Originally Posted By: Slab Happy
I have no idea exactly how to do it. Was thinking of just dumping the shot out of a skeet load and refilling with rock salt, maybe waxing the shell closed.

Mebbe not such a good idea....
http://www.theboxotruth.com/docs/bot33_2.htm
He pulled apart 1-1/4 loads which would have had a medium-slow burning powder in them.
A fast burning powder would have be better for the light charge of rock salt.

Might just want to go with some birdshot.
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NO STEP ON SNEK