My personal opinion is in LR, or even some what LR hunt, 'speed' should not be the determining factor... It should be accuracy, consistency, and confidence.
With turrets on my .257 wby /zeiss 4.5-14x44 I am confident out to 600 yards in the right circumstances, no problem. My longest is 625 on a coyote. Funny thing is, I missed him at 225, then killed him dead on the next ridge at 625.
