Worth noting the disagreement between the Scatt system and the scoring system... which is why Scatt isn't so good for scoring.
For those who don't know what a 10.5 is, a 10 is 5.0mm And so a 10.5 is allows for about 2.5mm total movement from left to right at 10m. Or like hitting a 25mm reducer at 100 yards, standing... no splits given.
BFTA/NSRA County Coach
CSFTA Chairman/BFTA Rep