I don't buy the stuff by brand name, just by what I'm looking for-I like "Garand Grease", whenever I'm out I just go to whatever shop I drive by and ask for some calling it that and they've all got something along the lines of the same stuff. It comes out really nice, and certainly serves its purpose to preserve your gun, I've used it in a pinch to lube a bolt gun for use, it was kind of sticky (not metal/metal friction, just thick goo in the traces), but it made my bolt virtually silent on cycling, it must have been REALLY filling all the gaps in there...a penetrating oil it isn't though, it only goes where you put it, so keep that in mind when you're using it for storage or otherwise.

Like I said in another thread, my granddad used to pack his guns plumb full of automotive bearing grease (filling the bbl full, and most of the action, I don't know that I'd really recommend that, but I'm sure it would get the job done, always did for him, it would just take a day and half to get it filled in, and longer to get it out.