Upgraded SV-98
n 2013 an upgraded SV-98 variant was developed by Izhmash featuring an adjustable aluminum skeleton type stock. Izhmash expects the upgraded variant to be more economical to produce and offer improved maintainability and accuracy of fire. It has been tested by Izhmash since 2013. The upgraded sniper rifle features an aluminum alloy receiver providing enhanced performance and lower cost of production. The adjustable stock is ambidextrous. The buttstock length is adjustable and the position of the butt plate and comb adjusts by length and height. It also features a bipod in the forearm and a leg in the buttstock; adjustment of each leg is independent. In travel position the bipod is folded into the forearm, and the rear leg – into the buttstock, and, thus, do not enlarge the overall dimensions of the weapon. The upgraded SV-98 is can also be equipped with a tactical suppressor to reduce the sound blast, blowback and flash when it is being fired. It also features a Picatinny rail on top of the receiver to mount Russian-made and foreign-made optics. It comes with a standard 1P69 optical sight with a 3–10× variable magnification and is equipped with an open sight. The rifle safety catch locks the trigger, inerts the sear and prevents the rotary bolt from turning (unlocking).
SV-98M
The SV-98M is the post 2017 Kalashnikov Concern production variant and is based on the 2013 upgraded SV-98 variant. It has a lightweight skeleton stock made of aluminium alloys, a Picatinny rail for optical scopes on the top of its upper receiver, a folding stock, and an integrated bipod. It is chambered for the 7N1 or 7N14 7.62×54mmR sniper cartridges and has a magazine capacity of 10 rounds. The sniper rifle has a combat weight of 7.8 kg, a length of 1,200 mm (including a barrel of 650 mm), and an effective firing range of 1,000 m. It can be equipped with a suppressor instead of the organic muzzle brake to reduce the sound blast, blowback and flash when it is being fired. The SV-98M is primarily intended for the snipers of the Russian Ground Forces. According to a source in the local defence industry, the military has ordered a small batch of SV-98M sniper rifles for operational test and evaluation.
SV-338, SV-338M, SV-338 M1
Based on the Record full bore sport shooting rifle series Izhmash also developed the SV-338, SV-338M, and SV-338 M1 sniper rifles chambered for the .338 Lapua Magnum (8.6×70mm or 8.58×70mm) cartridge. These rifles feature scaled-up magnum bolt actions but are similar to the SV-98.