.58 caliber

[Patrick Chadwick]

8 lead types

That would be pure lead, pure lead, pure lead, pure lead, pure lead, pure lead, pure lead, and pure lead.
Nothing else.
And sized so that the bullet is almost a slip-fit on a clean bore.
And use the short-skirt (shallow base) version on a 2-band P1858 Enfield. The long-skirt (deep base) version is for the 3-band P1853 Enfield which has a slower twist.