seen about five successful seasons without issue.
Other than normal parts breakage, such as firing pins and extractors, the vast majority of problems with these rifles are due to ill fitting or damaged magazines and/or lack of cleaning and maintenance.
I have no problem recommending these rifles to anyone who wants a relatively affordable semi-automatic and is willing to take care of it.
I won't dispute what others might have encountered but my experience has been one PITA rifle out of about 350 serviced. That's not too bad for any model.
I had the entire technical explanation fed to me by one of the Remington factory 'smiths but it was so long ago I can't call it all up any more.
As for the reliability of the 7400, I sold one brand new that had a Model 4 barrel on it as well as a number of other bottom of the bin parts. It was a royal pain but it is finally running true and has seen about five successful seasons without issue.
Other than normal parts breakage, such as firing pins and extractors, the vast majority of problems with these rifles are due to ill fitting or damaged magazines and/or lack of cleaning and maintenance.
I have no problem recommending these rifles to anyone who wants a relatively affordable semi-automatic and is willing to take care of it.
I won't dispute what others might have encountered but my experience has been one PITA rifle out of about 350 serviced. That's not too bad for any model.