Rem 700 extraction cams after 5600 rounds

guntech

guntech

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Well guys, if you are having initial extraction problems with your 700 and notice your cams are damaged... it is because of hot loads...

Here is a left hand 700 in .243 Winchester with 5600 rounds through it... and the extraction cams look like new... obviously never over loaded.. bolt face isn't cut either..

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I object, your honour! :) Okay, this may be true IF cam engagement is set up correctly in the first place. One of the three 700s I have now has a nice gouge on the bolt-side cam, as it simply bypasses the cam on the action & smacks right into the edge behind it. One of the others had a similar condition until I had it fixed. The third one is an early 80s .280. And yes, it looks much like the pictures.

5600 rounds....that's pretty impressive if it was the same barrel throughout.
Rooster
 
The newer rem700s are mostly low quality guns. Yours is surprisingly well made tho. May I ask what year is it?
 
Canada tail said:
The newer rem700s are mostly low quality guns. Yours is surprisingly well made tho. May I ask what year is it?
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I true new and old 700's... I have seen lots of new ones as good as the old in tolerances.

This rifle has a number G69###xx... that's almost 7 million...
 
There IS a wide variation in Remington 700 extraction cam surfaces and the relationship between them. I had one in the shop which had zero primary extraction; no contact whatsoever. Others have worked poorly and some have been perfect. A pretty good example of how a design can be just fine but the execution may fall short. Damaged camming surfaces were common on BR rifles largely because BR shooters liked to load HOT.
 
The sliding parts on this action since day one when it was purchased from Reliable, have been coated with automotive cv axle grease.
It is the original barrel, and it still shot 3/4 moa out to 600 yards. I was finding lately (within the last 500 rounds) that out of every 5-6 rounds I would experience a 4-6 moa flyer.
The gun was never overloaded as I don't see any reason for doing that. I did get average of 23-28 firings on my brass with no failures. Nosler, Lapua and Winchester brass was used and all performed equally well. No annealing was done, as I don't have a setup for doing this yet.
 
The neighbour kid bought a stainless 700 from his uncle for cheap because it had extraction problems and he brought it over for me to look at. Turned out that the two cam surfaces do not touch and I measured the gap at .119. With that kind of gap the cam surfaces should look new forever.
 
Leeper said:
There IS a wide variation in Remington 700 extraction cam surfaces and the relationship between them. I had one in the shop which had zero primary extraction; no contact whatsoever. Others have worked poorly and some have been perfect. A pretty good example of how a design can be just fine but the execution may fall short. Damaged camming surfaces were common on BR rifles largely because BR shooters liked to load HOT.
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I wish Remington spent more time installing the bolt handle more precisely... it's really the only complaint I have about a 700.
 
Originally Posted by#Leeper#

There IS a wide variation in Remington 700 extraction cam surfaces and the relationship between them. I had one in the shop which had zero primary extraction; no contact whatsoever. Others have worked poorly and some have been perfect. A pretty good example of how a design can be just fine but the execution may fall short. Damaged camming surfaces were common on BR rifles largely because BR shooters liked to load HOT.
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So back in the day when BR shooters were using 700 actions what was the solution after camming surfaces and both handles were damaged?
 
When the US Army was specifying one upgrade or another to the M40 series rifles, they wanted a new extractor. If memory serves, they wanted a Tikka style vs the Remington factory. It was just more robust and durable. I suspect it was also because the factory tolerances were showing unsatisfactory failure rates after heavy use.

Edits below.

Sako not Tikka, and some places will install an M16 extractor if you are especially concerned. The comments on other sites indicate the failure rate is exceptionally low, and the fix solves a problem that never existed.
 
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maple_leaf_eh said:
When the US Army was specifying one upgrade or another to the M40 series rifles, they wanted a new extractor. If memory serves, they wanted a Tikka style vs the Remington factory. It was just more robust and durable. I suspect it was also because the factory tolerances were showing unsatisfactory failure rates after heavy use.
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More robust and durable is not a fact...

The original extractor is just fine.. you can hang a few hundred pounds from it. I suspect it is not the easiest for the military to replace in the field if one were to fail...

The odd extractor may fail but there are millions that have not with a lifetime of shooting. It makes the 700 seal up like no other 2 lug bolt action.
 
Excuse my lack of knowledge, but what exactly does the extraction cam do?

I ask because all of my M700's have had gaps between the action and the bolt (in the extraction cam area), yet I haven't experienced any extraction issues.

For example:

 
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