How to Pick Up Brass: Retrievers, Sorting, and Safety Checks

You just finished a range session and left your brass scattered in the dirt, losing time, money, and potential practice ammo. This page shows you exactly how to gather those cases efficiently and sort them so only the good ones make it to the press.

Why you should collect your own brass

Commercial brass is the most expensive option. Collecting cases saves you money and often gives you better consistency because you can sort them by headstamp and manufacturing batch. Before you buy anything, it is worth looking at using sonic waves to clean.

When you reload from collected cases, you are also ensuring that you only use brass that fits your specific chamber well. This reduces the risk of overpressure and improves shot grouping.

There are four main materials for cartridge cases: brass, nickel-coated brass, steel, and aluminum. Brass is the standard for reloading because it is malleable and corrosion-resistant. Nickel-coated brass lasts longer and handles sweat better but requires carbide dies to avoid scratches.

Steel and aluminum are rarely worth reloading; steel accumulates carbon and is unsafe to deprime, while aluminum splits after one or two firings.

Stick to brass and nickel-plated brass for your reloading station. These materials offer the best balance of cost, accuracy, and longevity.

Retrievers: Magnets, Brushes, and Bars

There are two main ways to pick up brass: magnetic retrievers and mechanical brushes. Magnetic bars work by rolling over the ground; they attract steel, nickel-plated, and standard brass cases. We go through preventing fouling buildup after range step by step in its own article.

For shotgun shells, a dedicated magnetic picker is faster. For rifle and pistol cases, a rolling magnetic bar is the standard. You roll it parallel to the ground to pull cases toward you.

• Magnetic Bars: Great for dry, open ranges. They attract cases from steel, brass, and nickel plating. They are lightweight and easy to carry.
• Brush Retrievers: Better for muddy or wet conditions where magnets may not stick or pick up dirt. They use bristles to sweep cases into a tray.
• Handheld Magnets: Useful for tight corners or behind targets where a long bar won’t reach.

Most retrievers have a release mechanism. When you find a spot with many cases, stop rolling and release the magnet to drop the brass into a bucket. This prevents overfilling and keeps the magnet clean.

Sorting by Caliber: The First Step

Before you clean a single case, you must sort by caliber. Mixing .223 and .221 Rem Fireball is a common mistake because their case dimensions are nearly identical.

Use a plastic or metal case sorter. These have calibrated dividers that let you separate calibers quickly. They also remove loose dirt and grime as you drop cases in.

If you only shoot one caliber, you can skip the sorter and go straight to quality inspection. However, if you shoot multiple calibers, a sorter is essential to avoid contaminating your batch. If that sounds like your bench, read up on rotary vs vibratory tumbler next.

Sort by headstamp if you want to track the life of your brass. Many loaders separate their cases into ‘year 1’, ‘year 2’, etc., so they know which cases are about to fail.

Quality Checks: When to Throw Brass Away

Not every case is worth reloading. A case that has failed once will likely fail again or cause a safety issue. Look for these defects:

• Neck Splits: Hairline cracks or splits in the neck area. These are dangerous and must be discarded.
• Body Bulges: If the case body is swollen, it will not resize properly and may get stuck in the chamber.
• Deep Dents: Surface scratches are fine, but deep dents in the web area (for rifle cases) are not. Check the web thickness with a micrometer if you are doing precision work.

Use a 10x magnifier to inspect the necks and heads of your brass. If you see a split, put it in the trash. Do not risk reloading it.

Also check the case mouth. If the mouth is burled or deformed from bullet extraction, use a chamfer tool to smooth it. This ensures consistent bullet seating and prevents the brass from cutting your finger during inspection.

Depriming Before You Clean

Once your brass is sorted and inspected, remove the primers. This is a critical step before tumbling. Cleaning dirt out of a case is easy, but cleaning it out of a loaded primer pocket is not.

Use a universal depriming tool or a dedicated depriming tray. This removes the old primer, exposing the primer pocket so your cleaning media can scrub the inside of the pocket.

After depriming, your cases are ready for the cleaner of your choice, whether ultrasonic, rotary, or vibratory. The deprimed state ensures that no primer residue remains in the pocket, which could interfere with the new primer’s fit.

Store your deprimed brass in labeled bags or boxes. Mark the bag with the caliber, date, and manufacturer. This organization makes it easy to find the right cases for your next shooting session.

The bottom line

Frequently asked questions