Well last week we came back with 100 yard shots with some 169.5 grain Wildcat ULD RBBt and FB bullets. This week we have a 300 yard group of each and the results were surprising. I'll admit that I should have fired a few groups of each but we were also planning on doing some ATV and motorcycle riding so I only fired one group of each bullet then we packed up and went to get muddy. Last week the neater looking group at 100 yards were the flat base bullets and the longer group were the RBBTs. This week it was the opposite. Way opposite! Here is the 3 shot group of the RBBTs that measures just under one inch. The light wind may have had something todo with the horizontal shape. But I'll take 1/3 MOA at 300 every day of the week. But then I fired the FBs and I have no idea what happened. Is this what is meant by "sometimes a gun just wont like a certian bullet"? And I noticed the third shot went "flyer" to the right and #4 came back toward the group (way back this time). Kirby, I would especially like your input here if you would. Is it acceptable that two almost identical loads and bullets would do something like this? If anyone else has a comment please jump in. At this point I am ready to go full bore working on a load for the RBBTs and say "so long" to the FBs.