****, if my memory isn't going {actually, it's gone, but I try and keep it a secret around my peers}. For what's worth, I have had some experience with Sierra's 130gr MKs tested out of a 7-08. Results were somewhat erratic--sometimes the bullet would hold together marvelously, other times it'd open up like a heretic exposed to fire. Why?--I don't know. I have a feeling material entry into the bullet's tip is very crucial. My velocities were all kept within +/- 50 fps 2800fps, depending on powder type. If I was getting fragmentation at or below those figures, it reasons that such problems would likely occur at an exponentially faster rate as velocity increased. However, for lung shots, I feel a person could get by--in fact, as the range exceeds 400 yards, a person really shouldn't have TOO trouble. Out to how far?--I don't know. Wind drift would probably cut you short before loss of energy, on smaller game. I wouldn't even try it on the bigger stuff. Best of luck. The suggestion over testing with soaked newspapers is a very good one. Set these "targets" out at various ranges, and see what happens. If nothing else, the rest of us would likely enjoy hearing, as its not "normally" a weight used in that style of bullet. Regards
Dave