Okay. Got ahold of an old 110 7mm Rem Mag. I mean the back of the bolt has the slot not allen head cut into it. Anyway, bought a McGowen 28" 264 win mag barrel. MDT LSS XL stock, added PRS buttstock. Finally got a PTG bolt head in. So i take the bolt apart and start to assembly things. The new bolt head will not slide into the bolt body. Look inside the bolt body and there is a notch protruding into the ID. I look at the factory bolt head and there is a notch cut into the shank. So here is my question. For those who have encountered this. How did you solve it? Did you cut a notch in the shank of the PTG bolt head? Did you grind away the notch inside of the bolt body? Help is greatly appreciated.