My MPA BA 6.5 competition won't shoot groups like that. Did you spend a lot of time working up loads for it? Maybe I just have not found the "magic: load for mine yet..... or worse I god a dud. So far my Howa 6.5 shoots tighter groups and was 1/3rd the cost. So far I'm not real happy with my purchase.
I am using factory 6CM and seeing sub-moa/moa groups easily with my PMR. Doesn't mean yours may not have an issue. I'd say hit up MPA, they might have some insight.