“Fuddlore” Freeze Plug Suppressor…

Baseline 220gr REM Subsonics
156.3 average
AAC SDN6 127.75 average(-28.55)
Formed FP Form 1 131.80 average(-24.50)

4.05 db difference in suppressors.

9mm PCC form 1 did very well IMHO on a different caliber setup and host. I believe with proper bore size and different spacing it can become a big competitor for newer suppressors of today in terms of sound reduction. The biggest draw back is weight and the 304SS material the plugs are. It limits it to certain calibers for longevity purposes but I see no reason why 300blkout super sonics can’t be used occasionally.

One thing to help in wear resistance might try to moly resin coat the plugs and find a VSR(Valve spring retainer) that’s 17-4 SS for a blast baffle.