• This Forum is for adults 18 years of age or over. By continuing to use this Forum you are confirming that you are 18 or older. No content shall be viewed by any person under 18 in California.

Action Truing Jig Help

Hey fellas,
I need some help with my truing jig I am in the process of machining. My problem is, is that I have no idea of the locations for the 4 holes in the front of the jig and the 8 holes in the back for doing REM 700 long and short actions. Could somebody please help me or point me in the right direction? Any reliable dimensions would be greatly appreciated as I only have one piece of material, so I need to get it right the first time. Thanks again guys...
Did you get what you needed? I can shoot you the dimensions for the one I just made.
 
The rods are even more important on the rem. Because it's more warped. In a straight race way the bushings would produce the same results as the rods. Assuming they were concentric bushings. The more warp in the race way the more important a solid rod is.
So if I'm following what you are saying correctly, having the action lugs, face and threads all parallel and concentric with one another is the primary concern? I understand the action needs to be dialed in as closely as possible but given that the raceway is unlikely to be perfectly straight the objective is to true these 3 areas up and allow the bolt to 'drift' into position? Is that about right?
 
A lot of it was based on "feel" so don't take the measurements too seriously.

The aluminum shim for the action is a couple thou under size of the action, then I milled out a slit.

The screw spacing is 1.56" apart.

The end with the screws close to the edge is the inboard end, so I can get an indicator dial as close to that point as possible... and the other end is the chuck side.. it's got a little extra room between the end and the screw just to make adjustments a little more comfortable.

Use a fine thread screw.
 

Attachments

  • 22-10-15 13-29-25 8767.jpg
    22-10-15 13-29-25 8767.jpg
    463.2 KB · Views: 68
  • 22-10-15 13-29-38 8768.jpg
    22-10-15 13-29-38 8768.jpg
    389.3 KB · Views: 61
  • 22-10-15 13-29-47 8769.jpg
    22-10-15 13-29-47 8769.jpg
    386.9 KB · Views: 62
  • 22-10-15 13-29-59 8770.jpg
    22-10-15 13-29-59 8770.jpg
    367.3 KB · Views: 64
Is there enough interest to have a group buy put together? If so I’d like to know what’s available.
Thanks
Joe
So far two have tried and tolerances couldn’t be met. I’m sure Alan Warner would do another run but some don’t want to pay the price for what he needs to get for his. His were very high quality and tolerance. JGS has made them in the past but they are so busy with reamer sales that I have doubts they’d want to touch it. My local grind shop that we used and certainly could have done it has closed down.
 
So far two have tried and tolerances couldn’t be met. I’m sure Alan Warner would do another run but some don’t want to pay the price for what he needs to get for his. His were very high quality and tolerance. JGS has made them in the past but they are so busy with reamer sales that I have doubts they’d want to touch it. My local grind shop that we used and certainly could have done it has closed down.
I talk to Sam at JGS and he said they won’t do the job even with a group buy. There was a precision grinding shop in the town close to us but he retired. I’m going to contact the guy who bought his equipment and see if he’s interested in doing anything like this. What was Alan Warner looking for to do a set? I’m thinking .701-.7035, half thou steps so six bars as stated in one of the posts.
 
Warner was $750 for 5 bars but would add additional if you wanted them at $150 per bar.

Qty 6, hardened and ground 12" long rods in .0005" increments from .701-.7035". Dia .0001” and straightness .0001” per ft or less

5 or 6 pc. set , 150.00 ea.
Please send an email to WTC@ne.rr.com with your contact info, phone, email
and sizes you want. I will require a 50 % deposit.
Thanks
Alan Warner
603 352 9521
 
Put a price out there and we’ll check interest. Im guessing zero at $750 but i know they would be nice. I damn sure dont use em that much
So, I guess my question is. As someone just getting into the trade and wanting to be able to check a Remington 700 action. True the action face and bolt lugs if they are off more than lapping would cure. Given the fact that precision ground indicating rods in half thou sizes held to 2 tenths tolerances are not readily available. Is the next best solution to try to carefully turn my own indicating rod, knowing I am incapable of producing one to these tolerances? I have tried to do this while waiting to find a source and the best I can get is a rod that has a very good slip fit to the actions I have but has a little over a thou of taper in 12”. The runout checked along several spots is just a couple tenths out but it has that thou of taper. The only way I have tested for straightness is rolling it on my surface plate ( probably not the most scientific method). These actions are intended for hunting and some steel plate over the course events we hold out in the desert. If we can get 1/2 to 3/4 MOA from a rifle it’s a contender. Thanks in advance for any advice for a novice.
Joe
 
These actions are intended for hunting and some steel plate over the course events we hold out in the desert. If we can get 1/2 to 3/4 MOA from a rifle it’s a contender.
For basic rifles and factory actions the easy button is probably getting the PTG rod and bushings. I’ve never tried or been able to compare the Manson system with the tapered bushings.
 
Taper wont hurt you so long as the fit is good. Runout will. It will take a long time but you polish down that rod with emery. Light cuts untill your within .001 or less then polish it down. Let things cool when you get close. By the time you make a set 750 will sound cheap though
 
Last edited:
Taper wont hurt you so long as the fit is good. Runout will. It will take a long time but you polish down that rod with emery. Light cuts untill your within .001 or less then polish it down. Let things cool when you get close. By the time you make a set 750 will sound cheap though
Thanks, it took a long time to make that one rod:) . I got it close one afternoon then let it cool overnight. Cut the last few thousands the next morning with very light passes and did finish it with emery cloth. One of the reasons I was hoping to find a set of rods already made up. I’m lucky that one rod fits most of the untrued 700’s I have. If I had to do many more of these the precision rods would be worth the investment
 
For basic rifles and factory actions the easy button is probably getting the PTG rod and bushings. I’ve never tried or been able to compare the Manson system with the tapered bushings.
Thanks, once I'm done with this batch of 700’s I’ve been gathering I'm not sure how many more I’ll look at. I am trying to learn about all the options available. I’ve only ordered one reamer from PTG and it was a difficult transaction. That’s why I talked to JGS about making a run of rods but they aren’t doing it anymore. Appreciate the help.
 
Show me $750 worth of improvement on the target. Just saying

100%. I would still like to see a person prove that truing an action actually shows up on the target. The response always is "it must be better". I do know one feller that did test the trued action versus the non-trued action and his outcome was that you could not see it on the target.

I think I would take that money and just put it on a better action if I were convinced that the trueness of the action is what makes it shoot. Not to mention the fact that I'm not even sure you're going to be able to get Remington 700 actions in the future. Certainly not on the cheap like it was in the old days.
 
Whether or not it matters, people will want it done. Having the tools to be able to do a job can't hurt. I just cleaned up the threads on an old action that were pretty nasty. Does it matter? Probably not. But it looks nice and feels nice.

It's like wearing clothes that fit. You're the same person but you feel better.
 
So, I guess my question is. As someone just getting into the trade and wanting to be able to check a Remington 700 action. True the action face and bolt lugs if they are off more than lapping would cure. Given the fact that precision ground indicating rods in half thou sizes held to 2 tenths tolerances are not readily available. Is the next best solution to try to carefully turn my own indicating rod, knowing I am incapable of producing one to these tolerances? I have tried to do this while waiting to find a source and the best I can get is a rod that has a very good slip fit to the actions I have but has a little over a thou of taper in 12”. The runout checked along several spots is just a couple tenths out but it has that thou of taper. The only way I have tested for straightness is rolling it on my surface plate ( probably not the most scientific method). These actions are intended for hunting and some steel plate over the course events we hold out in the desert. If we can get 1/2 to 3/4 MOA from a rifle it’s a contender. Thanks in advance for any advice for a novice.
Joe
Some of the companies that make pin gages make 12" pin gages- the sizes we would need seem to be in the 100.00 to 150.00 range- i thought of trying one or more of these
 
Some of the companies that make pin gages make 12" pin gages- the sizes we would need seem to be in the 100.00 to 150.00 range- i thought of trying one or more of these
None of the long pin gages I’ve ever seen come with a straightness guarantee due to they are centerless ground. Meyer gage states that specifically in their custom gage info. Do you have a source or reference for 12” long pin gages that guarantees straightness?

 

Upgrades & Donations

This Forum's expenses are primarily paid by member contributions. You can upgrade your Forum membership in seconds. Gold and Silver members get unlimited FREE classifieds for one year. Gold members can upload custom avatars.


Click Upgrade Membership Button ABOVE to get Gold or Silver Status.

You can also donate any amount, large or small, with the button below. Include your Forum Name in the PayPal Notes field.


To DONATE by CHECK, or make a recurring donation, CLICK HERE to learn how.

Forum statistics

Threads
166,224
Messages
2,214,374
Members
79,485
Latest member
bhcapell
Back
Top