ORIGINAL: Dsquared
When I bought my first 270, I bought two boxes of Remington 130 gr Corelokts factory loads with it too. They shot so well that the only reason to reload for it was becasue I already had the reloading equipment.
My pet load is 55.9 grs of IMR4350, CCI 200 primers, Rem brass, and Sierra 130 gr SPBT. The measured muzzle velocity slightly over 3000 fps. I never did crono the factory load ammo in my 270.
I am wondering, how much your groups would open up if you used 56 grains of IMR4350.