Bought a box of the Aguila 20gr powderless .22lr ammo today out of curiosity.
1st shot was super quiet, as in you hear the firing pin quiet. I smiled and thought, this is cool.
By chance I thought to myself I better check to see if it made it out of the barrel. Sure enough, when I looked down the bore there was no light at the end of the tunnel. The bullet lodged about 2½" from the muzzle of my LA101. Pushed it out with a cleaning rod and the 2nd shot was a repeat of the 1st.
So I gather this ammo is useless except perhaps for a pistol.