Berry's Manufacturing Superior Plated Handgun Bullets .40 S&W/10mm .401in 200 gr FP 500/ct 218. They are more affordable than jacketed rounds and won't foul your barrel with lead.SAAMI MAX .40 COL = 1.135"SAAMI MAX 10mm COL = 1.250"Can withstand velocities up to 1250 fps Specifications for Berry's Manufacturing Superior Plated Handgun Bullets .40 S&W/10mm .401in 200 gr FP: Manufacturer: Berry's Manufacturing Bullet Type: Flat Point Projectile Caliber: .40 Caliber Package Contents: Berry's Manufacturing Superior Plated Handgun Bullets .40 S&W/10mm .401in 200 gr FP Berry's Manufacturing 218: Superior Plated Handgun Bullets .40 S&W/10mm .401in 200 gr FP 500/ct