10-100 usd
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.
Only way to know is to try.
3 to 9 magnification with a 50mm objective lens
$35.00
It is the width of the front (objective) lens in millimeters. A 50 mm objective is just that- 50mm, or just under 2 inches, across.
Brownells, Midway, even Amazon- but I would check with Ruger first for suggestions. Mounting a 50mm scope will be difficult due to lack of clearance- a 56mm will be VERY difficult. And not that you asked, but probably too much glass for a rifle that is not a high precision target rifle.
While anything is possible,why would you want to use a scope of that power and objective size on a .22 cal.rifle?If your receiver has a built in 3/8in receiver rail then you may be hard pressed to find rings of the significant height to mount a scope of that size.I would recommend that you get a scope of 4X power.That is all that is needed for the maximum affect range of a .22cal rifle.
I would think so, yes. A 4 or 4.5 power scope is a great magnification for beating the brush, and if it's anything like up here, shots from as close as you want to 100 meters will be a cinch. With a 50mm objective lens, you have great light gathering capacity and a good field of view, and you can dial up the power for longer shots.
As far as quality and durability vortex has Leupold and Nikon beat. Optics_----- That's all in how you see things .I have looked thru the vortex viper HS model VHS-4302 44mm,Leupold varx-3 2.5x10 50mm and Nikon Monarch. an apple to apple comparison. Vortex won in clarity but lacked slightly to the Leupold in low light clarity followed by Nikon. Very slight differences between all 3. Vortex around 380.00 us. Leupold comes in at 549.00 us, and Nikon at 479.00. for the money its Vortex, leupold then Nikon.
50MM Dollars.....
20-50
Being that the obj.is 50mm,I would put on a pair of 1in.high rings.