Brownells Cotton Bore Mop 35-38 Caliber 12 Pack

A bore mop is one of those consumable cleaning tools that separates a well-maintained rifle from one that gets left to the elements. The Brownells Cotton Bore Mop in 35-38 caliber is sized to fit mid-range rifle bores, making it useful for cleaning everything from classic cartridges to modern precision rounds in that caliber family. These are cotton—not synthetic—which means they naturally absorb solvents and oils more effectively than cheaper alternatives. You get twelve mops per pack, so you won't run out mid-cleaning or hesitate to replace a fouled mop instead of reusing a dirty one.

Cotton fiber's natural texture provides genuine scrubbing action as you work the mop back and forth through the bore, helping dislodge powder fouling and carbon buildup that patches alone won't always capture. If you're running a solvent-heavy cleaning routine, cotton mops soak it up and hold it in the bore longer, giving chemicals time to work. They're also well-suited to applying wet compounds—whether that's bore paste, copper removers, or other treatment products—giving you better control and coverage than a patch would allow.

These fit the standard jag size for 35-38 caliber rifles, so make sure you're matching them to your bore diameter before checkout. At twelve per pack, they're affordable enough to use fresh mops each cleaning session rather than stretching a single mop across multiple guns. Keep a pack in your range bag or cleaning kit.

Key Features

• Cotton construction absorbs solvents and oils effectively
• Natural scrubbing action removes powder fouling and carbon deposits
• Sized for 35-38 caliber rifle bores
• Twelve mops per pack—enough for multiple cleaning sessions
• Suitable for applying bore paste, compounds, and wet treatments

Specifications

Frequently Asked Questions

Will these bore mops fit my rifle?

These mops are sized for 35-38 caliber rifle bores. Confirm your rifle's caliber and bore diameter before purchasing to ensure proper fit on your cleaning jag.

What's the difference between a cotton mop and a patch?

Mops soak up and hold solvents longer than patches, making them better for wet cleaning and applying compounds. They also provide scrubbing action as you work them through the bore, helping remove fouling that patches might miss.

Can I use these with bore paste and cleaning compounds?

Yes. Cotton mops are well-suited to applying and working wet treatments like bore paste, copper removers, and similar compounds through the bore.

How many cleaning sessions will twelve mops cover?

That depends on how often you clean and how many guns you maintain. With a dozen mops, you can use fresh ones per cleaning session rather than reusing the same fouled mop across multiple guns or shooting days.