Nice choice,I`m not big on Glocks but a 29 is on my "to get" list. Selection of 10mm ammo is a little funky until you get to know who has what. 180gr. 10mm Starfires are actually loaded *lighter* than they comparable .40 load! 180gr.JSP Corbons on the other hand will rock your world.
I generally carry ProLoad 180gr.GDHPs in my full sized 10mm. If memory serves velocity is around 1200fps or so,hot enough to pack some serious punch without big muzzle flip. In a compact gun I might go to a 155gr. load. ProLoad,GA and Texas Ammo all load a nice toasty 155gr.GDHP at around 1350fps. For hardcore "factory" 10mm ammo Weshoot is your man. I`m holding off on getting some of his thermonuclear loads until I find a 1006 to bring home.
Marcus