I used to use the '68 on roe and red,devastating on both with a drop of only an inch at 200 if zeroed at 100
Good round but a tad fast on the roe,perfect for red
Used a 120g nosler BT in mine,dropped a bit more than the factory 93g rws rounds
Does burn the barrel more than the '55,then again it's a magnum or near enough one
Chronographed the rws factory rounds at about 3600 fps,fast!If I remember correctly,while now since I used it
That comes at a price,ie barrel and throat wear,wear ear defenders too,wakens the dead at 4am