ALC Marksmanship Exam 02/13/2017
What are the five factors of a solid position?
Firing hand Non-firing hand Rifle butt Stock weld Elbows
Applying the two basic principles of shooting until recoil has ceased is known as what?
Follow through.
A bullet flying through the air is acted upon primarily by two forces, which change the direction and velocity of it's motion. What are these two forces?
Gravity Air Resistance
Increasing the angle of departure, imparting spin, and imparting high velocities on the bullet are three things we do to counteract what?
Gravity Air Resistance
When reading wind, you want to focus on conditions where?
Half way to two thirds to the target.
Why is consistent stock weld important?
It allows for consistent sight alignment.
What portion of the trigger finger needs to be on the trigger?
It doesn't matter, so long as you have it naturally resting on the trigger.
What is a minute of angle (MOA)?
It is the unit of measure used by weapon systems, with which you will make windage and elevation adjustments.
What happens when a bullet leaves the bore of a rifle?
It will immediately begin to fall to the earth.
Properly pointing the rifle with consistent sight alignment and firing the rifle without moving it, utilizing smooth trigger control is known as what?
Shooting Integrated act of firing
While aiming, where should the eye be focused?
The front sight post or reticle.
What is sight picture?
The process of centering your eye with the aiming system and with the target.
What is sight alignment?
The process of centering your eye with the aiming system.
What has the greatest effect on ballistic trajectories?
The wind.
The path of flight that the bullet will take when it is fired from the rifle is known as what?
Trajectory
How many times will the bullet cross your line of sight before it hits the target when engaging a 350m target with a 300m battle sight zero (BSZ), aiming center mass?
Twice
Is all shooting the same?
Yes
Will the bullet always got in the direction that the barrel is pointed?
Yes
Adjusting the sights so that the bullets impact where we are aiming, is referred to what?
Zeroing
What is the formula for calculating half value wind drift?
((b) distance * (y) MPH) / 7 = (c) MOA / 2 = (x) MOA
What is the formula for calculating full value wind drift?
((b) distance * (y) MPH) / 7 = (x) MOA
What is the formula for obtaining MOA?
(a) inches / (b) distance = (x) MOA
What is the formula for converting MOA to inches?
(x) MOA * (b) distance = (a) inches
You are shooting a 5.56mm weapon at 500m. You have a 5 mph wind from the 12 o'clock. What is the wind drift?
0 MOA 0 Inches
6" @ 600m equals how many MOA?
1 MOA
What does one minute of angle (MOA) equal?
1 inch per 100 yards/meters
6" @ 400m equals how many MOA?
1.5 MOA
Bore sighting is conducted as what distance?
10m
4 MOA @ 300m equals how many inches?
12 Inches
5 MOA @ 300m equals how many inches
15 Inches
How many right hand twist are in the barrel of a M16A4?
1:7 Right hand twists.
You are shooting a 5.56mm weapon at 300m. You have a 14 mph wind from the 1 o'clock. What is the wind drift?
3 MOA 9 Inches
20" @ 500m equals how many MOA?
4 MOA
You are shooting a 5.56mm weapon at 400m. You have a 7 mph wind from the 3 o'clock. What is the wind drift?
4 MOA 16 Inches
You are shooting a 5.56mm weapon at 600m. You have a 6 mph wind from the 9 o'clock. What is the wind drift?
5 MOA 30 Inches
3 MOA @ 200m equals how many inches?
6 Inches
You are shooting a 5.56mm weapon at 300m. You have a 14 mph wind from the 3 o'clock. What is the wind drift?
6 MOA 18 Inches
The most valid zero for your weapon is obtained by what?
A no-wind zero at actual distance.
All firing takes place where?
At the rifle.
Everything that happens to the projectile from the time the primer is struck by the firing pin until the projectile comes to a complete stop, is referred to as what?
Ballistics
What are the two methods the Army developed for engaging targets?
Battle Sight Zero (BSZ) Bullet Drop Compensating (BDC)
What does the acronym DOPE stand for?
Data Of Previous Engagement