Remington 700 bolt

[supercorndogs]

I just got a replacement bolt from ptg. This is their 700/721 replacement bolt, no the 1 peice.

The problem is it won't close in any of my actions. Upon closer inspection this measurement is about .1 more than the other bolt i measured. Woukd this be what is stopping the bolt from closing? Can you cut that much off the lugs?

 

[Jscb1b]

Is it to long in the front of the lug or the back? Is the lug hitting the barrel or the recesses in the action?

 

[supercorndogs]

Looks like it's on the back of the lug but nearly as much as I said. The other bolt measures .440.

I have not pulled a barrel to see if it will close. I did make sure the nose fit Ina barrel I had laying around.

 

[Rubicon Precision]

.100” or .010”?
As far as I know, PTG or anyone else doesn’t offer drop in bolts for 700s.

Edit: are these bare receivers you’re trying, or are there barrels on them?

 

[supercorndogs]

.459-.440= .019

RH Remington 700/722/40X Short Action Factory Replacement Co

www.pacifictoolandgauge.com

Short action factory replacement bolt.

"Assembled and ready to be installed and the headspace checked by your gunsmith for safety and fit."

 

[powdahound76]

2 groups of peeps.

Those who have been screwed by PTG snd those who will be.

Looks like you about to change groups.



Not sure who you use for a smith down your way and worth talking to Fritz at Black Canyon Customs here in CO. Larkspur to be exact.
For my daughter, I had a SA 700 with a .473 bolt and had a .380 bolt to be fitted and a .223 barrel done up for it.
I didnt measure stuff, but wasnt right to start and he said it was easy peasy to fit it when doing the barrel.

Daughter is 13 now and thinks she is hot business smashing steel with ease at 500 and 600.
Seeing her watching the grass and mirage and tweak her wind hold just a touch between shots to get a follow up hit makes me real happy.


Anything he has done for me has been excellent and all our barrels from him are lasers.

 

[RTH1800]

@Terry Cross
Terry will know exactly what is going on here. Most of us just think we do.

 

[supercorndogs]

Beleive me. I have had my rounds with PTG. I emailed them yesterday not ever expecting to hear from them and they sent me an RMA to return the bolt this morning. Unfortunately my miss remembering also went in that email. So that got .100 first also instead of .019.

I am working on other stuff this morning. So I don't know if I pull a barrel today. I see what looks like maybe² rub marks on the front of the top lug. So maybe I can just whiddle it down with my angle grinder.

 

[Terry Cross]

I just got a replacement bolt from ptg. This is their 700/721 replacement bolt, no the 1 peice.

The problem is it won't close in any of my actions. Upon closer inspection this measurement is about .1 more than the other bolt i measured.

Oversize lugs ( I guess on purpose? ) so the bolt can be headspaced to the chamber instead of the other way around.

The back of the lugs would be relieved until the breech face is at the correct point in space when closed to fall into your target GO - NO GO range.

Probably but not guaranteed, by the time this is done, the bolt nose and front of the lugs will have sufficient clearance with the back of the barrel and bolt nose counterbore to allow closing and proper function.

Woukd this be what is stopping the bolt from closing?

It could be several things.

Does this bolt already have the handle soldered in place?

If so, it is a roll of the dice as to how much primary extraction cam engagement you are going to have once the lugs are fit to your action.

Remember that as you move the back of the lug, that is changing the relative position of the rest of the bolt and the already attached bolt handle with it.

In some cases, you could even end up with a properly head spaced bolt nose/lug but can't close the bolt on your particular receiver because the bolt handle is now too far forward and will conflict with the rear of the receiver.

The inverse of that is true as well. You could end up with a properly head spaced bolt and have it close freely but have almost no primary extraction available because the bolt handle is too far off the cam surface at the back of the receiver.

LOTS of variables and plenty of chances for things to not work optimally.
Remington receivers are all over the place dimensionally and PT&G is taking a best guess combined with their own production variations.

Can you cut that much off the lugs?

Certainly. Assuming the heat treat is not just 0.004" deep of some such shit.

The ideal situation would be to have a bolt w/o handle. - - - properly headspace the bolt to your receiver/barrel combo. - - - only then, position and time the bolt handle so that it has the most camming surface when going in and out of battery. TIG or silver solder in THAT position then rock on with your bad self.

Better full service shops like LRI offer that service and are really good at it.




For somebody that has a public education, I just typed a lot of shit. Hope this makes sense.