new barrel problem ??

[Brushbuster1]

Trying to put a new Shilen barrel on a Savage 10 the problem is it won't screw in the action so measured the threads on the factory barrel they measured 1.05 and the new barrel measured 1.054. I got the barrel nut to thead on but not the action. Is the difference in the threads enough to cause this and if so why can I get the nut on but not the action. This is the first time I've tried to work on this type of thing myself so any suggestions or help please and thank you.

 

[boltman223]

What she's the barrel measure that came off of it?

 

[eric32]

On my CBI barrel i just took a little sandpaper and rubbed it down a little bit to knock down the sharp edges on the barrel

 

[Brushbuster1]

The barrel that came off it measured 1.05. And I tried a little sand paper just not enough I guess. The sand paper or file make me nervous that I will will really mess the threads up but I will give it another go. Are the threads different between the barrel nut and the action or just less tolerence in the action.

 

[BigDMT]

You have to turn it to the RIGHT... ;D

 

[boltman223]

Wait till Erickortina sees this one. I wonder what his remark will be?

 

[Erik Cortina]

Wait till Erik Cortina sees this one. I wonder what his remark will be?

The only way to really know if the barrels are the same is with a thread mic or measure with a mic over wires. Try the sand paper and if that doesn't work you will have to pay a gunsmith with a lathe to "chase" the threads. Maybe you can send the barrel back if it doesn't work. And yes, .004" is enough to not thread on.

A better way is to use lapping compound on the nut and work it in and out and you might get it to go onto the action. Make sure you use anti-seize when screwing barrel on the action or galling can occur.

Another way I can think of is with a thread die to chase the threads.

Good luck!

 

[Erik Cortina]

I suggest to call Shilen..... and discuss the issue with them before you attempt any suggestions.

If your going off suggestions, put it in a lathe and fix the problem the right way - IMO

I agree, a lathe is the right way, however, I doubt he has a lathe.

Call Shilen first and ask about barrel, then call Savage and ask about differences in barrel and nut, and then post results here.

 

[BigDMT]

I suggest to call Shilen..... and discuss the issue with them before you attempt any suggestions.

+1

 

[Eddie Harren]

I have had to "chase" the threads on several "pre-fit" barrels from Shilen. As the amount of Savage work increases, in my shop, I'm seriously considering a tap purchase.

 

[Brushbuster1]

I think I'll call Shilen And see what they have to say. Thank you guy's for the advice

 

[L.Sherm]

What is the point of a pre-fit if you have to go to the trouble of sand paper, chase threads etc. ???

 

[LHSmith]

I have had to "chase" the threads on several "pre-fit" barrels from Shilen. As the amount of Savage work increases, in my shop, I'm seriously considering a tap purchase.

I thought the jam nut rage was gonna put yuse guys outta business? What's up with that?
Seems that Murphy is making regular visits on the pre-fit circuit. Ain't tolerances a bit-ch?

 

[L.Sherm]

Ive heard guys on here say single point cutting threads on actions are the only way to make actions true so if that's the case and you chase the threads on a barrel and don't single point them then aren't your threads on the barrel out of true if you chase them

 

[Erik Cortina]

Ive heard guys on here say single point cutting threads on actions are the only way to make actions true so if that's the case and you chase the threads on a barrel and don't single point them then aren't your threads on the barrel out of true if you chase them

The threads are already cut, he will simply cut them deeper with a die. The threads will end up as square as they were cut originally, if they were square, they will stay square after running a die on them.

 

[L.Sherm]

Eric, I'm not a gunsmith so are you saying using a tap to chase the threads on a action is ok instead of single point cutting them, just trying to grasp ahold of this.

 

[Erik Cortina]

Erik, I'm not a gunsmith so are you saying using a tap to chase the threads on a action is ok instead of single point cutting them, just trying to grasp ahold of this.

I'm not saying running a tap is ok. The tap does not correct misalignment. The only correct way to true an action is to single point cut the threads.

The difference here is that we are suggesting running a die over the barrel threads. It will simply cut them down in order for the barrel to fit the action.

 

[L.Sherm]

I guess my question really is that if you go to all the trouble of making sure your action is trued by single point cutting the threads then how do you really know that the threads on your pre-fit are cut correctly especially if you don't know the persons work who did it especially if they are already oversized, seems to me quality is alredy lacking. I don't know just my 2 cents worth, guess I would prefer the smith to do the action and cut the threads on a barrel.

 

[Erik Cortina]

I guess my question really is that if you go to all the trouble of making sure your action is trued by single point cutting the threads then how do you really know that the threads on your pre-fit are cut correctly especially if you don't know the persons work who did it especially if they are already oversized, seems to me quality is alredy lacking. I don't know just my 2 cents worth, guess I would prefer the smith to do the action and cut the threads on a barrel.

That would be the correct way, and I agree with you. But that level of precision is above the purpose of a Savage. If you were to do what you suggest, it would be cheaper to start off with a custom action that you can put a good trigger on.

 

[Gundoktr]

I guess my question really is that if you go to all the trouble of making sure your action is trued by single point cutting the threads then how do you really know that the threads on your pre-fit are cut correctly especially if you don't know the persons work who did it especially if they are already oversized, seems to me quality is alredy lacking. I don't know just my 2 cents worth, guess I would prefer the smith to do the action and cut the threads on a barrel.

That would be the correct way, and I agree with you. But that level of precision is above the purpose of a Savage. If you were to do what you suggest, it would be cheaper to start off with a custom action that you can put a good trigger on.

And on top of that if you single point the threadsin the receiver, they will get bigger! You can't use a pre-threaded barrel, it will be to sloppy a fit. For a correct job, you need to single point the threads on the barrel and receiver to fit each other.