I wouldn't waste my time with the Scirrocos. I have shot them thru three 300RUM, same box, and all grouped about 2.5". I also tried reloading, and quit. They build pressure quick. Also, I know you got ya a nice little load there, but Remington doesn't make the 180gr nosler partition anymore. Goning to have to shoot 180g Corloks. If I was you, I would call and complain a bit. If you want to match that 180gr partiton, put 94.5gr of H1000 behind it with a 9.5 primer. Load her to 3.57". And she will be a spitting image of the factory.