Your first problem is locating a schematic for the rifle. I suggest you contact Air-Arms at the link below and ask if they could send you one. The next problem is locating a Spring compressor in order to install the new spring. (Not Easy) Spring compressors are not easy to locate.
you may want to have a Air gun shop do the repairs for you. I would look up "air gun repair" on the web and find someone near you to repair the rifle. Or see the #2 link below.
See the link below. It may help you.
Best left to a trained professional
I would contact Gamo directly for the best answer. See the link below. You do mean "GAMO" not Gamco
Here is the link (Below) for Air arms. I suggest you ask them directly.
By turning around its arms by wind force (= directed air pressure)
It shouldn't be a problem. In fact Beeman and a few other companies make dual caliber rifles , Interchangeable barrels in .177 and .22, for some of there models.
The major air rifle manufacturers are Gamo, Crosman, Benjamin, UTG, Daisy, RWS, Beeman, Mendoza, King Arms, Hornady, Beeman, Air Arms, Air Venturi, etcetera.
The Shamal was not Air Arms first spring rifleIt was their first pre-charged air rifle and a very good oneValue greatly depends on condition, type of stock and to whether the rifle is regulated or notHence value range £180 to £400
Extending her arms creates greater air resistance, causing a greater amount of force slowing her down. Crossing her arms reduced this air resistance, lessening the force slowing her down.
It's were you have your arms in a v shape in the air and then there is a low v you do the same thing but you have your arms low.
Diana made over a dozen different "Air Rifles."
What is the recommended air change for a toilet?