Please tell how by removing the stock you can tell if the gun double discharged?

I doubt that you will ever find the reason for the burst and you could theorise all day .Personally I would plum for blockage . But as has been said before you hardly ever notice a bulge when shooting so damage could have occurred prior to the burst .It is odd that I have seen several Bertta's with bulges/burst barrels and it has always been the bottom .

Last edited by gunman; 06/03/16 11:21 AM.