A Martini Enfield would be great-get to shoot a Martini, without the expense and recoil of the 577-450 cartridge. But you have to be careful, one of the major importers was selling "original" Martini Enfields a few years ago, that many believed were actually "Khyber Pass" guns. I read a report (Gunboards? or on Surplusrifleforum?) where someone test fired it remotely, something like 125-150 rounds before total failure.