Info wanted .360 No3 BP Express WR


In my collection I have a


The only info I have was that Westley Richards built single & double barrel rifles for this rd. It was first “noticed” in 1884. The hollow point bullet was 150 grains and the charge was 40 grains of black powder.
It is described as .360 Westley Richards No3 Express, 1 29/32 inches

Edited for spelling.