The long range fire is having an effect on the British wearing them down. they do however make all morale checks and keep advancing. The Boers have a longer range of fire than the British but are weaker in morale so less likely to accept the same causalities as the British. The British do make a key hit on the boer leader which will further complicate morale issues is they come about. I found the middle game to mimic some of the historical issues that we have read about without being overly complicated.