Well you did ask for both pro and con.
On the pro side im sure they would work,
so long as you sent the right data to begin with.
Do they also make them for windage? Or does the shooter have to (learn) how to deal with wind?
Dialing using a good chart isnt very difficult. Even better if an i phone device is used in conjunction
with a program allowing for differences in temp, elevation, pressure etc. These things wont be doing that.
Wind will always be the biggest obstacle to deal with. Small differences due to temp etc not nearly as much.
The best remedy is a spotter sitting behind the shooter. Id personaly be zeroing the 22x250 for 300/400 yds before your dog trip.
Then id be holding and not dialing by using the reticle. You will find lots of dogs will be back in their hole by the time you dial the scope.