Seeing as how you are the one with permission to hunt it he may as well get over it.
I wouldn't worry about hurting his feelings. Just lay it out on the table. You worked hard to get permission to hunt this property and he didn't. You can hunt it any way that you see fit.
Friend: Why do you hunt this property so much.
You: Because there are a good number of deer here and my chances of success are very high.
Friend: Yeah but you hunting it so much may prevent me from getting a good shot on a good buck.
You: Well, would you like some cheese and crackers to go with that wine? Oh, I think I here the wambulance coming to take you away.
Waa
aaaaaaaaa..... Waa
aaaaaaaaa!