 However, loss in bullet velocity can happen where the propellant is utilised before the bullet reaches the muzzle, combined with the friction from the barrel on the bullet.As long guns, pistol-caliber carbines may be less legally restricted than handguns in some jurisdictions.Compared to carbines chambered in intermediate or rifle calibers, such as .223 Remington and 7.62×54mmR, pistol-caliber carbines generally experience less of an increase in external ballistic properties as a result of the propellant.