357. Revolvers with flat mainsprings have to have a steel framework to anchor just one end, though the other contacts the hammer. This framework generally varieties the principal shape in the handgrip, to which the stocks are connected. The Dan Wesson design homes the coil mainspring within a short extension https://simonfczup.bloggazzo.com/38307025/the-2-minute-rule-for-dan-wesson-arms-photo-gallery