Top or action has a dove tail to hold rings. If your rifle has no dove tail it may need scope bases, I am almost positive that all 66's had dovetail tops.
depends on the rifle and the scope. Most scopes will use 1 inch rings for that type rifle.
Answer: The Mossberg Rifle 45A alone is currently (2009) valued at around $200 or a bit more in very good to excellent condition, however, the "S" prefix denotes that it was sold with a scope. The No. 7 Mossberg scope and bases currently run around $200.00 - 350.00 or more depending on model and condition.
50-500 usd
50-150 usd
There are 2 grooves cut into the top of the receiver to except matching bases and rings to mount a scope on top of your .22 caliber rifle.
50-160
Here's the basics on mounting the scope on a rifle. ( Assuming you have a scope mount on the rifle.) 1. Place the bottom half of the scope rings on the rifle first (Without the scope attached.) 2. Place the scope on the bottom half of the rings and adjust the scope mounts to comfortably fit your eye. When adjusted, tighten down the bottom half of scope rings to the rifle mount. ( The scope should have one cross hair adjustment at the top and one on the right.) 3. Place the scope in the rings and then put the top half of the rings on. Tighten them down, but not VICE tight, just loose. You still want to move the scope some. 4. Look through the scope and align the cross hairs level with the rifle barrel. The Vertical line should be straight up and down at a right angle with the barrel. 5. when you have the scope adjusted to your eye and the barrel of the rifle, tighten the top scope rings in a crisscross pattern a little at a time. Don't vice one down then go to the next one. Do it a few turns on each one until they are tight. A final note. If you have a small screw hole and screw at the back end of the scope mount (on the rifle) you may want to place the rear scope ring against that screw. This is a scope stop. This will keep the scope from moving back from the recoil. Some scope mounts have a long pad at the rear of the scope mount that acts the same way. It's usually necessary on high powered rifles not 22's.
50mm at least.I have found that with a 50mm objective you will need a minimum of high scope rings.Most medium hight scope rings will not give you the clearance needed for a 50mm scope objective.
Depends on the condtion of the rifle. Collectors values on the Mossbergs are modest, and might range from $75 to $275.
the scope is not what you want to worry about, it is the scope mounting rings find rings that will fit to your toy and the scope will mount right on , do not expect the toy to shoot dead on because it is a toy not a real weapon . don't shoot your eye out or anyone Else's eye.
You are asking this question in the Shotgun category, so I must say that you don't scope a shotgun. Here's the basics on mounting the scope on a rifle. ( Assuming you have a scope mount on the rifle.) 1. Place the bottom half of the scope rings on the rifle first (Without the scope attached.) 2. Place the scope on the bottom half of the rings and adjust the scope mounts to comfortably fit your eye. When adjusted, tighten down the bottom half of scope rings to the rifle mount. ( The scope should have one cross hair adjustment at the top and one on the right.) 3. Place the scope in the rings and then put the top half of the rings on. Tighten them down, but not VICE tight, just loose. You still want to move the scope some. 4. Look through the scope and align the cross hairs level with the rifle barrel. The Vertical line should be straight up and down at a right angle with the barrel. 5. when you have the scope adjusted to your eye and the barrel of the rifle, tighten the top scope rings in a crisscross pattern a little at a time. Don't vice one down then go to the next one. Do it a few turns on each one until they are tight. A final note. If you have a small screw hole and screw at the back end of the scope mount (on the rifle) you may want to place the rear scope ring against that screw. This is a scope stop. This will keep the scope from moving back from the recoil. Some scope mounts have a long pad at the rear of the scope mount that acts the same way. It's usually necessary on high powered rifles not 22's. You most certainly can and should scope your shotguns as long as your state allows the use of scopes on them. I have scopes on all of my shotguns, and especially my slug gun!