Best Bore Cleaners For Copper Fouling

Updated July 24, 2022.

Given enough time, copper fouling deposits in the bore and kills the accuracy of the rifle.

To get rid of this copper fouling you need to clean the bore of the rifle frequently.

Particularly if you’re required to shoot regularly, then the slightest inaccuracy can be a great concern for your performance.

We see a variety of products out there that help you clean the bore, including a copper cleaning solvent and a foaming bore cleaner.

Like most rifle owners, you might also be worried about copper fouling on your rifle.

In this document we look at the current market and give our thoughts to answer the question “What is the best bore cleaner for copper fouling?|

We hope this will help those swaying individuals to make the right decision.

However, if you are running out of time to read this whole article, then you can check Hoppe’s No. 9 Gun Bore Cleaner on Amazon as we selected it as the best copper solvent for gun cleaning. 


Best bore cleaner for copper fouling: Quick review


 HOPPE'S No. 9 Gun Bore Cleaner
  • Our Rating: 4.9/5
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Sweets 7.62 Solvent
  • Our Rating: 4.8/5
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Bore Tech Eliminator Bore Cleaner
  • Our Rating: 4.8/5
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Bore Tech Cu+2 Copper Remover
  • Our Rating: 4.8/5
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Pro Shot 8-Ounce Copper Solvent IV
  • Our Rating: 4.9/5
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 Hoppes M-Pro Gun Cleaner
  • Our Rating: 4.8/5
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Wipe Out 5oz Bore Cleaner
  • Our Rating: 4.5/5
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Best bore cleaner for copper fouling

1. HOPPE’S No. 9 Traditional Gun Bore Cleaner

Since 1903 Hoppe’s No. 9 has gained so much popularity among the gun owners.

Whether be it a pistol, rifles or shotgun, No. 9 superbly cleans everything on the guns. No. 9 is known as best for its copper fouling removing ability.

Over the period of time other gun cleaners came out but no one could gain trust like Hoppe’s No. 9 Traditional Cleaner.

Various world champions and ambassadors trusted on Hoppe’s for long.

We’ve reviewed many users’ feedback and came to the conclusion that Hoppe’s No. 9 is one of the best bore cleaners for copper fouling.  

However, No. 9 is not only manufactured for bore cleaning but also for all other parts of the gun.

You can clean all kinds of parts of your guns with this beast.


  • Works well for all guns
  • Superbly removes copper fouling, brass mark, powder residue, and carbon.
  • Prevents metal from rusting
  • Help keep accuracy
  • Extra long-lasting


  • No brush included
  • The smell is not so great

Key Features:

  • Trusted since 1903
  • Child protection cap
  • Deeply penetrates inside the bore
  • One (1) 32-ounce bottle included
  • Ultra potent
  • Safe for all
  • Easy to use

2. Sweets 7.62 Solvent

Sweets 7.62 Solvent has got the ability to remove heavy copper quickly.

It is amazingly fast and can remove copper within just 15 minutes.

For an old rifle, you may be required to clean the bore frequently until the blue discoloring stop coming from it.

It works great in case of removing heavy copper. If you got an old rifle that deposits heavy copper fouling then you can use it.

Sweets 7.62 doesn’t harm to steel. It’s non-toxic and contains 5% ammonia.

We’ve found positive feedback from the users regarding Sweet 7.62.

Most of them were impressed by its super fast copper cleaning ability and regarded Sweets 7.62 Solvent as the best copper solvent for gun cleaning.

Sweets 7.62 Solvent smells like ammonia so it’s better to use outside of your house.

You could use it in the garage to keep away your child from the nose burning smell coming out of it.

Another problem we found, if you leave the solvent within the barrel for more than 15 minutes or let it dry out there, it may harm the barrel.

So you should clean the barrel after using the solvent. Don’t leave the solvent inside of the barrel to soak.


  • It can remove heavy copper
  • Quickly removes copper fouling from jacketed bullets
  • A hole on center cap controls the release of solvents
  • Affordable


  • Smells like ammonia.
  • It can damage barrel if you leave solvent for more than 15 minutes

Key Features:

  • It contains 5% ammonia
  • Removes copper fouling, powder residue, corrosive salt and acid
  • Easy to use

3. Bore Tech Eliminator Bore Cleaner

Bore Tech Eliminator is a well-performed gun cleaning solvent. Though its name doesn’t include the word “Copper Remover” but it works great when it comes to copper fouling dissolving.

Because of its copper removing ability, some users placed it well ahead of Hoppe’s No. 9, Bore Tech Copper Remover and Sweet 7.62.

Another great benefit of using this product is that it will not harm the barrel if you left to soak the solvent inside of the bore.

It also contains rust preventative that protects future rust being caught to the barrel.

Overall this is a great copper solvent for gun cleaning that deserved to be in our case.

Most of the users provided positive reviews regarding this product.

However, this product’s price is higher than the same kind of products available on the market.

But that should not be a major problem if performs well.


  • Ammonia free and barrel safe
  • The solvent can be left to dry out but will not harm the barrel
  • Odorless
  • Positive feedback from users


  • Price is comparatively higher than other similar products

Key Features:

  • Ammonia free bore cleaner
  • Rust preventative
  • Fast-acting and barrel safe

4. Bore Tech Cu+2 Copper Remover

Bore Tech Cu+2 Copper Remover

Bore Tech Cu+2 Copper Remover, 16 oz doesn’t come with ammonia making it safer, especially for the barrel, than any other ammonia-based bore cleaner.

It patented and radical technology instantaneously removes copper fouling from the bore.

Its smell is not offensive so you can use it inside of your house.

It’s ammonia-free and hasn’t got any toxic or harmful chemicals, so you don’t need to go to the garage or outside of the house for using it.

Bore Tech Copper Remover helps increase accuracy by removing copper fouling that grows over the period of time. 

This also prevents rust from being caught on the gun. It removes copper faster than a traditional ammonia-based cleaner.


  • Ammonia free and barrel safe
  • Removes copper faster than ammonia-based gun cleaning solvent
  • No odor
  • The solvent can be left to dry out but will not harm the barrel


  • Comparatively costlier than similar products

Key Features:

  • Easily breaks down copper fouling
  • Contains short-term rust preventative
  • Toxic-free and barrel safe
  • Ammonia free

5. Pro Shot Products 8-Ounce Copper Solvent IV

Pro Shot 8-Ounce Copper Solvent IV

Pro Shot Products is an ammonia-based product but produces low odor. It has been designed to remove heavy copper.

According to some users, this copper cleaning solvent performs better than other renowned products.

Its new innovative formula effectively charged iron that has an affinity for copper.

Pro Shot Copper Solvent IV is smarter, environmentally friendly, and safe to use.

It contains a very lower amount of ammonia. It has included rust and corrosion protective ingredients.

Pro Shot Products is manufactured in the USA. So, all the standards are maintained during manufacturing.

If you want to try a new solvent or bored with other popular solvents, and then Pro-Shot could be a very good option for you. Overall, this is one of the best gun cleaning solvents.


  • Ammonia-based but produces very low odor.
  • Environmentally safe
  • Not harmful for barrel


  • Less effective for carbon removing

Key Features:

  • It’s liquid
  • Ammonia solvent
  • No offensive odor
  • Made in the USA
  • New innovative formula

6. M-Pro 7 Copper Remover

M-pro 7 Copper Remover is probably one of the best copper cleaning solvents for the gun right now on the market.

It acquired huge popularity among the users. This beast works perfectly well, particularly when it comes to copper cleaning.

M-pro 7 is ammonia and odor-free which will give you the opportunity to use it inside of your house. It is non-hazardous, non-toxic, and non-flammable which makes it easy to use.

It has the ability to removes heavy copper fouling as fast as possible. Also, this works well for an old rifle that never cleaned before. Its ammonia-free solvent is not harmful to the barrel.

Overall this is a great product with a low price you can easily rely on.


  • Odorless
  • It can dissolve heavy copper even from an old gun
  • Very cheap


  • Only for bore steel

Key Features:

  • Ammonia and odor-free
  • Non-toxic, non-flammable
  • Faster than ammonia-based cleaner
  • Safe for bore
  • Improves accuracy
  • Dissolve copper fouling

7. Wipe Out 5oz Bore Cleaner

Wipe Out 5oz Bore Cleaner

Wipe Out 5oz Bore Cleaner is a foaming gun cleaner.

It removes copper fouling, powder residue, and metal debris from the bore at the shortest possible time.

Like other ammonia-based solvents, Wipe Out doesn’t contain any harmful materials.

It doesn’t harm barrel so you can use it any time. It doesn’t produce any bad odor, so you can use it inside your house.

Overall this is a good product with positive customer feedback.

If you don’t want to use an ammonia-based gun solvent or other gun cleaners then this could be the best option for you.


  • Safe and not harmful
  • Removes copper fouling fast
  • No bad odor


  • Push-button produces excessive foam instantly

Key Features:

  • Foaming cleaner
  • Toxic-free
  • Ammonia free

How does copper fouling affect accuracy?

Some guns perform well even if there is a cooper fouling on the barrel.

But this may keep accuracy at a certain period of time.

Moderate and excessive copper definitely affects the accuracy of the gun.

After every single shooting, copper accumulates inside of the barrel.

So, it’s better to clean copper fouling after every event of shootings to get the maximum performance.

There are numerous gun cleaning solvent, copper removers on the market you can easily clean your gun in the shortest possible time by using them.   

What does copper fouling look likes?

Copper is a piece of metal that deposits inside of the barrel after every single shooting.

It accumulates over the period of time affecting accuracy.

When you clean your bore with cleaning solvent it came out in bluish color.

Copper fouling attracts moisture which may result in rust inside of the bore damaging the steel.

How often a rifle should be cleaned?

It depends on the rifle and the person using it. We recommend to clean after every single event of shooting.

Metal debris deposits in the barrel after every single time you shoot. If you leave it, it attracts moisture and rust.

We get it. Cleaning your guns after every session isn’t really the sexy thing we talk about with our buddies.

But if you want to maintain a certain level of accuracy and “mint-ness”, having a maintenance plan in place is the way to go.

Best copper solvent gun for cleaning buying guide


Although gun cleaning solvent is not expensive, you should still compare prices with other similar products.

If you find a product that performs well and at the same time costs lower, then you should purchase that.

There’s numerous cheap solvent out there you’ve to just find the right one.


Some ammonia-based gun cleaning solvents out there produce a nose-burning odor.

If you want to work inside your house then you should pick the best non-toxic gun cleaning solvent that doesn’t produce an offensive odor.

So before purchasing any gun bore cleaning solvent, just be sure that how offensive odor it normally produces.   

How quickly it starts working

It’s important to know how quickly your next gun cleaning solvent will perform.

Some cleaning solvents clean within a few minutes and some take more time.

If you don’t have enough time to clean then you should purchase one that works with a short time.

Is it harmful to the barrel?

Some ammonia-based cleaning solvent can damage your barrel if you let the solvent to soak on the bore or keep more than 15 minutes.

If you want to soak solvent on the bore or don’t have enough time to dry the bore then you should go for ammonia-free solvent.

Bore copper cleaner or gun cleaning solvent?

There are different types of gun cleaner ranging from gun leaning oil to bore copper cleaning solvent.

For bore copper cleaning purchase a bore cleaner. For cleaning gun oil may be best.

So before purchasing any gun cleaner, you should focus on your uses.

Final Thoughts

Hoppe’s No. 9 has been satisfying customers since 1903.

Solvent 7.62 is known as best for its instant copper removing ability and Bore Tech Eliminator provides wonderful customer feedback.

Our number one recommendation for bore cleaners is Hoppe’s No. 9 Gun Bore Cleaning Solvent.

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