Is anyone here firing blanks and dummy grenades out of their Yugo 59/66 SKS'? I saw a link posted here a while back mentioning Israeli practice rubber grenades, blanks, and the Yugo 59/66 SKS. Seems like a lot of fun, but at a 100 yard range, I'm wondering if the rifle's grenade launching sights are accurate enough to use when launching one. I'd hate to plunk down the cash for a rubber practice grenade and launch it over the berm into the bushes and never find it.