In the following days, both he and 'Er Dan' were making paper cartridges.
Currently, there isn't any gunpowder that detonates upon shock, so igniting the bullet is quite troublesome.
With the arrival of copper, some previously stalled work could now progress.
The most important among them is the production of bullet heads.
'Dai Zi' cast dozens of different-sized red copper handles.
After handing them to 'E Zi' for some carving, their appearance became relatively attractive.
Then, they were mounted on these solid wood furniture pieces, and the appearance was quite pleasing.
'Dai Zi' also followed Ma Lin's instructions to cast several disc-shaped red copper pieces, with one very smooth, flat side.
However, Ma Lin didn't know how to polish them to make them a qualified mirror.
He needed very fine sand.
He didn't have such fine sand there, nor did he know where to find it.
Thus, no copper mirrors could be made.
