My experience:
HK 91-Best ammo-Australian (MF4 and AFF) 1" followed by Portuguese (FMN) 1 1/4" ish at 100 yds. Basically, this is a 1 1/2 -2 MOA rifle. Match grade ammo opened it up quite a bit.
HK SR9-FGMM 168gr. SMK- it's consistently an MOA rifle out to 300yds. 175's and ball were not as good.
Both from bench with front and rear sandbags. Shoot a lot with different types, keep records then buy a lot of what works best!!!!!
HK 91-Best ammo-Australian (MF4 and AFF) 1" followed by Portuguese (FMN) 1 1/4" ish at 100 yds. Basically, this is a 1 1/2 -2 MOA rifle. Match grade ammo opened it up quite a bit.
HK SR9-FGMM 168gr. SMK- it's consistently an MOA rifle out to 300yds. 175's and ball were not as good.
Both from bench with front and rear sandbags. Shoot a lot with different types, keep records then buy a lot of what works best!!!!!