See the link below for an explanation of the facility.
Well Yes and No. Let me explain. In the USA there is no limit on The power of an air rifle so a strong spring is used. In other countries, like Canada, there is a limit on the power an air rifle, so a different spring is used that produces less power. Normally you do not want to tamper with the design of an air rifle because it could cause damage to other parts of the rifle that may not be able to handle the change in design.
An Air Rifle is either a BB rifle or a pellet rifle. It uses air or gas to propel the projectile.
Could it fit? Yes. Good idea? No. Air rifles need a scope with a different internal design, since the recoil is different, and can be in a different direction. Scopes made for firearms may fail when attached to an air rifle.
A sporter air rifle and what?
No
Are you asking how do you swap and air tank on an air rifle, or swap for and air rifle? In most air rifles you put it on safe and swap out the tank by unscrewing it and replacing it.
can i ship air rifle to trinidad and what i need
A 4 x 12 x 40 works great. Just make sure you can adjust the parallax down to 10 meters (or less) and that the scope is air rifle rated. The recoil of some air rifles will destroy non rated scopes.
When you say Air Rifle you are referring to a pellet rifle not a firearm. At present there are no 300 Cal air rifle being made.
Only if the scope is designed for an air rifle. Because of the recoil being different on an air rifle than a firearms rifle. Air rifle scopes are made differently than firearms scopes. A firearms scope can break it's glass mounts if it is used on an air rifle.
Whether or not an air rifle is more powerful than a cross bow depends on the air rifle or cross bow. Generally a hunter's cross bow is more powerful than a child's bb gun. However, during the Napoleonic Wars, the Austrians had an extremely powerful repeating air rifle. It could shoot several hundred meters. Austrian solders armed with them could shoot Napoleon's solders from such a great distance that Napoleon's solders could do nothing about it. Eventually they ran out of bullets.
Marine Corps Air Facility Quantico was created in 1919.