50 years of shootin, seen what I thought was " key holin". You know, the oblong hole from not enough twist. But totally sideways? Wow! /ubbthreads/images/graemlins/blush.gif
There should be a term for what you are getting but keyholing meant something a little less drastic to me.
That is one of the more bizare things I have seen.
Done that years ago with the 17 Rem. After about 4 shots through a clean bbl that's whatcha got.
The other feature was a lead feather trace out of the hole on the target @ 100 yds. Tho't that was cool too. /ubbthreads/images/graemlins/grin.gif Quite a feature. /ubbthreads/images/graemlins/confused.gif