what action jig
- Thread starter Hal
- Start date
D
Dennis Sorensen
Guest
Hal, if you click on the little blog entry under my post count it will take you to a blog about 700 truing. It shows one method.
Butch Lambert
Active member
Hal, Gretan makes stuff and you can get it also from Dave Kiff.
Butch
Butch
F
frwillia
Guest
Make your own.
You have to have a lathe to do it unless you use the Manson tool set which is clever but quite expensive. If you have a lathe, why not make your own action truing sleeve, mandrel, and bushings? None of the parts is rocket science, just normal lathe work.
Buy the mandrel shaft (12" to 14" of 1/2" drill rod or 1/2" precision ground shafting), a foot or two of 3/4" 12L17 rod to make the bushings out of, and a piece of 3-1/2" diameter rod end about 7" or 8" long, a few 1/2-20 bolts equipped with brass tips, will give you what you need to make the tooling. After that it's just a matter of some turning, boring, and tapping.
John Hinnant has drawings of all the tooling you need to do it his way in his book "The Complete Illustrated Guide To Precision Rifle Barrel Fitting". The long sleeve approach is what I outlined material to make above.
Fitch
You have to have a lathe to do it unless you use the Manson tool set which is clever but quite expensive. If you have a lathe, why not make your own action truing sleeve, mandrel, and bushings? None of the parts is rocket science, just normal lathe work.
Buy the mandrel shaft (12" to 14" of 1/2" drill rod or 1/2" precision ground shafting), a foot or two of 3/4" 12L17 rod to make the bushings out of, and a piece of 3-1/2" diameter rod end about 7" or 8" long, a few 1/2-20 bolts equipped with brass tips, will give you what you need to make the tooling. After that it's just a matter of some turning, boring, and tapping.
John Hinnant has drawings of all the tooling you need to do it his way in his book "The Complete Illustrated Guide To Precision Rifle Barrel Fitting". The long sleeve approach is what I outlined material to make above.
Fitch
B
BobB
Guest
Speaking of tooling...I've been thinking....
Instead of having a jig like Gretan shows in his exellent tutorial, why couldnt a chuck be made that does the same thing?
I've got a Grizz 13x40 that I've built a few guns for myself on and blueprinted a few actions.
I'm seriously thinking of making a chuck that has the needed projection for doing a bolt. I could machine the cam lock end of it to go into the machine,and then while its running I could bore the ID and the OD. It should make for a very accurate setup that you wouldnt have to fiddle with setting up and it would be more secure. Once the 8 holes were drilled and tapped in the right place, it would be just a matter of placing the bolt in there and adjusting it.
You just pop it in and when you are done you take it off.
Any ideas or suggestions on that?
Instead of having a jig like Gretan shows in his exellent tutorial, why couldnt a chuck be made that does the same thing?
I've got a Grizz 13x40 that I've built a few guns for myself on and blueprinted a few actions.
I'm seriously thinking of making a chuck that has the needed projection for doing a bolt. I could machine the cam lock end of it to go into the machine,and then while its running I could bore the ID and the OD. It should make for a very accurate setup that you wouldnt have to fiddle with setting up and it would be more secure. Once the 8 holes were drilled and tapped in the right place, it would be just a matter of placing the bolt in there and adjusting it.
You just pop it in and when you are done you take it off.
Any ideas or suggestions on that?
Last edited by a moderator:
H
henrya
Guest
A long v-block type fixture bolted to a face plate will get you there. A gunsmith I used to work with a long time ago did his bolt face alterations that way. This was opening military bolts to magnums and Remingtons from .222 size to .308 size. He ground some special tools for cutting and also used a tool post grinder.
Your idea of making a special fixture could work real well but I wonder if it would be worth doing unless you do a good bit of that work. There are easier ways I think.
Your idea of making a special fixture could work real well but I wonder if it would be worth doing unless you do a good bit of that work. There are easier ways I think.
Bill Leeper
New member
My fixture is simply a piece of heavy walled steel tubing with a dozen screw positions. I use 3/8 UNC set screws with brass tips. One has to use a bit of care when mounting the action. It is possible to distort things with the set screws if you aren't careful.
In use, the fixture is set up to run in the steady and four jaw chuck. I made it big enough to accomodate a model 70. Works fine. I have re-cut threads on Remingtons, Winchesters, Rugers, Sakos, MRC's, Springfields, P14's, and a Weatherby MKV.
The Weatherby MKV is a bit of a challenge because of the full diameter bolt and the inner shoulder in the receiver ring. Recutting those threads is a thrilling endeavor!
The idea of making a specialized chuck is a good one. Regards, Bill
In use, the fixture is set up to run in the steady and four jaw chuck. I made it big enough to accomodate a model 70. Works fine. I have re-cut threads on Remingtons, Winchesters, Rugers, Sakos, MRC's, Springfields, P14's, and a Weatherby MKV.
The Weatherby MKV is a bit of a challenge because of the full diameter bolt and the inner shoulder in the receiver ring. Recutting those threads is a thrilling endeavor!
The idea of making a specialized chuck is a good one. Regards, Bill
P
pickles
Guest
Bill, what size tube ID do you use for your jig??
thanks
Semper fi
thanks
Semper fi
Bill Leeper
New member
It is 2 inch bored to 2 1/4. OD is 3 1/2. Regards, Bill.
ultramagmed
JKM
Where can you buy the tube used to make an action turing jig? Do you use steel or aluminum, or does it matter? I've been looking for some tube or pipe for sometime and have not been able to come up with anything. Any suggestions are appreciated!!
Thanks, Med.
Thanks, Med.
J
Jackson~in~GA
Guest
Check with local machine shops. I have also ordered some stuff from Marmon Keystone Tubing. Just do an internet search and you'll find their website. Keep in mind that short lengths are gonna cost you.
H
henrya
Guest
metal supply
Try this:
http://www.speedymetals.com
They have all kinds of metals and will sell by the inch.
Try this:
http://www.speedymetals.com
They have all kinds of metals and will sell by the inch.
R
remmy700
Guest
B
BobB
Guest
Nice pictures. That is exactly what I was thinking.
Does it work well?
Does it work well?
R
remmy700
Guest
Bob
Works just fine, it is heavy, which is what you want, lathes work better with a decent mass hanging from the spindle. A picture tells a thousand words doesn't it???
Works just fine, it is heavy, which is what you want, lathes work better with a decent mass hanging from the spindle. A picture tells a thousand words doesn't it???
B
BobB
Guest
It does.
And I thought I had an original idea...
And I thought I had an original idea...