Re: .22 LR ballistics
A couple of thoughts,
I ran your info through my ballistics program, and got pretty much the same moa come ups you did (wihin .5moa). My program has the bc listed as .145.
I know that 1050 is the mfg listed muzzle velocity, but are you shooting through a chrony? if not, post what barrel length you are shooting them from and ill run out and hammer off a few rounds [img]/ubbthreads/images/graemlins/grin.gif[/img] Ive got data for 26" barrel for this bullet, but most are shooting shorter.
oh, and a lot of the s&bs are 1/3moa, I don't know about your particular model, but something to think about.
ive shot 22lr to 400yds, and even with a calculated bc, measured mv, and real time atmospherics, with a bullet ive never shot past 100, im happy if the program gets within 1 moa, especially past 250.
Without a measured mv, you are really kinda shooting in the dark.