Free: Contests & Raffles.
Here is one type - Competition Electronics ProChrono Digital Chronograph I've seen these around more than the one that I owned.The one I owned was the Shooting Chrony alpha. It was a decent unit. I think both are good, for what it is worth. Chrony has the F-1 as well. I don't know which can be hooked to a computer for all that stuff.I sometimes miss not having one.
Can you do shotguns with the Magnetospeed?
This is an easy one, Magnetospeed. They're accurate, consistent and incredibly easy to set up. Weather, clouds, light, etc, do not affect the Magnetospeed at all, unlike nearly all other chronographs.www.magnetospeed.com
Magnetospeed.