700 Bolt Extraction Problem

[JAYgs8163]

I'm not a smith but if his bolt extracts from his son's gun and his son's bolt doesn't extract from his gun, doesn't sound like the bolt is the problem. Correct me if I'm wrong.
Daryl

Sounds logical and it's quite possible, but more than likely any bolt used is going to need to retimed as well as some other items mentioned in post 6. At least my rig had the same issue and correcting the timing resolved the issue. Modify the action enough and run ANY non-modified bolt and more than likely it will not work on extraction is how I understood it when I had this issue, especially on prefix RR actions. I'm not a Smith and am just sharing my experience with this same problem.

 

[nevadalineman702]

Sounds logical and it's quite possible, but more than likely any bolt used is going to need to retimed as well as some other items mentioned in post 6. At least my rig had the same issue and correcting the timing resolved the issue. Modify the action enough and run ANY non-modified bolt and more than likely it will not work on extraction is how I understood it when I had this issue, especially on prefix RR actions. I'm not a Smith and am just sharing my experience with this same problem.

So over the past 2 years I have had 4 Rifles all of which utilized 700 actions. All were blue printed and squared, non were re-timed for primary extraction, all had issues which my local smith worked and re-timed all of them, zero issues now. Just because someone tells you they have "blue printed " and "squared" the actions does not mean you are done. If they haven't re-timed the bolts you will not be happy.

 

[JAYgs8163]

So over the past 2 years I have had 4 Rifles all of which utilized 700 actions. All were blue printed and squared, non were re-timed for primary extraction, all had issues which my local smith worked and re-timed all of them, zero issues now. Just because someone tells you they have "blue printed " and "squared" the actions does not mean you are done. If they haven't re-timed the bolts you will not be happy.

Pretty much exactly what I said. I couldn't agree more.

 

[Timnterra]

Primary extraction is not used unless the round is fired and the case swells tightly into the chamber it will not cause a failure to extract on an unfired round. The problem sounds like bad headspace if the sons bolt will also not pick up the round to extract it. Unless I missed it there has been no mention of if this was a take off another rifle or prefit barrel with a barrel nut. The op said it was headspaced correctly but the question must now be how did you set headspace and determine it was correct?

 

[Timnterra]

To be clear of what I think the problem is. I believe you accidentally improperly set the headspace the Remington extractor when deformed can slide out blocking the case from seating completely into the bolt face. If you are doing what i assume to be a remage set up from preferred barrels then I also assume you established headspace by screwing the barrel down till it contacted the go gauge and tightened the barrel nut. If the headspace gauge was caught on a faulty extractor instead of seating all the way down Into the bolt then you have a headspace measurement that is about 100 thousands too long and will never extract no matter what you feed it or what bolt you use. This is why your sons bolt would not work either. The extractor never snaps over the case because it can't reach. Do this for me to easily confirm or deny. Snap the no go gauge into your bolt under the extractor and feed it in to see if the bolt closes. If the bolt closes you have confirmation if not then it is a really odd situation indeed

 

[jdyoung]

So my .270 Win build from hell is now twisting me up. I put it all together and was waiting for triggerguard screws. I swiped some from another rifle and decided to do a test feed which I should have done right after headspacing last week but did not. No clue why I didn't. So I load up the COAL I am going to use and it fed perfectly and bolt closed perfectly but will not extract any case I use. Double checked headspace and perfect.

I had the receiver trued up, lugs and whole nine yards done by a reputable gunsmith that I trust very much.

Fire control works fine, cocks, fires and safety works fine.

So what simple thing am I missing here to fix this extraction? I can place a round into the bolt head and it will grab it and hold it for extraction. I have built 3 other 700's and never had this problem before. I know what is probably the cause but I am hoping otherwise so hoping someone will provide a solution that I don't want to address with action.

Muddyboots, does this rifle have a barrel nut ?

 

[Muddyboots]

Yep, Remage from Preferred barrel. Headspaced perfectly tested perfect with no go as well. I am befuddled.

 

[Muddyboots]

To be clear of what I think the problem is. I believe you accidentally improperly set the headspace the Remington extractor when deformed can slide out blocking the case from seating completely into the bolt face. If you are doing what i assume to be a remage set up from preferred barrels then I also assume you established headspace by screwing the barrel down till it contacted the go gauge and tightened the barrel nut. If the headspace gauge was caught on a faulty extractor instead of seating all the way down Into the bolt then you have a headspace measurement that is about 100 thousands too long and will never extract no matter what you feed it or what bolt you use. This is why your sons bolt would not work either. The extractor never snaps over the case because it can't reach. Do this for me to easily confirm or deny. Snap the no go gauge into your bolt under the extractor and feed it in to see if the bolt closes. If the bolt closes you have confirmation if not then it is a really odd situation indeed

Great suggestion and will do that and report. Thanks!

 

[Muddyboots]

I would remove extractor if not for them being rarer than Pelosi at a gun show.

 

[Hugnot]

Would this replace the existing extractor?

Remington Extractor (STD) - Pacific Tool and Gauge

Remington Large Extractor (New Style) at Pacific Tool and Gauge

pacifictoolandgauge.com

I have an olde M700 with a riveted extractor and am considering a M16 type extractor.

Sure sounds like an extractor problem.

 

[Rflshootr]

To be clear of what I think the problem is. I believe you accidentally improperly set the headspace the Remington extractor when deformed can slide out blocking the case from seating completely into the bolt face. If you are doing what i assume to be a remage set up from preferred barrels then I also assume you established headspace by screwing the barrel down till it contacted the go gauge and tightened the barrel nut. If the headspace gauge was caught on a faulty extractor instead of seating all the way down Into the bolt then you have a headspace measurement that is about 100 thousands too long and will never extract no matter what you feed it or what bolt you use. This is why your sons bolt would not work either. The extractor never snaps over the case because it can't reach. Do this for me to easily confirm or deny. Snap the no go gauge into your bolt under the extractor and feed it in to see if the bolt closes. If the bolt closes you have confirmation if not then it is a really odd situation indeed

Exactly my thought. Recheck the head space with the no-go gauge. Put the rim of the gauge under the extractor FIRST....then slide it in the chamber and see if the bolt closes.

 

[Hugnot]

Yep, Remage from Preferred barrel. Headspaced perfectly tested perfect with no go as well. I am befuddled.

Exactly my thought. Recheck the head space with the no-go gauge. Put the rim of the gauge under the extractor FIRST....then slide it in the chamber and see if the bolt closes.

My simple thinking is:

The extractor is a thin, flexible spring steel designed for push feed (snap over rim) actions. .270 W brass rim thickness should be .045 - .050 for a total back from base to start of groove of about .110, meaning a huge amount of head space to allow the edge of the extractor to miss getting into the groove on the brass. With this amount of head-space and the ejector pushing on the base of the case and a firing having protrusion of about .065 would not set off the primer.

I messed around with a variety of M700's, enough to be real critical of extractor worth. Our M700 is a single shot .22-250 rodent rifle & if the extractor fails the 1st time no big deal, just re-cycle again.

 

[Muddyboots]

To be clear of what I think the problem is. I believe you accidentally improperly set the headspace the Remington extractor when deformed can slide out blocking the case from seating completely into the bolt face. If you are doing what i assume to be a remage set up from preferred barrels then I also assume you established headspace by screwing the barrel down till it contacted the go gauge and tightened the barrel nut. If the headspace gauge was caught on a faulty extractor instead of seating all the way down Into the bolt then you have a headspace measurement that is about 100 thousands too long and will never extract no matter what you feed it or what bolt you use. This is why your sons bolt would not work either. The extractor never snaps over the case because it can't reach. Do this for me to easily confirm or deny. Snap the no go gauge into your bolt under the extractor and feed it in to see if the bolt closes. If the bolt closes you have confirmation if not then it is a really odd situation indeed

Initially checked headspace again and was GTG EXCEPT when I made it a point to get the headspace gauge locked under the crummy extractor and oh oh! I think the LRH brain trust hit the mark! I didn't have time to actually headspace but I think this is on right track. Ordering new extractor from PTG as well. I will post up tomorrow once I strip off scope etc. and reheadspace it.
Thanks

 

[shortgrass]

I had a Savage 110 come into the shop awhile back, had the same problem, wouldn't extract a case that had not been fired. With that, never did try to fire it before looking for the problem. The barrel was not properly head spaced and the chamber had been hand reamed to AI. The barrel could not be screwed back any further to correct the head space, 'cause it would interfere with the bolt. The case head/extraction groove was just to far away for the extractor to grab it.