the doctor wrote:some break opens can be bored out to hanlde the longer shells safely
until that is done by a professional gunsmith I would say it not very safe
the doc
This is correct doc. I have a rem 1100 2 3/4 in that has been boared by a gunsmith to shoot 3in with the barrel cut off to 28in. It clearly says 2 3/4 in on the barrel and the gunsmith told me that in the long run it is not good for the gun. I have hunted with it now for 10+ years with no problems. It has killed many a duck.