I have a Sig 716 DMR, I will have to save for a high quality scope, Was considering an Eotech for short range fun out to 200yds, Or a Vortex 4-16X50 the crossfire model to get started should I put the Eotech on my AR 15 instead and go with scope on 308. I prefer shooting longer ranges with the 308, Is Eotech better served on a 223 over 308