Here is my take on the gun oil or protectant and it giving you away. If they smell your gun oil, they already smelt you! While we all try and eliminate our scent and more importantly its impact on the game we chase, their is no way to be 100% scent free.

I do however use a drilube formula for my action, which doesn' t smell or leave the oil film. I can' t recall the name brand but remmington makes one as well. However you can' t use this on your gun as a protectant.