Single set trigger

[Newguy]

Hello all have a friend that got a 50 Lancaster with a chambers large siler lock single set trigger. Issue is lack of consistent fire. You can hear hammer click but doesn’t fire the cock. But if you reset trigger it will fire on second pull. It did work 4-5 times correctly after issue was found,but then returned back to original problem. I do not know the maker but it is a very nice rifle. And I’m a double trigger man myself so I have zero knowledge on the subject. Thanks everyone for any information.

 

[godutch]

If you could get us a pic of that trigger someone here will know what it is. I think that'd be the first step in getting some insight on the problem.

 

[Newguy]

If you could get us a pic of that trigger someone here will know what it is. I think that'd be the first step in getting some insight on the problem.

Yes sir great suggestion thank you. I’m assuming both in and out of the gun would be best?

 

[Phil Coffins]

Yes, and tuning and or clean and oil the lock maybe all it needs.

 

[Harry Marinakis]

Remove the trigger assembly and clean thoroughly. Check the spring.

 

[BoomStick]

A single set trigger may work best if set before taking to half-cock. They generally only fire when set (unlike the 2 trigger set where it fires set or unset) so the trigger unset may be putting slight pressure on the arm of the sear.

 

[Newguy]

A single set trigger may work best if set before taking to half-cock. They generally only fire when set (unlike the 2 trigger set where it fires set or unset) so the trigger unset may be putting slight pressure on the arm of the sear.

So I thought the same thing when it first happened, that there had to be a little “trick” to it. But we tried before after and at half-cock. It really blew me away.

 

[Newguy]

Remove the trigger assembly and clean thoroughly. Check the spring.

That was really my question could the hammer be weak or dirty. Thank you

 

[Newguy]

A single set trigger may work best if set before taking to half-cock. They generally only fire when set (unlike the 2 trigger set where it fires set or unset) so the trigger unset may be putting slight pressure on the arm of the sear.

Thank you sir

 

[Newguy]

Yes, and tuning and or clean and oil the lock maybe all it needs.

Yes sir we are going to try that. Thank you

 

[Norman Brooks]

You may have a wood clearance problem. If the cock does not go back far enough to let the fly slide in front of the sear you will get a half cock hang up, which will break something.

 

[Grenadier1758]

I was thinking along the lines of @Norman Brooks. I was thinking the sear arm in the lock is too long and dragging on the wood in the lock mortise. The other likelihood is that the heavy spring driving the set trigger lever is needs to be a turn tighter. I can only speculate since I can't see the triggers or the internal view of the lock mortise.

 

[Newguy]

I was thinking along the lines of @Norman Brooks. I was thinking the sear arm in the lock is too long and dragging on the wood in the lock mortise. The other likelihood is that the heavy spring driving the set trigger lever is needs to be a turn tighter. I can only speculate since I can't see the triggers or the internal view of the lock mortise.