Hello..
Can anyone tell me where I can find DVD for sale that are about practical shootting or PPC-shooting ?

Try this site http://www.booktrail.com/Video_Shooting/VIDSHOOTING.asp
I'm not sure if it offers exactly what you are looking for or not, but I hope it helps.

Check Brian Enos' and Dillon's sites. Both have several.
http://www.brianenos.com/pages/home.html
http://dillonprecision.com/default.cfm?

Bye
Jack