I don't chrony my loads that much. It means I have to shoot more to generate the needed data for dope cards (oh no's the horror), but I've had the same rifles for so long now that I pretty well know what to expect from a given combo well enough that I can get to within a min or 2 just walking it out at known yardages.
For example I tried out the 95gr Classic hunter in my 243, and tried Kirby's load development. This my round count from the first round fired of load development, settling on a load and getting sighted in for that load to checking drops. Round #18 first round hit on a 10"gong at 50, #20 1st round hit on a 6" gong at 600, #21 I blew it with the wind and cut the cable holding the 500yrd gong
. That was today as well, I have to admit it was entertaining watching through the scope as the right side of the gong fall.
Keep in mind the animals we shoot for food and display are not bullet proof. Contrary to popular belief, they bleed and die just like they did a hundred years ago. Being competent with a given rifle is far more important than impressive ballistics and poor shootability. High velocity misses never put a steak in the freezer.