FS impact last shot in mag issues

The last shot in my 22 impact invariably goes high...makes no difference as to pellet type, it just goes high...about an inch..

after I finished shooting for the day, it dawned on me to not load the last pellet to see if it the problem isn’t the pellet location, but just the last pellet... I’ll Try that next time..

‘anyone else notice this? I’m shooting at 29yds onto benchrest targets.

thanks for any input

Mike