The .22LR as a caliber needs no introduction. Probably the most important caliber for training (and many other purposes).
.22LR caliber AR’s on the other hand come in many different variety, brand and technology. And almost as a topping on a already sick joke – information about different magazines, their compatibility and differences between generations are nowhere to be found.
The .22LR AR type magazines are in my oppinion the biggest mess in the whole “22AR but what brand and where” -question. I’ve seen people having discussions about same and/or different 22AR magazines without any common knowledge about the confusion.
I’m starting a series of posts covering .22LR AR-type magazines – one manufacturer at a time. Starting from Black Dog Machine.
Note that some magazines have no distinct naming convention so as a clarity to the important issue I’ve come up with GenX -type of naming (the naming started from BlackDogMachine’s Gen2 and Gen3 magazines and I just expanded it around those two)
Enough with the prologue, continue to the article below:
We shot the years first reservist 3gun (SRA) match in Huovinrinne shooting range.
The stages were good with enough challenge and variance.
My biggest failure was not to check the barrel line in small hole, which cost 2 misses and I also shot 1 N/S on my side, but still managed to get second in overall!
( overall and stage results)
Also I should learn how to shoot pistol, as in stage 1, I shot one unnecessary extra shot to the “close range” target:
You saw right, the target in previous picture is huge!
Due to range restrictions, the targets could be set only to the back berm. This effectively prevents building a stage with close range and long range targets, but luckily the organizer had circumvented this, by applying greatly enlarged targets next to normal size targets 😀
Some time ago I acquired a roller cam pin to my AR-15. Gas key had to be machined to match the new round cam pin, but that was not an issue as I had planned to give my bolt carrier some diet in a form of tender milling from my trusted gunsmith. (Final weight for bolt carrier is 173 g.)
My roller cam pin had one problem though. The screw that was supposed to hold the brass roller in place had a tendency to loosen up and then jamming itself against gas key.
Original screw was completely flat, without any screw drives. I did not had adequate tools and strong enough thread lock to hold the screw in tightly.
I contacted the roller cam pin manufacturer and they offered to fix it for me. They apparently have some adhesive to semi-permanently attach the screw to rest of the cam pin.
I, being more of an DIY-guy, opted to fix the roller cam pin myself.
After two iterations I was finally happy with the solution.
It may not be the best possible steel strength for this particular application, but the brass roller leans against small bulge in the cam pin, so the screw don’t have to take any force coming from side. It just has to hold the roller in place and avoid any contact with gas key.
Time: 1 hour
Tools used: one random M4 screw, hand-file, cordless drill, hacksaw, PH2 head screwdriver and “Extra hard thread lock”
Two Special Squadders and one prospect took part in Uudenmaa court SRA qualifications competition.
The weather was great for the date ( October 25th) and the stages were mostly pretty nice to shoot, with only few complaints: the plates on the plate-rack on stage1 were very heavy and it was not easy to tell a hit from 300m and 150m metal targets (stage4 and 5).
First we had to wait pretty long for the stage officials to finish their pre-match, but after that, the timetable held and we could quickly move to next stage after the previous one was shot.
After last stage we had some car problems but managed to get to awards ceremony in time to collect the medals for 1st and 2nd in Open Division. Show gallery