Lyman GPR sights loose

[LONGHORN]

The adjustable sight for my GPR is loose (not the dove tail) it moves from side to side slightly pivoting on the hinge pin, than dose not return to center (stays off to one side or the other till you push it back).

I tried to stretch the spring slightly (did not work).

Any thing that I can do?

How big of a problem is this?

How badly would you say this will effect accuracy at say 100 yards?

Also the primitive sight that came with the rifle slides through the dovetail and falls out.

Anything I can do about that?

I would appreciate any thoughts.

Thank you

 

[410-er]

I didn't like mine being loose either.I did like the design of the adj. sight.I put a drop of Lock-tite on the elevation treaeds,tightened the whole way down,and filed the front sight.
If rear fixed sight is loose in dovetail either a little JB Weld in groove or peen an edge on dovetail.

 

[cowpoke1955]

I've heard of that with some of the adgustable sights. I never had that problem. I kept the adjustable sight on my .54 GPR percussion, but installed the primitive fixed sight on my .54 GPR flinter. All the GPR's fixed sights that I have seen or heard of are all cut too small. I stuck mine in a vise upside down and peened it along the edges that slides into the dove tail. May have to try it a couple of times to get a nice snug fit. Do not peen the barrel! You could mar up or damage your barrel. I like the fixed sight better that the adjustable. It looks better, it's more secure and it gives me a better sight picture. They don't call the GPR's Great for nothing. Have fun :thumbsup:

 

[jethro224]

I put the fixed sight on my capper. And I like the fixed sight much better too, but I peened the barrel dovetail. I just placed the ball end of one hammer in the dovetail and lightly tapped it with another hammer. It doesn't take much! The sight covers any marks at the edge of the dovetail and I never intend to take it off. :thumbsup:
If I woulda thought of it, I woulda peened the sight instead.

 

[cowpoke1955]

My .54 GPR percussion I've had for almost 30 years. A few years back, my wife bought me a .54 GPR flint kit. As I was putting things together, I noticed the fixed sight would slide right through thr dove tail cut in the barrel. I called Lyman and they sent me two more fixed sights. Now I had three identical fixed rear sights. I figured it was easier to work on the sight and cheaper, in case I screw up. Call me a coward :rotf: . The fixed rear sight seems to have a wider notch that goes well with the thick factory front sight. I like the looks of the fixed sight and you never have to worry about it moving on you. Since I browned the kit, I finally switched the factory front sight with a silver blade front sight. It just gives it a nice look.

 

[ohio ramrod]

The two simplist ways to tighten the dove tail are 1, cut a shim to fit under the sight this will raise it up against the dove tail. 2, drill and tap the sight for a set screw which will push the sight up against the dovetail. This will allow for easy adjustments untill you get it sighted in , then some J B weld can be worked into the crack if so desired.I prefer the set screw method as it allows for easier adjustment .Some people will "peen" the dovetail down but that can leave a rough looking fit unless done carefully.

 

[montanatim]

The other fix not mentioned yet that is simple and invisible, is to center punch the bottom of the dovetail slot. Once, twice, whatever it takes to displace just a bit of surface metal so the sight can still be drifted at will and still be tight.

 

[traceywalker]

That's what I did and it works fine.
Rangertrace

 

[David Brockett]

I know this is an old thread but I wanted to tell you I used your technique of peening the bottom of the sight and it worked really well. Thanks for the good advice!