Iron Worker,
The Rem factory extractor and the Sako extractor are only as good as the smith installing them.
I used to give my customers an option if they wanted to retain the factory extractor or have me fit a Sako style extractor which I recommended. In all this time, I have only witness two Rem factory extractor fail. Unfortunately these two were two of my customers, one was hunting in alaska, the other was a comp shooter during an offical match.
Luckily the hunter out the bullet on the moose on the first shot well enough to kill the bull quickly because his rifle was done until they got back to camp.
The comp shooter on the other hand was SOL for that round of score.
I got a phone call from both after this happened and got a rather lively arus chewing even though I had recommended the Sako extractor upgrade. Both of them told me of horror stories about Sako extractor flying out of rifles and such and said they were not for them.
Well, after those two instances, which were very rare to be honest, I changed my policy that any Rem 700 receiver I accurized would get fitted with a Sako extractor just as part of the accurizing package.
If someone came back with the "flying out of the rifle" complaint which I have never seen without a severe case head failure or pierced primer pocket, then I will simply machine the bolt for a Badger Ord pinned in M-16 style extractor which simply will not come out.
Simply put, even though it is rare to see a Rem 700 extractor fail, it happens. And I do not like getting my arus chewed by a customer and do not put my faith in Remington anymore!!!
If a Sako extractor is fitted tight and properly, it will not fail you. If you load hot enough to pierce primers or use questionable cases where case head failure can occur or load hot enough for case head failure to occur, having a Sako extractor fly out of the rifle is the least of your worries or problems.
Just my policy and opinion.
Kirby Allen(50)