Well to make a long story short I learned a lesson. I had apa build my rifle around federal gold match 168 ammo. Yes the gun is black magic accurate. I shot a 5 round clip and covered it with a foam ear plug! Any way I really wanted to hunt with this rig took it out and a relly nice 6 point came out. about 120 yards slight quarter away shot fliped over bully up. I thought wow, got my dad and started over. To my surpise the buck jumped up and ran of with out getting a shot off. No blood no where I really looked. found fresh track and a few pieces of hair. Heared a shot and neighbor lady got him. Honestly I think she missed and he fell dead in fornt of her? No other holes but mine and the blood was drying up on wound so it was my shot? Anyway I hit just where cross hairs where but only a 50 cent piece exit? I dont think much bone was hit but couldn't look inside? I need a bullet that shoots like fed gold metal but is a better hunting bullet? Lesson learned.