There's one in Ft Worth, off 35W towards Denton.Cabellas seems to have a much wider selection in the firearms section. Take ammo, for instance - at Outdoor World, they will have 3 or 4 brands of .223, but it will all be 55gr or 62 gr. Cabellas had it in 40, 50, 55, 60, 62, and 77 gr. Another difference - Cabellas has lots of match grade ammo, including Federal Gold and Black Hills. Outdoor world, one of their employees told me, only stocks "hunter grade" ammo.
They seem to put them only in smaller towns, I wish they'd put one up around the Dallas area.