Bullpup rifle in what is essentially .338 Lapua necked up to .50 caliber.

Image references: https://modernfirearms.net/userfiles/images/assault/rus/1484845592.jpg
https://modernfirearms.net/userfiles/images/assault/rus/1323112873.jpg

Model: https://p3dm.ru/files/weapon/automaton/5121-ash-12-.html

Could probably fit as a mid-ground between battle rifles and DMRs, high power, low stability, low-ish rate of fire and bad ammo pickup. It looks like the Clarion/Famas, Lion's Roar/VHS or Union 5.56/F2000 animations would be rough fits for its layout, with some tweaking here and there.

Any interest or consideration is always appreciated.