I am trying to use Hawke Optics software to callibrate the aim points on my reticle. The software gives a standard preset of 1051 ft/s for .22LR subs. However, some data I have been reading recently gives a muzzle velocity of 1335 ft/s for Winchester Hollow Point .22LR sub rounds (which is the round I'm using), although it was published quite a long time ago.
Can anyone tell me which of these is correct?
(Or, if neither is correct, what is?)