Ammunition Recall Notices: What Out-of-Spec Rounds Reveal

When a box of ammunition leaves the plant out of spec, the public record usually begins with a recall notice. That notice is short, carefully worded and easy to skim past. For anyone running a loading line, it is worth reading closely, because the same few failure modes appear in notice after notice and across manufacturers of every size.

This post goes through recent recall and safety notices that ammunition makers have published, quoting their own words. It sorts them by what went wrong and asks what kind of inspection would have stopped each defective round before it reached a box.

Why recall notices matter more for ammunition than for most products

Most consumer products in the United States fall under the Consumer Product Safety Commission. Ammunition does not. The CPSC's own list of products outside its jurisdiction lists "Firearms and ammunition" as products handled by ATF instead. Every notice quoted below was issued by the manufacturer itself. In practice, a loader's own process control, inspection data and lot records decide whether a problem stays inside the building.

That puts the weight on the manufacturer. Reading what other manufacturers have had to announce is one of the cheapest lessons in quality control there is.

Failure mode 1: incorrect or excessive powder charges

The most common theme in recent notices is the powder charge.

In September 2024, Winchester issued a recall for seven lots of its 22 LR M-22 ammunition, stating that the lots "may contain incorrect powder charges. Ammunition with excessive powder charges may cause firearm damage, rendering the firearm inoperable and subjecting the shooter and bystanders to a risk of serious personal injury."

Federal issued a safety warning for specific lots of 45 Auto across several of its product lines, saying the affected product "may contain an incorrect propellant charge. Use of product from these lots may result in firearm damage and possible serious injury."

Older notices on the AFTE recall and safety warning list show the problem is not new. A 1992 Winchester notice for a lot of 22 Subsonic reported that "approximately 1,024 double powder charge weight cartridges may have been produced out of 440,000 rounds manufactured" in that lot.

A charge that is too heavy or too light changes the weight of the finished round. A loaded-round weight check with a tight enough limit is the direct control for this failure mode.

Failure mode 2: light charges, squibs and bore obstructions

At the other end of the scale is a charge that is too small to push the bullet out of the barrel.

In August 2022, SIG SAUER issued a product warning and recall for one lot of 9mm 115gr Elite Ball FMJ. The lot "may have powder charge variations that could result in a bullet remaining in the barrel (i.e., a bullet-in-bore obstruction). Firing a subsequent bullet into a bore obstruction could cause firearm damage, rendering the firearm inoperable and subjecting the shooter and bystanders to a risk of serious personal injury."

The Hornady product recall list includes earlier notices for rounds that "may exhibit light or no powder", and for a lot of 30-30 that "may be under loaded."

The squib is the most dangerous failure mode because it fails quietly. The shooter hears a weak report and feels little recoil, and the next shot is fired into a blocked bore. Our AccuWeigh 360 is built to catch "a missing primer, a light or heavy powder charge, a wrong or defective projectile, damaged brass", which covers the charge-related causes of this failure.

Failure mode 3: the wrong propellant

Some notices describe a propellant problem rather than a quantity problem.

In September 2023, Remington issued a recall for three lot codes of Core-Lokt Tipped 300 Win Mag 180 grain. It stated that certain boxes "may contain shells with an incorrect propellant."

In 2021, Winchester and Browning each announced recalls of 9mm Luger 115 grain lots. Both said the ammunition "may contain propellant that does not properly ignite and burn when the cartridge is fired", which may result in a bullet remaining in the barrel. See the Winchester notice and the Browning notice.

We want to be precise about this category. If the wrong powder is thrown at the right weight, or the right powder at the right weight fails to burn properly, a weight check alone may not flag the round. Weight inspection controls quantity. Propellant identity and behavior are controlled upstream, through lot control, powder handling and ballistic testing. A good QC program uses each method for what it actually measures.

Failure mode 4: high pressure

In August 2024, Hornady issued a product warning and recall notice for 16 lots of 350 Legend. It stated that the product "may exhibit high pressure. Use of this product may result in firearm damage and/or personal injury."

The notice does not state a root cause, so we will not guess at one. The lesson for manufacturers is that pressure problems are found and announced after rounds are in the field. The records a manufacturer keeps on each lot decide how narrowly the recall can be drawn.

Failure mode 5: the wrong cartridge in the box

Federal issued a product warning for Champion 40 S&W covering two lots of "boxes labeled 40 S&W that may contain 9mm ammunition." The notice warns that "Use of 9mm ammunition in 40-caliber firearms may result in firearm damage and/or personal injury."

Mixed-caliber escapes usually begin upstream, in mixed brass or a changeover that did not fully clear. Our AccuSort headstamp sorters recognize headstamps "against a library trained on your own brass". The AccuSort 250 adds a side-view camera that "separates .300 Blackout from reformed 5.56 and screens trim length." We will cover mixed-caliber prevention in more detail in a separate post.

What the notices have in common

Read together, these notices point to a few practical conclusions for any loading operation.

• The defect is rare, and that is the problem. In the 1992 Winchester example, about 1,024 cartridges in a 440,000-round lot were affected, roughly one in 430. A small sample drawn from that lot could easily come back clean.
• Most of the defects change something measurable. Charge errors change weight. Wrong-caliber rounds change weight, length and headstamp. Damaged brass changes the case's shape.
• Lot records decide the size of the recall. Each notice above is drawn around specific lot numbers. The better a manufacturer can show which rounds were good, the smaller and cheaper the recall.
• The manufacturer carries the risk. Each notice was issued by the maker. Catching the problem in the plant is far cheaper than announcing it afterwards.

Where Ammo Inspector equipment fits

We build inspection equipment for the failure modes that can be measured on every round.

• AccuWeigh 360 weighs "every projectile, case or loaded round to within a tenth of a grain". The AccuWeigh 360 is modular: it starts at 3,600 rounds per hour with one weigh cell and scales past 12,000 rounds per hour as weigh cells are added. It stores "a record of every part weighed". Connected to a loader, "it catches a bad run as it happens instead of after a whole lot is loaded."
• AccuVision 360 is "a virtual case gauge for every round, at 6,000 to 10,000 rounds per hour". It uses machine-learning detection for "dents, dings, split necks, deformed mouths and surface flaws."
• AccuSort sorts brass by headstamp at up to 28,800 cases per hour on the AccuSort 300, with accuracy of "up to 99.9999 percent with a well-trained library."

All of this runs on our patent-pending firewall decision logic, which "fails safe: when a reading cannot be trusted, the part is rejected rather than assumed good."

No inspection system replaces good powder handling, lot control and ballistic testing. But every round that leaves a line without being measured is a round the manufacturer is vouching for without data.

Talk to us about your line

If you load ammunition commercially or under contract, we can help you decide which failure modes to inspect for on every round and which to control upstream. Tell us what you load. We will spec the line.