I cannot say anything about the Stryker or the ATACR as I have no experience with either, but I have been running the Accupower 4.5-30x56 MRAD on my 6.5 Creed match rifle since January. It has tracked flawlessly and the glass is very clear and sharp. I particularly like the floating dot reticle, and the red/green illumination. I also like that the scope includes Tenebraex lens covers. I would definitely consider purchasing another.