Lock Jar?

[Darkhorse]

Has anyone ever had a lock that would jar or move the bore off target before the rifle fired? Any mention of this has always been associated with using set triggers. If so, what was the fix?

[Bob Roller]

Has anyone ever had a lock that would jar or move the bore off target before the rifle fired? Any mention of this has always been associated with using set triggers. If so, what was the fix?

A lock that is too big for the gun plus a heavy frizzen can create this condition.
Lynton McKenzie had a Fenton target rifle,a 16 bore with double set triggers
and tiny lock like found on a pocket pistol,fast as lightning and no jolt to the
gun.Set triggers are not the problem and the lock is the only thing that has
moving parts that can jolt your gun.
The Simon Kenton rifle is a small one with a big military lock and the late Tom
Dawson copied it and said that big lock was a problem and reminded him of
the start up torque of a half inch electric drill.

Bob Roller

[Flint62Smoothie]

Though lighter in felt pull weight, set triggers do increase the lock time, which puts more emphasis on the hold and follow through. But I would imagine that any jarring from the trip spring is insignificant as compared to that example of a huge lock cycling on a small rifle.

[Mauser06]

I've heard of the issue with pistols.