Re: Sirocco's and 300 Win Mag
I have records of a 180 Scirocco that I used in an older 300 WM that shot these at .5 MOA. It was with Rem brass, F-215 primer, and 75.0 gr work up with RL-22. Swift told me to seat a minimum of .050 and run them fairly hot. Since then, I have replaced that 300 with another and haven't had as good of luck. I ended up switching to Accubonds. I also tried 150's in a .280 Rem and couldn't get anything going. They always seem real finicky but once you find a load, they do well.
I believe I still have a private line to one of their techs. If you need it, PM me and I'll send it to you.