Posts Tagged ‘Rimfire Ammunition’

5.56x45 and .22 Long Rifle

Cartridge of the Week, the .22 Long Rifle Rimfire

So, you think the .22 Long Rifle is a kids round? Don’t bet your life on it. This grand old cartridge predates anything we previously reviewed. It came about in 1887 and up until 1890; manufacturers loaded it with only black powder. It is one of the oldest self-contained cartridges still in mass production—and it is lethal.

eley sport 7-EL22SP

GIGO Rules in .22 Ammo

If you haven’t lot-tested rimfire ammo in your 22 LR rifle, then GIGO will certainly bite you — GIGO being the programming acronym for Garbage In, Garbage Out. Shooting 22 LR rimfire rifles accurately presents an unavoidable problem for small-game hunters: You can’t load your own ammo.

Survival Mom the book

Pistol Tip from The Survival Mom

Lisa Bedford, better known as The Survival Mom, is a preparedness-minded writer, blogger, trainer, and mom who encourages other women to adopt a calm and common-sense approach to an uncertain future.

Quantity has a Quality of its Own

Henry Golden Boy .22 lever action holds 16 rounds.

Henry Golden Boy .22 lever action holds 16 rounds.

Use of a .22LR rifle makes practice easy and enjoyable.

Use of a .22LR rifle makes practice easy and enjoyable.

Not everyone can shoot powerful centerfire guns. For a person with wrist damage, even a mildly  recoiling 9mm service pistol would be too much. A person with little upper body strength would be  hard-pressed to handle an AK or an M1 carbine, though they feel very light to most shooters. Shoulder  damage would make recoil of a .223 feel excessive. Many turn to rimfire guns as the best alternative, counting on landing a greater number of hits to make up for the lower power of the round. Is that prudent?

Let’s look at the home defense application first. The reduction of power from the oft-recommended  12ga or 20ga shotgun to a .22 rifle is drastic. A typical .22LR bullet weighs 40 grains, same as a .30  caliber #1 buck pellet. A single round of buckshot contains 16 of them, more than a typical rimfire  magazine. Penetration is very similar at 10″ to 14,” with 40gr hollow points expanding to about .30  caliber in gelatin when fired from rifles. While rifle bullets retain velocity further downrange, that’s  irrelevant for the typical in-house defensive use. Due to insufficient penetration, 30-grain varmint  rounds are less effective against human size attackers.

By this comparison, we can expect a magazine dump from a sporting semi-auto .22 rifle to have an  effect similar to a single shotgun blast. A rimfire rifle has no muzzle flash and much less  pronounced report compared to a shotgun. Given the minimal recoil of such rifles, good practical   accuracy is actually quite typical in home defense situations. For the same reason, diligent practice  is possible even for those who cannot handle the recoil or the weight of the bigger rifles.

The down sides to using rimfire used to be the reduced reliability of the ammunition, the awkward  rimmed cartridge shape for autoloaders and the limited magazine capacity. Fortunately, these  problems are now largely imaginary. Let’s consider them one by one.

“Everyone knows” that rimfire ignition is less reliable than centerfire. That is certainly evident with  bulk ammo. Some brands and lots may have a misfire every 20 rounds. This lack of reliability is  most certainly not an issue with the higher grade cartridges. A CCI competition shooter has  recently reported a million rounds fired without a single misfire. While not up to a million rounds, I’ve  had zero malfunctions over tens of thousands of such defense-oriented types as CCI Mini-Mags  and Velocitors, or any of the Eley-primed types.

10-round box magazine.

10-round box magazine

32-round box magazines

32-round box magazines

50-round rotary magazines

50-round rotary magazines

Rimmed cartidges are indeed rather tricky to fit into magazines. Fortunately, we’ve had well over a  century to perfect the feeding devices. Straight box magazines can hold up to a dozen, tube  magazines up to 18, curved box magazines up to 32. They all work fine. Some people prefer the  smaller flush-fitting box (or rotary in the case of 10-22) magazines, others like the higher capacity  and the additional leverage at reload time afforded by the extended models. Rimfire drums can  hold 50 rounds but keep only the few rounds in the feed tower under spring pressure. The  remaining 40-odd cartridges are supported by the individual cogs. That solution drastically reduces  the friction inside the rotary magazine and also eliminates possible deformation of the unjacketed lead bullets. 275-round pans for the American 180 submachine guns remain a less practical  curiosity. The plus side of the rimmed design is the simplified headspacing which permits looser  chambers and thus greater tolerance for fouling.

AR15 with a dedicated .22 upper

AR-15 with a dedicated .22 upper

Sig522 with a red dot sight.

Sig522 with a red dot sight.

10-22 with a light/laser and a folding stock

10-22 with a light/laser and a folding stock

AR15 with a .22 conversion kit

AR-15 with a CMMG .22 conversion kit

The sporting background of the traditional rimfire rifle makes it a bit challenging to operate under  pressure, especially when reloading is required. Fortunately, a large number of rimfire clones of  fighting rifles are now available. These mimic Sig 556, AR-15 and SU16 carbines in all but the  caliber and the weight. Most use polymer lower and sometimes upper receivers to shave off a  pound or two of weight, with almost another pound saved by the lighter ammunition. These guns have familiar oversized controls, accessory rails and tend to be fairly robust. When recoil is a concern but weight isn’t, rimfire conversion kits become an option.

Keltec SU22, a very light carbine.

Keltec SU22, very light carbine.

Peter Grant, a friend who has trained many handicapped shooters, favors .22LR in very few  cases, mainly when centerfire is just not an option. He said that the low cost of the ammunition and  the minimal wear on the shooters allowed his trainees to hit a rolling ping-pong ball reliably after  expending hundreds and even thousands of rounds in practice. Three of his students used laser sighted rimfire pistols to fight  muggers, all with the same outcome: dead thugs had their faces  cratered by multiple .22 slugs. With the same rounds being notably more energetic when fired from  rifles, there’s no doubt that they can be adequate for self-defense. A 12-gauge shotgun or a  centerfire rifle may be the choice for most Americans, but the lowly rimfire rifle is far from  inadequate. In many cases, it gets pressed into defensive service simply by being closer at hand than a dedicated fighting rifle. In any case, it’s worth knowing what it can and cannot do in combat.

Adams Arms Glock Conversion Kit—Practice Makes Perfect

OK, I admit it.  I don’t do dry fire practice nearly enough.  To me, training with my defensive firearms means live fire at the range, which means range fees and ammo costs and cleaning the guns afterwards, and that means I don’t train as much as I should.  And supplementing my training with dry fire practice is boring and tedious and in my opinion has a serious flaw—without a projectile going downrange and impacting a target, I don’t get feedback on whether I’m screwing it up.  Momma always told me “practice makes perfect,” but the truth is “practice makes permanent.”  I need a hole in the target to show me that I’m practicing correctly.

Enter the Advantage Arms LE .22lr Conversion Kit for Glock.  The mid-sized, 9mm Glock 19 is my daily carry piece and therefore the gun that I need the most training with.  Pistol marksmanship and manipulation are perishable skills. I want to train specifically with the trigger, controls, and grip of my Glock 19.  If I substitute my Glock practice with a Ruger MkIII target gun, the trigger is different, the sights are different, the grip angle is different, the magazine doesn’t drop free… you get the idea.  Pretty soon I’m just plinking, not training, right?  The Advantage Arms kit is a replacement .22lr slide assembly that drops right onto my Glock 19’s frame with no modifications.  At a casual glance the slide looks just like the factory 9mm slide, with identical cocking serrations milled into it and factory Glock adjustable sights.  It attaches and detaches just like the factory slide, which means I have to dry fire a .22 to take it off.  That’s normally a big no-no, but the barrel is relieved where the firing pin would normally impact it and get mangled.  The included 10-round plastic magazine drops free like the 9mm mags do and locks the slide back after the last shot like the 9mm mags do.  Shooting the .22 kit uses the exact same manual of arms and sight picture as a factory Glock 19, but firing ammo that costs one-fourth as much as the cheapest 9mm I can find.  Put another way, I can shoot four times as often per dollar spent on ammo.   Or, if I paid $250 for the conversion kit, it will pay for itself in shot-for-shot ammo savings after about 7000 rounds of ammo fired (around thirteen of those 525 round value packs I like to buy).

Shooting the .22 kit is a real hoot.  I was able to get a 2.5 inch group at 10 yards away with supported, slow fire, but the five-pound trigger in my Glock isn’t a target trigger, the sights aren’t target sights, and I was shooting cheap value pack ammo, not match grade stuff.  Honestly, that’s about as straight as I can shoot the gun in 9mm configuration anyway.  I told you I need more practice!  The kit only comes with one magazine, I’ll acquire more since they are only about $15.  A plastic, Glock-style magazine loader is included with the kit, and I’m glad.  Even though the mag only holds ten rounds it has a lot of spring pressure and the last couple of rounds are tiresome to mash into place with my thumbs.  A basic cleaning kit and some oil are also included.  I had some failures to extract spent casings during my first range trip, but they didn’t really bother me. Most .22lr conversion kits are known to go through a problematic break-in period before they “settle down” and become more reliable.  Additionally, the cheap ammo I was using is not on the list of recommended ammo types which is printed off and included in the box with the kit.  Next time I’ll buy some better ammo.

I’m planning on using the conversion to practice realistic drills such as drawing from my concealed carry holster and firing a controlled pair into a target seven yards away.  Why not just dry fire the drill?  When I draw from concealment I’m using gross motor skills (big muscles moving as fast as they can) to get the gun out of the holster and pointed in the right direction, followed up by fine motor skills (little muscles that have to move with precision) to acquire my sight picture, squeeze the trigger, recover from the recoil, find the trigger’s reset point, and squeeze again.  The natural mistake to make in this drill is to mash the trigger hard and skimp on the front sight alignment because I’m in a hurry and didn’t successfully switch from big fast movements to precise movements.  If I’m dry firing, I won’t even realize I’m doing it, but if I’m training with the .22 kit, I’ll know immediately that I screwed up as soon as I see the holes in the target.  And with dry fire I have to cycle the slide myself if I want to feel the trigger’s reset, which means taking my support hand off the grip and… well, its just not the same.  The only place where the conversion kit allows me to really “cheat” in shooting drills is with rate of fire, because the felt recoil impulse is much smaller with .22lr (in fact there is pretty much no recoil).  So I can really blaze away with the conversion kit, putting aimed rounds down range much faster than I realistically could with the same gun in 9mm.  Sure its fun, but again that’s plinking, not training.  I’ll have to keep that in mind.

I’m excited about picking up the Advantage Arms Conversion Kit and my plans to increase my live-fire training time with it.  Of course I will still be putting a lot of 9mm holes in targets as well, but I believe that my shooting fundamentals with the Glock 19 will improve by the extra practice I can afford now.  Hopefully my practice will make perfect, instead of just permanent.

 Glock_22_10 Glock_22_9

Guest Post: Rimfire Ammunition by Mr. Completely

Once again, Mr. Completely has written an outstanding piece that I felt just had to be showcased in this blog.

Getting a rimfire semi-auto pistol to function for several hundred rounds in a row without a single stovepipe, mis-feed, failure to fire, or other malfunction is truly a challenge under any conditions. You can be sure, though, that if it’s going to malfunction, it’s most likely to happen in a match where time lost clearing the problem will cost you dearly. Rimfire pistols, just like computers, KNOW the worst possible time to act up, and they seem to take fiendish pleasure in your misfortune!