Buy 50rds 357 Magnum Sellier & Bellot 158gr. SP Ammo Online. This versatile Sellier & Bellot 357 Magnum cartridge is ideal for hunting, self-defense, and target practice equally. Its 158-grain soft point projectile expands substantially upon penetration, generating a broad wound path that makes it difficult for medium-sized wildlife and human-sized threats to recover. This bullet’s partial CuZn 10 jacket provides it with the capacity to readily pierce both thick hide and cloth, as well as to moderate the pace at which its exposed core induces expansion. Its bullet’s wide, flat meplat imparts a significant amount of energy upon impact; also, this form will create a clean hole in a paper target, which, together with the round’s low price, makes it an excellent training round. Sellier & Bellot’s factory-fresh brass shell slides effortlessly into and out of cylinders and magazines, and its durability is ideal for several handloading applications. Thanks to its specifically designed propellant and non-corrosive Boxer primer, you can expect this round to keep your firearm clean as well.