RE: Hunting: Oil or No Oil?
There are very few places I put any oil on a bolt action rifle. One is a few drops inside the bolt body on the main spring, a tiny dot of high pressure grease on the cocking cam at the back of the bolt and only if it needs it for smooth operation.
Outside of that there are no places on a bolt action rifle that require any oil other than a very light coating on exposed surfaces as a rust preventative.
Now for semi autos there are places that do require a small ammount of oil or grease for good function. Such as on the action return spring, some bolt assemblies and the frame rails. Auto 5's must have the magazine tube shiny clean and lubed with light oil for it to function.
The big problem with gun oils is that soooooooooo many people use waaaaaaaaay too much oil on their guns and they don't clean the internals often enough. Too much oil is far far worse than using absolutely none at all because it attracts dirt, lint, dust, powder residue, unburnt powder, etc... and will cause the metal parts to wear much much quicker.