Instruct: Retrieve semantically similar text.
Query: How to use adjustable objective rifle scopes<br>Be sure that your scope is mounted properly. Sighting-in can have been done preliminarily, but additional sighting-in will be desirable after following these steps : Know your rifle. There are actually two optical systems in a rifle scope.
Your scope has to be in the right place.
The phone had two cameras
People need more detailed instructions
Maybe there is an expansion.
It might sometimes be unclear.
You should practice your aim everyday.
The speaker mentions more than two different steps they are prepared to take.
The correct rifle action will perform better. 
A telescoping bolt reduces the required length of a weapon.
There are two instructions in this text.
You will need a clear photograph
There is more than one step
purpose can-t be measured
The manufacturer will require your serial number to determine the correct action for your rifle. 
An individual should determine the correct action for their own rifle.
The system was reformed 
There are at least two motions mentioned in this statement.
There is more than one round.
There should be a way to adjust the chair's height.
Magnifying lenses do not have to be mounted.
Goals help with focus.
Be sure that your scope isn't mounted properly
A scope needs to have lens covers while moving. 
Objective rifle scopes are more accurate than open sights. 
A scope will help you kill wild game more easily. 