ExAgoradzo said:
About 15 years back, we were evaluating several semi-autos for a particular slow-fire match stage that was setup more like a Bullseye match than our typical fast action USPSA match (we wanted to do something different and targets were set at 10-15-25-50 yards).
To our surprise, out of various pistols tested off sandbags at 25/50 yards, P89 produced one of smaller shot groups using our match reloads (IIRC, around 2.5" at 25 yards and 4-5" at 50 yards).
These are my FiL's old reloads he gave me since I just got this (new to me) auto.
At 7-10 yards, P89 is capable of producing single hole shot groups. I would be suspicious of the quality of the old reloads and try shooting some new factory ammo. Even Winchester white box ammo produces sub 2" shot groups at 7-10 yards out of most factory semi-autos.
As to point of impact (POI) being different from point of aim (POA), it may be either your trigger control and/or the sights. For semi-auto triggers, the pad of your index finger should be used to "press" the trigger straight back and not your first index finger joint to "pull" the trigger. If the shot groups are tight with new factory ammo but POI is different from POA left to right, adjust your rear sight. If your POI is lower than POA, you are anticipating recoil and pushing down on the pistol.
Also, dry fire while watching the front sight. If you are moving the front sight as you drop the hammer, practice trigger control/hammer release until the front sight doesn't move (or move minimally). I use this technique to make my pistol selection when buying any new/used pistol. If the front sight moves significantly when hammer/striker is fired, I try another pistol sample and buy the one that doesn't move (or move minimally). At 7 yards, this slight movement won't make much difference to shot groups but at 15-25 yards, this slight movement will make a significant difference on the size of shot groups.
Hope this helps.
