I got a new SRO last week and installed it on a Glock 34.5 MOS using a CH precision V3 plate. I also have a different 34.5 currently setup with a DPP on a Glock MOS plate.
With my reloads, I had previously been getting 3-4” groups off a sandbag at 25 yds with the dpp. I had been fairly disappointed in this, as I was able to shoot tighter groups with irons on the same gun.
I took the new SRO setup out to zero using the same ammo and was consistently producing 1.5” groups or less at 25. I haven’t jumped into further testing yet, but I’m guessing it’s the MOS plate vs CH plate. However, there are certainly some confounding variables I have to eliminate:
1. Different guns, and 2. different rds. Previously. When both guns were setup for uspsa production, I was getting the exact same sized groups with irons in the 2-2.5” range.
More to come, but I’m wondering if anyone else has noticed degraded accuracy using MOS plates?