Now for the reasons why you should NOT do this.
Shooting dry rice may damage your gun.
These modified shells are still extremely dangerous.
Do not point or shoot at any living animal.
These modified shells should be treated as normal shells.
It is very hard to tell the difference between un-modified and modified shells.
USE COMMON SENSE
This is to be used as a green alternative to shooting lead. For target practice only!
Step 1: Materials
A small flat-head screwdriver(to pry open the top of the shell)
A shotgun shell
Step 2: Opening the Shotgun Shell
With your cutting tool, cut a half circle on the top of the shell.
Press down until you hear the blade hitting metal. Thats how you know you cut all the way through the plastic crimping because the thickness varies.
Now insert your prying tool into the cut you made.
push down on the handle, creating leverage, therefor opening the top of the shell.
Shake the shell over a container and watch as the #6 shot falls out.
Do this until you cannot hear any rattling when the shell is shaken.
if you plan on shooting this shell(which you shouldn't)be sure to get out ALL of the lead shot.
Step 3: Putting the Rice Into the Empty Shell
This can get boring so be patient.
Periodically shake the cartridge (with your finger over the hole). The less noise it makes, the closer it is to being full.
Step 4: Closing the Hole.
Its ok if it's depressed a little more then before the operation.
Congrats, you have successfully(hopefully) modified a shotgun shell to shoot dry rice instead of lethal lead pellets.
Although it is less harmful then lead pellets, it is still extremely dangerous. Do NOT shoot at other people, the rice will likely poke an eye out. and it doesn't matter if you are a world class marksman, the rice will most likely shoot in a very spread out pattern.
The reason why I made this instructable was this can be a very funny prank.
Say theres this person who brags about never letting a deer get away with a shotgun. These shell are sure to put him(or her) into their place.