Re: Vortex Razor HD 5-20x or the IOR Valdada 3.5-18x50
Both are great scopes, and often boil down as the last two choices for a prospective shooter b/c they are under $2000 OTD, and are FFP MRAD illuminated scopes
At the end of the day, it comes down to personal preference.
The Razor has oodles of reticle travel and a high-end zero stop. Choice of 4 reticles. Currently 5 mils per turn on the mil models. Excellent fit and finish and stoutness. The illumination is not everyone's favorite. Backed by a great company and great service. Tracks and holds zero perfectly. Excellent eye relief, average FOV.
The IOR has 10mils per turn, digital illumination that has worked flawlessly, tracks perfect, holds zero, has a rougher fit and finish and a crude (but effective) zero stop. Better glass than the Razor, IMO. Less reticle travel than the Razor. Excellent eye relief, better FOV, but does tunnel from 3.5-4x Comes with rings. Lifetime warranty.
Take your pick.
Scott