Product Description Speer TMJ (Total Metal Jacket) handgun bullets are built for clean, consistent performance in target shooting and practice. Unlike conventional full metal jacket (FMJ) designs that can leave lead exposed at the base, Speer&';s Uni-Cor construction fully encases the lead core in a seamless jacket to help reduce airborne lead and fouling. This .45 caliber, .451" diameter 230-grain round nose projectile is engineered for reliable feeding and repeatable accuracy for reloaders. Product Highlights Uni-Cor technology fully encapsulates the lead core in a seamless Total Metal Jacket for cleaner shooting .45 caliber/.451" diameter 230 grain round nose profile for dependable feeding in many .45 Auto loads Helps reduce airborne lead and barrel/compensator fouling compared to exposed-base FMJ styles Swaged for uniform heel and consistent diameter to support accuracy and consistency Convenient 100-count box (commonly packaged as 5 boxes per case) Specs Brand: Speer Ammo Manufacturer Part Number: 4480 UPC: 076683044808 Product Type: Reloading handgun bullets (component projectiles; not loaded ammunition) Caliber: .45 / .45 Auto Diameter: .451 in Bullet Weight: 230 grain Bullet Type/Profile: Total Metal Jacket (TMJ), Round Nose (RN) Construction: Lead core fully enclosed by a copper jacket (Uni-Cor) Quantity: 100 bullets per box Case Pack: 5 boxes per case Sectional Density: 0.162 Ballistic Coefficient: 0.153 Disclaimer: We strive to provide accurate and up-to-date product descriptions, specifications, and images; however, errors or omissions may occasionally occur. We are not responsible for any inaccuracies or discrepancies in the content provided. If you notice anything incorrect or unclear, please contact us so we can correct it. When in doubt, we recommend verifying details directly with the product&';s manufacturer.