The longer barrel can offer increased velocity and, with it, greater energy and effective range due to the propellant having more time to burn. 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. The drawback is that one loses the primary benefits of a handgun, i.e. portability and concealability, resulting in a weapon almost the size of, but less accurate than, a long-gun, but not much more powerful than a pistol.