Thanks Joe...
I think I got the info I needed between the basic websight, & the link you posted...
one thing I haven't found yet... is where is the target blank attached to the foot ??? in the center ??? , to the back edge, where the weight of the full foot restricts toppling the target over???
I'll have to roam around the site more, & see if I can get any details... I'm thinking about a set of pistol targets & a set of rifle targets... since they are for my own range, I'm afforded a little creative license, but I would like things close enough, that if I ever had the oportunity to attend a shoot, that I could compete on or with enough power to topple official targets...