If you can stop at Cabelas on I-35 south of Austin, do it.
Bass Pro on I-10, right near a Rudys BBQ
Bullet Hole ditto
Gun stores - Dury's lots of stuff - nice, Nagels - lots of stuff - cranky, Sportsman's warehouse if you don't live near one now.
Tom's Ribs - good - several in town
Boardwalk Bistro on Broadway and Hilterbrand - lunch
Mencius on Fredericksburg and Medical for Chinese.
Fancy - Bistro Vitale, Le Reve
Nice parks - Mary Frederich for a hike on I-10 north of 1604
Fredericksburg - the town
Lockhart - BBQ