Did the Trump and Kirk assassins "zero in" their weapons?
The Trump (would-be) assassin struck Trump's ear, and maybe missed only as Trump turned at last moment.
The Kirk assassin hit on his first shot.
Both shooters were rank amateurs, and shooting from much longer distances than LHO.
LHO was a good shot, certainly by civilian standards, and the M-C rifle was built to military specs to be accurate to 200 yards. That is, on a tripod, in fixed position, it would hit the same small target at 200 yards over and over again.
LHP ay have practiced at the Sportsdrome and down in MC. But how much practice did the Kirk assassin have?
The rapidity of shots fired on 11/22 raises some issues.
In modern terms, LHO was a "gun enthusiast." He was in the Marines, learned to shoot, owned private guns while in service, owned a gun in Russia, owned guns back when he came to the US.