67th Tigers, all too well.
However, after the second volley literally cut me in half I don't remember too much...
It's actually quite an interesting tale. Cleburne was a former British soldier who was familiar with the cadre system the British adopted in 1853 for musketry training. The proper use of a rifle requires a whole new skillset over and above that of a musket and the British were the only army in Europe to universally train all their infantry as "riflemen"*. Other issued the rifle, but not the training, as indeed happened in the US.
In early 1863 Cleburne acquired a copy of the course of musketry and used the cadre system to completely retrain his division as "riflemen" rather than musketeers. Their first combat showing after this was at Liberty Gap, where the Union troops were quite shocked to find men dropping at 800m, a range normally considered safe.
I'm quite interested in the musketry of this period. Sherman's troops in 1864-5 did quite a lot of long range shooting, but their hit rates were worse than 1 hit per 1,000 rounds expended, whilst I've yet to find hit rates for the British in the rifle-musket period worse than about 1 in 20 (FWIW, typical hit rates in the fights between the AoP and ANV were around 1 in 150 to 200).
* Some simply didn't, in Austria, Prussia, Russia and France rifle training was usually restricted to light infantry, jaegars, chasseurs and the like. Prussian infantry with their M1841 needle rifles were forbidden from aiming.
