Every fall a local ranch holds a BBQ and shoot. I missed it last year but I plan on running my boomers this year so a general clean up and test run last Monday has me dusting off the Rock Crusher and opening my last two boxes of Sierra SMK's and Game Kings.
I would love to try the 150g 8mm past 100 meters but this rifle has a very violent load and eject cycle and the short 150g pellet being short COAL when you seat for more neck contact and crimp. If I don't then I get some bullet push back. I think there is a medium spot for the max range of about 300 yards below the 1960's 198 Spitzer FMJ I was shooting.