Measure throw on lock with missing flintcock?

[Ryden]

I've bought a lot of old flintlocks and parts and I got a Brown Bess lock that I'd like to restore.

There are a couple of flintcocks with different throws to choose from when ordering so how do I know which one to get?

The throw ought to be related to the distance between the center of the nut and the center of the pan or something.

 

[rcmodel]

From "Americanlongrifles.com", section entitled "The quality Flintlock by Jim Chambers" :

Cock throw (the distance from the center of the square tumbler hole to the lower jaw) – this distance should be equal to or slightly longer than the distance from the center of the tumbler hole to the face edge of the closed frizzen.

rc

 

[Ryden]

Thanks RC!