Quote Originally Posted by DarkGrl View Post
Assuming no other wall defences such as traps or abatis, the battle would start out at base range of longest ranged unit +200

So for ATs only, the battle would start at 1300 +200, so at level 10 hbr on the attacking side, the cavalry could reach range 0 in the first round ( again assuming no cavalry with hbr10 on the defenders side, as fastest unit moves first, defenders win tie )
You're forgetting the joys of the 100%Lv 10 archery increase.