Mike, thanks for the information. It would appear that my choice would be the 135gr or the 165gr GD's. While the 165gr GD's offer more in the way of expansion, I'm wondering if the fragmented pieces of the 135gr HP would possibly create secondary wound channels. If so, perhaps the 11" of penetration would quite adequate. In any case, either choice in my G20 or 1066 should be up to the job if ever required(and I hope it's NEVER required!). Again Mike, a big "Thank You" for everything you've done, not just for the 10mm community. Frank Wanna kill these ads? We can help!