Thread: 77 gr Sierra Matchking on game

Originally Posted by Beavis

The SMK's work well at mk262 start velocity. Good luck trying to duplicate it with factory .223 or handloads. You will find that most heavy factory loaded .223 with heavier projects has a MV in the 2400-2500 fps range.

Yes I have not got there yet, Guncity 69gr SMK ADI 223 is 2940fps, and about 3/4MOA no signs of stress. I am still 150fps short of that and its accuracy but I am not at max load yet, hopefully BM2 will get me there no signs of flat primers / stress etc. 77gr PMC xtac I have not chrono'd yet but its very accurate (has anyone?) so is my data point / bench mark to match. There are low load nodes around min load but I need all the velocity I can get for 600yds.