I find that to be a remarkably short sided business approach. I do find Sierra Matchkings fly well. However, I also found that 215 Gamekings don't open (at all) at reasonable speeds and Sierras engineering was rather lacking in that example.
P,
What cartridge, impact velocity and game etc have you been shooting when using the 215 SGKs that weren't opening?
I'm assuming you're talking about the .338 cal version?
