
Originally Posted by
blooregard
From your other post I see your shooting a Umarex 92F.
Stick with a light flat type pellet, I use Gecos in my CO2 Pellet shooters as they were nice and cheap and group well.
These make nice clear holes in paper. You can get pellets made from other metals but lead engages the rifling nicely and expands into it when fired. I have heard terrible problems with people getting copper pellets to group but have not tried them myself.
If your shooting BB guns then steel BBs generally work in all guns but lead balls vary in size and can deform in magazines.