There are a few things to consider when experiencing malfunctions or stoppages, especially when dealing with a gun whose quality is not under question. Much of the same information can be applied to modern rifles such as the popular AR platform, as well.
Magazines are vital to the proper feeding of cartridges, and poor feed lip geometry or improper spring tension can hamper the most capable firearm in terms of feed reliability. Even if the magazines are of top quality, if they have been heavily used in training or competition—to the point where springs are weak or feed lips deformed—they will not function percent and should be discarded in favor of new mags.
The same applies to recoil springs: Good quality coil springs as found in s should generally be replaced every few thousand rounds, while the more durable flatwire springs found in Glocks and many other contemporary pistols can often go K rounds before replacement—but none last forever. Not only will this insure continued reliable functioning, it will also extend the service life of your firearm by reducing battering to the frame and other components.
Similarly, not all ammunition is created equally: the overall length of the loaded rounds may be inconsistent, there may be bulges in the case caused by sloppy bullet seating that create nasty situations where the round ends up sealed into the chamber, and unable to be cleared by conventional tap-rack procedures.
In worst case scenarios, careless ammo quality control may catastrophically damage the firearm and cause severe injury to the user. At very least, accuracy is often poor, and the ammo is dirty, which necessitates more cleaning of your firearm. Stick with top quality manufacturers, and be very careful about choosing smaller companies that may or may not have adequate quality control in place. Some boutique-type companies produce truly exceptional ammo, however. To prevent a gun from jamming you should regularly check that all parts are in good working order and swap out.
There are a surprising number of springs on a handgun; the recoil spring, the magazine, spring around the firing pin, and more. Although each spring on a firearm serves a different purpose, a worn out spring may cause a gun to jam. Two important examples of a spring that might cause a jam are the spring located in the magazine, and the recoil spring which controls the movement of the slide.
If the magazine spring is worn out, it may not push the cartridge up high enough to align with the feed ramp for the chamber. Usually this is more evident when you get down to the last few rounds, but problems can present in a full magazine as well. Alternatively, a worn out recoil spring may result in the slide remaining out of battery despite a successfully fired round.
Of course, this can also be attributed to insufficient pressure from the ammunition. Another overlooked source of gun jams are damaged parts.
One example that comes to mind is a damaged barrel. If you notice that cartridges stick when attempting to chamber you may have a damaged feed ramp. Recently, I had to scrap one of my magazines because it was damaged. Turns out the follower kept wedging cartridges into the top of the magazine body. Although it appeared to function correctly, in practice it did not work. Gun jams and fails to go into battery. This issue no longer present after break-in period.
Another reason your gun may jam is because it simply needs some time to break in. Of course, in an ideal world the gun would work straight out of the box. But in reality using your gun wears down friction points and exercises springs. Another real world example is my Walther PK In an effort to make cleaning easier, I bought an aftermarket spring and guide rod assembly.
During the first several hundred rounds, it would occasionally fail to go into battery. While it was concerning, the problem ended up working itself out and I no longer experience this kind of stoppage.
Although avoiding stoppages altogether is near impossible, basic maintenance and proper technique will help prevent a gun from jamming. Routine cleanings and inspection are essential to keep a firearm in working condition.
Additionally, if you use quality ammunition you further reduce the risk of a jam. Your email address will not be published. My name is Mike and my goal is to provide you with all types of information for your everyday carry needs. Growing up the son of a Marine, I was raised to be prepared and adaptable to overcome life's challenges.
So, whether it's setting up and maintaining your EDC bag, laws on concealed carry, or refining your medical kit we tackle the hard questions. I am a concealed permit holder for over a decade , a lifetime NRA member, certified firearms instructor, and a firearm enthusiast. Many of my friends and family are former or active duty military, and I have consulted with them on many of the topics I cover in this blog over the years.
This site EverydayCarryConcealed. Table of Contents. Improper Loading Or Shooting Technique. Thread: what causes this type of jam? Thread Tools Show Printable Version.
November 19th, , PM 1. The gun is well out of its "break in", it was clean when i started and it had some light teflon based oil on the slide rails. I had my wilson combat mags, my kimber mag and my cheap "G. Same jam happened with each type, usually near the bottom of the mag. I was firing grn ball ammo from two different companies, still had the same jam.
The jams were November 19th, , PM 2. Buy a Colt. Sorry, couldn't resist that, but there are a number of possibilities. First, the extractor may have a sharp lower edge, is there a "bite" mark on the rear of the case near the extractor groove? Second, when you reach the last round or so in the magazine your slide velocity is at its peak and I would suspect early release by magazine feed lips if it weren't for your statement about all different mags doing the same thing.
Third, is there any scarring on the nose of the bullet? Is there perhaps a sharp edge somewhere causing the problem? Fourth, and this is a stretch, the last round may be deflecting off the slide catch piece that projects into the top of the magazine area and "flipping up" to cause this also. I'm sure there are others in this group with far better ideas than mine but here's an answer of sorts anyway. Marty Southern Oregon Mountains. November 19th, , PM 3. With new springs, it usually ran OK for a short while, and then started to act up again and do it more regularly as the round count increased.
I always expected not to get through a mag without a stoppage, and it was usually three or four on average. I had the same problem regardless whos mags I was using. I switched to Wilsons with plastic followers early on, as the factory Kimber mags with the metal followers were starting to wear a grove into the feed ramp. November 19th, , PM 4. The nose of the bullet didnt have any marks on it. It could have something to do with the lower edge of the extractor, i'll have to strip it down and look at it.
November 19th, , PM 5. November 20th, , AM 6. How rough is the slide's breech face? Any buildup, etc?
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