Found a very informative topic about the best zero ranges PBR of .177 = 8.8 to 35 meters (9.7 to 38.3 yards) - PBR = point blank range.
.22 cal PBR = 6.3 to 28.5 meters (6.9 to 31.1 yards).
Basics are that if you were to zero to say 30 meters in .22 with a sub 12 ft/lb "ish" rifle you would run the risk of being out of your kill zone from 11.5 meters to 25.5 meters due to the pellets parabolic trajectory leaving the 2.5 cm ( 1 inch) kill zone.
So does this mean if you zero pellet on pellet to 31 yards in .22, your rifle will also be pellet on pellet at 6.9 yards ? Also does the information say that the pellets flight path will stay within a 1 inch flight path to these distances.(kill zone)
If you go to the hunting life search engine and type in best zero range you can read it for yourselves.( airgun discussion thread)
A big thank you for this information to Si Pitterway.
Are any lads shooting to this rule please and any info back.
I am shooting with the HW 100 KT .177 and the HW 100 ks .22 so will be interesting.
Edited by mark williams, 22 December 2014 - 08:24 am.