You smear a very light bit of it across most of the patch & follow the instructions on the little tub it comes in.
I run a "smeared" patch through about 10 times, followed by a couple dry patches, followed by a couple CLP patches, maybe repeat a half-dozen or more times.
On a new-to-me Mosin in clearing out previous accumulated gunk, I'll brush it a bit ,too, AFTER removing the paste with patches.
One thing with the paste- do NOT keep going till you get a "clean" patch.
It's a mild abrasive, it can wear on the rifling with excessive use, and it will ALWAYS produce a blackened patch.
I'm totally mystified about why you're having so much of a bore issue with your gun.
I have three currently.
After doing the initial JB/brush/copper remover cleaning on acquisition, I just use the four or five Windex patches I've mentioned to you previously when I'm done with a shooting session, followed by a few CLP patches, followed by a dry patch.
I don't go back to those guns three times a week looking for dirty patches through the bores, I've never run more than 20 patches at the most through one at a single session, and I've never seen anybody have as much of an on-going struggle with a Mosin as you do.
One thing to consider- I've never in my life cleaned a bore on ANYTHING till it came out with an absolutely spotless white patch.
I'm not going to, either.
I patch till the patch only has traces of black on it & call it good.
There comes a point, which I think you've reached, where it's senseless to continue on.
I can get a "clean" patch with very minor traces of black carbon, then run a brush through, and the next patch will be quite dirty again.
The brush contributes.
I can get a clean patch, run the next one through with JB's & it'll come out absolutely black again.
I can continue on, depending on what I'm doing, for quite a while & still come out with "dirty" patches.
In doing that, I'm not cleaning the gun, I'm just creating my own endless cycle & there's simply no point.
I have guns I've gotten "mostly" clean (as opposed to spotlessly clean) for 40 years & their bores are fine today.
Mo, not trying to embarrass you, but really- your rifle has become an obsession for you.
That's neither necessary nor healthy.
Ease off on the thing.
Denis