Originally Posted by
ccmdfd
Got a 280AI earlier in the year. Wanted something with a little more reach than my 7mm-08 for deer, and possibly larger critters, but without getting into magnum territory. Chose the Barnes 139 LRX as my bullet of choice.
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Question 1: Am I right in thinking that even with a tight 100 yrd group, those large ES/SD's will lead to problems if I stretch the range out?
So happened on some Hybrid 100V, which is listed as using less case capacity. Sure enough, even at max charge and 0.05 off of the lands, no compression at all. Took it to the range and got MV of 2950, but now with ES of 20 and SD of 6. Yay! Unfortunately, my groups opened up to 1.1-1.2 inches at 100.
Question 2: What's best next step? Keep with Hybrid (and lose temp stability) and work on seating depth and see if I can tighten those groups up? Or go back to 4831SC and see if i can keep the tight groups but do something else to tighten up the velocities? Other ideas?
Thanks
cc