Rem 700 223 bolt Ext groove undersized

[paperpuncher]

So I had a factory Remington 700 bolt in my drawer for several years saving it for a project. I put together a rifle and used the bolt and a part of the build. Got it all done and installed the ejector and snapped in the extractor (factory remington style) and went to function test the rifle. I discovered that the bolt will not close, it functions fine without the extractor installed. I notice that the extractor will not slip over the case rim. I took some measurements and found that the recess that the extractor goes into is too shallow to allow the extractor slide out of the way so it can slip over the rim of the case. I compared it to my sons 223 rem bolt and I found about .025" difference. Has anyone encountered this before? Im thinking Ill try recut that feature on the bolt unless someone has a better suggestion. I thought about reducing the extractor surface a bit but there is not much material to begin with and then the bolt would require a "special" extractor to function correctly. I suppose the mini m-16 is an option as well.

 

[Stan Taylor]

I would like to see pictures of it in the bolt face an laying beside of face.

 

[paperpuncher]

I would like to see pictures of it in the bolt face an laying beside of face.

A picture of the brass in the bolt? A picture of the extractor in the bolt?

 

[swd]

Can the extractor expand into the grove in the bolt? I’ve seen bolts with a dings and damage to the slot and extractor had a hard time expanding enough to let the rim past.

Also some de burr and polishing on the extractor face can go a long ways!

 

[Stan Taylor]

A pic of extractor in bolt an out of bolt something didn't sound right.

 

[paperpuncher]

Can the extractor expand into the grove in the bolt? I’ve seen bolts with a dings and damage to the slot and extractor had a hard time expanding enough to let the rim past.

Also some de burr and polishing on the extractor face can go a long ways!

The extractor does not move into the groove enough to allow the extractor to slip over the rim. The extractor is free and not binding, no dings in the bolt nose or the recess. The bolt cut will not allow the extractor to move the required amount to permit it to function

 

[paperpuncher]

A pic of extractor in bolt an out of bolt something didn't sound right.

I took the extractor out and put it into another 223 rem bolt it works fine. The problem is with the cut for the extractor. I can post pics when I get home. I measured the depth of the cut in the bolt nose with a small ball bearing and a pair of calipers and when compared to a bolt that is known to be good the cut is approx .025" shallower. This is a rough measurement I will grind a mandrel and install it in an anvil mic and get a solid number later today

 

[Stan Taylor]

A picture is really nice to see though but you are looking in the right direction.

 

[paperpuncher]

A picture is really nice to see though but you are looking in the right direction.

Ill take some when I get home

 

[Ggmac]

Ill take some when I get home

How old was this donor ? Are you sure of the type of extractor ?

 

[paperpuncher]

How old was this donor ? Are you sure of the type of extractor ?

I dont know the vintage of the bolt it is one of the ones with the flat black oxide finish like the ones from the cheap adl with the plastic stock. I am sure I have the correct extractor

 

[paperpuncher]

Stan here are the images

 

[paperpuncher]

I mic'ed the recess in the problem bolt and a bolt that is good
Good bolt was .083" thick
Bad bolt was .110" thick
By my calculations the recess is .027" too shallow

Pic shows measurement of the recess that the extractor is forced into as it slips over the case rim

 

[Ggmac]

I mic'ed the recess in the problem bolt and a bolt that is good
Good bolt was .083" thick
Bad bolt was .110" thick
By my calculations the recess is .027" too shallow View attachment 1099874
View attachment 1099875
Pic shows measurement of the recess that the extractor is forced into as it slips over the case rim

You've got funny skin as my grandniece would say !

 

[paperpuncher]

You've got funny skin as my grandniece would say !

Too much yard work last weekend got blisters Trying to keep the coolant and oil out of my cuts. Looks a little like the Batman

 

[Stan Taylor]

I guess you don't want to share the pictures of extractor in bolt an the actual pic of extractor that you used.

 

[Shawnba67]

Too much yard work last weekend got blisters Trying to keep the coolant and oil out of my cuts. Looks a little like the Batman

Please post the process if you try to open it up.
I have heard its not as straigtforward as it seems.

 

[paperpuncher]

I guess you don't want to share the pictures of extractor in bolt an the actual pic of extractor that you used.

Stan they are in post #12

 

[Stan Taylor]

Stan they are in post #12

sorry I didn't see it.

 

[boltfluter]

I believe Greg Tannel of GreTan rifles is set up to fix this issue. Seems quite a few bolts left the factory this way before they woke up. Good luck and let us know.

Paul