During deer season, I like to apply a unscented oil to my rifle when I come in from the woods. I know it probably doesn't work as well as some of the real gun oils such as Break-Free and Rust Prevent, but they all leave a game spooking scent on my gun. I have noticed that a couple of the unscented gun oils on the market list the only ingredient in them is 100% mineral oil. Is this the same "mineral oil" that is available in the laxative department at the pharmacy. I know that the mineral oil at the pharmacy says it is odorless and tasteless. I was just wondering if I could save some money by getting the big bottle at the pharmacy or do I need to continue buying the little overpriced three and four ounce bottle of unscented gun oil. I only use the unscented oil during hunting season and apply one of the "good" gun oils when I store my guns away till next season. Thanks for any comments back.