Shooting out past 800 yards depends on a lot of factors like the ammo you are using, environmental conditions, the rifle you are using, and handful of other factors. Trying to do it with a .22LR makes it much more difficult. This Primary Arms 6 x 32 mm Rifle Scope is designed for use with .22LR chambered rifles, if you are looking at shooting that far I recommend you use another scope that gives you a little more adjustability and magnification. Here are some how to guides that may help you decide what scope would be best for you.
https://www.opticsplanet.com/howto/how-to-riflescopes.html