I like sixteens and light twelves but I won't even look at one that has had it's chambers deepened. The reason, I have no way of knowing how many standard SAMI loads it has fired.
Let me say this about that.
Even if the chambers ARE original length, you still have no way of knowing how many standard SAAMI loads it has fired. Lots of guys were too cheap to have the chambers lengthened and too cheap to buy the right length shells. I've met quite a few old guys that have guns still with the original 2-1/2" chambers and they've been feeding them 2-3/4" and even 3" loads for years.
The only thing original chambers will tell is that they haven't been lengthened. By themselves they will tell you nothing of the guns condition. And vice versa, just because a gun has chambers that have been lengthened doesn't mean it's in bad condition.
