The Garand monicker reminds me of a discussion re: the scene in Saving Private Ryan when the trooper calls P-51s 'tank busters' that I've had with other collectors.
The term makes them rankle, even when I cite squadrons of the 8th AF that flew P-51s in exactly that role, on D-Day. To some, the term was correct. To others it was not. In the war and after. Just like the term "Garand'- some GIs used it, some didn't. Personally since I didn't know John Garand, and the name of the rifle is the M1 rifle, I usually call it a ham and swiss on rye since it's instantly recognizable anyway