Hello Pozoutdoors, I would not reccomend the Lyman slug mold for 20 ga.
Get your kids started on a Lee mold for .575" RB loads of 290 gr in a Commander wad, very accurate and deadly and will not kick like a mule.
![](http://i232.photobucket.com/albums/ee75/Dantebeowulf/575and600RBinwadbig_zps8e8a92e5.jpg)
Here you can use CSD wads and let the fun begin:
![](http://i232.photobucket.com/albums/ee75/Dantebeowulf/20amp12gachoicescopy_zps957e3bc6.jpg)
all your choices are here with CSD wad and how you trim them for fit
![](http://i232.photobucket.com/albums/ee75/Dantebeowulf/Cuttingthewadcopy_zpscde0d740.jpg)
Cook your own home made slugs for pennies a load
![](http://i232.photobucket.com/albums/ee75/Dantebeowulf/20gaNondiscardingsabotscopy_zps42b65323.jpg)
![](http://i232.photobucket.com/albums/ee75/Dantebeowulf/April30test20gaNondiscardingsabotscopy_zps8de54070.jpg)
Hoping it helps you.
Warmest regards,
PreciousVideoMemories