Had one and returned it, could not get it to stay zeroed in. Don't know if it was the cheap scope of the rifle itself, but after sitting over night, I had to zero it all over again so I returned it for a refund. Then bought a Benjamin 392 which shoots almost as good as a match grade rifle. Oh, and the reason yours is so loud is because of all the oil in it, once that gets blown out and burns away it will quiet down some - its known as dieseling where the high compression actually causes the oil to ignite. Shot it after dark and you will see a small flame come out the muzzle !