Argentine, you're much more likely to have success w/ a guide.. Yes, there are a lot of hogs in Texas but you run in to a couple of hurdles.. Usually, either:
1) the LO knows hogs are growing in numbers and popularity to hunt so they lease the land to a guide or..
2) the land is leased to deer hunters & they shoot the hogs as well
The likelihood that someone a) has a hog problem and b) has no problem w/ strangers on their property w/ firearms to hunt them is fairly small in my experience..
I really hate to do what I am about to do, because it will be very painful for you.