could be due to 80% or so of us being right handed - so, the natural swing bringing up the rifle in movement would be slightly to the left - that's a theory - and also doing it a few times tonite (what a scientific process ).

I do recall (that's dangerous) that my scores on the running boar coming out of the right hand house were better than when he came back from the left hand house. Checked my notebook, but didn't denote the scores between right and left runs - my bad.

Have no idea about why the high bias. People have been noting that from the advent of the musket. "Fire on the bulge in their pants."