Just sighted in my Optima with 2/50gr 777 and 245gr aerotippied Powerbelts and at I have it dial in at 100 yrds. groupoing at 100 yrds was about 3/4in. I let the gun rest andcleaned it and fired 3 mor orunds down range. I put a new target up and put two holes in it the second round passed throught the same hole as the first one and the third round was touching the other hole. I am no set at 1" high at 100. The PB shot great and loaded a whole lot better than any other rounds I used.
I will stick with them and 777 It only took 10 minutes to clean my ML