Barnes Original Hunting Rifle Bullet .38-55 Winchester 0.377in Dia 255 Grain Flat Nose Flat Base 50 Bullets. 38-55 Winchester was developed to be one of the most efficient and reliable bullets for .38-55 Winchester. Many believe these are the finest quality Rifle Bullets made today. All Barnes Rifle Bullets are precision-built using state-of-the-art equipment and designed to perform in extreme hunting situations. It all began in 1939 when seasoned sniper men developed a .38-55 cartridge. It wasn't long before word got around that these were the very first custom bullet that American hand loaders could purchase. Today these same bullets are widely considered to be the finest in the world. Buy and supply your favorite .38-55 Winchester bullets with confidence. Specifications for Barnes Original Hunting Rifle Bullet .38-55 Winchester 0.377in Dia 255 Grain Flat Nose Flat Base: Manufacturer: Barnes Bullet Type: Flat Nose Flat Base Caliber: .38-55 Winchester Bullet Weight: 255 grain Projectile Caliber: .375 Caliber Bullet Quantity: 50 Bullet Type: Bullet Country of Origin: USA Fabric/Material: Copper Package Contents: Barnes Original Hunting Rifle Bullet .38-55 Winchester 0.377in Dia 255 Grain Flat Nose Flat Base Barnes 30498: Original Hunting Rifle Bullet .38-55 Winchester 0.377in Dia 255 Grain Flat Nose Flat Base 50 Bullets