I'm just kind of curious and not directing this at anyone but I have been using Hopps#9 to clean with for about 30 years without any problems. It isn't the new Hopps#9 BP solvent and it doesn't say nitro solvent either. Just the plain old Hopps#9 solvent(petroleum based) used to clean all guns and is a bore cleaner.
Anyway to the question, how many people that say you can't use it have actually tried to use it and it didn't do the job for them? Could it be like the old adage that you can only use dead soft lead in a muzzle loader? I'm not advocating that people should run out and use it instead of what they are doing. Use what works for you. I started using it before there was internet to speak of so I didn't know any better. A few years ago I started using water and started seeing some rust show up so I went back. I probably didn't dry it as good as I thought but Hopps worked for me so I went back.
Anyway to the question, how many people that say you can't use it have actually tried to use it and it didn't do the job for them? Could it be like the old adage that you can only use dead soft lead in a muzzle loader? I'm not advocating that people should run out and use it instead of what they are doing. Use what works for you. I started using it before there was internet to speak of so I didn't know any better. A few years ago I started using water and started seeing some rust show up so I went back. I probably didn't dry it as good as I thought but Hopps worked for me so I went back.