Ask the Instructor: What Causes Choke Tube Failures?

Q: What causes choke tubes to fail, and how can I prevent damage?

A:  In most cases, choke tube failures are preventable. True manufacturing defects are relatively rare; improper installation, maintenance, or choke selection are much more common causes.

One of the most frequent problems is a loose choke tube. Repeated firing can cause a choke to gradually back out of the barrel. If it becomes exposed, the wad can strike the edge of the tube as it exits the muzzle, potentially damaging both the choke and the barrel. Chokes should always be installed securely with the proper wrench and checked periodically to make sure they remain fully seated.

Carbon and fouling buildup can create a similar problem. Residue accumulates beneath the rear portion of the choke tube and along the internal ledge of the muzzle. Over time, that buildup can prevent the choke from seating completely. When the gun is fired, the wad may contact the raised edge of the tube, which can eventually bend or crack it. Removing and cleaning your choke tubes regularly—particularly after high-volume shooting—helps prevent this type of damage.

Another common mistake is using the wrong choke for the gun or ammunition. Choke tubes are not universally interchangeable, even when they appear similar. Using the wrong model can result in an improper fit. Ammunition matters as well. Steel shot does not compress like lead, so excessively tight constrictions—or choke tubes that are not rated for steel—can create unnecessary stress and damage.

Choke tubes are relatively simple components, but they still require proper care. Keep them clean, install them correctly, and make sure the choke is compatible with both your shotgun and the ammunition you are using. Most choke-related failures are not mysterious mechanical problems; they are maintenance issues that can be avoided with a little discipline and attention.

Choke Tube Failure - Ask the Instructor - Explained by Master Target Shooting Instructor Don Currie