Yeah there always is a short coming somewhere, for me, it’ll be on a thermal rig and just used as a reference for distance. That’s why I have a hard time justifying the vortexObviously it doesn't apply to Sig, but a lot of the cheap "ballistic calculator" solutions, especially the ones coming out of China, don't take shooting angle into account. And they don't bother to mention this shortcoming in their sales literature. A good example is the PARD and DNT Optics scopes that claim to have built-in ballistic solvers.