In the picture of the rounds in the magazine -- the bullet on the left looks like the ones that were designed for the 22 TCM -- is that what it is? How do they shoot compared to the other bullet? The other bullet looks like a Barnes Varmint Grenade or a Dog Town bullet -- what is it?
The cartridge case on the right (in the magazine) looks really nicely formed -- was that a case that was already fire formed and then run through the FL sizing die again?
Last Edit: Jun 10, 2015 15:11:51 GMT -5 by 22boomer
Wow, someone is paying attention TCM 40gr is formed only. Thats what we were plinking at 200 yds No real paperwork yet.... The case in the mag is the 30gr varmint grenade and is the rev1 short 22 RE case. New cases blow the shoulder out .010" so we can't chamber a RE
Got another 1000 cases coming and going to split them up between the 30 and the 22. What.... I didn't mention the 30.... Ordered a couple more mag adapters also from Pro Mag for $50, the AMM Arms for $90 to test with the PSA one I got last week for $90. I sell mine for $150 and don't make anything on them. Contacted an extruder for base stock and they take orders for a million $ or more! I asked them how many feet of extrusions that was... For $90 its not worth my time to make an adapter and insane to try for $50. Have 300+ cases to fire form and take it from there.
Working on fire forming the last of the first batch of 22 UZ brass. Running out of time at the shop so trying to fit everything in. Got the samples of blow back adapters in will put them to the test and will report back with some pics. I've got the PSA adpater in the G4 piston gun and I have to tell you the bolt hold open feature is really nice.
Been shooting up all my "fire form" stuff and hopefully will start reloading this weekend. Need to run some ballistics as I managed to shoot my chronograph a few weeks ago, what a maroon.... Anyway, it actually groups at 100 yds with my old red dot and function has been great with the fire form load. Will try and post more later.
Have been reloading for the 22 U Z using Herco, 4227, H110. Results have been good and will do more chrono work when the new unit shows up. Havent had a lot of time, but the round is operating fantastic in blow back mode. Working on getting next 1000 brass formed up and fire firmed. Reamer in process and will get die sets asap.
Tim, I know you're busy but I was wondering if there were any updates on the 22 Uzi? I would like to know if you had done any testing with a 16" barrel That could be a direct replacement for the 9mm carbine barrel on most setups. Who do you plan on using to make the dies?
By the way, have you tried making a barrel for a 9mm pistol chambered in the 22 Uzi? It can't be all that much less powerful than the 22TCM and there would be no need to buy a whole pistol -- just a conversion barrel and maybe a stiffer spring.
Hey 22, All testing has been with th 8" AR pistol. I have not done a 16" yet, was waiting for the new reamers. Yes i am doing (attempting) a glock pistol barrel. Its been sitting on the mill since i left, snd heading back next week to finish. New chrono got here yesterday so will do vel testing this weekend. Also got 6 different bullets to try ranging from 30gr - 45gr. Did measurements last night and things look promising. New reamers are in the works for chamber and loading dies. Once all testing is done, we'll work with the std mfg on die sets. Lee, Hornady, and CH4D, all offer the service. Once reamers get here we will offer both 30 cal and 22 cal brass, hopefully dies, barrels, and uppers.
Tim, Are you having a 22 Uzi reamer made that will allow for not having to turn the necks? Forming the brass down to 22 caliber is not a problem but having to turn the necks can be a pain. Sure would love to see a nice 16" carbine doing a mag dump with the Uzi rounds.
Right now we are running stock brass that has not been turned or reamed. The new reamers will be the same and we will make sure the production sets will not require it. Loaded rounds last night and will post pics as soon as i upload. 4 out of the 6 new bullets worked like a charm. Two of the new ones were a bit too long. Had a monsoon last night so heading to range this morning for chrono testing.
I would like to see some more tests with maybe the 16" carbine type barrel. I like smaller cartridges due to using less powder and the Dog Town bullets are good because they can be had in bulk. Did the Dog Town bullets work ok? I also have some Varmageddon bullets which I believe are the same as the Dog Town, just Sierra's brand name instead of Midway's. The 22 Reed Express is good but the problem with them in an AR is the Magazine -- need CZ-24 mags for modified 7.62X25 brass but I can get away with PPS-43 mags if I use reformed .223 brass. I would readly like to try the 22 Uzi with Uzi mags in my blowback carbine. Is there any reason my Metalform 9mm mags would not also work?
Tested loads with multiple powders talked about in previous posts. I guess in my vast inexperience, I thought the highest charge of powder would result in the lowest variation. A .1 change in 3.0gr of bullseye is a higher percent than a .1 change in 9.5gr of 4227. Plus, I wanted to safely fill the case to find a "factory load" that you couldn't overcharge. That's how we got to 9.5gr of 4227........ Here is the 33gr Speer HP
Its a short stubby bullet and allows max case filling and we had more room to go with capacity and pressure. One problem, as I found with most loads, extreme spread was 121 fps! So much for my theory. The 3 gr of bullseye load? 11 fps spread!!!! We'll definitely go back and test faster powders.