Hello to all, I've been watching the cold bore shot on some of my rifles. On one of them, it is very consistent. First cold shot is .75 to .5 moa low, then the point of impact rises, group holds well, then after fouling increases, point of impact rises again. This isn't really a problem, because it is predictable. However, I heard one of the claims of HBN is that it has the possible advantage of having the cold bore shot shooting with the rest of the group. I am curious and I'm going to give it a shot. I'm going to track the velocity of the rounds, find out when I get the velocity drop (indicating reduced pressure, therefore indicating reduced friction), develop a good load for the coated barrel, and after that happens I'm going to see about cold bore shots vs groups. Since I want to start with a cold bore and I'm waiting on materials yet, this project is going to take a while. I thought I would post this in case any one else here has already done this and or is curious about how it might turn out.