I have a 629-3 six in. and have killed several deer with it. I had two 629-2 revolvers back in the early 90s and they both would skip chambers or fail to rotate to the next round. S&W replaced both of these with my 629-3 that just came out with the new endurance package. Check for information on (endurance pkg.) and proceed from there. My 629-2 both had problems with factory rem 240 gr. and that was when they were brand new. I would try to get nothing before 629-3