This is the lead animator on DICE LA, he's been in charge of some of the best reloads I've ever seen in video games thusfar, check out the channel.
https://www.youtube.com/channel/UC1E-lu-LoLLfUs-AvJDNg-w

It's got videos on the Carcano, the 1912, the MKVI, the Perino and more.