Description
A bronze bore brush is one of those cleaning tools that quietly does the heavy lifting, and Hoppe's has been making them for shotgunners longer than most of us have been shooting. This 1312P is sized specifically for 20 gauge bores, with wraparound phosphor bronze bristles that grab the fouling a patch alone will slide right past. The multi-directional scrubbing action works loose the lead, plastic wad residue, powder, and carbon that build up after a day of clays or a weekend chasing birds, and bronze is soft enough that it clears the gunk without harming your bore.
What the Hoppe's 1312P Handles in a 20 Gauge Bore
Soak the bore with your solvent of choice, wet the brush, and run it chamber to muzzle in full passes. Going all the way through before you reverse keeps the bristles from folding back on themselves, which is how brushes wear out early. A handful of passes, a few clean patches, and repeat until the patches come out looking clean. Pair it with Hoppe's No. 9 or any standard shotgun bore cleaner and it makes short work of a fouled barrel.
Why a 10 Pack of 1312P Brushes Just Makes Sense
Bore brushes are consumables. The bristles soften and splay with use, and copper-based solvents left sitting will eat at bronze over time, so keeping spares on hand means you never skip a proper cleaning because your one brush finally gave out. Buying the ten-pack sorts that out for a good long while, and it's handy if you shoot alongside family or run a cleaning bench for more than one 20 gauge.
The brush uses a 5/16-27 thread, the standard shotgun brush pitch, so it threads onto most shotgun cleaning rods. If you're running a standard universal rod, you'll want a shotgun adapter to make the connection. Measuring right around 4.9 inches, it's a straightforward, proven piece of kit that belongs in every 20 gauge owner's cleaning kit.
Key Specifications
- Manufacturer: Hoppe's
- Manufacturer Part Number: 1312P
- UPC: 026285513820
- Gauge: 20 Gauge
- Bristle Material: Phosphor Bronze
- Product Type: Bore Cleaning Brush
- Thread Pattern: 5/16-27
- Length: 4.9 in
- Quantity: 10 Pack
- Suitable For: Shotguns
What’s Included
- 10 Hoppe's 1312P phosphor bronze 20 gauge bore brushes
Frequently Asked Questions
Will the Hoppe's 1312P brush fit my 20 gauge cleaning rod?
It uses the standard 5/16-27 shotgun brush thread, so it threads directly onto most dedicated shotgun cleaning rods. If you're running a standard universal rod, you'll need a shotgun adapter to make the connection. Check your rod's thread before ordering if you're unsure.
Is a phosphor bronze brush safe to use in my shotgun bore?
Yes. Bronze is softer than the steel of your barrel, so it scrubs away lead, plastic, and carbon fouling without harming the bore. The general rule is to run full passes chamber to muzzle and not overdo it, since a brush that's visibly worn means you're scrubbing harder than you need to.
How do I get the most life out of these brushes?
Push the brush completely through the bore before reversing so the bristles don't fold and wear prematurely. After cleaning, rinse or spray the brush with a degreaser or brake cleaner to clear out the solvent, then let it dry. Avoid leaving copper-removing solvents on the bristles, as those chemicals eat at bronze over time.
Why does this come in a 10 pack?
Bore brushes are consumables that soften and splay with regular use, so the ten-pack keeps fresh spares on hand for every cleaning session. It's a smart buy if you shoot often, clean more than one 20 gauge, or just don't want to run out mid-cleaning.




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