Your set up will work fine. Don't worry about shooting through them. It's unlikely, but no problem if you do. Turkeys are relatively light, in relation to deer, for example. When the arrow hits them, there's some give/movement on the bird's part that retards penetration. some folks like to use big three or four blade heads, but I've found that Zwickey eskimos and Magnus II two blades worked well for me. As Deff says, hittingem is the hard part. Put it in the right place and just about any broadhead will do. Good luck.