Lock and load is backwards. One opens the breech on a cannon, loads it, then locks the breech. I don’t know how that got turned around in common parlance. Many semi autos come with adequate safeties to carry with a round in the chamber. But I wouldn’t want to stuff a Glock in my pants that way. Better to have in a good holster.
“Lock and load is backwards. One opens the breech on a cannon, loads it, then locks the breech. I don’t know how that got turned around in common parlance.”
It refers to locking the slide back and loading (inserting) the clip.
Lock (A Magazine into the mag well), Load ( by depressing the bolt catch/release on both the M14/M1A and M16/M4 families of weapons....
Same with a pistol, excepting the slide release for the bolt catch/release.
Artillery may still be appropriately loaded and then locked.....