Hello, I purchased my A5 back in 1962 and now have discovered dove hunting here in northern New Mexico. WE have to use steel shot, and I have been told this will ruin the barrel of my lightweight model made in Belgium. With a bag limit of 15 birds per day I want to obtain a vet ribbed model in 12 gauge with improved cylinder choking, suitable for steel shot. I want to get really the right barrel the first time and how do I go about identifying my shotgun so I get the correct replacement? Prices for these barrels seem to be all over the place. What in your opinion is the best replacement barrels for the money for my A5 which I have now had for 57 years? Gene S.