I came across this informative “first look” Marauder article at airgunweb.
If you’re reading this review and you’re like me, you’ve already read every other review you could find on the internet, so let me attempt to describe just how quiet it really is. The “ping” of the hammer and spring releasing the valve is LOUDER than the discharge. Or to put it another way, you’ll be able to HEAR the vibration in the hammer spring as it makes a cute “ting” sound. I accidentally blank-fired a BSA Sportsman HV .22 in a sporting goods store in Phoenix, AZ the other day and the report’s echo slapping off a nearby wall made my ears ring. The BSA wasn’t fully charged. Popping off the Marauder the same way, at 2500 PSI, in the much closer confines of my garage won’t make enough noise to frighten my 4 year old daughter! The blast of air will effectively eliminate a black widow spider! Yes, you WILL wonder if the rifle isn’t working right… until you shoot through your pellet trap, as I did! Mind you, I’m using this just as it came from the box, with the recommended valve, spring tension, and hammer-length adjustments. I’m not firing it remotely close to its maximum velocity! My pellet trap is (was) rated for .22 rimfire rifles. I’m going to need a sheet of battleship armor plating very soon. That’s no exaggeration. If you’ve got a pigeon or squirrel problem, you’ll be dropping them so fast, and so quietly, the live ones will be walking around wondering what happened to their buddies.
I like the description on the “ting” sound, and the rest seems to be pretty spot on. I am still shooting my Marauder at around 1500-2000 psi, but hopefully I will be able to go higher once my replacement screws for the Hill pump mount arrive from Straight Shooters.
I look forward to the author following up with a full review and/or subsequent reports.