of course; that's why the air-force is developing laser; because projectiles will move too slowly on a Mach 3 figher planes to be accurate enough. and it's highly accurate AND at speed of light; almost instantaneous.
and railgun in Q3 gets even better after patching it to the latest version. it gets that spirally thing. even cooler. do note that real railguns don't make trails. it's just there in games to make it look cool and different from conventional guns. well, only trails it makes is this big spark because of its very high voltage. but that's not spirally