Because of the nature of the PCP power plant I suggest you search the net and look for air gun repair or air gun tune-up. There are shops that tune up air rifles and modify them.
No
It all depends on the rifle, pellet and power source.
A .177 caliber air rifle has very little recoil.
.177 airguns in india
No
Ask a gunsmith.
No they won't fit. If you force it, it will ruin the rifle.
You mean What is the best PELLETS for an air rifle. This all depends on the current rifle you own. You can not use .22 caliber pellets in a .177 caliber rifle or vise versa. As for individual calibers them it's really up to you. .177 is more common, but I prefer the .22 because it is larger and has more knock down power. I even own a .25 caliber for hunting. Match rifles use .177 caliber But unless you plan to own a $600 to $2000 match air rifle I wouldn't lets that influence me to select a .177. As the calibers get bigger the pellets get bigger. Bigger pellets fly slower but fly straighter and hit harder. .177 pellets travel very fast but are more influenced by crosswind. Beeman actually makes a interchangeable barrel rifle, one is .177 and the other is .22. It's the model RS2 at around $135 it's gives you the choice of both barrels. I'm not trying to sell you on it just letting you know what is available.
It all depends on the power plant inside the gun or rifle. They can be as slow as 150 FPS (Feet Per second) up to 1,500 FPS when fired from a high powered air rifle.
Well, the .22 is bigger than a .177, but the "strength" depends on the action of the air rifle that shoots them. Certainly the .22 will have more hitting power assuming that the pellets are traveling at the same speed.
This is a .177 pellet rifle.
If you are serious about air rifle .177 competition then there are several to choose from (See the link below) But I would select one of the Feinwerkbau P700 models.