Chances are it's the things you say and the way you act that turn girls off. I don't know you, haven't talked to you, haven't been around you, but 9 times out of 10 your personality is what they really pay attention to. It constantly amazes me how many guys worry about the way they look more than how they present themselves to people in general. If people had a little more confidence in their personalities they would have a lot less trouble approaching and dating women (or girls as the case may be).
I doubt the fact that you're a 'country boy' or the fact that you hunt turn girls off. I was raised in the country and have hunted and fished since before I can remember. I generally have no trouble with girls.
That being the case, back to the issue of personality... A few questions to start off with;
Are you cocky?
Do you come off as self-centered?
Do you talk about yourself a lot?
How do you appraoch the girls you like?
Are you shy?
Do you talk a lot or are you more of a listener?
Are you funny?
Are you witty or are you more of the class-clown type?
Do you flirt a lot?
If so, do you flirt with many different girls or just specific ones?
When you compliment a girl, are the compliments sincere or do they come off feeling like lines from a movie?
Do you try to be cool by using pick-up lines?
If so, do you say them jokingly or sincerely?
I could go on, but until you fill us in a bit more I can't help. I won't call myself an expert, far from it. But when it comes to girls I do know a thing or two...
Let us know a bit more and I may be able to help you out a bit.