Thinking about getting an XD .357 sig. How hard it it to get brass, bullets and dies. I have read a little about it. From what I understand it uses a 9mm bullet, but only certain brands due to straight side area needed for crimp. What else should be considered for reloading a .357 sig before I take the plunge and buy a .357 sig pistol? Also I am pretty sure lead bullets are out due to the high muzzle velocity.