I tried 250gr Sierra MatchKings and 250gr GameKings with R22, R25, H1000, and Retumbo. I couldn't get them to shoot acceptable groups (better then 1/2 inch-this rifle was built by Kirby after all) so I never ran them over a chrony. I shoot 300gr MK's over 90gr of H1000 for 2800+fps and couldn't be happier.
Courage is just fear that has said it's prayers.
The people trying to say the 2nd Amendment is outdated are probably the same folks that would say the same thing about the Bible.