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The whole idea behind Hoppe's No. 9 Foaming Bore Cleaner is to take the elbow grease out of barrel cleaning. You spray the foam straight into the bore from the chamber end, let it expand and cling to the walls, then walk away for 15 to 30 minutes while you wipe down the rest of the gun. When you come back, one or two patches usually do the trick. The foam is what makes the difference here since it sticks to the inside of the barrel instead of running straight through like a liquid solvent, so it stays in contact with fouling long enough to break it down.
The orange foam has a built-in effectiveness indicator, which is one of the more genuinely useful features on this stuff. It turns blue when it's lifting copper and black when it's pulling out powder and carbon residue. That takes the guesswork out of things. You're not wondering whether the barrel is clean, you can literally see it on the patch and in the foam. Guys who run milsurps and rough bores tend to appreciate that visual feedback, and it's handy for knowing when to hit it with a second application.
This is a solid pick for routine, after-range cleanup on rimfires, handguns, revolvers, and bolt guns. It shines on general fouling and does a respectable job on copper for most casual to moderate shooting. If you're a competitive shooter running a hot centerfire that fouls heavy, you might follow up with a dedicated copper remover, but for the vast majority of firearms this handles the job with minimal fuss. The 3 oz spray bottle is a nice size to keep in the cleaning kit or toss in a range bag.
A quick tip from experience: give the sprayer a firm, full push to get proper foam. A light or quick tap tends to come out more like a liquid. And if you're spraying from the breech, plug the muzzle with a patch so you don't foam up your bench.
Spray it into the bore from the chamber end and let it dwell for about 15 to 30 minutes. That gives the foam time to cling to the barrel walls and break down copper and powder fouling. When you come back, run a patch or two through and check the color to see what it pulled out.
The orange foam has a built-in indicator that changes color as it works. Blue means it's dissolving copper fouling, and black means it's lifting powder and carbon residue. It's a simple way to confirm the cleaner is doing its job and to gauge whether you need a second pass.
For routine cleanup after a range day, most folks get away with just a couple of patches and no brushing at all. If you're dealing with a heavily fouled or rough bore, a bronze brush and a second application will get you there. It handles the bulk of the work on its own for everyday maintenance.
It does a solid job on copper for most casual to moderate shooting and shows you the results with the blue color change. Hard-charging centerfires that foul heavily may still benefit from a dedicated copper remover as a follow-up. For handguns, rimfires, and general-use rifles, it covers copper and powder fouling nicely in one step.
| UPC | 026285009071 |
|---|---|
| Manufacturer | |
| Manufacturer Part Number | 907 |
| Product Type | Foam Cleaner |
| Quantity | 1 Can |
| Shipping Weight | 0.29 |
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