All of my military handgun training in 1966-1969 USAF was done with .38 revolvers.
I had one on but was never trained with it. My only AF gun training was when at a base in SF just before going to Vietnam I was given an M16 and a box of bullets and told to shoot at the target until I hit it a certain total of tries. I flew in C47 and I guess they figured if my plane ever got shot down there would be no need for weapons anyway. If those things got hit and you were not dead from the hit the plane, or the part of it you were alive on, would return to base and land.
I had one on but was never trained with it. My only AF gun training was when at a base in SF (Hamilton?) just before going to Vietnam I was given an M16 and a box of bullets and told to shoot at the target until I hit it a certain total of tries. I flew in C47 and I guess they figured if my plane ever got shot down there would be no need for weapons anyway. If those things got hit and you were not dead from the hit the plane, or the part of it you were alive on, would return to base and land.