Brand GECO Caliber 22 Long Rifle Model GE254040050 Bullet Weight 40 Grain Bullet type Lead Round Nose Reloadable NO Case Type Brass Rounds per box 50 Rounds Per Box Boxes per Brick 10 Boxes Per Brick Muzzle Energy 104 ft lbs Muzzle Velocity 990 fps GECO incorporates over 100 years of expertise in a wide range of products which includes handgun ammunition, air gun pellets, small caliber ammunition, shot shells, rifle cartridges and has recently introduced explosive cartridges and blank cartridges. With state of the art technologies, innovative design, and exacting quality controls. These are extremely reliable, match grade cartridges for discerning shooters. GECO rounds provide consistently tight groups shot after shot. These rounds are brass cased and are non-corrosive. GECO produces some of the best precision crafted ammunition on the market today.