RD: That was Terry Weiland with the 257. As I recall the rifle was not free-bored either but my memory could be bad on that point...in any event he could not shoot factory stuff in it.
This barrel stuff is funny, though. You get a tight barrel that doesn't go fast then you get one that does and it's hard to pin down "rules". In the end I guess when you see a barrel and round performing above and beyond the normal velocity levels,it's usually about pressure.
I go based on what is within generally accepted velocity levels for a given cartridge and have mostly stayed out of trouble.
