I've used eds red exclusively but for one bout of copper fouling removal for 15 years at least. Haven't come up short for rifle, handgun or shotty in that time so I have no need for the nitro slovent.

While checking to see what solvents remained in my cleaning box, prior to re-ordering, I came across several of the small plastic bottles of nitro-solvent.

I've never actually used it in the past.

Since I made up my own Ed's Red, I now know what it looks like - it looks like Ed's Red, but smells different.

Is it worth keeping ?

Anyone still using it to brush rifle bores ?

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I think any person who ever bought a first firearm bought a bottle of nitro Solvent. I think every one of those bottles is somewhere on some shelf one or two  applications less by volume.