Berry's 40 Cal 155gr RS

Berry’s 40 Cal 155gr RS

Berry’s 40 Cal 155gr RS is a plated bullet component designed for handloaders building clean, accurate, and efficient loads for .40 S&W and 10mm Auto platforms. Featuring a round shoulder (RS) profile, this 155-grain bullet combines smooth feeding with reduced recoil, making it ideal for both recreational range shooting and high-volume training applications. It is a bullet component only and not sold as loaded ammunition.

Constructed with a swaged lead core that is fully electroplated with copper to final weight, the bullet undergoes a precision re-strike process to ensure tight tolerances in diameter and shape. Measuring .400″ in diameter with a bullet overall length of .503″, it is designed for seating to a cartridge overall length of approximately 1.125″ in .40 S&W and 1.250″ in 10mm Auto. Its full copper encapsulation helps prevent lead exposure and reduces bore fouling, making it suitable for indoor range use.

The RS profile is optimized for feeding reliability and consistent ballistic performance. Its rounded shoulder supports easy chambering in a variety of pistols, while the 155gr weight delivers a balance of velocity and manageable recoil. This makes it particularly well-suited for practice drills, service-caliber match shooting, and defensive training with reduced fatigue over long sessions.

Berry’s rates this bullet for a maximum velocity of 1,250 feet per second. Exceeding this threshold may compromise the integrity of the plating. Load data for comparable 155gr plated or jacketed round shoulder bullets may be used for load development. A light taper or roll crimp is acceptable, but excessive crimping should be avoided to maintain plating integrity and ensure consistent seating depth.

Berry’s 40 Cal 155gr RS is a practical and cost-effective solution for reloaders aiming to produce reliable .40 S&W or 10mm Auto ammunition. Its clean-shooting design, smooth feeding geometry, and moderate recoil profile make it an excellent choice for extended range sessions, skill-building, and versatile load development across a wide range of .40-caliber firearms.