I got to spend 4 days potting groundhogs with the little 6MMBR gun in southwestern pa last week...The new laser range finder really helped..I used the Lieca 1200..very nice..I need to really sit down at the range & coordinate the sight settings to various ranges & use a note book...The winging it method cost me a few important shots..I had the sights on a white GH at 425 & it should have been a chip shot on my last day down there..I fell just short of the target & really spooked him so no second chance...I got fifthteen In 4 days my hunting buddies LUKE & John did about half as well..The longest shot was 568 yds with the new 80 gr berger HP varmint bullet..Seems very stable & hits with real authority at extended ranges...Most shots with the BR gun were 295 to about 470 yds..& I was pleased with that kind of shooting.The 87 gr V-max bullet was used the first day & a half,then I switched to the berger bullet,It was a short learning curve to get it on target to about 400 yds but the trajectory values were different from the V-max ...The grass is growing fast so If u havent got out yet this year do it !!! Always great hunting in pa..u guys are so lucky..I had asked the farmers to keep the ears open for coyotes..They are down there for sure not infested like here in Ct but if they get going they will wipe out the groundhogs so give them no quarter..Keep a sharp eye out on every field & use a varmint call before leaving each spot..We had one pop out just as we were leaving one spot at dusk..he got lucky & a free meal there..Good shooting & good luck to you all..mike in ct