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                                    If we aim a gun from the scope attached to it, the height differs as the scope is little bit higher form the barrel.But why the aiming is always correct even if the barrel is lower from the scope. | 
                            
| Answer» If we aim a gun from the scope attached to it, the height differs as the scope is little bit higher form the barrel.But why the aiming is always correct even if the barrel is lower from the scope. | |