not holding half cock

[Flintandsteel]

In the photo, the sear is in the full cock notch. The ½ cock notch is ahead of that on the tumbler, and it is almost non existent.
I suppose a new tumbler would fix it, but seems like some other problems in the mix.

 

[waksupi]

Here’s a pic where the trigger is hitting on the seat arm.

thanks. I have a little play at both ends

You totally missed my meaning. It's time for you to stop and have someone who knows what they are doing fix it. Some of the things you mention doing so far is making it worse.

 

[FlinterNick]

In the photo, the sear is in the full cock notch. The ½ cock notch is ahead of that on the tumbler, and it is almost non existent.
I suppose a new tumbler would fix it, but seems like some other problems in the mix.

Lots of stuff wrong with this lock.

 

[FlinterNick]

All,
I have a TRS Tower Long land lock that is functioning fine in my hand..ie..holds half cock n...unable to get it to go off in HC. Nice transition to full cock. Buttery smooth. When I place it into the stock I will not hold half cock. Goes off just as if on full cock when I pull the trigger. What is going on? How can I correct this. Pictures are at half cock. I can send more pics if needed. This is frustrating as I tested in the stock earlier and it worked fine. At the end game now...can't believe this came up.

Did TRS assemble this lock?

Is this a 1728 or a 1742 era lock? Or a different one all together?

Every time i look at this lock i see something wrong.

The tumbler doesn’t look like a typical long land tumbler, to me it looks like a much earlier Tumbler.

The cocks position in the picture looks like its at halfcock.

The small notch i had circled on the tumbler is not technically a half cock notch, on early tumblers, its not technically a notch per say but more like a break, you see it on Dog lock tumblers, early Dutch guns, and early french tumblers…. Thats what that looks like to me.

Can you show a picture of the lock without the bridle?

The bigger issue with your lock is where the lock bolt is drilled, it’s way too far high up, it will not seat in the stock correctly.

 

[Rob M.]

Like " they " said ....your either hitting
wood somewhere or there isn't enough slop between the sear arm and trigger . Inlet black the sear arm and the sear , esp bottom part near mortice wood . The slop thing ....if it isn't hitting wood ,a lot of times ,unfortunately ,you have to file material off your trigger ,I had to do this on NW gun I'm finishing now ....and I hate it .... I hate slop in the trigger but many times the sear needs to travel a bit more for it to go where its supposed to be for it to work correctly ....best of luck

 

[waksupi]

Like " they " said ....your either hitting
wood somewhere or there isn't enough slop between the sear arm and trigger . Inlet black the sear arm and the sear , esp bottom part near mortice wood . The slop thing ....if it isn't hitting wood ,a lot of times ,unfortunately ,you have to file material off your trigger ,I had to do this on NW gun I'm finishing now ....and I hate it .... I hate slop in the trigger but many times the sear needs to travel a bit more for it to go where its supposed to be for it to work correctly ....best of luck

More important with slop, a tightly fit trigger will many times not work in wet weather. Things swell enough a gun won't hold half and sometimes full cock.