Ultra Lightweight, SVM and Accumark® rifles feature a specially-designed, hand-laminated raised comb Monte Carlo stock by Bell & Carlson. Button-rifled stainless steel barrel with flutes and recessed target crown (.583 for magnum and.Sear engagement adjustments are for use by Weatherby factory and Authorized Service Center personnel only Adjustable trigger with precise adjustments for let-off weight and sear engagement.Recessed bolt face is surrounded by the barrel, which is surrounded by the forged and machined receiver Three rings of steel surrounding cartridge case head.Provides for faster follow-up shots and fewer battered knuckles Nine locking lugs on magnum models (six on standard calibers) for 54 degree bolt lift-the shortest in the industry.Precisely inletted to assure repeatable accuracy CNC-machined aluminum bedding plate provides stable, solid platform for the barreled action.One-piece forged fluted bolt with three gas ports.Tan Bell & Carlson® raised comb Monte Carlo composite stock and black spiderweb pattern (Aramid, graphite unidirectional fibers and fiberglass).The ideal choice for packing into mountainous terrain or for carrying on an all-day hunt. The Ultra Lightweight is just that and so much more, tipping the scales at 5 3/4 pounds (6 3/4 pounds on magnum models).