I am just working up some varying loads for my new rifle in this caliber, has anyone else that has been shooting it got any recommendations for loads with 250 and 300 grain matchkings? any help would be greatly appreciated. The rifle is a Sendero SF-II with a new 30"Lilja barrel and a muzzle break. Timney trigger, and a Nightforce 3.5-15x50 scope with the NPR-2 reticle. Shooting great so far with the 250 grainer and Retumbo.