Rifleman Q&A: What Is A Squib Load?

posted on January 9, 2017
** When you buy products through the links on our site, we may earn a commission that supports NRA's mission to protect, preserve and defend the Second Amendment. **
squib.jpg

This picture is of an unusual incident whereby five bullets were stuck in a barrel; one just peeping out the muzzle, three more behind it and another which has jumped partially out through a crack in the top of the barrel. This stoppage was initially caused by a squib load.

Q: I recently encountered a malfunction that left a bullet stuck in my barrel. Thankfully the gun failed to cycle the next round, leaving a stove-piped case. What does one do in the event this happens? What causes this to occur? And is there a specific name for this situation?

A: We are glad you noticed the potentially catastrophic hazard before attempting to fire another round. As stated in the NRA Firearms Sourcebook, p. 23, this type of failure or stoppage is considered a “squib load” and is defined as “a cartridge or shell that produces projectile velocity and sound substantially lower than normal.”

“Most commonly, the shooter will be aware of a squib load as a shot that does not produce the expected level of either noise or recoil. Such a condition can be caused by a number of factors: use of old or deteriorated ammunition; contamination of the primer or powder charge; or failure to load a primed case with a sufficient amount of powder. Under the best conditions, the squib load has sufficient power to propel the bullet out of the muzzle (albeit at less than normal velocity). Often, however, a squib load leaves a bullet lodged in the bore—and therein lies the danger. If the shooter fails to recognize that he or she has had a squib load and fires a successive shot with the bore obstructed, disastrous consequences may result for both the gun and the shooter.”

To remedy the obstruction, it is suggested that the operator first unload the firearm by removing the magazine, followed by removing the spent case and/or live round from the chamber. With the firearm declared safe, inspect the bore for obstruction. The same safety procedure applies to revolvers—empty the cylinder and/or remove if possible. Some instances of bullets lodging between the cylinder and forcing cone have occurred, resulting in a seized cylinder. The simplest method for removing a bullet lodged in the bore is with a range rod. Due to the bullet’s obturation, additional force from a mallet or hammer may be required to successfully remove the obstruction—a task that might best be left to a qualified gunsmith who could further inspect the firearm.

Latest

P08 Luger Ihtog 1
P08 Luger Ihtog 1

I Have This Old Gun: P08 Luger

One of the most iconic sidearms ever made, the P08 Luger was a mainstay in the German army from before World War I until the end of World War II.

Wilson Combat Honors Melvin Forbes With NULA Model 20 Tribute Rifle

Wilson Combat is honoring the 40th anniversary of New Ultra Light Arms, the company founded by legendary riflemaker Melvin Forbes and now part of the Wilson Combat family of companies.

Preview: Otis Technology Pro+ Snap Caps

Dry-fire training is one of the most effective ways to easily improve your firearm-handling skills at home, and safely performing reloads and manipulations requires a good set of snap caps tailored to your firearm.

Review: TriStar Raptor II Walnut

TriStar Arms offers an extensive variety of cost-effective shotguns, including this walnut-stocked Raptor II, the latest in the company's semi-automatic line.

Preview: TangoDown iO Cover For Aimpoint T-2

The Aimpoint Micro T-2 and H-2 are quality, versatile red-dot optics, but they are also expensive, and, like all such units, can sustain damage from impacts and the elements.

Hornady’s 338 ARC

The latest hard-hitting Advanced Rifle Cartridge from Hornady, the 338 ARC, takes a swing at both established numbers and newcomers—after already producing successful offspring. 

Interests



Get the best of American Rifleman delivered to your inbox.