Here's a good rule of thumb

Muzzle Velocity above 3300fps = Mono Bullets

Muzzle Velocity between 3000-3299fps = Bonded Bullets

Muzzle Velocity below 3000fps = any big game bullet


Of course this is MY rule of thumb and based on MY research and real world testing. But...there is a lot of truth to the above. The faster the bullet the more violent the entry. At 3300+ the Ballistic Tips have a higher probability of coming apart too quickly. At .308 speeds, or equivalent they can be absolutely devastating. Choose your bullets based on speeds in which you are pushing them.