I am wondering if anyone on here has done or thought about opening up the nucleus 224 valkyrie bolt head to be able to shoot the Grendel type rounds? I have a spare bolt head laying around that I thought I had lost so I ordered another one and start thinking about doing it. I'm a machinist by trade so it won't be overly hard with the equipment I have access to to open up the bolt face bu 19 thou or so that would be required to make it work.