Found a partial box of Thunderbolts in my stash from pre-hoarding days and tried them in my suppressed Buckmark to see if they would be subsonic out of the 4" barrel. One ten round magazine produced 2 failure to fire, both fired on the second try, and one fail to eject that sounded like a squib load. I checked the barrel to make sure it exited & it did, but I could tell a distinct difference in the report even with the suppressor.
