The .20 VarTarg / 5.2x35mm is a wildcat centerfire rifle cartridge, based on the .221 Remington Fireball case, necked down to fire a 5.2 millimetres (0.204 in) bullet.
The name VarTarg is a portmanteau of varmint and target.
There is also a .20 VarTarg Turbo based on the .222 Remington.
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