I've used Bluedot with good success in my 308 and 6.5x55. It has some characteristics that may make it a better choice than Unique though Seafire is a better person to speak to the subject. If he doesn't chime in, you might send him a PM.

We may know the time Ben Carson lied, but does anyone know the time Hillary Clinton told the truth?

Immersing oneself in progressive lieberalism is no different than bathing in the sewage of Hell.