The preferred cutting oil

[line runner]

I,m going to chamber a 204 Ruger for myself in the next month or so.
What would be the preffered cutting oil in order to obtain good results?

 

[Rembo]

I've used nothing but Rapid Tap......but there are probably a hundred others to try.

 

[rlg]

This is what we use here at the shop

Sultex Cutting Oil made by Texaco is a active sulfur based cutting oil.

Sultex oils are designed for tough machining operation such as:

Threading
Tapping
Broaching
Alloys that are difficult to machine

Good luck on your new venture

Robert

 

[Camk]

I use sulflo it sticks to the reamer very well

 

[guntech]

A sulfur based cutting oil works fine... I happen to use Rigid. I would be more concerned with setting up accurately so the chamber is true with the bore.

 

[Leeper]

I also use Rigid and always have. I have used both the dark and the Nu-clear. I like the dark better because the Nu-Clear makes my nose itch! Regards, Bill

 

[line runner]

Thanks for the information fellas.
It sound like a sulfur based cutting oil would be the way to go.

 

[Maple Leaf Pilgrim]

Thanks for the information fellas.
It sound like a sulfur based cutting oil would be the way to go.

Well, depends upon the steel and what you're doing to it.

 

[guntech]

Thanks for the information fellas.
It sound like a sulfur based cutting oil would be the way to go.

As far as rifle barrel and reamers are concerned - it works well.

 

[line runner]

Well, depends upon the steel and what you're doing to it.

I'm using a stainless steel... McLennan barrel

 

[line runner]

A sulfur based cutting oil works fine... I happen to use Rigid. I would be more concerned with setting up accurately so the chamber is true with the bore.

Thanks for the info GUNTECH... what I,ve done so far
-made an action truing jig
-cleaned the threads (will have to increase tennon size by.010")
-cleaned the action lugs
-faced the action
-faced the bolt lugs, face and nose
-bushed the rear of the bolt for .001 clearance in the action

I plan on doing the chambering in the headstock (4 jaw chuck) with the reamer supported in the live center.
I realize the some use floating reamers... I don't see the sense in doing all the truing and then let the reamer float wherever it wants to go.

 

[guntech]

If you dial in the throat area to the best 10 thousands and work off that... bore your chamber body under size, the reamer will follow that with a reamer "pusher".

 

[line runner]

Guntech,
Thanks for the picture of the setup... I have 2 interapid indicators , how do you reach in the bore up to the throat? Mine will only reach approx. 1"

 

[guntech]

I have one Mitutoyo that will reach in 1.850"... if it is a longer cartridge I reach in as far as I can... I also have some Deltronic pins in some calibers...

Some barrels are truer than others, even within the same maker... and there is no guarantee one method of chambering is better than another...

 

[buckbrush]

I have always used Rigid dark because I could get it from work free. I worked as a material manager on several Industrial Electrical jobs. We would get sent Rigid cutting oil to the jobs, dark or clear depending on what was cheaper at the wholesaler.

From the jobs that I managed over the years, I noticed some jobs had a much higher rate or tool wear on our threading dies. These dies are used on the Rigid 300, 500, 1000 power threaders, sort of a lathe for threading Electrical rigid conduits and other pipes up to 2"id.

It turned out the jobs using the Nu-clear had the much higher wear rates. So no more Nu clear for us and no more for me!