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No. 4 Mk 2 7.62

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MJ11 View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote MJ11 Quote  Post ReplyReply Direct Link To This Post Posted: April 23 2018 at 9:41am
Originally posted by Goosic Goosic wrote:

Why not get a .308 extractor claw and use that?


I believe he is talking about ejecting the fired case not extraction. But then I'm wrong most of the time.


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Post Options Post Options   Thanks (0) Thanks(0)   Quote britrifles Quote  Post ReplyReply Direct Link To This Post Posted: April 23 2018 at 10:25am
MJ, you are correct, extraction works just fine with the .303 bolt extractor. Reliable empty case ejection is the problem. I suspect the longer extractor claw enabled the case to be pushed far enough to the left side of the receiver to allow ejection. 
If you place a 7.62 cartridge on the head of the LE bolt with the rim engaged in the extractor, the case head does not extend out past the left side of the bolt head, and the ejector is as far left as it will go when the bolt is out of the action body.  
 
Where to I get one of those L42 magazines?  Or, a 7.62 extractor for that matter? 
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Post Options Post Options   Thanks (0) Thanks(0)   Quote britrifles Quote  Post ReplyReply Direct Link To This Post Posted: April 23 2018 at 10:31am
Originally posted by Shamu Shamu wrote:

Ok gotcha now. Does it eject when the base hits the ejector screw?
 
Shamu, not all the time.  That ejector screw is dang near flush, just barely protrudes from the action body.  If I pull the bolt back briskly, the empty usually just barely flips out, but running at a "normal" speed, the empty falls out of the bolt head and remains on top of the mag platform, or on top of the cartridges in the mag. Maybe the 7.62 extractor holds on to the case a bit better.
 
 
 
 
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Goosic Quote  Post ReplyReply Direct Link To This Post Posted: April 23 2018 at 11:34am
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Post Options Post Options   Thanks (0) Thanks(0)   Quote britrifles Quote  Post ReplyReply Direct Link To This Post Posted: April 23 2018 at 11:41am
Well, I gotta get me one of those! 
 
Thanks Goosic.
 
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Post Options Post Options   Thanks (0) Thanks(0)   Quote britrifles Quote  Post ReplyReply Direct Link To This Post Posted: April 23 2018 at 11:52am
Since the Ishapore No. 2A is based off the Mk III rifle, would this extractor fit onto a No. 4 bold head?
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Shamu Quote  Post ReplyReply Direct Link To This Post Posted: April 23 2018 at 2:24pm
I'm not sure, the Brit No1 MkIII & No4 Mk 1 aren't interchangeable though so I'd guess not.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote maxwell smart Quote  Post ReplyReply Direct Link To This Post Posted: April 23 2018 at 4:12pm
Originally posted by Goosic Goosic wrote:



This extractor, as pictured, is for the Ishapore 7.62.  It is not correct for the No 4 7.62.

Having said that, extractors from Numrich can be a bit of a lucky dip. I have in the past ordered 2A1 extractors, and have been sent No 4 shaped ones.


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Post Options Post Options   Thanks (0) Thanks(0)   Quote maxwell smart Quote  Post ReplyReply Direct Link To This Post Posted: April 23 2018 at 4:18pm
Originally posted by britrifles britrifles wrote:

Since the Ishapore No. 2A is based off the Mk III rifle, would this extractor fit onto a No. 4 bold head?

The photo shows the 2A1 type.  It is not right for the No 4.

Numrich do sell a 7.62 No 4 type extractor, but they do not seem to recognize what it is, and sell it as being for the 2A1. 

Brian from BDL used to stock the 7.62 extractors too.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote maxwell smart Quote  Post ReplyReply Direct Link To This Post Posted: April 23 2018 at 4:39pm
Photo from Worthpoint shows shape of No 4 7.62 extractor.  Perhaps if you were to email Numrich with the photo and tell them you want one this shape.





The head of the claw is bigger than on a 303 extractor; the chamfered top corner is to give clearance for the charger when loading the magazine in the rifle.

Enfield 7.62 magazines can be hard to find. I got most of mine out of the UK, including one off ebay. 
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Goosic Quote  Post ReplyReply Direct Link To This Post Posted: April 23 2018 at 4:52pm
This is one thing I am certain about. The 2A1 extractor will fit in a No4 bolt head. I have done three conversions to .308. It will work.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote MJ11 Quote  Post ReplyReply Direct Link To This Post Posted: April 23 2018 at 5:02pm
I think we are all overlooking the real problem of there is noting to kick the fired round out of the bolt head. On my L42 magazines the ejector is a welded tab on the magazine itself. At the moment I'm not near my photo files or parts bins to provide an accurate picture of the magazine or the extractor. I have several extractors original L42 and #4 cut to 7.62X51 spec.


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Post Options Post Options   Thanks (0) Thanks(0)   Quote maxwell smart Quote  Post ReplyReply Direct Link To This Post Posted: April 23 2018 at 5:43pm


Photo shows modification I did to Ishapore 2A1 magazine to help with ejection. I made a small cut in the left hand rear magazine lip, and bent the resulting face behind the cut up a little, such that the empty case can strike it. 
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Post Options Post Options   Thanks (0) Thanks(0)   Quote maxwell smart Quote  Post ReplyReply Direct Link To This Post Posted: April 23 2018 at 6:25pm
Originally posted by Goosic Goosic wrote:

This is one thing I am certain about. The 2A1 extractor will fit in a No4 bolt head. I have done three conversions to .308. It will work.


Did these extractors have the chamfered edge, or the standard square one? 
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