Afghan Tribal Martini Henry

[kahnjar1]

Originally Posted by Will M

To know which cartridge it fires, a chamber casting would help and slugging the bore for an accurate bore measurement.
Who used 50 cal ammo at the time this was made? British was .577 and .450

Early British cal for these rifles was 577/450 (a necked cartridge), not .577 AND .450.
Later models were in .303 British cal.
A pic of the early foil version of the 577/450 is shown here.
Stu