Athlon APMR1 FFP IR MIL User manual

APMr1 ffp ir mil
Reticle
manual

Application: Long and Mid Range Shooting for both Tactical and Hunting
ATHLON ® APMR1 FFP IR MIL Reticle
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Note: The reticle image shown above may appear differently among
different models due to different magnification and location of the reticle.
APMR1 FFP IR MIL reticle is designed for long and mid-distance
shooting with illuminated center cross and 0.5 mil hash mark, that
can help you quickly lock in your target and set holdover positions
and leads for a moving target. The illuminated 4 mil span center cross
with 0.5 mil hash mark and extended 5 mil marks on both horizontal
and vertical cross lines provide an unique two layer visual reference
that helps the shooter quickly locate the target and find a holdover
position within a blink of an eye. The illuminated portion of the
reticle provides excellent low light visibility and accurate elevation
holdovers all the way up to 10 mils with .5 mil marks incremental.

Reticle Subtensions in Mil
Reticle Subtensions
The APMR1 FFP IR MIL reticle is based on the milliradian,
usually shorterned to mrad or mil. A “mil” is defined as “one
thousandth”, or 1/1000. A mil is 1/1000 of a radian ( a unit of
angular measurement). Since there are 6.2832 radians in a
circle, and each radian is chopped up into a thousand pieces,
there are 6.2832 x 1000 = 6,283.2 mils in a circle. Since there
are 360 degreee in a circle, we can get 360 degree/6,283.2
mils=0.573 degree/mil. If the target is 100 yards ( 3600 inches)
away, we can use 3600 Tan (Radians(.0573 degree)) to get 3.6
inches which means 1mil equals to 3.6 inches at 100 yards
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Example
A1
A2
B1
B2
B3
C2
C1 C3
The APLR1 FFP IR MIL reticle is located at the focal plane in
the front of the erector tube which is a key part of achieving
variable power inside the riflescope. Size of the first focal plane
reticle grows or shrinks at the same ratio with the changing size
of the image of your target when you try to zoom in or zoom
out. Since the size of the reticle remains constant compared to
your target regardless of the magnification, the first focal plane
reticle provides ranging capability and valid holdover points at
all power settings, and finer details of the reticle at high power
for a shooter to engage a target with a higher level of precision
and confidence.
A1 A1 A2 B1 B2 B3 C1C1 C2 C3
15x 0.04 0.5 0.2 0.4 0.8 1 0.5
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Reading a 3-foot target (1 yard) at 2 mils gives 500 yards
Example
= 500 yards
Height of Target (Yards) x 1000
Mils Reading on Reticle Distance to Target (Yards)
=
Because the actual or at least closest estimate of the height of
your target is the key part of above equations, you have to
know the height of your target or heights of other objects
nearby your target that are known to you.
As you can see the actual reading of your target is another key
variable in those equations, you want to put your rifle on a
steady rest as much as possible so you could get an accurate
reading. If needed using the smallest measurement on the
reticle to get the most accurate readings.
Height of Target (Meters) x 1000
Distance to Target (Meters)
=
Height of Target (Inches) x 27.8
Distance to Target (Yards)
=
Distance Ranging
Equations for ranging distance to a target using mils
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Mils Reading on Reticle
Mils Reading on Reticle
1 yard x 1000
2 mils

3 mil / 54 inch holdeover for a target at 500 yards out. No wind.
Example
Holdover For Compensating Bullet Drop
To be able to use the elevation holdovers effectively, you have to
know the distance to your target and bullet trajectory (bullet drop
in inches or mils). Since most of bullet balistic chart highlight
bullet drops in inches, you have to know that, 1mil equals to 3.6
inches at 100 yards, 7.2 inches at 200 yards, and 36 inches at 1000
yards, etc.
For example, under no wind condition, if you knew your target is at
500 yards and your ammo has a 54 inch bullet drop at that distance,
you want to use 3 mil holdover point. Here is how you got the 3
mil: since 1 mil equals to 3.6 inches x 5 =18 inches at 500 yards,
and then 3 mils equal to 3 x 18 inches =54 inches at 500 yeards,
you want to hold the 3 mil drop point to compensate the 54 inch
bullet drop.
To achieve ultimate precision, it is always a better idea to develop
your own D.O.P.E (Data of Previous Engagement )chart so that
you can refer back to it for specific bullet drop compensation under
different ambient environment and weather condition.
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Example
Holdover for Wind Correction
The APMR1 FFP MIL reticle offers 8 mil span in hash
marks from center to left and right, up (9 mils) and down.
the APMR1 FFP MIL reticle provides great visual reference
to allow you to spot your target in no time.
The flying time of a bullet, the velocity and direction of the wind
and the “slippery-ness” of the bullet expressed in BC (Ballistic
Coefficient) determine your holdover for wind correction. Once
again you have to understand the impact of those three factors
on your bullet's flying path in terms of inches or mils and
calculate how much holdover you have to hold, and then finding
the corresponding holdover position on the reticle is a much
easier task to accomplish.
910
2 mil wind correction for 15 mph wind from right to left at 500 yards.
Elevation turret has been dialed up to compensate bullet drop, just
simply use center horizontal cross line to holdover for wind correction

Use a virtual cross point for wind correction and bullet
drop As an alternative, you can use a virtual cross point
formed by horizontal and vertical hash mark to holdover for
both wind correction and bullet drop.
Hold lead correction for a moving target
Distance to your target, moving speed of your target, bullet flying time,
wind direction are the key factors that determine how much holdover
you need to hold for a moving target. As a rule of thumb, you always
hold the lead for the net distance of your target moved ( add or substract
holdover for wind correction) during the time span your bullet travelled.
2 mil lead holdover for a moving target travelling at 2 mph from left to
right at 500 yards. Bullet flight time is 1 second during which the target
travelled 2.94 feet. No wind.
Example
Use 3 mil to compensate a 54 inch bullet drop for a target at 500 yards,
2 mil wind correction for 15 mph wind from right to left.
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Example

THE ATHLON GOLD MEDEL LIFETIME WARRANTY *
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Your Athlon product is not only warranted to be free of defects
in materials and workmanship for the lifetime of the product.
Athlon will also repair or replace, at no charge to you, your
product if you should damage it through normal use. No receipt
is needed, no registration is required. This is a commitment that
Athlon Optics will be the best product you can buy for your
money.
This warranty does not cover damages caused by deliberate damage,
misuse, theft or maintenance provided by someone other than the
Athlon Authorized Service Department.
*