Hello oldguy. I am somewhat embarrassed to admit I have never fired a .40 but from all accounts that is the term all use for it....snappy. I have shot plenty of .45 and 10MM with the .45 being no problem and the 10MM being a beast. But carrying a 10MM during hiking or fishing adventures is becoming common practice. It is a formidable slug and especially if using a hot load from Buffalo Bore there aren't to many animals in North America that can stand up to a Glock mag full of 10MM.