Barrel temp is a major consern with the larger calibers when shooting pds.A Hornet,223 loaded mid book will remain cool enough to shoot preaty steady but the 223WSSM, 22-250 & larger will heat up fast.
The best solution is to have numerous rifles & switch often.Tipicly I'll take the AR,VT223,22-2508twist,VLE308 & one of the BMGs.Hope to have a 6.5WSM done for the June trip out.
A 200 round day is a lot if your shooting over 750 yards as you spot 1/2 the time for someone else so they can return the favor=CJ