Bolt for remington 700 build

[Rich S]

I plan to purchase a PTG bolt for for a 6 Dasher build with a SA Remington 700 single shot action. I was thinking of going with the cone bolt instead of the standard bolt design. I was also planning to use a Sako extractor. Any down side to the cone vs standard bolt?

Thanks
Rich

 

[swd]

For a single shot a cone is a definate advantage. Be sure and go with a small pin for a Dasher.

 

[Preacher]

A coned bolt will feed better in any type of action....

 

[butchlambert]

Sako extractor?? Way too dangerous, use the m16 if the factory extractor is not offered.

 

[carlsbad]

Although I favor the sako over the M-16 in the traditional remington bolt because it does not require opening up the fit between the bolt nose and the barrel counterbore, my argument does not apply to the coned bolt.

The coned bolt does not have the tight fitting counterbore to secure the sako extractor in an overpressure event. Also, without the counterbore there is no negative design impact from the M-16 extractor. So I too prefer the M-16 extractor for coned bolt applications.

The coned bolt gives up the traditional "3 rings of steel" design by remington and replaces it with a tight passage between the coned faces. for safety it is very important to endure a good and tight fit between the bolt nose and the barrel.

--Jerry

 

[Preacher]

PT&G's Mini-16 extractors have been shaped so opening the fit does not apply to there's..
Do lots of them and never had to bother with opening the counterbore...

 

[carlsbad]

PT&G's Mini-16 extractors have been shaped so opening the fit does not apply to there's..
Do lots of them and never had to bother with opening the counterbore...

So your barrel counterbore is .705"? good deal. --Jerry

 

[WayneShaw]

I don't want to get into an argument, but there are a boat load of custom actions in use that have sako style extractors in coned bolts.

 

[Rich S]

Looks like PTG offers the Sako, M-16 or M-16 mini. So is the M-16 preferred due to the way it is pinned? Is there anything different with the customs actions using coned bolt and Sako that makes them safer than a Rem 700?

 

[butchlambert]

Looks like PTG offers the Sako, M-16 or M-16 mini. So is the M-16 preferred due to the way it is pinned? Is there anything different with the customs actions using coned bolt and Sako that makes them safer than a Rem 700?

No

 

[carlsbad]

Looks like PTG offers the Sako, M-16 or M-16 mini. So is the M-16 preferred due to the way it is pinned? Is there anything different with the customs actions using coned bolt and Sako that makes them safer than a Rem 700?

No difference in the ones that are remington pattern. The safety concern is that if you casing fails the pressure can dislodge the sako extractor and send it down the lug channel and into your cheek. M-16 extractors are preferred by many because they are pinned in place. (Sakos are held in place by a spring and a clever geometry.)

On a standard Rem bolt, when fitted correctly, I believe the sako extractor is captured by the counterbore in the barrel and not able to become a free projectile (some, including Butch above, disagree with me on this but I agree to disagree).

In a cone bolt, there is no tight ring of steel to capture the extractor should be become free, thus the M16 style clearly provides more safety.

I'm thinking of making another 6br and I may make it a cone bolt just for fun.

--Jerry

 

[Rich S]

Thanks for the advice.

 

[butchlambert]

No difference in the ones that are remington pattern. The safety concern is that if you casing fails the pressure can dislodge the sako extractor and send it down the lug channel and into your cheek. M-16 extractors are preferred by many because they are pinned in place. (Sakos are held in place by a spring and a clever geometry.)

On a standard Rem bolt, when fitted correctly, I believe the sako extractor is captured by the counterbore in the barrel and not able to become a free projectile (some, including Butch above, disagree with me on this but I agree to disagree).

In a cone bolt, there is no tight ring of steel to capture the extractor should be become free, thus the M16 style clearly provides more safety.

I'm thinking of making another 6br and I may make it a cone bolt just for fun.

--Jerry

Jerry, A good reason that I disagree. People on here that have shot BR for a few years know Pat Byrne. He is a Hall of Fame shooter, bow hunter without peer, and a daily hunter with bow or rifle on his ranch. Pat did have one come down the right raceway of his 700 rifle. Fortunately being RH it only peppered his face with debris and powder coming down the raceway. The Sako extractor went through the metal door frame behind him. If his girlfriend would have been the shooter, she would have had the Sako extractor enter her eye and on into her brain. Vicki is LH and shoots a lot. She uses Pat's rifles for hunting, but has her own LH BR rifle. Pat replaced the bolts in all of his rifles that had Sako extractors.
That is why I don't care for the Sako extractors in Remington bolt rifles. How many factory extractors have failed?

 

[Alex Wheeler]

I think if there was enough force behind that sako to send it through a piece of steel that the mini-16 would had been blown out as well. A friend had an over pressure in a 700 with a factory bolt. The ring swelled and part of it came apart going through his cheek. My opinion is blowing up rifles is un safe no matter what extractor. I mainly use mini16s because its what guys want. I dont have issue with the sako though. Bordens hook takes care of these issues but at least for now they wont be available to gunsmiths.