Just a friendly heads-up that WD40 isn't the best choice for long-term rust prevention, especially on rust-blued steel. I've tested several products at work using a salt-fog chamber (per ASTM B-117, except over longer periods) and WD40 does not perform as well as most of the dedicated gun protectants. Birchwood Casey's Shield (Barricade), CorrosionX, Clenzoil, and RemOil all last longer and prevent rust better than WD40. Boesheild T9 worked very well as a rust preventive too, but it was formulated for airplane parts, not guns, so I'm not sure how it affects bluing or wood finishes. WD40 was designed to penetrate small crevices, displace water instantly, and lubricate -- which it does quite well -- but it was not designed to leave the durable film required to protect blued steel over time. I haven't yet done enough side-by-side controlled testing to definitively determine what product is best, but it's definitely not WD40. the product has its loyalists, and I use it myself for many things, but I would not rely on it to protect my valuable firearms.