Does anyone have experience with Remington's new .30 cal power level ammo? The idea is similar to the use of 2 3/4, 3, and 3 1/2 inch shells in the same shotgun, but applied to a centerfire (30-06, 300 win mag, 300 RUM in this case). It seems theoretically interesting but I wonder if there's a problem with consistency. I also wonder what other calibers this idea could apply to (7mm-08, and 7 mm RM comes to mind).
http://www.remington.com/products/ammunition/centerfire/power_level.asp