This information is the same for any scope.
1. Rest the rifle on a sand bag or other permanent stand.
2. Sight the scope on your target at 32 feet, the normal distance you plan to shoot.
3. Fire a test shot. Look through the scope and look where you were sighting verses where the pellet struck. DON'T MOVE THE RIFLE keep it sighted on the target.
4. Remove the scope caps on the scope adjustments knobs. Adjust the scope knob (on the right side) left. where as the cross-hairs are now aligned on the pellet hole. Now the scope is pointed at the new location.
5. realign the scope back on the target by moving the rifle. Now reload the rifle and fire another test shot. You should be closer or right on target.
Follow the same procedure until you are on target.
Remember you will never be on target with every shot. Cross-wind will always have an effect on the pellets path. If you are trying to do this with BB's, be advised BB's never fly as straight as pellets and the further the target is from the barrel he wider the BB pattern will be.
Theoretically, now that you have the scope sighted. for a particular distance, say 30 feet. remember that anytime you shoot at something closer than 15 feet your shot will be slightly below the target cross-hairs and anything further than 45 feet the shot will be slightly above the target cross-hairs.
It all depends on the model of the BB gun. There are over 300 different modal BB guns. Which one do you want to scope.
no
Pretty much outside the scope of a hobbyist
Sling, Bypod, Scope, Flash light, Laser.
The scope on the R73 is a fake scope. It really a see through Hopper. You can not replace it with a real scope. You have to use it to fill the gun with BB's.
It all depends on the scope rail. The scope is designed to fit on a metal rail. If the rail is plastic it will come loose while shooting.
Different type of recoil impulse
on top of the scope is the brightness and on/off switch. the top of that comes off when you twist it and the you put your batteries in there
What condition is it in?
For its intended use, a scope is not needed. You will spend more than it is worth to have one mounted after you buy it.
If its a BB Gun, Then Yes.
It all depends on what you want to do with it. Some add a bigger spring. Some add a scope. it's up to you.