Used them on the young buff.
I run hydros in most cals I use. The 7mm , 308 , 35, all work well on buff and scrubbers.
The 7mm hydro works well at 7-08 and 7x57 velocities. I try to get plenty of bone with the hydros. they penetrate very deep. Ive only recovered two. A 9.3 286gr out 9.3 x74 and a 225 35 out of a 358 win. Both out of buff bulls.
Cheers Mick