Reassemble is a verb. It is the act of assembling something again.
In a packet-switched data network, what is used to reassemble the packets in the correct order at the destination device?
Seperate
After I have dismantled the clock and cleaned the parts, I shall reassemble them and check that everything is working properly.
Reconstruct, reassemble, fix
Very carefully
Take it to a gunsmith.
You need to go to a gunsmith
You need gunsmith help.
Remington.com
Best to get assistance from a gunsmith.
Without knowing WHICH 22 pistol, we can only surmise that you did not correctly reassemble the pistol.