Rossi 2-RM669: The RM66 features Rossi\'s double action trigger and a crisp single action trigger pull. The RM66s 6\" barrel pairs with a red ramp front sight and a fully adjustable rear sight. This allows you to zero the RM66 for your ammo of choice, whether its 158 grain .357 Magnum or 130 grain .38 Special.The RM66 has 6 shots of .357 Magnum on tap in its steel cylinder. The full underlug barrel adds additional weight which helps manage magnum recoil. Further aiding recoil reduction is the wrap-around rubber grip, cushioning your hand during firing.