.300 Remington Short Action Ultra Magnum

.300 Remington Short Action Ultra Magnum is a .30 caliber short magnum cartridge that is a shortened version of the Remington 300 Ultra Mag, both of which derive from the .404 Jeffery case. Wikipedia
 
Case length2.015 in (51.2 mm)
Bullet diameter.308 in (7.8 mm)
Overall length2.825 in (71.8 mm)
Neck diameter.344 in (8.7 mm)
Shoulder diameter.534 in (13.6 mm)