Sunday, April 27, 2014

Tiger McKee - Dry Fire May Induce Bad Habits

Skill Set: Bad Habits by Tiger McKee

Almost everyone recommends dry fire practice, but there may be dangerous bad habits ingrained from the practice, particularly when you cock a pistol or rifle with your finger on the trigger to practice resetting the trigger.  Have you just trained yourself to leave your finger on the trigger when your gun goes "click" instead of "BANG"?

Sunday, April 20, 2014

Magazine Update; Korean Glock and AR-15

Korean Glock Magazines

I have a bunch of these, both 15 and 17 round 9mm magazines.  Initially, there were some that were not dropping free when empty, but they have "broken in" and now do drop free from multiple pistols.  I've been in the habit of always taking a Korean mag along when I take a Glock out for some practice, which is pretty often.

Loading the 15-round magazines, along with a couple of Glock factory magazines, I noticed that Korean magazines were noticeably easier to load.  Although I haven't used the Korean magazines all that much, the springs had compressed a bit, and were just a little bit longer than the mag tube.  To the credit of the Koreans, the mags actually never failed.  Regardless, I replaced the Korean springs with Wolff extra power springs, and the Korean magazines soldier on.

All the magazine springs have some use on them.

The KCI spring wire diameter is 0.045".  The Glock magazine spring wire diameter is 0.051".  The Wolff magazine spring wire diameter is 0.048", but is obviously a much longer spring.  It doesn't seem like a lot, but I think you can see that the Korean spring is smaller.

The 17-round magazines don't seem to have this problem, or at least it hasn't manifested yet.

The Korean magazines are significantly cheaper than Glock factory magazines, but consider the added expense of the replacement spring before you buy.  Centerfire Systems sells the Korean mags for $8 and $13 each, and I wouldn't pay very much more than that.  Brownells sells 3-packs of Wolff magazine springs for $18, IIRC.

And yes, I'm sure that that is the right Wolff spring for that magazine, and yes, I can still get 15 rounds into that magazine.

Lancer AWM AR-15 Magazine

I've been trying out one of the opaque black 30-round Advanced Warfare Magazines for a little while.  I was just about to add it to my SHTF stash.  This weekend I was shooting one my carbines, and when I inserted the AWM magazine into the rifle, I noticed that a round popped loose into the action.  Although it struck me as odd, I cleared it, and continued on.  I came home, loaded the magazine back up, and tried that a few more times.  I tried downloading the magazine 1, 2, and 3 rounds.  When inserting the magazine "with vigor," but not abusively hard, I was able to duplicate the failure over and over again.  Dropping the magazine from two and a half to three feet onto a carpeted floor will also release a round about half the time.

I think I bought 3 of these.  I don't think I'll buy any more.

Oh, one of my older Lancer L5 magazines does it too.  D'oh!

It would seem that I am not alone.  Did some searching, and I found a member, G19A3, had reported the following.
Although I cannot recommend Lancers either, I loved the translucency, but found that they tend to "waterfountain" a round or three when slapped in authoritatively on a bolt-locked-back condition. I experienced this with 30rd Lancer L5's and the later 20rd AWM's. I roll only Colt or OKay USGI 20rd & 30rd aluminum mags now. I'm still hoping one day for a translucent mag that doesn't do this. Someone indicated on another thread they have tested the new HK translucent mags for this and they are GTG in that respect, but I haven't tried them yet. I understand AUG mags do this too in a bolt-locked-back condition. Must be something about the polymer to make a translucent mag, even with metal reinforced lips like the Lancers.

CAA MAG17 AR-15 Magazine

The last couple of times I took this magazine out, I had bolt-over-base malfunctions.  This is with two different brands of ammunition.  Never had this happen before with this rifle.

I had it happen twice within about 12 rounds with Wolf Gold .223 Remington, 55 grain FMJ.  I unloaded the magazine, and loaded the remaining rounds into another magazine, and continued shooting without issue.  Went through 4 other different magazines (that day), without issue.  It's hard to draw any conclusion, other than that the CAA magazine is the problem.

The CAA MAG17 also will not firmly lock into the ACR.  The notch for the magazine catch is a little small, and I guess the ACR mag catch is a little larger than that of an AR-15 or M-16/M4.

Fortunately, I only bought one of these.  I like the features of the MAG17, but I'd rather have magazines that don't induce malfunctions.

Saturday, April 12, 2014

Reflections on SBR Laws and AR Pron

A little over a month ago, the BATFEABCNSAFYIXYZ Tech Branch sent a letter to police sergeant explainting that there is no law against shouldering a pistol, which got me to thinking.

This is a rifle with a 16" barrel.  No problem in most states.

This is a pistol.  No problem in most states, as long as you're 21 and don't attach a vertical foregrip.

This is still a pistol, even if you shoulder it, according to ATF Tech branch.  No worries.

Whoa there!!  This is an SBR.  Purchase or manufacture hindered by red tape.

The pistol with the SigTac arm brace is essentially the same size, with the same upper, as the Short Barreled Rifle, but the SBR requires a permission slip just because it has a proper rifle stock.

You can buy a rifle at 18 years old, but you have to be 21 to buy a handgun. Why? Because handguns are more deadly? In most cases, no, handguns aren't more deadly. It must be because pistols are more concealable.

So why is it that an SBR, which is larger than a pistol, but smaller than a "normal rifle," require fingerprinting, a chief law enforcement officer sign-off, a $200 tax, registration, and a 10 to 12 month wait to get the approval to take possession or build it?

In most states, you can go into a gun shop, or maybe a sporting goods store, and walk out the same day with either a tiny palm-sized pistol, or a long rifle, but something in between the two is taboo and quite heavily restricted?  It doesn't even matter if it's a single-shot or semi-automatic.  A H&R Handi-Rifle with a 15" barrel would be restricted basically the same as a machinegun, which is ridiculous.

The restriction on putting a vertical foregrip on a pistol seems to be just entirely arbitrary.  "They" don't want you to spray fire, and don't seem to want you to carefully aim either.  If you can own a pistol, then you can own a rifle, so what friggin' difference does it make if you hold a pistol with both hands?

Law, law, everywhere a law.  Do this, don't do that.  Can't you read the law?

It doesn't really make much sense, does it?

How about if we change the laws to require that you need to be 21 to buy a rifle with a barrel shorter than 16", or a shotgun with a barrel shorter than 18", and just repeal all of the other nonsensical garbage?