Instruction: Evaluate the answerability of a question by analyzing the related document, outputting yes if the document contains information addressing the question, and no otherwise.

Input:
Question: will the squeegee engage and clean out the rifling? and will it remove copper?
Document: Bought 3 in multiple calibers, does a good job in getting the rifling clean, particularly in the rifles with a higher quality steel barrel, still some barrels required the use of solvent and brush to fully remove deposits in the grooves.
Squeeze from Remington: It does work when directions are followed. On the last pass with a liquid solvent or metal preservative, especially the latter, the squeegee does remove the bulk of the liquid, which is very important
I'm using two of these, in .22 and .38, for various pistols, revolvers, and .22 rifles, in conjunction with theRem Flex Rods with Fast Snap T-Handles. So far, it seems to work as advertised. The important thing to keep in mind is that this is a squeegee, not a bore scrubber. It won't remove heavy powder fouling or carbon deposits. For that, you really need to use a bore brush.
This product helps remove any excess oil or cleaner in the bore. Helps with cleaning your gun after shooting  at the range. I recommend this to my family and friends. You will need to have a standard cleaning rod to attach this squeege to in order to clean it.
It works like a squeegee on a window. Gets the excess oil out and it is easy to clean after use.
Then run this thing through it. Wipe it off and do it again. What your left with is a fairly dry and clean area ( with some solution maybe left in the grooves of the rifling).Its' definitely a good product and I would say great because it cuts down on waste, dries the bore and pretty easy to use. Why not perfect? Nothing is perfect in this world but this does what it claims to.
It doesn't take a lot of words to say how well these squeegees work. If you want to make sure your bore is clean and residue free before you run the oil patch through it, use a squeegee, available at Amazon, and maybe even at your local gunshop. I recommend it.
Wow! This squeegee leaves that barrel squeaky clean. If I wasn't so OCD about cleaning my barrels I could easily run this through once and be done. It certainly saves time and bore patches. I just mop the barrel with solvent, run the wire brush through it and drag this squeegee through once. Voil'a! (Please forgive my French). The 12ga. squeegee works equally well.
Cleaning my weapon barrel is much quicker with this. I shoot I then drop some oil or clp (currently use frog lube and/or seal one depends on what I grab)  while barrel is still warm. When I get home I run the brush a few passes the squeegee after the brush and a wet patch and I am done with the barrel. It comes out pretty clean.
These really work well once you have wet the internal surface of the barrel with the cleaning agent of your choice. But don't try to push them through; that will not work. Drop the brass rod through the barrel and then pull the squeegee through. I then wipe the squeegee off and repeat a time or two to make certain everything is out.
Answer: yes