Well I don't know if they would hold together going at a velocity of
over 3000 ft per sec or not...
Grand Slams are not bonded bullets so I'd think they are more dependable at velocities at 2700-2800......
I thinking the bullet will still be traveling at 3000ft /sec out to 100yrds but I don't know....
But regardless,I'd say there are better bullets than these to use with the cal. of gun you have........