Sounds like you have a very good shooting HK93 (the PSG1 trigger pack helps ;-). I would appreciate getting info on which 52gr Match and/or loading data and bullet if is your own (either on line or off line).Mine is a sub moa gun. It really likes 52gr Match, but will keyhole 77gr. The psg1 trigger pack will not work with the subcaliber device. I think I have every accessory for it, except a Hensoldt calibrated in 5.56...