3" high at 25 yards is too high. Most likely it's going to put you way high at 50, and probably at 100 as well, With your load, you should be shooting close to dead on at 25 yards. If you absolutely don't have time to shoot again before hunting, I would do one of 2 things:
1. Adjust your scope 2" down. Depending on if you have a 1/4" or 1/2" adjustments on your scope, you'll need to come down quite a few clicks. It's hard to say exactly how many however, because the scope adjustment clicks are for at 100 yards, not 25.
2. The other option is to just aim low if the deer is 100 yards or less away. When I mean low, I mean pretty low- like aiming at the bottom of the heart. That way, if the bullet shoots high (which it probably will be) it will still hit the lungs or spine. I have no idea where it's going to be past 100 yards.