Savage Arms B22 Precision, Bolt Action, Rifle, 22LR, 18 Heavy Barrel, Black, MDT Custom Chassis, Right Hand, 10Rd 70248 Savage builds the B Series Precision rifles to take full advantage of rimfire rounds. From .22 LR to the punch of .22 WMR, the B Series delivers exceptional performance. And now the B Series Precision has opened up new possibilities for rimfire . With their Modular Driven Technologies (MDT) chassis and heavy threaded barrels, the B Series Precision rifles are in a class all their own.