Chap

The orange dot is a 6" dot. At 100 yards the front blade will cover most of the dot, and trying to set the dot on top of the blade is not all that easy to define where the edge of the dot is.

I actually have a much better 100 yard open sight target but I wasn't really planning on shooting a 100 because I couldn't get the to 50 yard target to come up where I wanted it.

While I agree with you 70 grains doesn't seem like a lot of powder, the velocity of the those 460's should be plenty. I will probably in the end move to 80 grains for the final hunting load. I am just trying to figure how to shoot grenades. 80 grains of 3f will drive that bullet @ 1500fps which for that size chunk of lead is moving on by most peoples measurements.