If the Welin breech block appeared in 1830

What if the Welin breech block had been invented in 1830?

Earlier breech loading could improve firepower and encourage turret designs. Foreign imitation is expected, with disagreement about secrecy and a lead of roughly five to ten years suggested.

The premise gives the Royal Navy reliable Welin interrupted-screw breech blocks in 1830. These promise a major firepower advantage and earlier opportunities for turret-mounted guns. Keeping the mechanism secret prompts disagreement: one participant expects aggressive protection, while another doubts that patents and secrecy could prevent international diffusion for long. A lead of roughly five to ten years is suggested. One participant also acknowledges that the period lies outside their usual expertise.