I have shot hammerguns for many years. Too me they are the best balanced and handling guns of the side x sides. For a walk up gun I lean towards an underlever with non rebounding hammers. I hunt a lot with pointers so i usually have some time to get ready for a shot. You might look at Vintage Doubles site, Kirby Hoyt usually has some and the measurements for the barrels, stocks, etc are in the listing. I have loaded my own for steel shot for a number of years and shoot it in a Husky 12 under lever. One other thing is that they almost always work.
Hope you find a good one. Dwight
