Berry's Premium Plated Bullets are swaged and plated to final weight and re-struck for accuracy and precision. They are more affordable than jacketed rounds and won't foul your barrel with lead. The Target Hollow Point is similar to the flat point profile but the hollow point nose cuts a cleaner hole through the target and allows the bullet profile to be longer providing more contact area with the barrel and rifling to stabilize the bullet and improve accuracy. .40 COL = 1.135" 10mm COL = 1.260" Can withstand velocities up to 1250 fps.