1000rds 38 Special Magtech 158gr. LRN Ammo For Sale. Whether you’re engaging in cowboy action shooting or just seeking to punch holes in paper with your revolver, Magtech’s.38 Special cartridges will perform well. This ammo has a low recoil and a high level of accuracy, allowing you to fire all day long. It is effective in both and. 38 SPL as well as.357 Magnum revolvers. Magtech ammunition is loaded in Brazil using non-corrosive Boxer primers and brass casings. Note that these cartridges shoot 158-grain round-nose bullets made of lead. Even though they are the most economical projectile available and the most effective for shooting at steel targets, naked lead bullets are not usually permitted at all shooting facilities, especially indoor ranges. That should keep you occupied for a long, since each case includes 1,000 cartridges.