I check zero frequently, I can even do it a couple of hours before the deer show up. I will be sitting at my shooting range, and the deer aren't bothered by my shooting. I'd check the groups looking through glass to avoid walking down there. I'll probably get a BOG death grip if I go through with this.

I know shooting squirrels is different, but braining them at 70 yards with a less accurate rifle and cheaper glass has demonstrated to me that I can do it. I posted a thread last year on ar15.com about blasting squirrels at 100 yards. It was very similar to this thread, a lot of hate with some useful info sprinkled in lol. Haven't done 100 yards yet, but I have a setup that can do it if the situation every arises.