Aaron in Mohnton Pa

.223 M60 Parts - A closer look

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Posted (edited)

 

   Many do not know it, but long long ago you could buy .223 Conversion kits for M60s. The kits consisted of the following:

- Feed Tray

-Barrel

-Bolt

-Top Cover

  The parts are very easy to install. All of the conversion parts were made from original M60 Parts.... They just had to be modified. The conversion kits were made by John Weaver "JRW", who sadly passed away a long time ago now. Parts are almost non existent. I was going to put these parts into production years ago but found that some of the parts, such as the barrel collar, would be very very costly for me to have made. I passed the project on and haven't heard about it since. I regret it now....

   I did manage to pick up a .223 feed tray. Some pictures below. I will be having the blocks and feed pawls produced...so that's a start... Al;so pictured below is a early M60e4 Ammo Hanger, which SAW pouches attach to. Which is what would hold the ammo load for the .223 M60.

   Anyway ... Just sharing with the board.. I am trying to acquire the other .223 parts so I can get this project up and running and into production.

Aaron - Mohnton, Pa

.223 FEED TRAY - The long piece coming off the front goes into the trunion and guides the round into the chamber.

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Here is a video of a .223 M60 Running

 

Edited by Aaron in Mohnton Pa

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My checkbook is standing by for when you start selling them.

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Posted (edited)

Aaron, what happened with the more recent company that was supposed to make these?

Edited by Waffen Und Bier

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@Waffen Und Bier ,

    They were suppose to put these into production and I was supposed to become a distributor of them. From what I heard the kit went on a shelf and to date no action has been taken with it. Unfortunately. That was in 2015 that they acquired it and still nothing. I'm not optimistic that they will go into production.

- Aaron

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Posted (edited)

Bummer. One of our customers keeps threatening to come by the shop with some JRW pieces.   Still holding my breath. I'm busy with Stoner related stuff, so no hurry, I suppose. 

Edited by Waffen Und Bier

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Will do.  Could the barrel extension for the 7.62 M60 be used for the 5.56mm? I haven't looked or experimented yet.  

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Posted (edited)

@Waffen Und Bier , Yes the barrel collar (pictured below) threads onto the newly made barrel. The small tooth on front of the feed tray guides the round into the chamber. I have heard John Weaver made his barrels out of Remington 700 barrels.

   The problem is finding these barrel collars and gas cylinders. They are near impossible to find the e3 ones. I do not know if standard gas cylinders will work. The barrels are machined into the shape of an e3 barrel. Barrel collar torqued on and barrel latch notch cut in. Then everything is installed and lined up based on the barrel latch cut. To ensure gas system is straight and front sight post is straight.

-Aaron

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Edited by Aaron in Mohnton Pa

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Aaron, I think a lot of ANYTHING that will add to the limited choice's we have to look forward to in todays market place and its a fantastic thought. I had heard there were running issues that was a big factor with it moving forward.  I would think the pressure curve of the round and the 60K + actual chamber pressure is a big culprit with the design. Has anybody attempted a Russian short conversion?   mike todd


I only accept postal money orders. contact me DIRECTLY before sending any funds                                           email  myoldiron@outlook.com        

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Now you're talking about something interesting, a 7.62X39 - M60 running RPD links!

Linked .223 is a PIA to clean up after, and I already have a Shrike. Sure hope someone can figure this out.

Thanks for the Boards! BP

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@mike todd Mike,

   Yes, JRW's initial design had its issued. He was working on the project with Eric Grimes. After John Passed Eric continued to work on the project. He was able to get the gas port size adjusted correctly so that the weapon ran consistently.

    I don't believe anyone has attempted a 7.62x39 conversion but that would be neat. Since I made this post, I have been talking back and forth with Michael Dresner at Law Enforcement Sales in TN. If anyone is capable of completing a x39 design it is him. That round may actually feed better than the .223 round.

 

Aaron

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Aaren, lets hope someone takes the bait and gives it a shot. I enjoy my 60 more than I can relate but not so much with full power ammo. I managed to get 3 extra guns in a agency order back in early 80 and we ordered a full 28ft pup of that EARLY west German .308 . it was on the low side and the guns just purred with it. what little I have left I cant bring myself to shoot, so an option would be very welcome.  we have the rifling machine at the ready so brls would not be any problem. if only my hands would allow me to run the mill ,or steady the TIG torch, I would be on it now instead of this keyboard. the biggest hurdle is anyone with the ability has no time because of all the demand for quality work. so it will require quite a sacrifice for anyone to get into. lets light the fuse and get something going! 


I only accept postal money orders. contact me DIRECTLY before sending any funds                                           email  myoldiron@outlook.com        

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Aaron, next time you talk to Michael Dresner, tell him if he gets a bit going , we can produce a barrel, and provide it for the project but would need help with the collar. if we could get our hands on some from demil brls , we should be able to do something with them.  other than a few target brls all we are doing right now is trying to produce a Breda 30 brl in Russian short for our AK mag conversion.

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I only accept postal money orders. contact me DIRECTLY before sending any funds                                           email  myoldiron@outlook.com        

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@mike todd, thanks man! That’s great to hear. I can get gas cylinders for sure. I was thinking the same thing as far as getting collars off demilled barrels. 

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Posted (edited)

No sign of the M60 parts yet.

Did John/Eric change the gas system much? According to Cadilac Gage's Interim Report on the Stoner system, they "had little success in developing a straight expansion cut-off system similar to that used in the M60 machine gun." The M60 bolt, op rod, piston and recoil spring would seem like a lot to overcome by the 5.56mm.  

I was thinking 7.62x39 for the M60 and MG42 as well. 

Edited by Waffen Und Bier

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If you are looking for investors in the project, count me in. What about the 6.5 Creedmoor? I bet the Military would give a second look at the M60 in that chambering. Interesting that I recall the Brits were looking at a .260 when we were testing the .223.

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The .308/7.62x51 is the parent case for the 6.5 Creedmoor. Price is not as affordable as the .308. Really the MAIN thing on a conversion to 6.5 would be the barrel. The m60 links, feedtray, top cover, bolt etc would all work. Other than working out the round feeding into the chamber.
.

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@Waffen Und Bier,

    After John Weaver died Eric Grimes continued working on the project. John had not finalized a working design as his original design had issues running. The modifications that Eric made to get it running properly was:

- Bending the feed cam a few degrees

- Adjusting the gas port size

   When I last spoke with Eric years ago, the biggest issue he was having was the gas port size and the feeding issues. I still do not know what his finial gas port size was. But his final adjustments got it running perfectly consistent. 

   @BDMERC, Thank you for that offer!! Funding is there and I can get that done, its getting my hands back on the final design so I can reverse engineer it. I believe, especially with all the people interested in this with manufacturing capabilities like @mike todd, that it can be done. I think Rental ranges would like something like this as well to keep ammo costs down.

 

Aaron

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@SVA,

   Good info! I will certainly look into that round. figuring out how to get round in chamber would be pretty easy.

 

Aaron

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its getting my hands back on the final design

 

Do you know who currently has it? If you do and he knows it has value it seems like he would be willing to attach a price to it and sell it, given he apparently has not (or does not plan) to do anything with it. 

 

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@BDMERC,

  I believe the same person still has it. I will inquire this week. He knows its a unicorn so he likely wont sell it but I may possibly be able to borrow some components to replicate.

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