Rem 700 Long Range - Case extraction and accuracy issues

Kirk930

Kirk930

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I have a new (~50 rounds through it now) Remington 700 Long Range in .300 WinMag that I am having case extractions issues with.

New unfired rounds will chamber and extract with no issues, but when fired the bolt is very difficult to pull back in most instances. Usually requires a very hard pull or sometimes a tap with something solid. It does this with several types of factory ammo, and quite noticeably with Hornady ELD Match rounds.

This video I found shows the exact issues I am having:

https://www.youtube.com/watch?v=qZQ_4ZCoAp0

The barrel and chamber have been thoroughly cleaned. You can see marks on the extracted casings just above the belt-line.

Looking online it seems that these guns having a "tight chamber" from the factory is not an uncommon problem with the Rem700. Many people have had the chamber polished or lightly reamed to eliminate this issue.

Am I looking at a gunsmith for this work or something that can be DIY?


Also, possibly related.....I can't get this rifle to group better than 3-4 MOA. I've only shot factory ammo so far, no hand loads. Checked bolt torques, scope, etc. Not sure what is going on. I haven't had a chance to really focus on the accuracy issue when almost every shot jams the bolt!

Rem700 LR
.300 Win Mag
TriggerTech trigger
Grizzly Defcon-1 clamp-on brake
Harris bipod
Bushnell Engage 6-24x50 scope
 
Can you post photos of the fired cases, showing the marks?
If the bolt closes freely on a factory round, the chamber shouldn't be "tight". It could be rough.

Try the rifle without the clamp on brake, to eliminate one variable.
 
I'll can post some pics tonight.

Rifle was fired prior to brake installation with the same issues. I thought a brake installation might tame barrel jump somewhat and improve the groupings. Made a big difference in reducing recoil but not improving precision.

Bolt closes fine on factory rounds and they will extract perfectly if they are not fired.

Bolt will not close with fired cases without a lot of pressure being applied to push round into chamber. Extraction at that point is just as difficult.

Chamber doesn't appear to be rough but I don't have a borescope to check it out.

Marks are all by the belt line, not on neck or shoulder.
 
It's behaving as though the load is too hot. Since you are using factory ammo and I assume an original factory barrel I want to believe you are dimensionally correct... although that may be misplaced optimism.

If you hand load, I would be curious if you can resolve the problem with a lighter load. Not that this is a fix for the root problem but it could get you out moose hunting this season with the least amount of grief.

Beyond that... you might try ordering a USB endoscope from eBay or Amazon for about 20 bucks and examine the chamber for tool marks. Could be the chambering reamer was on it's last leg and leaving spiral tool marks in the chamber that provides too much gription.
 
From what I've read online researching this problem I'm seriously thinking it may be a Remington QC problem. Sounds like there's been lot's of issues like this with Remington rifles of late. :(
 
It would really depend on the exact nature of the problem. Occasionally a badly reamed chamber gets out of the factory.
If a chamber is scored by reamer problems, those cuts can only be polished out by removing metal until the cuts are gone. That might make things worse. Setting the barrel back a bit and recutting the chamber might be a solution. But that is getting serious.

If you bought this rifle new, I would suggest going back to the dealer. A new rifle should work.
 
I did buy the rifle new. The problem is that it sat in my safe for well over a year before I even put a scope on it and then a few more months before I fired it for the first time! Not sure if they'd accept that.
 
Sounds like the chamber is rough, as round fires the case expands from the gas pressure and gets fire formed to the shape of the chamber, it will pick up any scouring and grooves in the chamber wall and cause additional friction makes it difficult to extract, polish the chamber and remove any unevenness will solve the issue, since this is an accuracy rig I would highly suggest you take it a reputable gunsmith.
 
Primary extraction camming loosens the fired case and starts it on its way back out of the chamber. I'd have to look it up, but probably exerts 8 times as much rearward force as just pulling back on the handle. With the bolt closed and the firing pin forward, start to open the bolt and see when the root of the bolt handle makes contact with the matching surface of the receiver. The sooner the better.
Doesn't mean that this is the problem with your rifle, but it is worth checking.
It would help if you post photos.
Where in Ontario are you located? Might be a good gunsmith in your area.
 
Also, Gravel Agency is Remington warranty center here give them a call they are a great company and will take care of you. They are just in Quebec.

Edit: Remington now offers a limited lifetime warranty and this would qualify, best to check out what they will do before it goes a gunsmith and they deny your warranty.
 
By all means, contact Gravel. Have the rifle inspected by an authorized service center. If you, or a gunsmith, do anything to the rifle, you are on your own.
 
Contacted Gravel. They replied right away with RMA instructions and said it will likely be covered under warranty based on what I have described.

Will be interesting to see what they find!
 
Kirk930 said:
Contacted Gravel. They replied right away with RMA instructions and said it will likely be covered under warranty based on what I have described.

Will be interesting to see what they find!
Click to expand...

buji88 said:
Let us know how it turns out, the anticipation is killing me!
Click to expand...

Yes, very interested to know how this turns out for you as well.
I recently acquired a new Rem 700 LR and haven't even mounted glass on it yet....

Let us know how it works out!
 
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