Wow, the group is all over the target. I first off think the ar15 is too light of a cartridge for white tail in Texas. Minimum would be 300 BO. If you are going to hunt deer in Texas, you should probably consider .308 or AR10 for a confident kill round.

That being said, I know some people think they are great marksmen and can do a kill shot with a 22 caliber bullet, but I don't think that is the way to go.