I have used it ever since TC came out with it, I use it only in my PRB guns when I talked to the tech at TC he said its fine for short term and even though some people here do not believe in seasoning I know better for my own experance. I also know that if use for long term storage that it dries and sets up in the pours of the metal and will then build until it spoils the accuracy of the gun. I went through some *ell to get that hawkens back to shooting 2.5 to 3 inch groups again,Know if I know I am going to be laid up by an operation or such for a long time I do it right once was enough. Lee