How about "BLG 11gr" for 11 gram lead projectile? "Crown" over "E" for express sounds odd. Is there a dot between "625"? Probably proofed in June 1925. They are a joy to shoot and usually are pretty simple to disassemble. Sometimes it takes a firm push to latch. With 7.6mm it may be a tight set of rifling but there are some schools of thought out there that suggest that a lead bullet will span down the diameter range.

Kind Regards,

Raimey
rse