I have been sighting in my load for my 7mmRm for a couple of years with my handloads. Mainly shooting at 100 and 200 yard distances and studing the ballistic charts for my handloads. I was attempting to get it set at PBR @ around 300 - 350 yards. Well this past Sunday I actually had the opportunity to validate this. Shot at a Silhouette range with a max range of 500 Meters. Used my range finder and selected a couple of distances to shoot at. Target a 16" diameter disc and 2" thick. 336yds, 436yds and 550 Yards, per my laser range finder. Started at 336 yards, first three round were hits. I then moved to the 436 yards, First two rounds hits. I then attempted the 550 yard distance. I missed low the first three times and hit the target the fourth go round. I was very happy with the results and I am zeroed @ 336 Yards. Oh I also shot my TRG-S 338 Lapua for the first time. 250 grain Nolsler Partitions. Just getting familiar with the little monster. Velocity: 2900-2950fps IMR7828 83gr 3000-3100fps IMR7828 85gr Factory 26" barrel and muzzle brake All in all a fun weekend of shooting and was very happy with the results.