I like keeping a can of aerosol gun oil/lube in my range bag. I greatly prefer the aerosol for ease of application at the range. Rem Oil has been what I have been using for years, but it is getting hard to find and there may be something better out there. There are lots of aerosol CLPs, but being a 3 in 1 do they have as good of lubricating properties as a gun "oil"? If you keep an aerosol product in your range bag, what is it?