I shot the sierra lead tip spt, high velocity in a 22*250 and Swift around 4000 fps and forty two hundred fps respectively, just killed everything, no splashes ever. I shot IMR 4895 in the 22/250 and AA2700 in the swift.
There is a forty five grain bullet that is made for the hornet, this bullet is a round nose bullet...not a good thing at two fifty velocities!
Varget is a little slow burning for the forty five, probably is going to burn very dirty. I am shooting 37g with a fifty five grain sierra at 3700 fps.
We also shot a bunch of the sierra 40g HP that was designed for a sniper bullet for the LAPD so that it would not shoot a hole through a person's skull. This bullet performed great also, and speed was high with forty eight ninety five, we named this load the "cat bullet" because it just shot holes through bob cats.