[yarddog]

I think you probably meant that for someone else. My range is in my back yard, I have over a mile with no structures.

I already am a certified instructor, or should say was one as I let my certification lapse when I retired.

[Concho]

Yup, I just cliked on the bottom reply and intended it for the author of the thread. I am a retired/lapsed NRA certified instructor also.