Although some publications date this cartridge as being introduced in 1911, Mark Crudgington, whose family has owned the George Gibbs Ltd company for over 40 years, assures me the correct date is 1913. Well, just an academic point of little importance. My introduction to this great calibre was only in 1978, when I bought a .505 rifle built in 1927 by George Gibbs at his works in Bristol, England. I paid Zim$500 for the weapon plus its original canvas- covered wooden case and 150 cartridges. Nick Holt sold a similar rifle of the same era at his last 2007 auction, which went for £8 000 (about R120 000).