The best deal to get for your Gauntlet or Gauntlet 2 is our Short Shroud Combo. It includes the short shroud, air stripper, and then you select the suppressor of your choice.
https://donnyfl.com/products/gauntlet-and-tatsu-package-deal?_pos=1&_sid=aec26c034&_ss=r
If you want to buy separate here is the links below.
You will need this adapter.
https://donnyfl.com/products/gauntlet-1-2-x-20-adapter?_pos=3&_sid=aec26c034&_ss=r
Aluminum air stripper
https://donnyfl.com/products/gauntlet-aluminum-air-stripper?_pos=2&_sid=aec26c034&_ss=r
Short shroud
https://donnyfl.com/products/gauntlet-short-shroud-with-1-2-x-20-adapter?_pos=4&_sid=aec26c034&_ss=r
For a .22 I recommend the Sumo .22/.25 1/2x20 #S61 option
https://donnyfl.com/collections/ldc/products/1-5-x-6-5-inch-sumo?variant=33070855487531
For a .25/.30 I recommend the Sumo .25/.30 1/2x20 #S9 option.
The other possible culprit is an improperly crowned barrel, or a pellet with a badly deformed skirt.
This will help avoid clipping but still provide good noise suppression of your airgun.