7.62 Nato conversion... Difficult? |
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Dazed and Confused
Groupie Joined: January 16 2015 Location: nnnnn Status: Offline Points: 28 |
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Posted: January 24 2015 at 10:18pm |
I've heard of No4 and No5 conversions to 7.62 NATO... What's involved? Difficulty, expense? Anyone here done it?
Inquiring minds want to know (or just dimwits like me...) ;)
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paddyofurniture
Senior Member Joined: December 26 2011 Location: NC Status: Online Points: 5255 |
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New barrel, magazine, bolt face, for starters.
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Always looking for military manuals, Dodge M37 items,books on Berlin Germany, old atlases ( before 1946) , military maps of Scotland. English and Canadian gun parts.
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SW28fan
Special Member Donating Member Joined: July 02 2007 Location: Texas Status: Offline Points: 2951 |
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There at one time were kits to convert No4s to 7.62 Nato rifle of various configurations but these dried up a long time ago the occasional odd bit appears on ebay. There is a Franken rifle that some importers made out of Ishapore 2As that have a shorter barrel and a No5 Flash hider/bayonet lug fitted to.
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Tony
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As Paddy says plus the actions aren't proofed for comercial ammo. There have been instances over here where the reciever has cracked due to overpressure. The brit NRA insists on the existing weapons being reproofed before they are used on Bisley Ranges and the loads are reduced to a safe maximum.
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Rottie (PitBulls dad.)
“If electricity comes from electrons, does morality come from morons Born free taxed to death!!! |
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A square 10
Special Member Donating Member Joined: December 12 2006 Location: MN , USA Status: Offline Points: 14452 |
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they are making new made rifles in this - somebody here will tell you who and ahere as i cannot recall off hand ,
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maxwell smart
Senior Member Joined: January 23 2009 Status: Offline Points: 236 |
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Difficult, no not really, once you have the parts :) Expensive - well, yes it can be. The only hardware I needed to get mine converted was a new barrel, magazine, extractor, and a charger guide adapter insert to suit the 7.62 chargers. Used the existing .303 bolthead without modification. Requirements for testing/reproofing will depend upon your local laws. Some people will say that it is necessary to get machining work done on the action to make the magazine feed properly; I have been lucky that this has not been necessary on any of my rifles (all are Long Branch or Savage actions)
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Dazed and Confused
Groupie Joined: January 16 2015 Location: nnnnn Status: Offline Points: 28 |
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A2,
You're thinking of the AIA M10 series... They are interesting but not what I'm looking for... An actual conversion of a real No4. Max, Yes, what you posted is what I remember reading. It isn't that hard with the right parts. Did you do the work yourself or have a gunsmith do it? (You do own a silver hammer don't you? :^) No reproofing required that I am aware of here in the US as well on my private range... ;~) |
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White Rhino
Special Member Donating Member Joined: May 05 2006 Location: United States Status: Offline Points: 5118 |
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Well , I have an Odd Reciever out in the shop ...would have to see if its a No1 or and No4 ...cant remember from when I boxed it up last !!!
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"White Rhino"
"Everybody's got to believe in something. I believe I'll have another beer." --W. C. Fields |
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Ettiene
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Can you convert the mk4 no2 to 308 using the existing standard action?
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Shamu
Admin Group Logo Designer / Donating Member Joined: April 25 2007 Location: MD, USA. Status: Offline Points: 17603 |
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With one or two minor changes yes.
Bolt head, ejector screw & magazine. |
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Don't shoot till you see the whites of their thighs. (Unofficial motto of the Royal Air Force)
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Ettiene
Groupie Joined: October 21 2014 Location: South Africa Status: Offline Points: 48 |
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why do people say that the mk4 bolt is to weak for 308 pressure.
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maxwell smart
Senior Member Joined: January 23 2009 Status: Offline Points: 236 |
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Why do you need to change the bolt head? Only really need to change the extractor; can even use a 303 extractor with suitable modification.
Probably take the ejector screw right out.
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maxwell smart
Senior Member Joined: January 23 2009 Status: Offline Points: 236 |
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I got a gunsmith to do the work. Had the action checked and stamped by SAF Lithgow.
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Ettiene
Groupie Joined: October 21 2014 Location: South Africa Status: Offline Points: 48 |
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how do i post a pic of the bolthead?
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Tony
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THE BOLT AND ACTION WILL NOT STAND THE PRESSURE OF COMERCIAL GRADE 308 AMMUNITION. See my post above dated 25 January 2015 at 6:26pm |
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Rottie (PitBulls dad.)
“If electricity comes from electrons, does morality come from morons Born free taxed to death!!! |
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DairyFarmer
Senior Member Joined: July 19 2014 Location: In The South Status: Offline Points: 555 |
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Please people the 7.62x51mm (Nato) and .308 Winchester are NOT THE SAME CALIBRE.
To start with the case dimensions are different. 308/7.62 all in mm Bullet 7.82/7.82 Case length 51.18/51.05 (-0.13) Rim 11.94/11.94 Base 11.94/11.84 (-0.1) Shoulder 11.53/11.35 (-0.18) Neck 8.74/8.58 (-0.16) OAL 69.85/69.85 Secondly they are designed to work at different pressures. The 308 being a higher pressure. Hence the mistaken belief that military 7.62 ammo is safe to fire in a 308.
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