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WTB LeeEnfield No4 762x51 conversion parts / rifle

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Moosm14 View Drop Down
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    Posted: October 20 2020 at 12:23pm
WTB Lee Enfield 762x51 conversion from 303 parts or rifle
(Sterling, DCRA or other)
Excluding Ishapore unless already converted to No4
There is room for all of gods creatures ... right next to the mashed potatoes
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Goosic View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Goosic Quote  Post ReplyReply Direct Link To This Post Posted: October 20 2020 at 1:44pm
Originally posted by Moosm14 Moosm14 wrote:

WTB Lee Enfield 762x51 conversion from 303 parts or rifle
(Sterling, DCRA or other)
Excluding Ishapore unless already converted to No4
Welcome from Phoenix Arizona Moosm14. 
  Unless you have alot of patience, your best bet is going to be purchasing a 2A1 Ishapore barrel from Numrich and having it refaced to index properly onto a No4 reciever and then having the bolthead face resurfaced to correct headspacing.  Trying to find L42A1 magazines, DCRA .308 barrels, L39/42A1 7.62x51mm NATO barrels, and the original Sterling 7.62mm conversion kit is comparable to locating Rocking Horse turds. I have located the L42A1 magazines a few years ago and the buy it now price was 750.00 UK. There is a Sterling 7.62mm magazine for sale on ePay right now for 330.00 USD but, it's missing the follower and spring. The 7.62x51mm NATO barrels for the No4 Enfield that a few folk do have will not be parted with unless offered an exorbitant amount of monies.
I have so far, on three occasions converted a No4Mk1 to fire 7.62x51mm NATO using the 2A1 barrel and making the necessary changes and modifications to the firing pin protrusion, bolthead resizing, correcting headspace, and buying those two L42A1 magazines i mentioned. If you have any experience using a lathe, the conversion is fairly straightforward if using the Ishapore barrel. 
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Goosic Quote  Post ReplyReply Direct Link To This Post Posted: October 20 2020 at 2:07pm
These rifles were converted using 2A1 Ishapore barrels purchased from Numrich Gun Parts. They shoot exceptionally well. The top No4Mk1/2 Maltby actually shoots MOA.  The bottom No4Mk1/2 Maltby was setup to use Norma 308 Vulkan hunting bullets and shoots sub MOA out to 100 yards. Notice the L42A1 magazines top and bottom and the Sterling 7.62mm magazine in the No5Mk1.  The current online pricing for all three magazines are comparable to the same price as a new Ruger Gunsite Scout rifle.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Honkytonk Quote  Post ReplyReply Direct Link To This Post Posted: October 20 2020 at 3:42pm
Welcome from Brandon, Manitoba, Canada!
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Post Options Post Options   Thanks (0) Thanks(0)   Quote The Armourer Quote  Post ReplyReply Direct Link To This Post Posted: October 20 2020 at 3:44pm
Originally posted by Moosm14 Moosm14 wrote:

WTB Lee Enfield 762x51 conversion from 303 parts or rifle
(Sterling, DCRA or other)
Excluding Ishapore unless already converted to No4

You have hit a home run here - Goosic is your man for Conversions and Calibre changes.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Udalryk Quote  Post ReplyReply Direct Link To This Post Posted: August 26 2023 at 9:04pm
Sorry for replying to a old post. Was searching the web for info on the matter and im new here.

So the No4 Mk1/2 action can handle the 7.62x51 pressure? As i planned to take a old ishapore thats a gunsmith special and have the action replaced with a no4 mk1 or a no5 mk1.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Sapper740 Quote  Post ReplyReply Direct Link To This Post Posted: August 27 2023 at 4:28am
Welcome aboard from Texas!   If you have any doubts about the strength of No. 4 actions this video on You Tube made by 'Bloke on The Range" should allay any fears you have.

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Post Options Post Options   Thanks (0) Thanks(0)   Quote britrifles Quote  Post ReplyReply Direct Link To This Post Posted: August 27 2023 at 4:53am
Sort answer is yes.  

RSAF Enfield produced a conversion kit with a 7.62 barrel of the same external contour and length as the .303 barrel to convert No. 4 Mk I, Mk I*, Mk 2, Mk 1/2 and Mk 1/3 rifles to 7.62 NATO. It’s not known how many were converted.  Sterling also produced a conversion kit that was sold commercially. 

RSAF later produced a 4 lb heavy barrel that was longer than the No.4 standard barrel and assembled the L39 and L42 and commercial equivalents which had a shortened forend.  The L42 was a very successful sniper rifle used by the British Armed Forces into the 1980’s and was a conversion from the .303 No. 4 Mk I(T) and Mk I*(T) Sniper rifle. 

Long Branch also ran a conversion program for DCRA SR(b) competition shooting.  The barrel was of standard service weight and length but without bayonet lugs. The DCRA conversions retained the .303 extractor and magazine.  It’s also not known how many were done.  

All of these programs included proof firing each rifle to 7.62 NATO proof pressures.  



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Post Options Post Options   Thanks (0) Thanks(0)   Quote Goosic Quote  Post ReplyReply Direct Link To This Post Posted: August 27 2023 at 5:09am
Originally posted by Udalryk Udalryk wrote:

Sorry for replying to a old post. Was searching the web for info on the matter and im new here.

So the No4 Mk1/2 action can handle the 7.62x51 pressure? As i planned to take a old ishapore thats a gunsmith special and have the action replaced with a no4 mk1 or a no5 mk1.
The "Pressures" generated using a very mild 7.62 load and that means a handload with the minimum charge weight applied. There are a couple of folk that will tell you that, "it's okay to run some "hot" rounds through it every now and then" but why?
If you are going to attempt to screw a 2A1 barrel onto a No4Mk1 receiver just remember that you will have to reindex the barrel because it will be 180° off from where the extractor groove should be. If you have a complete and usable Ishapore 7.62 just use that. Too much time and money involved trying to do the conversion and in the end you still have a rifle that is "just" as accurate as the 303. I am not telling you to NOT do it,  I am saying that there is alot more to this than just a barrel swap...
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