OK, dumb question of the day

[Frod733]

I was attempting to drill the lock bolster for the back lock plate screw. Drill wandered, and now I have a hole through the top part of the lock bolster. 1/4 of the hole is exposed above the lockplate. I was going to try to tap it and screw in a bolt, peen it on both sides, but now that is not possible. How may I fill this hole and redrill and retap? I do not have welding capabilities. Was wondering if silver soldering a plug would work? Thinking about finding a local welder and see if they can weld it shut. Your thoughts? Please be gracious. I have beat myself up enough already.

 

[2 shots]

best bet.. get it welded. after taking lock apart.

 

[deerstalkert]

who is the manufacturer of the lock?. you may be able to get a fresh plate cheaper than paying a welder to attempt to fill the hole.
even if a good welder could fill it you are going to have to file it back smooth. lots of elbow work.
PS. someday i plan on making a board with all my oop's on it and hanging it above my bench.

 

[TDM]

Can you show a photo?

 

[rchas]

I would think silver soldering a plug would be plenty strong enough--I mean high temp solder like Brownells Silvaloy.

 

[user 34300]

Sure silver solder a plug. Silver solder it the preferred method. Hight temp silver solder is incredibly strong. It will probably come out cleaner looking than welding. When customers misdrilled locks on Kibler kits, Kibler silver soldered a plug. There is a utube video on it.

Plug the hole in the stock too.

When you do it over drill the plate a bit undersized first. Then use the hole in the plate, on a drill press table to make the through hole in the stock. Then bring both holes up to the tap size. Then open up the stock hole to a few thousands over major thread diameter. Then start the tap using the hole in the stock to guide the tap, dry or with a bit of wax. So not soak the stock with tapping fluid. Finish the tapping in a vice with plenty of tapping fluid. Finally run the tap through the stock into the plate to align the threads perfectly.

 

[billraby]

I would probably just get a new lock plate

 

[Comfortably_Numb]

You can soft solder a plug in. I've built muzzleloaders professionally for more than 40 years and that's the way I would fix it.

 

[Dale Allen Raby]

Get a new plate. Even if you can successfully repair it, the marks will still be there. Also, get a center drill and use it, then use a new drill bit to drill the final hole. "Then, measure twice, drill once."

Oh, and the only dumb questions are the ones you didn't ask.

 

[Frod733]

Sure silver solder a plug. Silver solder it the preferred method. Hight temp silver solder is incredibly strong. It will probably come out cleaner looking than welding. When customers misdrilled locks on Kibler kits, Kibler silver soldered a plug. There is a utube video on it.

Plug the hole in the stock too.

When you do it over drill the plate a bit undersized first. Then use the hole in the plate, on a drill press table to make the through hole in the stock. Then bring both holes up to the tap size. Then open up the stock hole to a few thousands over major thread diameter. Then start the tap using the hole in the stock to guide the tap, dry or with a bit of wax. So not soak the stock with tapping fluid. Finish the tapping in a vice with plenty of tapping fluid. Finally run the tap through the stock into the plate to align the threads perfectly.

Do you have a link for the kibler youtube video on kibler repairing misdrilled lock plate? Can use all the help i can get. Thanks.

 

[Comfortably_Numb]

Do you have a link for the kibler youtube video on kibler repairing misdrilled lock plate? Can use all the help i can get. Thanks.

Imagine what gunbuilding was like before Algore invented the internet.

 

[64Springer]

.

 

[64Springer]

Do you have a link for the kibler youtube video on kibler repairing misdrilled lock plate? Can use all the help i can get. Thanks.

Is this a cryptic post to say you mis-drilled a Kibler lock plate?

Put up some pics.

 

[Frod733]

Found the link. Good info.

 

[Boston Bill]

Imagine what gunbuilding was like before Algore invented the internet.

I remember being into this great hobby before the net. The net makes it so much more fun!

 

[oldwood]

Solder a plug in place , center punch , and re drill from the lock plate face side , toward the "side plate" direction , using the tapping size drill . There's more to this procedure , but it's not rocket science. Always make sure the stripped lock plate bolster , is parallel to the outside flat of the barrel. Use a square for this. Luck to ya............oldwood

 

[Valkyrie]

I misdrilled the lock on my current project. I threaded a screw in with red locktite and peened it over and filed flush. Invisible. But I see that you have a different issue.

Get a new lock plate. Simple.

 

[Comfortably_Numb]

I remember being into this great hobby before the net. The net makes it so much more fun!

I liked the world much more before the internet was invented.

 

[Frod733]

Final update. So, I decided to repair the lock. The issue was that a misdrilled rear lock screw broke through the top of the lock bolster. I could not tap it and plug it directly, as the screw hole was partially exposed at the top of the lock bolster. So, I silver soldered a brass block to the top of the lock bolster, covering the exposed misdrilled hole. Then I tapped the misdrilled hole. Silver soldered a screw into the hole, then took the brass block off and filed the screw flush in all areas. Redrilled the hole properly in its right location, tapped it and done. Clumsy perhaps, but it worked. Plug is nearly invisible. Thanks for all the comments.

 

[Larry (Omaha)]

Final update. So, I decided to repair the lock. The issue was that a misdrilled rear lock screw broke through the top of the lock bolster. I could not tap it and plug it directly, as the screw hole was partially exposed at the top of the lock bolster. So, I silver soldered a brass block to the top of the lock bolster, covering the exposed misdrilled hole. Then I tapped the misdrilled hole. Silver soldered a screw into the hole, then took the brass block off and filed the screw flush in all areas. Redrilled the hole properly in its right location, tapped it and done. Clumsy perhaps, but it worked. Plug is nearly invisible. Thanks for all the comments.

Good job! Remember is isn't a mistake if ya can fix it
Larry