..in which case it might not be prudent to shoot. those folks didn't care much about stuff like headspace or parts interswitchability.
,,,
The Khyber Pass region of the Afghanistan/Pakistan border has long been home to gunsmiths making homemade copies of firearms from whatever materials come to hand, be they railway lines, wrecked vehicles or scrap metal.
During British expeditions in the North-West frontier in the 19th century, the locals acquired numbers of rifles from the British. These were generally Martini-Henrys, but later on Martini-Enfields and even Lee-Enfields were acquired. They then began making copies using the afore-mentioned locally available materials.
The quality on Khyber Pass-made rifles is generally considerably inferior to factory-made examples and they may, in fact, be dangerously unsafe to fire. Khyber Pass Copy rifles cannot generally stand up to the pressures generated by modern commercial ammunition and it is generally advised that they not be fired under any circumstances.
The most obvious way of spotting a Khyber Pass Copy rifle, aside from the overall poor quality, is a reversed 'N' in the 'Enfield' markings on the receiver or 'VR' (Victoria Regina) ciphers with dates after her death in 1901.
...
http://www.victorianwars.com/viewtopic.php?f=24&t=822