That's a Bushnell Nitro 6-24x50 : https://www.opticswarehouse.co.uk/bu...a-rifle-scopes
Making a mockery of growing old gracefully since I retired
I have always set the scope up using a plumb line.
Very accurate if used correctly.
I never use a level on my scopes, but only because i dont feel the need.
On the other habnd though I see so many shooters canting the rifle, so a level would help them.
A "cant" at fixed range is fine but if you shoot a varying ranges then a "cant" is bad for accuracy.
Depends on the individual, if they help then use them.
VAYA CON DIOS