Postoak;
Not familar with the Texas laws, but here in TN it could be used on anything except birds covered by the federal migratory laws, thus no waterfowl or doves. It could be used for anything else. In all honesty in over 50 years of use I have just never felt handicapped by having only two shots, but one of these would just be neat to have.

Miller/TN
I Didn't Say Everything I Said, Yogi Berra