Gunsmithing To get a no/go gauge or not.

[dannydifalco]

So i had two 700's both .308 sps. I guess when i was cleaning them i mixed up the bolts with the serial numbers and now i have a 700 with a different bolt. I know the easy answer would be switch them back over but i sold the other 700. So the question is should i buy the gauges? I have already shot it and it closes smoothly with a round in the pipe. If this is the case should i just buy atleast the NO gauge? Thanks guys!

Oh and what it the purpose of a field gauge? I always just used NO and Go gauges....

 

[Keith Johns]

Re: To get a no/go gauge or not.

You need to contact whoever you sold the other rifle to and tell them they may have a problem.
Your bolt should have a 4 digit number on it that matches the last 4 of your receiver. If you indeed do have the wrong bolt in the gun, and possibly sold someone an unsafe rifle, you need to correct it.
There are more dimensions than just headspace to worry about.


A field gauge is like .007" past a Go. Its for machine guns and shit... doesn't have any use around a bolt gun.

 

[turbo54]

Re: To get a no/go gauge or not.

Field gage is usually +.006" or .007", which is ok for one-time brass use for service rifles.

 

[2156SMK]

Re: To get a no/go gauge or not.

When talking about the 223 family:
1.464" GO
1.467" NO-GO
1.470" FIELD

So that's 0.006" from GO to FIELD.

When talking about the 308 family:
1.630" GO
1.634" NO-GO
1.638" FIELD

So that's 0.008" from GO to FIELD.

 

[dannydifalco]

Re: To get a no/go gauge or not.

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: Keith Johns</div><div class="ubbcode-body">You need to contact whoever you sold the other rifle to and tell them they may have a problem.
Your bolt should have a 4 digit number on it that matches the last 4 of your receiver. If you indeed do have the wrong bolt in the gun, and possibly sold someone an unsafe rifle, you need to correct it.
There are more dimensions than just headspace to worry about.


A field gauge is like .007" past a Go. Its for machine guns and shit... doesn't have any use around a bolt gun.</div></div> I have contacted them and they no longer have the rifle and said they have in fact fired it with no problem also. What should i be worried about besides head spacing. What can i do to correct this?

 

[dannydifalco]

Re: To get a no/go gauge or not.

any ideas what my best bet is right now?

 

[Keith Johns]

Re: To get a no/go gauge or not.

Just not kool to send out a rifle not knowing if the bolt is correct.
Not saying you knew when you sent it.
If all is well then I guess all is well.

Other than headspace, the counterbore dimensions could be off. How much I don't know. Remingtons aren't very consistent.
A counterbore dimension being off doesnt mean an unsafe rifle, but it can effect accuracy, function, reliability...
Bolts just need to stay with the gun they belong to

 

[ARNEWB]

Re: To get a no/go gauge or not.

I keep Go and No-go gauges around for every caliber I shoot.

I don't use them often, but just for sanity sake, I check all my rifles at least once a year (often more if the rifle sees a lot of shooting).

Their not that expensive. Grab some and have some piece of mind.

As for your SPS, the best answer is to send it off to one of the custom guys and have a nice custom rifle built. Then you know the bolt, receiver, and barrel are all in the right tolerances. No more safety concerns, and you get an awesome custom rifle out of the deal...