remington extractor conundrum

[carlsbad]

It should go 100% of the way around. Use a good smith to put your extractor on. If you don't want to open up the nose of your barrel, the M16 extractor may be a non-starter. --Jerry

 

[kendog]

my lip extends pretty much half way around the bolt head. Can someone tell me how far around the circumference the lip should extend? ...

All the way. 100%.

 

[Ggmac]

The beveled piece should go completely around , your missing about half . It retains the extractor in a groove , and in some cases is riveted also .

 

[ab_bentley]

The beveled piece should go completely around , your missing about half . It retains the extractor in a groove , and in some cases is riveted also .

Bush the face and install a Sako.

 

[Eddie Harren]

Bush the face and install a Sako.

If you're going to replace, with an after market, go with the Mini M-16. Much safer than a Sako.

 

[carlsbad]

If you're going to replace, with an after market, go with the Mini M-16. Much safer than a Sako.

That's what people like to say but I don't fully buy it. The Mini M16 requires the nose of the barrel be opened up about .070" which provides a much bigger gap than design for gas to flow through.

The reports of sako extractors being blown out upon case failure likely come from large gaps between the bolt nose and the barrel. I would prefer a sako with the proper bolt nose gap to the barrel.

--Jerry

 

[JRS]

Jim Borden seems to believe in the SAKO extractors. It is the standard extractor on his actions. He does offer the M-16 as an option on the 308 and magnum bolts.

 

[ab_bentley]

That's what people like to say but I don't fully buy it. The Mini M16 requires the nose of the barrel be opened up about .070" which provides a much bigger gap than design for gas to flow through.

The reports of sako extractors being blown out upon case failure likely come from large gaps between the bolt nose and the barrel. I would prefer a sako with the proper bolt nose gap to the barrel.

--Jerry

Not mention the amount of metal that needs removed to install the M16 style.

 

[gunsandgunsmithing]

That's what people like to say but I don't fully buy it. The Mini M16 requires the nose of the barrel be opened up about .070" which provides a much bigger gap than design for gas to flow through.

The reports of sako extractors being blown out upon case failure likely come from large gaps between the bolt nose and the barrel. I would prefer a sako with the proper bolt nose gap to the barrel.

--Jerry

I agree. For a Sako extractor to come out of a bolt that fits PROPERLY with the counterbore, the extractor has to break. Now, with enough pressure, that...as well as just about anything becomes possible. The extractor is captive. It can't raise far enough to release, if the counterbore diameter is not too large.

 

[Eddie Harren]

Not mention the amount of metal that needs removed to install the M16 style.

The M-16 is retained by a cross pin. The Sako is retained by spring pressure. I guess it's a matter of opinion. Besides, who can argue with Jim Borden and Adam Bentley?

 

[ab_bentley]

The M-16 is retained by a cross pin. The Sako is retained by spring pressure. I guess it's a matter of opinion. Besides, who can argue with Jim Borden and Adam Bentley?

Ed, you set my name too high. It is just a difference of opinions.

 

[rayjay]

When the Sako equipped bolt is out of battery then it's held in by spring tension. When it's in battery in a properly fitted bbl then I think it's mechanically trapped and would have to break to escape.

 

[Dusty Stevens]

When the Sako equipped bolt is out of battery then it's held in by spring tension. When it's in battery in a properly fitted bbl then I think it's mechanically trapped and would have to break to escape.

Correct. No problem.

 

[snert]

Looking at that bolt face the old expression "that is as nice as hammered buzzard poop" comes to mind. Why fiddle with bushing, arguing about extractors etc, when you can buy a new aftermarket bolt? I think if I chipped, blew off, cracked, had machined off any part of my bolt face I would be saying "hmmm, maybe I should toss this part and get me a new one". And I would have the gun done by a real smith, not a tractor fixer...don't go back to that guy who did that work. Looks like something I might do when "trying this at home".

Just my thinking after reading all this and seeing the photos.

 

[Ggmac]

Headspace , further truing , timing , to name a few reasons to keep the old bolt . But I'm like you , after seeing a bolt stuck in a shooters shoulder , I'm not one to trust anything without verifying it's good .

 

[STS]

With all due respect to you gentlemen that think that a Sako extractor can't exit a Remington bolt I can tell you from experience that the can in fact make it out of there. I have personally witnessed it 3 times in my 45 years of shooting. I will offer the following for your consideration.
1. A friend and I were shooting P-dogs and he had a case failure after shooting several hundred rounds through one of his rifles. That extractor ended up on the Wyoming prairie somewhere without harm to the rifle or shooter.
2. In my first experience with a .17 Mach IV is didn't appreciate how quickly the .17 build pressure with increasing loads. I ruptured a case and that extractor exited the action and by the grace of God hit the rear of the loading port leaving a significant dent in the steel and not my face. I was very fortunate. Lesson learned.
3. I was serving as range officer at a silhouette match and one of the shooters has a case failure and ended up having the extractor surgically removed from his cheek.

In the first two examples above the bolt nose clearance was .008 per side. I barreled both of those rifles. I have no knowledge of the clearance in the third example. I have heard the claim for years that a SAKO extractor can not exit a Remington action and I will tell you that they most certainly can.

 

[kendog]

Correct. No problem.

That is why Sako incorporates a baffle in the right lug raceway on their design. Some folks call it a "Bolt Guide" or a "Guide Rib" , but it is in fact a baffle to catch junk from hitting you in the face should something (the extractor??) fail.

 

[Dusty Stevens]

I feel anytime a sako extractor fails (never actually seen it in my 20yrs of building rifles) it is due to a shoddy installation. Even tho a sako has the baffle ive never heard of a single failure to warrant needing it. The only time i hear of it is on a remington and im always assured it was installed correctly. The only failure of an extractor ive seen- br competitors will remember this- was a sliding plate extractor hitting a guy in the forehead (with catastrophic results) cant remember if it was a panda or farley but it was a coned bolt so there wasnt a ring to catch the carnage of the explosion anyway. There are soooo many sako extractors out there on ppc actions with no support and pressures a factory remington cant handle to start with. If there was a chance for a lawsuit jim borden who was mentioned earlier wouldnt have one on his fine actions.

 

[boltfluter]

Having spoken with Jim Borden recently he is going to design a new extractor to get away from the Sako. Just food for thought.

Regards, Paul

www.boltfluting.com

 

[kendog]

.... Even tho a sako has the baffle ive never heard of a single failure to warrant needing it. ....

Here is a few pictures of a Sako type rib and a mini 16 type extractor where the baffle did it's job. Mini Mauser in 7.62X39. Totally wrecked by a 23.4 grain charge of Accurate No 7. The intended powder was to be Reloder 7. Every part of the action was sprung or cracked. Only part left that was any good were the barrel and trigger. All the designed safety features built into the action allowed the shooter to walk away.