Berry's Corn Media 14/20 Grit 6 lb. Box

Berry's Corn Media 14/20 Grit 6 lb. Box is a premium abrasive tumbling compound designed for precision ammunition reloaders, law enforcement brass processors, and military ammunition reconditioning operations. This product addresses a critical need in high-volume ammunition production: efficient, consistent case cleaning that removes powder residue, primer sealant, and corrosion without damaging case integrity.

The corn cob-based media delivers the abrasive action required for inspection-ready cartridges. The 14/20 grit specification represents a balanced abrasive profile—coarse enough to cut through stubborn contaminants and oxidation, yet fine enough to preserve case walls and chamber dimensions. Berry's Corn Media achieves this through carefully graded corn cob particles that tumble cases without generating excessive heat or creating micro-fractures common with walnut or ceramic alternatives.

Tactical and law enforcement armorers benefit most from Berry's Corn Media when processing brass from training ranges and duty rounds. The 8.3 lb. box is sized for standard rotary or vibratory tumblers used in reloading labs and small-scale commercial operations, offering approximately 2–4 hours of active tumbling time depending on load density and contamination levels. The natural composition is biodegradable and safe for indoor use, reducing ventilation strain compared to synthetic abrasives.