In Escape from Tarkov, the handling of weapons can be trained through active use. In short, the more you use a certain weapon, the more skilled you become with it.
Depending on the weapon, reaching mastery level 2 or level 3 will provide a new reload animation. Level 3 grants the ability to reload while aiming down sights for all weapons in that mastery category.
Weapons that are based on the same platform share a mastery. 1 EXP is gained for every hit on entities in an online raid. For cartridges that fire multiple projectiles, each projectile hit gives EXP.
Assault rifles[]
Required EXP for level 2: 1600
Required EXP for level 3: 2000
ADAR 2-15 5.56x45 carbine
Colt M4A1 5.56x45 assault rifle
HK 416A5 5.56x45 assault rifle
Required EXP for level 2: 2000
Required EXP for level 3: 2200
Kalashnikov AK-12 5.45x39 assault rifle
Kalashnikov AK-101 5.56x45 assault rifle
Kalashnikov AK-102 5.56x45 assault rifle
Kalashnikov AK-103 7.62x39 assault rifle
Kalashnikov AK-104 7.62x39 assault rifle
Kalashnikov AK-105 5.45x39 assault rifle
Kalashnikov AK-74 5.45x39 assault rifle
Kalashnikov AK-74M 5.45x39 assault rifle
Kalashnikov AK-74N 5.45x39 assault rifle
Kalashnikov AKS-74 5.45x39 assault rifle
Kalashnikov AKS-74N 5.45x39 assault rifle
Rifle Dynamics RD-704 7.62x39 assault rifle
RPK-16 5.45x39 light machine gun
SAG AK-545 5.45x39 carbine
Required EXP for level 2: 500
Required EXP for level 3: 600
Kalashnikov AKM 7.62x39 assault rifle
Kalashnikov AKMN 7.62x39 assault rifle
Kalashnikov AKMS 7.62x39 assault rifle
Kalashnikov AKMSN 7.62x39 assault rifle
Molot Arms VPO-209 .366 TKM carbine
Molot Arms VPO-136 Vepr-KM 7.62x39 carbine
Required EXP for level 2: 275
Required EXP for level 3: 350
Kalashnikov AKS-74U 5.45x39 assault rifle
Kalashnikov AKS-74UB 5.45x39 assault rifle
Required EXP for level 2: 275
Required EXP for level 3: 500
AS VAL 9x39 special assault rifle
VSS Vintorez 9x39 special sniper rifle
Required EXP for level 2: 350
Required EXP for level 3: 500
Steyr AUG A1 5.56x45 assault rifle
Steyr AUG A3 5.56x45 assault rifle (Black)
Required EXP for level 2: 450
Required EXP for level 3: 600
Desert Tech MDR 5.56x45 assault rifle
Required EXP for level 2: 350
Required EXP for level 3: 500
FN SCAR-L 5.56x45 assault rifle
FN SCAR-L 5.56x45 assault rifle (FDE)
FN SCAR-H 7.62x51 assault rifle
FN SCAR-H 7.62x51 assault rifle (FDE)
Assault carbines[]
Required EXP for level 2: 200
Required EXP for level 3: 250
Tokarev AVT-40 7.62x54R automatic rifle
Required EXP for level 2: 200
Required EXP for level 3: 300
Molot Arms Simonov OP-SKS 7.62x39 carbine
Required EXP for level 2: 275
Required EXP for level 3: 500
AS VAL 9x39 special assault rifle
VSS Vintorez 9x39 special sniper rifle
Required EXP for level 2: 75
Required EXP for level 3: 150
Required EXP for level 2: 275
Required EXP for level 3: 500
KBP 9A-91 9x39 compact assault rifle
Light machine guns[]
Required EXP for level 2: 150
Required EXP for level 3: 200
U.S. Ordnance M60E4 7.62x51 light machine gun
U.S. Ordnance M60E6 7.62x51 light machine gun
Required EXP for level 2: 150
Required EXP for level 3: 200
Kalashnikov PKM 7.62x54R machine gun
Required EXP for level 2: 150
Required EXP for level 3: 200
Degtyarev RPD 7.62x39 machine gun
Submachine guns[]
Required EXP for level 2: 300
Required EXP for level 3: 450
TDI KRISS Vector Gen.2 9x19 submachine gun
Required EXP for level 2: 200
Required EXP for level 3: 250
HK MP5K 9x19 submachine gun
Required EXP for level 2: 550
Required EXP for level 3: 800
HK MP7A1 4.6x30 submachine gun
Required EXP for level 2: 150
Required EXP for level 3: 175
B&T MP9 9x19 submachine gun
Required EXP for level 2: 175
Required EXP for level 3: 350
PP-19-01 Vityaz 9x19 submachine gun
Required EXP for level 2: 175
Required EXP for level 3: 200
PP-91-01 Kedr-B 9x18PM submachine gun
PP-91 Kedr 9x18PM submachine gun
Required EXP for level 2: 150
Required EXP for level 3: 175
IWI UZI PRO Pistol 9x19 submachine gun
Shotguns[]
Required EXP for level 2: 300
Required EXP for level 3: 650
MPS Auto Assault-12 Gen 1 12ga automatic shotgun
Required EXP for level 2: 350
Required EXP for level 3: 450
Required EXP for level 2: 400
Required EXP for level 3: 800
Required EXP for level 2: 1500
Required EXP for level 3: 2200
MP-153 12ga semi-automatic shotgun
Required EXP for level 2: 150
Required EXP for level 3: 250
MP-43 12ga sawed-off double-barrel shotgun
Required EXP for level 2: 300
Required EXP for level 3: 650
Saiga-12K ver.10 12ga semi-automatic shotgun
Designated marksman rifles[]
Required EXP for level 2: 100
Required EXP for level 3: 200
Required EXP for level 2: 175
Required EXP for level 3: 300
Required EXP for level 2: 350
Required EXP for level 3: 300
Required EXP for level 2: 275
Required EXP for level 3: 500
AS VAL 9x39 special assault rifle
VSS Vintorez 9x39 special sniper rifle
Bolt-action rifles[]
Required EXP for level 2: 150
Required EXP for level 3: 200
Required EXP for level 2: 100
Required EXP for level 3: 175
Required EXP for level 2: 150
Required EXP for level 3: 200
Required EXP for level 2: 200
Required EXP for level 3: 250
Mosin 7.62x54R bolt-action rifle (Infantry)
Required EXP for level 2: 75
Required EXP for level 3: 125
Required EXP for level 2: 150
Required EXP for level 3: 200
Required EXP for level 2: 125
Required EXP for level 3: 250
Pistols[]
Required EXP for level 2: 75
Required EXP for level 3: 100
Stechkin APS 9x18PM machine pistol
Required EXP for level 2: 75
Required EXP for level 3: 100
Magnum Research Desert Eagle Mk XIX .50 AE pistol
Magnum Research Desert Eagle L6 .50 AE pistol (WTS)
Magnum Research Desert Eagle L6 .50 AE pistol
Magnum Research Desert Eagle L5 .357 pistol
Required EXP for level 2: 100
Required EXP for level 3: 125
Glock 17 9x19 pistol
Glock 18C 9x19 machine pistol
Required EXP for level 2: 75
Required EXP for level 3: 100
Colt M1911A1 .45 ACP pistol
Required EXP for level 2: 75
Required EXP for level 3: 100
Makarov PM 9x18PM pistol
Makarov PM (t) 9x18PM pistol
Required EXP for level 2: 75
Required EXP for level 3: 100
TT-33 7.62x25 TT pistol
Revolvers[]
Required EXP for level 2: 75
Required EXP for level 3: 100
Chiappa Rhino 50DS .357 revolver