Zero distance for squirrel hunting?

depends on the velocity .. for an average airgun speed of 900 and average sight height, around 18-21y zero will give the longest effective 'point blank' on nutters ... in other words you put the hairs dead on and it will hit within 1/2" or so between ~15-45 yards .. then with shots outside that you compensate, generally longer you hold just above and it will take you to ~55 .. thats yor 'no guesswork' range .. plenty for most any squirrel situation unless your just playing around ... 100y shots on squirrels are unecessary as they dont spook to well under 50 usually ...
 
If you use apex zero, then you only have hold over to deal with, rather than hold over, hold under and hold over. Keeps it mo' simple.

+1 /\ . Determine your max and minimum distance averages to your quarry , then determine your projectile ballistics average in that range, then do what JimNM says, use your apex zero, It will be very easy to do a reticle adjustment and take down your target.

Patrick
 
If you use apex zero, then you only have hold over to deal with, rather than hold over, hold under and hold over. Keeps it mo' simple.


I use a distance that puts my apex 1/4" over the zero. This way I can get a 1/2"kill zone without any adjustments. For example:

Cricket Compact .177 10.34@905 and scope ht of 2" - Zero at 20yds puts my apex at 28-29yds at which point it is .26" high. At 16 yds it is .25" low and at 43yds it is .23" low. This gives me a center cross hold between 16 and 43yds. Outside this range I have to use a holdover.

Beeman Chief .177 with 12.5NSA at 975 = 13-46yd center hold 1/2" kill zone.

This way if I'm stalking I just make sure I'm between about 15 and 45yds and I don't have to worry about "calculating" or dialing while the bushytail is running thru the trees. When he stops just long enough, he's dead.
 
It all depends on your projectile speed, BC, shooting lane distance and depth or the distance range you would like to not correct for drop and lastly scope height. Plug al that info into ballistic calculator and find a combo works best for you.


Or the easy answer is zero at the far end of your shooting lane and everything else is a bit lower. 
 
depends on the velocity .. for an average airgun speed of 900 and average sight height, around 18-21y zero will give the longest effective 'point blank' on nutters ... in other words you put the hairs dead on and it will hit within 1/2" or so between ~15-45 yards .. then with shots outside that you compensate, generally longer you hold just above and it will take you to ~55 .. thats yor 'no guesswork' range .. plenty for most any squirrel situation unless your just playing around ... 100y shots on squirrels are unecessary as they dont spook to well under 50 usually ...

What dizzums said. I zero my .22 avenger at 21 yards
 
Somebody else already said this but I zero my airguns so that the rise is no more than 1/4 inch after the first crossing around 15 yards. On my Prod, that results in a zero of 28 yards. So I don't have to think about where the pellet will impact until close to 35 yards. My 25 caliber Avenger is zero'd at 36 yards so it is good out to a bit beyond 40. I shoot both, usually, at 33 yards when zeroing them but I know (from chairgun) where the pellet should land at that distance. For the Prod it should be below the point of aim and the Avenger should be above, slightly.

I also shoot groups from 10 to 33 yards at 5 yard intervals to verify chairgun. Then I put a sticky label inside the back scope cap so I have an easy quick reference if I want to look at it. I print them on my laser printer on special paper with the circle already cut out. I don't trust the Hawke scope on the Prod to do any dialing with it but I added the clicks up or down on the sticky label on the Avenger. So I have a quick reference if I want to click away the trajectory changes. The West Hunter 4-16 on my Avenger seems like it moves pretty reliably.