Have a Vortex Crossfire that was used on a 12 gauge pump and a single shot 45-70... although it is currently idle, it still functions fine.
Also have a Sig Romeo 5 currently sitting on a 12 gauge semi... still functions fine.
Personally, i prefer the simplicity of the rotary control on the Vortex, versus the button style on the Sig.
My rationale for that is a bit less cheap electronics to fail !!