[robpiat]

Is it dropping 6moa @ 100yrds or elevating….only ask because if its elevation, thats not such a bad thing if you plan on keeping the suppressor on and are into long range shooting.  6″ POI shift sounds like a lot but its not unheard of when adding a suppressor, various designs and brands will all have varying POI shifts.

Dropping.

[robpiat]

I read elsewhere that you can check alignment with a 19/64 rod. I may give that a whirl. I still wonder what could have changed. I am thinking about getting a set of shims and tinkering around with the suppressor timing to determine if perhaps that will make a difference.

That was shot at an indoor 100 yard range. The groups outdoors with a proper bench are about 1/2-2/3 that size. Its a remarkable gun despite its quirks.