Tightening a barrel

[Neil Young]

I've had good experience with Neverseize, but it does have one annoying side effect. One very small dab of the stuff will cover half of the free world. Have you ever had the experience where you apply a small amount and notice shortly thereafter that your face is coated with the stuff, as well as your hands and clothes? Nothing like that healthy silver glow.......... Of course, you could use Felpro if you want a golden hue.

[Olle]

Originally Posted by Neil Young

Have you ever had the experience where you apply a small amount and notice shortly thereafter that your face is coated with the stuff, as well as your hands and clothes?

Been there, done that. I still remember first time I used Copaslip on the exhaust manifold bolts in my Camaro, I didn't know how much (or actually how little) I should use and ended up with a mess beyond belief in my neatly detailed engine bay. Same thing when you use graphite grease, you wipe the sweat off your face a couple of times and you end up looking like Gene Simmons. They say that a little goes a long way, and it obviously means that it migrates a long way from the place you used it.

[rhuff]

Originally Posted by Neil Young

I've had good experience with Neverseize, but it does have one annoying side effect. One very small dab of the stuff will cover half of the free world. Have you ever had the experience where you apply a small amount and notice shortly thereafter that your face is coated with the stuff, as well as your hands and clothes? Nothing like that healthy silver glow.......... Of course, you could use Felpro if you want a golden hue.

I thought that I was the only one that could manage to get that stuff nearly everywhere when starting out with such a small amount........maybe it multiples once it leaves the tube!!

[Neil Young]

"I thought that I was the only one that could manage to get that stuff nearly everywhere when starting out with such a small amount........maybe it multiples once it leaves the tube!!"

I think you are on to something there rhuff.

[G.T.]

The old adage is: When you open a can of worms, you always need twice as big of can to get them all back in!" So it is with the barrel tightening task... But, I have since discovered, it is friction, holding, and torque, turning... and not much else enters in... the undercut on the barrel flange, is most likely there to flatten out the torque needed to index the barrel properly... Meaning, if you can hold the barrel, without scratching it, and turn the receiver without distorting it... you have a range the it will tighten in to the proper indexing position... We know where it starts, approximately??... where this range ends, is, as of yet, not known to me, as I can't afford to go to the yield point on my dollar....i.e. receivers aren't growing on trees! ... all the previous info on this thread is important, and definitely points the way to successful installations... we get better as we go... best to all, til....lat'r....GT

[DavidJayUden]

I'm sure the first couple dozen are a real learning experience, G. T...

dju

[lugercollector]

I replace barrels on Lugers on a regular basis....In Canada a 110 mm Barrel on a Luger makes it legal to own for most people whereas a 100 mm(4") Luger is considered a prohibited Firearm.....I work in conjunction with a machine shop and we make the barrels from scratch from rifled 9mm blanks....The best way we have found for proper indexing is to use an old receiver(as a guide),machine the threads and tighten up the barrel to the receiver....make a witness mark at he bottom of the barrel....remove the barrel and then machine the front sight 180 Degrees from the witness mark....the barrel will then install with the correct tension and vertical alignment.......Attached are some photos....

[G.T.]

Very nicely done! One question, how tight do you tighten the blanks in before you index?? Do you have a definite final torque spec.?? Maybe two questions.. how much does it set you back to make the barrel?? Looks like top quality work, very impressive... best to you, til...lat'r....GT