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Posted: 1/3/2016 12:49:46 AM EDT
Archived Original thread
Built the axle out of spare donut tires, miata hubs n spindles turned on a lathe to fit inside the tube. Cut the ratcheting portion of a damaged tripod front leg and welded it all together. I did it this way so if I hated it, the tripod can be returned to original. Next up is to make the faux armor shield. |
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jestertoo, that's a good looking DD. Looks like a surplus M61 barrel. I see them now and then on auction sites. View Quote View All Quotes View All Quotes Quoted:
jestertoo, that's a good looking DD. Quoted:
where did you get the barrel? Looks like a surplus M61 barrel. I see them now and then on auction sites. A fellow in Tennessee that goes by the name shady grady on GunBroker has new in tube M61 barrels at $1200 each. Also, CDVS.US.com has M61 barrels in various grades. Another source for 20mm barrels is Pac-Nor Barreling in Oregon. They make 20mm barrel blanks up to 45" long; see their website for details (www.pac-nor.com). |
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Could you PM me the info on the guy who built your breech block? I would love to get a 75mm or 105mm sliding breech block made for a bag gun.
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just my opinion but i would extend the armor over top of the wheels, its a very narrow wheel well so it looks funny and would offer very minimal protection in the current setup.
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just my opinion but i would extend the armor over top of the wheels, its a very narrow wheel well so it looks funny and would offer very minimal protection in the current setup. View Quote I was thinking about that and will mock it up. It's aluminum plate, so it will provide minimal protection anyway :) |
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<a href="http://s1054.photobucket.com/user/jestertooo/media/Mobile%20Uploads/IMG_20160107_180708_zpstxiq0wno.jpg.html" target="_blank">http://i1054.photobucket.com/albums/s484/jestertooo/Mobile%20Uploads/IMG_20160107_180708_zpstxiq0wno.jpg</a> View Quote That looks a lot better. If you just want it for looks and to shield from the blast of the muzzle aluminum will work fine. If you want real ballistic protection there are a lot of companies that can make you custom AR500 steel panels which will get you lvl 3 rifle protection. |
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Great thread. I can hardly wait for Part 4.(that's the I fired it today thread I hope)
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Dude, you need to put some Blizzacks on those rims... :)
Really nice project. Now I know I need a longer shooting range. GROG |
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Bump to keep out of archives.
Barrel is at shop getting more threads for a nut to keep the barrel from sliding. |
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Barrel threaded for a nut to keep it from sliding. <a href="http://s1054.photobucket.com/user/jestertooo/media/Mobile%20Uploads/IMG_20160514_142923_zpsjdpbxtpa.jpg.html" target="_blank">http://i1054.photobucket.com/albums/s484/jestertooo/Mobile%20Uploads/IMG_20160514_142923_zpsjdpbxtpa.jpg</a> <a href="http://s1054.photobucket.com/user/jestertooo/media/Mobile%20Uploads/IMG_20160514_142929_zpskrm9jko0.jpg.html" target="_blank">http://i1054.photobucket.com/albums/s484/jestertooo/Mobile%20Uploads/IMG_20160514_142929_zpskrm9jko0.jpg</a> View Quote Is the new nut the only recoil lug for the barrel? |
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Is the new nut the only recoil lug for the barrel? View Quote View All Quotes View All Quotes Quoted:
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Barrel threaded for a nut to keep it from sliding. <a href="http://s1054.photobucket.com/user/jestertooo/media/Mobile%20Uploads/IMG_20160514_142923_zpsjdpbxtpa.jpg.html" target="_blank">http://i1054.photobucket.com/albums/s484/jestertooo/Mobile%20Uploads/IMG_20160514_142923_zpsjdpbxtpa.jpg</a> <a href="http://s1054.photobucket.com/user/jestertooo/media/Mobile%20Uploads/IMG_20160514_142929_zpskrm9jko0.jpg.html" target="_blank">http://i1054.photobucket.com/albums/s484/jestertooo/Mobile%20Uploads/IMG_20160514_142929_zpskrm9jko0.jpg</a> Is the new nut the only recoil lug for the barrel? Along with the three clamps, it would appear so. Safe enough for a field piece. |
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Along with the three clamps, it would appear so. Safe enough for a field piece. View Quote View All Quotes View All Quotes Quoted:
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Barrel threaded for a nut to keep it from sliding. <a href="http://s1054.photobucket.com/user/jestertooo/media/Mobile%20Uploads/IMG_20160514_142923_zpsjdpbxtpa.jpg.html" target="_blank">http://i1054.photobucket.com/albums/s484/jestertooo/Mobile%20Uploads/IMG_20160514_142923_zpsjdpbxtpa.jpg</a> <a href="http://s1054.photobucket.com/user/jestertooo/media/Mobile%20Uploads/IMG_20160514_142929_zpskrm9jko0.jpg.html" target="_blank">http://i1054.photobucket.com/albums/s484/jestertooo/Mobile%20Uploads/IMG_20160514_142929_zpskrm9jko0.jpg</a> Is the new nut the only recoil lug for the barrel? Along with the three clamps, it would appear so. Safe enough for a field piece. Previously it was just the 3 clamps. I planned to use a pin located in the gas port on the barrel, but then decided to use the nut instead. With just the three clamps, it held for about 50 rds, but then slid ever so slightly. This was probably due to me not torquing the clamps down enough after a change. Anyway, the nut will be more than enough. |
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Previously it was just the 3 clamps. I planned to use a pin located in the gas port on the barrel, but then decided to use the nut instead. With just the three clamps, it held for about 50 rds, but then slid ever so slightly. This was probably due to me not torquing the clamps down enough after a change. Anyway, the nut will be more than enough. View Quote View All Quotes View All Quotes Quoted:
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Barrel threaded for a nut to keep it from sliding. <a href="http://s1054.photobucket.com/user/jestertooo/media/Mobile%20Uploads/IMG_20160514_142923_zpsjdpbxtpa.jpg.html" target="_blank">http://i1054.photobucket.com/albums/s484/jestertooo/Mobile%20Uploads/IMG_20160514_142923_zpsjdpbxtpa.jpg</a> <a href="http://s1054.photobucket.com/user/jestertooo/media/Mobile%20Uploads/IMG_20160514_142929_zpskrm9jko0.jpg.html" target="_blank">http://i1054.photobucket.com/albums/s484/jestertooo/Mobile%20Uploads/IMG_20160514_142929_zpskrm9jko0.jpg</a> Is the new nut the only recoil lug for the barrel? Along with the three clamps, it would appear so. Safe enough for a field piece. Previously it was just the 3 clamps. I planned to use a pin located in the gas port on the barrel, but then decided to use the nut instead. With just the three clamps, it held for about 50 rds, but then slid ever so slightly. This was probably due to me not torquing the clamps down enough after a change. Anyway, the nut will be more than enough. It would likely be a different story with a static gun, but with the way you have things set up it's a total non-issue. Simple, clean, clever solution. |
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It would likely be a different story with a static gun, but with the way you have things set up it's a total non-issue. Simple, clean, clever solution. View Quote View All Quotes View All Quotes Quoted:
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Barrel threaded for a nut to keep it from sliding. <a href="http://s1054.photobucket.com/user/jestertooo/media/Mobile%20Uploads/IMG_20160514_142923_zpsjdpbxtpa.jpg.html" target="_blank">http://i1054.photobucket.com/albums/s484/jestertooo/Mobile%20Uploads/IMG_20160514_142923_zpsjdpbxtpa.jpg</a> <a href="http://s1054.photobucket.com/user/jestertooo/media/Mobile%20Uploads/IMG_20160514_142929_zpskrm9jko0.jpg.html" target="_blank">http://i1054.photobucket.com/albums/s484/jestertooo/Mobile%20Uploads/IMG_20160514_142929_zpskrm9jko0.jpg</a> Is the new nut the only recoil lug for the barrel? Along with the three clamps, it would appear so. Safe enough for a field piece. Previously it was just the 3 clamps. I planned to use a pin located in the gas port on the barrel, but then decided to use the nut instead. With just the three clamps, it held for about 50 rds, but then slid ever so slightly. This was probably due to me not torquing the clamps down enough after a change. Anyway, the nut will be more than enough. It would likely be a different story with a static gun, but with the way you have things set up it's a total non-issue. Simple, clean, clever solution. Static = no recoil system? Between the recoil system and the muzzle brake, it's fairly soft shooting gun. Whole thing weighs 100lbs or so and jumps up off the ground pretty good ;) |
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Have you shot anything cool with this yet?
A barrel of water? Thick steel plate? |
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Static = no recoil system? Between the recoil system and the muzzle brake, it's fairly soft shooting gun. Whole thing weighs 100lbs or so and jumps up off the ground pretty good ;) View Quote Yes, exactly. With the setup you have, a simple nut like that butted against one of the clamps is sufficient to prevent sliding in the clamps themselves. You've got a nice, simple setup. |
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Any updates to this? I have been really wanting to see the final outcome.
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I need to work on it. Haven't touched it since last Sept. Need a long eye relief scope and some Al plate.
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