oughta make a dandy carry piece, I carry a 4" S&W mod 29 .44mag or a .45 ACP 1911A1 C Series Colt for serious social work, but wouldn't feel the least bit underdressed if I was carrying that S&W 657. Brother carried a 4" mod 57 for 20 years on duty, he never had a complaint on it, recoil was very manageable even with heavy duty loads with some good Roper grips on it..that 3" oughta be just dandy. Might check Gunbroker or one of the other gun auction sites to see what they're bringing, you might hafta up your offer.
be safe, enjoy life, journey well
OFC, Mo. Chapter