For long range rifle shooting, we've learned from long range handgun shooting, to hold the front sight over the rear notch, and put the blade or bead at the 6 o'clock position on the target. This is how one can shoot the steel sheep target at 300 meters with a 4" M29. That front sight is wide, but the bullet hits in the middle of it, right on the plate - pretty simple. Same type of aiming as with the rifle. It is the only situation where I aim at the 6 o'clock position. This allows one to see the target.
Taylor's old Hawken, the .62 with the 10 lines per inch fiddleback stock, had a bright line on the barrel from wear from leaning the rifle against the bench at the range when loading. This white 'spot' looked like a thin white line against the browning when viewed over the sights. Placing the line along the top flat of the rear sight, and the blade at 6 o'clock on the target gave him a perfect 'hold' for the 325 yard 12" rock we used to shoot at the Squamish range back in the 70's. We hit that rock with everything from my wife's .36 to his .62 and including my m29 4". No big deal - BUT - hitting an X offhand to win a 200 yard offhand match - THAT's a big deal.
Way to go, Roger.
Those 2 tens are better than someone's lucky X.