"When opportunity knocks!!!"

[Robert in NC]

Originally Posted by Rick W.

I am far from being right at times, but the attempt is still there. One has to get beat on for whatever to keep the faith sorta speak.

you might take a look at the first equation for tangent of the angle. Is it 8.1 or 81.1?

My stuff is not completely right either, as used a component of barrel length rather than sight radius.

Thanks for the nice presentation and pictorial; lot more than I did.

regards,

Rick W.

Opps! I did the calculation with 8.1 but mis-typed 81.1 on the figure. 81.1 inches would make a mighty long pistol barrel! The math as shown is correct with 8.1". I have corrected the image. Thanks for catching that!