Black Dog Machine .22 UZI Conversion Magazine - A First Look.

[jim c 351]

Blackdog mags range report

Yesterday I was at the range with my Group Uzi, Vector 22 kit, and Blackdog 22 Uzi mags.
I placed a bunch of clay targets on a hillside at 100 yards, set the Uzi at 200 yds and blasted away.
I had 3 new BD mags, preloaded with Rem Thunderbolt ammo, and they worked like a charm. No failures. Mostly 3-4 rnd bursts from the bench.
Then I reloaded mag number 3 and continued to wreak havoc untill I shot half the mag. Then a KABOOM. The case blew at the bottom. The receiver was smoking. I checked the mag. The front was cracked open for about 2 inches.The reinforcing tab was cracked. I finished the damaged mag without problems.
I then tried a Vector 28 rd mag. I noticed the empties were not ejecting very far and sometimes failed to clear the gun. I took the gun apart and examined the extractor. It was sprung open and did not grip a cartidge at all. I took a pair of pliers and squeezed the extractor shut.
Now things were back to normal and the empties flew 3-4 feet from gun.
Its not Blackdogs fault that the bolt does not sufficiently support the cartridge case head, but I fear this may be a re-occuring problem.
I could send the mag back to BD, but I don't think I will. It would probably just happen again with the replacement.
I think I'll try to make some sort of a steel support.
Jim C

 

[RoverDave]

Man, I wish BDM would just redesign their followers, so we don't have to file/sand the followers down. The BHO feature is a bad idea in practice. It probably sounded good in theory though.

I just received 2 of the BDM mags and they do not have the extended followers. I guess they heard the feedback and made changes. I won't have a chance to try the new mags until later this week.

 

[machinegunmarty]

I bought 10 mags from them I found that if you pre lube them with powderd grapite they seem to work better

I have not used the 22 kit much I was lucky to have bought a bunch of primers before the great primer deppression of 09 started that and I shoot alot of lead so it is fairly cheap to shoot I have been buying from CB bullets 61 a 1000 shipped 124gr RN

 

[montana_jeepn]

Just ordered 10 of these when BDM was having a 25% off sale.

Can't wait! 300rds of .22 without reloading!

 

[tonytdmd]

Don't use Remington in open bolt 22's. You may get lucky for a while , but you WILL blow off an extractor at some point. ( and possibly dig out casings from your arm) federal, cci, anything but rem

 

[kaen3e]

tony i have had no problem w rem. i typically run the golden bullets. imho 22subguns have oob somtimes and really haven't noticed it with any particular ammo type. fwiw the new BDM mags are working great as of today

 

[tonytdmd]

Yet. I have been running Am180's, UZI 22 kits back from gen 1 groups (1985), and mac open bolt 22 kits. Anytime I have tried Rem bulk pack , I have blown extractors and cases that look like confetti. The pressure curve is to high (contributes to the snappy recoil, compared to the gentle push of federals) You may note that rem works great in super short barrels where federal often wont function them. The reason is the Rem develops its pressure sooner under the pressure curve, whereas in a long barrel the velocities are similar. If you run Rem bulk pack in an open bolt, you are rolling the dice. (However, I have experimented with it in Practical solutions kit, and it isnt prone to this due to the case support provided by the floating chamber, plus it doesn't have an extractor to blow off )

 

[montana_jeepn]

That is funny you mention the blown extractor. I am about to order a couple from barrelxchange. I don't remember what ammo I was shooting when it blew, but I haven't fired it in a couple years.