Why wouldn't Mobil 1 work for your rifle as a really good bore lubricant? It withstands high temperature is not mineral oil based therefore contains no sulphur. Even at 4.50 a quart its still way cheaper then conventional mineral based oil by a wide margin .What would be wrong with using it?
Dad gone OEH, you going senile? I would say mobile one is very, very heavy lube for guns. Not near as light as rem oil. Better clean it out real good before that cold bore shot.