interesting little problem

wayupnorth

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so a while back i made my 'Lite 10/22' gun and i really like it.
i must admit i dont get it out as much as i would like..... there are just so many nice guns to choose from in my stable!

but i found a interesting problem today.
i was routing around in my gun safe to get out a rifle i had ordered some new sights for and had to move this Green Lite 10/22 of mine and when i went to move it the front NDK site moved.... and not a little, like 1/4 turn around the barrel moved!

so i pulled the rifle out and had a look and the front site, i was able to just grab it and it came right off the gun.

out to the shop i went with it and i sat back and tried to figure out why this happened.
near as i can figure the all aluminum barrel i have on that gun contracted a little since the gun is cold?
thus making the sight loose?

i had a look at the sight itself, the 2 set screws are just pressure holding onto the barrel so i decided i did not want this problem to happen again.
i took a spring loaded center punch and marked where the 2 small screws press fit at and then i drilled a small 1mm-2mm divot into the top of the barrel there.
put the sight back on, loctite onto the screws, cranked them in, snug as a bug now.

anyone else running the NDK front sight ever have a issue like this??

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All aluminum barrel? Never heard of one. Are you sure? The rifling would wear out in no time. You'd have a .22 shotgun barrel. Aluminum is too soft to hold an edge for rifling.
 
Ruger strikes again lol, sorry I'm not a fan of Ruger, but you owners gotta check them now and then.
And yes Ruger rifles that are light weight use a aluminum shroud with a steel core, like mentioned a aluminum engine block/ cylinder heads, they have a steel sleeve for the cylinders
 
Ruger strikes again lol, sorry I'm not a fan of Ruger, but you owners gotta check them now and then.
And yes Ruger rifles that are light weight use a aluminum shroud with a steel core, like mentioned a aluminum engine block/ cylinder heads, they have a steel sleeve for the cylinders

its a TacSol barrel, so not a Ruger and the front site is a No Dak Spud, so again not Ruger.
being a fan or Ruger or not has nothing to do with the situation above.
 
All aluminum barrel? Never heard of one. Are you sure? The rifling would wear out in no time. You'd have a .22 shotgun barrel. Aluminum is too soft to hold an edge for rifling.

its a TacSol barrel.

chromoly steel liner with a outer 6061-T6 aluminum, weighs in at 15oz, pretty light for a bull barrel.
 
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