Dr Jim lists 46 8g; 38 were No. 2s

Yes, the "rough forged tubes", both pattern welded and fluid steel, were sourced in Belgium
https://docs.google.com/document/d/17ixogftgITEblNUWtmFBv96ZvgjK6eFell8GsAWd-KI/edit?tab=t.0

A few transition guns 1890 - 1892 had Laminated Steel and Crolle damascus made in Birmingham.