Hello,
I recently bought a Winchester Model 70 300 Win Mag with the pre 64 action. I have been having a problem with getting the bolt to close and lock down when feeding a loose round into the chamber.
When I load the rounds into the magazine, the action works perfectly. It locks down and fires without a hitch. However, when shooting at the range and just laying a round on top of the magazine, the bolt will not completely lock down. I can tell what is happening is the extractor will not pop over the rim of the cartridge. It is like the area of the chamber that the extractor travels in is too tight to let the extractor flex outward enough to catch the cartridge rim. I can see evidence of wear on the outside tip of the extractor where it is contacting the wall of the receiver.
I put the bolt out of my other Model 70 in the rifle to see if the 300's bolt was the problem or if it was in the receiver. Well, the bolt out of my other 70 did the exact same thing. So, obviously, the issue lies in the tolerances of my receiver.
So, what now? Can this be fixed? Can I remove some of the thickness of the extractor where it is showing wear? Or will a gunsmith need to work on the inside of the receiver?
As noted, when feeding from the magazine, it operates fine. But if I feed a loose round, it will not close. This results in the round sticking in the chamber and having to be rodded out from the muzzle. Not good for a hunting rifle.
Thanks in advance for any help
I recently bought a Winchester Model 70 300 Win Mag with the pre 64 action. I have been having a problem with getting the bolt to close and lock down when feeding a loose round into the chamber.
When I load the rounds into the magazine, the action works perfectly. It locks down and fires without a hitch. However, when shooting at the range and just laying a round on top of the magazine, the bolt will not completely lock down. I can tell what is happening is the extractor will not pop over the rim of the cartridge. It is like the area of the chamber that the extractor travels in is too tight to let the extractor flex outward enough to catch the cartridge rim. I can see evidence of wear on the outside tip of the extractor where it is contacting the wall of the receiver.
I put the bolt out of my other Model 70 in the rifle to see if the 300's bolt was the problem or if it was in the receiver. Well, the bolt out of my other 70 did the exact same thing. So, obviously, the issue lies in the tolerances of my receiver.
So, what now? Can this be fixed? Can I remove some of the thickness of the extractor where it is showing wear? Or will a gunsmith need to work on the inside of the receiver?
As noted, when feeding from the magazine, it operates fine. But if I feed a loose round, it will not close. This results in the round sticking in the chamber and having to be rodded out from the muzzle. Not good for a hunting rifle.
Thanks in advance for any help
