Give your brass a serious deep-clean with Berry’s Walnut Media (8 lb. box)—a trusted, go-to tumbling media designed for reloaders who want fast, effective case cleaning, especially when brass is heavily soiled. If you’re dealing with range pickup brass, carbon-stained cases, or gritty, grimy lots that need real abrasion to come back to life, this walnut shell media is built for the job. This product is MPN 75221 with UPC 711148775223, making it easy to match for inventory and accurate online listings. Natchez+1
Why walnut media is a reloader favorite
In the world of vibratory tumbling, walnut media is known for being more aggressive than corn cob—making it ideal when you need cleaning power, not just a cosmetic polish. Retail listings commonly describe Berry’s Walnut Media as coarse cleaning media for really dirty brass, and note that walnut is more abrasive than corn cob, helping it cut through heavier fouling more efficiently. Sportsman's Warehouse+1
That makes this 8 lb box a perfect “first stage” media for:
Dirty range brass with heavy carbon
Tarnished brass that needs extra bite
Brass that hasn’t been cleaned in a long time
Shooters who process large batches and want consistent results
Coarse grit for faster, deeper cleaning
Berry’s walnut media is widely listed as a coarse grit blend (commonly referenced as 20/30 grit in listings), which is exactly what you want when the goal is to strip grime and residue quickly. The coarse texture helps scrub away stubborn soot and oxidation so your brass comes out cleaner and more uniform—ready for sizing, trimming, and the rest of your case prep workflow. Sportsman's Warehouse+1
Matte finish results that scream “ready for prep”
Walnut media is often chosen for cleaning performance rather than high gloss, and product listings commonly note that walnut tends to leave brass with a matte finish compared to the shine you can get from corn cob. For many reloaders, that’s not a downside—it’s a sign you’ve removed the dirt and you’re ready for the next step. (If you want extra shine, many people run walnut first, then finish with corn cob and polish.) Sportsman's Warehouse
8 lb box: the sweet spot for high-volume case cleaning
The 8 lb. box format is perfect for reloaders who want enough media to refresh their tumbler multiple times without storing a giant bucket. It’s a practical size for:
Regular weekend shooters
High-volume pistol reloaders
Anyone processing batches of mixed range brass
Keeping a spare box on hand for when media gets saturated
And because it’s a standard reloading supply item, it’s easy to integrate into your routine—swap it in, run your cycles, and keep your brass moving through the pipeline.
Best use cases and tips (for better results)
To get the most out of Berry’s Walnut Media:
Use it when brass is really dirty or stained and needs more abrasion. Sportsman's Warehouse
Consider adding a polish or running a second stage (corn cob) if you want a mirror shine.
Replace media once it becomes dark, dusty, or slows down cleaning performance (that’s a sign it’s loaded with residue).
SEO-friendly product details (for listings and search)
Brand: Berry’s Manufacturing / Berry’s
Product Name: Berry’s Walnut Media
Type: Brass tumbling media / vibratory tumbler media
Weight: 8 lb box Natchez
Grit: Coarse (commonly listed 20/30 grit) Sportsman's Warehouse
Use: Cleans heavily soiled brass; more abrasive than corn cob Sportsman's Warehouse
MPN: 75221 Natchez
UPC: 711148775223 Natchez
If you want dependable, no-nonsense cleaning power for grimy cases, Berry’s Walnut Media 8 lb. Box (75221 / 711148775223) is a proven choice—coarse enough to tackle the nasty stuff, consistent enough for batch processing, and sized right for real-world reloading benches.
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