I grew up on the Texas coast fishing/flyfishing/hunting/bowhunting and also have a ranch near there, outside of Goliad. There is a lot of private property but that doesn't mean you can't either lease, or find public hunting within close proximity.
Victoria is in a great location for wildlife. You have Whitetail, Pigs, Turkey, Rabbit, Quail, Dove, Geese, Duck, Sandhill Crane, and Javelina.
Coleto Creek Reservoir and Management Area does a bowhunting draw for bucks and does every season and is also a good fishing/bowfishing lake for Hybrid Stripers, White Bass, Largemouth Bass, Catfish, Crappie, Bluegill, Carp, and Buffalo!
Your in very close proximity to the coast with 45 minute access to Lavaca Bay, San Antonio Bay, Matagorda Bay and Copano Bay which all provide great fishing/flyfishing for Redfish and Trout. This area is also excellent for Duck hunting... hell you can even draw a tag and get an Alligator out of the Guadalupe Delta WMA.
I'll also add that duck hunting on the coast is all public access.
Here is a great link from TPWD that shows Public Hunting areas on a map I would also suggest navigating around TPWD's website for a lot of helpful information.
I hope this is helpful. If you have any more questions please feel free to post them in this thread or PM me, I'd be happy to help!