[ltc8k6]

http://media.midwayusa.com/ProductImages/Large/135961.jpg

or these if your .22 doesn’t like the heavy bullet.

http://www.jgsales.com/images/1%2022LR%20Aguila%20A269%2040GR%20Subsonic%205001457.jpg

[Greysard]

.22LR Aguila SSS requires an uncommon twist rate. 1-16" does not stabilize them. I have some, they are great as long as you don't need any accuracy whatsoever :-) At 40 yards they will hit the target sideways. You will be better off with CCI CB Long - this is super-quiet and reasonably accurate; at 50 yards the bullet drop is about 2.5" compared to a regular speed round.