Great write up CW. Question: In the pic showing before and after, why do you need to cut off the brass that extends past the o-ring. Couldn't it be left on, drilled out, and a shorter piece of 1/16" stock used?
I tried this mod and I am very pleased. I dont have a chrony to test actuall numbers but I have my dads stock 2240 and can hear a big difference. The extended probe version hits the target harder as well.Thanks again for this post!