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one of us |
Saw this mentioned in an ad for the new WSSM's..what is it? | ||
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one of us |
I haven't seen one but in pics they look like push feeds with a Mauser extractor. | |||
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one of us |
DB Bill, The "controlled, push-feed" action is basically a push feed bolt with the bottom of the bolt face opened up to allow the cartridge to feed up under the extractor as you feed the round out of the magazine rather than pushing it in front of the bolt into the chamber and then the extractor snaps over the cartridge as the bolt is locked. headache | |||
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one of us |
quote:From the Winchester website: quote:Having seen the new Winchesters with this type of bolt, and watched rounds load from the magazine, I can assure you the bolt face controls the cartridge from magazine exit to chambering. The bottom of the bolt face is milled off and the cartridge rim comes straight up into the grip of the extractor mounted on the right lug as it leaves the magazine. The extractor does not snap over the cartridge rim after the round is chambered. | |||
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one of us |
Is this similar to the Anchutz model 54? (I think that is the model), I grabbed an old issue of rifleman last night to flip through and saw a picture of it. The bottom was milled off of the bolt face so the the .22 shell could slip up under 2 claw extractors, one on each side. Interesting design. Red | |||
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<allen day> |
I had the chance examine one of these controlled, push-feed Model 70s at my favorite local country gunstore and we took it out back to test function, etc. We didn't shoot it. I can tell you that while the the action fed and functioned just fine, the workmanship and quality was not what I'd put my money into, and it was a big step down from those Classic CF actions built before the move to South Carolina. AD | ||
one of us |
I'm still wondering how many Winchester rifles are in the market made in SC. Every single new Winchester Model 70 I've seen still says "made in New Haven, CT" on the barrel. Also, the "new facility in South Carolina" is none other than FN Manufacturing Inc's factory in Columbia. That's where the FN FortyNine pistol, the M-16, the M-249, the M-240, the FN P90, the FN FiveseveN, and the FN SPR rifles are all made. Hardly a chop shop. | |||
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one of us |
quote:Yep. Only the Winchester has one extractor on the right bolt lug. Savage has used a similar design for several years on its DGR. This is a picture of the bolt head of the Savage Safari Classic rifle. The Winchester Controlled Feed Push Feed bolt is nearly identical. | |||
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one of us |
I can't speak for the quality as I don't own one yet. The design however is quite good. Imagine a post 64 M. 70 without the plunger ejector and with the bottom of the bolt face milled away. The ejector is a fixed blade like a classic 70 and the extractor is pure post 64. It IS a true controlled feed. The other nice feature about this setup is the fact that rebarreling is a lot simpler without the cone breech or the extractor cut to make ala the M 70 classic. Gabe | |||
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<JBelk> |
I guessed wrong. It's a pure controlled round feed. As I said above, "If it has a fixed ejector and a slotted bolt face it's a controlled feed action.....IF the cartridge slides up the bolt face BEHIND the extractor when it feeds." So, it is a CRF action. Now the question is: Why would the ad writer muddy the water by calling it a push feed? It's as much controll round feed as a 1911......and not all that different. | ||
One of Us |
The other nice feature about this setup is the fact that rebarreling is a lot simpler without the cone breech or the extractor cut to make ala the M 70 classic. Plus actions can be set up so barrels can be changed between actions. I like CRF because you can run cartridges through the magazine and not have to close the bolt. I like CRF because you can push the bolt forward and only need to turn the bolt handle down to fire, but if you change your mind you don't need to close the bolt to extract the cartridge. But if you also like M70s and want to be able to move barrels between actions then the Mauser type CRF prevents that. One advantage this action retains is the "twisting" force as the bolt is opened since the extractor still rotates with the bolt. What are the disadvantages as compared to the normal CRF extractor? Are there any? Mike | |||
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one of us |
Though I haven't measured, it must have slightly less purchase on the rim verses the classic action. Splitting hairs. Otherwise only advantages. Now if only Winchester could build it with consistent quality control. Gabe | |||
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<JBelk> |
Mike375 ask-- quote:It takes more force to extract when the extractor is moving with the bolt. You have to add the frictional forces of the extractor against the rim to the bolt lift equation. The probability of shaving brass from the rim is increased greatly. I agree with the advantages of CRF. | ||
one of us |
I don' think you will be able to detect much difference in bolt lift......the push feed Winchesters with the same extractor are usually very smooth . The old long extractor would be much stronger , in my view . What I wonder is what this modification has done to the gas handling characteristics of the action . It seems to me , if you take an enclosed-cartidge head push feed , and lop off the bottom of the bolt head , you have changed the possible flow of gas drastically.........likely not for the better ?? | |||
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