The 375 Oryxx (scientific name for the Gemsbuck) was designed by Jacobus Fourie, owner of Bateleur Arms in Laingsburg SA. It is based originally on the 505 Gibbs case that was trimmed to 3” and necked to 375 but cases can also be formed from 408 Chey-Tac brass. The 375 Oryxx is very similar to the 375 SnipeTac, except for the slightly shorter case. The idea started in 1998 with the rifle and cartridge seeing the light of day in 2001.