cljohnson24 wrote:All shots are over bait and have been assured the longest shot will be 50 yards at most. I figure 1800fps impact velocity at that range and thought proper expansion was assured anywhere above 1400fps?
Hoot, what velocity would you say would be safe for complete expansion?
I have always doubted that there is an expansion difference between the XPB and TSX bullets. Looking at them, they appear to have the same meplat. The XPB is designed for handgun velocities as opposed to the TSX being designed for rifle velocities. It seems counter intuitive to me that a monolithic copper
rifle bullet would expand at velocities lower than a
handgun bullet. Admittedly, I've never seen a cross section of the two side by side. I do know that the XPB meplat expands wonderfully down to 1800 fps passing through sequential plastic milk jugs full of water. While water is not a precise analog for ballistic gel, it is a good indicator of behavior. I have shot the 275 XPB's through my 450b with varying muzzle velocities and there wasn't a lot of difference in recoil between top safe velocity (in an AR) and slightly less velocity. That being said, at 50 yds and in, it won't matter. Catch a bone along the way and it definitely won't matter. Just my gut feeling...
Hoot