AR Sponsor
Posted: 4/24/2007 5:19:00 AM EDT
| Is there a .22 magnum converson for the AR platform? |
| If I recall correctly the bullets are the same diameter. I think that a 22 mag conversion would be neat. With everyone moving to the country, there would be less of a concern about a back stop when shooting varmits. In some areas the 223 just travels way to far for confort. |
I thought about about the same thing and tried to make a 22 magnum conversion using the good old M261 unit. When I tried it in a 1/7 twist barrel the copper jacket would get torn off -- a little less of a problem in a 1/9 but still had problems with the jacket. I then tried it in a KKF dedicated 22lr upper with the standard 22lr twist of 1/16 and it worked fine and was accurate and no jacket problems. Now this modified unit is made up of old M261 junk parts that I had left over from other projects so it is ugly but it works. I've used a bunch of different 22 magnum ammo types in it but I found the cheapest with good accuracy was the Winchester dynapoint 22 magnum ammo.  The M261 unit is very modified and works with a special buffer and spring. This unit has 500 to 600 rounds through it at this time. I use the same magazines that I have for a 17 HMR project -- the one in the picture is a range magazine and only holds 7 rounds.  I don't have a picture of it with 22 magnum ammo in it, only 17 HMR. I have a 1/12 twist upper that I was going to try the setup in but it worked so well in the KKF 22lr barrel that I never got around to it. There is gas leak with this type of setup but 22lr setups have that also. I can't say there is any value to this type of setup other than it was a fun project. |
Hats off to you! That must have been challenging to say the least. |
AR Sponsor