This is my first topic, I have had a great time viewing all the old posts. I currently shoot a 250 grain gameking out of a 340 Weatherby with a 1-10 twist Lilja barrel, Rem 700 action. It will typically shoot .5 to .75 MOA. I am getting roughly 2900 FPS using 88 grains of RL25. In general, what type of accuracy improvements can someone expect by going to the MK bullets? Also anyone out there with any experience shooting the 300 MKs out of a 340 Weatherby? Thanks for any info on the 338 MKs.