Bolt Gun
Slang for a bolt-action rifle, manually cycled one round at a time. Used to distinguish it from semi-autos, the "gas guns", in precision circles.
The vast majority of precision rifle competition rifles are bolt guns. Lock time is short, the action is rigid, there’s no gas system to introduce variables. A precision bolt gun typically delivers smaller groups than a semi-auto of the same cartridge with the same ammo.
The trade is rate of fire. Where a precision string is one shot at a time with deliberate setup between, bolt guns are perfectly adequate. Where the stage requires fast follow-ups, gas guns close the gap.