Does any scope manufacture make a white reticle? If not, why not? I get that many scopes have the ability to turn the reticle to green or red, but why not just a plain white crosshair reticle. Educate me. I shoot BPCR silhouette and my reticle blends into the silhouette and leaves me with no point of hold. I need a white reticle for ref on the black silhouettes.