Bolt Throw
How far the bolt handle must rotate to unlock the action, with shorter throws clearing the scope and cycling faster.
Bolt throw is the angle through which the handle of a bolt-action rifle rotates to disengage the locking lugs before the bolt can be drawn rearward. A conventional two-lug action typically uses a 90-degree throw, while multi-lug and purpose-built designs cut that down to around 60 degrees. The shorter the arc, the less the hand has to travel to break the action open.
A short 60-degree throw has two practical payoffs for precision shooters. It gives more clearance between the bolt knob and a low-mounted scope’s ocular bell, and it lets the shooter cycle faster while staying on the gun, which matters in timed stages and on follow-up shots. The trade is higher mechanical effort to unlock, since the same camming work happens over a smaller rotation.