Did a lot of hunting in my time and use to make silencers for my 22cal rifle when hunting snow grouse (Arctic Ptarmigan) used the silencer as not to scare them off, you could get 6/8 be for they'd scatter
Would get a soup can, 6"x1/2" copper tube and steel wool.
Cut a slit along the copper tube, so the tube can slide past the barrel front site.
Make a hole in the top of the can, stuff the steel wool in to the can. (after can is empty)
Solder the copper tube to the top of the can over the hole.
Slide the tube on to the barrel, us a hose clamp behind the front site to hold it on.
You have a silencer
That's how I used to make mine may have been ruff and crude but it worked, and didn't scare off the game