My Agency issue for many years was a SW 640 as a backup. I still carry it and the 642 often, even though the Glock 27 is the new backup issue. I am an accomplished shot on most any weapon system and qualify expert without much effort. The furthest shot on the qual course for the 640 is 25 yards.
Taking my sweet time to work good sight alignment and a smooth DAO trigger pull, I can hit pretty well out to 50 yards in the kill zone for target plinking. However, when you are talking combat shooting or stress shooting, putting rounds anyplace on a lifesize target even at 25 yards is an accomplishment.
In a combat/self defense situation you are not just standing and shooting. You are using cover and know that each time you expose yourself for a shot the risk of being hit escalates. The stress is further escalated when you know you are looking at a reload after 5 shots and begin thinking about where you will be when that occurs (assuming you have a speed loader or strip). Your shots are quick and intended to limit your exposure as a target.
Having trained regularly as a professional under combat conditions with the 640 as a backup, I know my personal comfort zone is inside of 25 yards for a fire fight. Certainly I would not choose the 640 as my first choice if I knew I was going into a gunfight, but sometimes you have to work with what you got at the time. Its a great and effective gun for a fast defensive response at short range.
I would encourage anyone contemplating carrying one to learn how to reload quickly and to have a speed strip or speed loader with them. I love a speed loader, but sometimes it is a bit bulky in a pocket. The speed strips lie flat in a pocket. Training with a dedicated pocket to the ammo for the reload is also an important TTP. Would suck to try to load a handful of change or a set of keys while groping for your bullets.
Taking my sweet time to work good sight alignment and a smooth DAO trigger pull, I can hit pretty well out to 50 yards in the kill zone for target plinking. However, when you are talking combat shooting or stress shooting, putting rounds anyplace on a lifesize target even at 25 yards is an accomplishment.
In a combat/self defense situation you are not just standing and shooting. You are using cover and know that each time you expose yourself for a shot the risk of being hit escalates. The stress is further escalated when you know you are looking at a reload after 5 shots and begin thinking about where you will be when that occurs (assuming you have a speed loader or strip). Your shots are quick and intended to limit your exposure as a target.
Having trained regularly as a professional under combat conditions with the 640 as a backup, I know my personal comfort zone is inside of 25 yards for a fire fight. Certainly I would not choose the 640 as my first choice if I knew I was going into a gunfight, but sometimes you have to work with what you got at the time. Its a great and effective gun for a fast defensive response at short range.
I would encourage anyone contemplating carrying one to learn how to reload quickly and to have a speed strip or speed loader with them. I love a speed loader, but sometimes it is a bit bulky in a pocket. The speed strips lie flat in a pocket. Training with a dedicated pocket to the ammo for the reload is also an important TTP. Would suck to try to load a handful of change or a set of keys while groping for your bullets.