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Leupold Mark 4 Scopes - ER/T vs. LR/T

The Leupold Mark 4 series of riflescopes includes a number of high end tactical scopes; however, the ER/T (Extended Range Tactical) and LR/T (Long Range Tactical), as their names imply, are the models designed for long range shooting. While there are many similarities between the ER/T and LR/T versions there are also some important differences.

 

Leupold Mark 4 Rifle Scope

 

Similarities
30mm Tubes
These long range Mark 4 scopes, like many tactical scopes, are built on a 30mm main tube which provides more field of view and/or more adjustment range than 1” tubes. However, there is one model, an ER/T 6.5-20x50mm model that is built on a 34mm main tube. Side Note - This scope with the Horus H-58 reticle is the one being issued on the new Army XM2010 .300 Winchester Magnum sniper rifle.

Turrets
The LR/T and ER/T scopes are both available with a variety of different tactical turrets. Below is a brief description of each turret style and is an important aspect to consider when deciding on which scope model is best for you.

M1 - 1/4 MOA elevation, 1/4 MOA wind - Tall Turrets
M2 - 1/2 MOA elevation, 1/2 MOA wind - Medium or Short Turrets
M3 - 1 MOA elevation, 1/2 MOA wind – Medium Turrets
M5 - .1 Mil elevation, .1 Mil wind – Tall Turrets

Side Focus and Matte Finish
Both ER/T and LR/T modes utilize a side focus parallax correction knob on the left side of the scope when viewed from behind. Parallax adjustment on scopes of these types is a must and the nine o’clock position is generally greatly preferred over the adjustable objective style of parallax correction. Nearly all ER/T and LR/T scopes come with a matte black finish with the LR/T 3.5-10x40mm LR/T with M2 turret in a Dark Earth coloring being the only exception we could find.

 

ER/T vs LR/T

ER/T Overview ER/T 4.5-14x50 LR/T 6.5-20 x 50mm LR/T Overview

First Focal Plane Reticles

 

50mm Objectives

 

Horus Reticles Available

 

 

4.5-14x50 ER/T 6.5-20x50

Illuminated Models Avail.

 

Fixed Powered Options

 

30mm Main Tubes

ER/T Options ER/T 8.5-25 x 50mm LR/T 10 x 40mm LR/T Options

4.5-14 x 50mm


6.5-20 x 50mm (34mm tube)

 

6.5-20 x 50mm


8.5-25 x 50mm

 

8.5-25x50 ER/T

 

10x40

3.5-10 x 40mm


4.5-14 x 40mm (Target)


4.5-14 x 50mm


6.5-20 x 50mm


8.5-25 x 50mm


10 x 40mm


16 x 40mm

 


Differences
Focal Plane
One of the biggest differences between the ER/T and LR/T models is where the reticle is placed. All ER/T models have a First Focal Plane reticle meaning that the reticle will stay in proportion to the target no matter what magnification the scope is one. Only some versions of the LR/T 3.5-10x40mm versions are available with a First Focal Plane while the remainder of models in the LR/T line all have their reticle in the Second Focal Plane.

Illumination
Many of the LR/T scope models are available with partial illumination, meaning that while the entire reticle is not lit; the center part near where the crosshairs intersect is illuminated. No illuminated reticle options are available on the ER/T models.

Reticles
While some LR/T models are available with illumination, it is the ER/T scopes that feature more reticle choices. More specifically some of the long range Horus reticles are available on several ER/T models. Essentially these reticles provide a grid of holdover points in the lower part of the reticle. These reticles are not available on any of the LR/T scopes.

Magnifications and Objectives
Both the ER/T and LR/T are available in 4.5-14x50, 6.5-20x50 and 8.5-25x50; however the LR/T series is also has 3.5-10x40, and 4.5-14x40mm versions along with two fixed powered options: including two 10x40 models, and one 16x40 model. Note, that all ER/T scope models come with 50mm objectives.

Choosing a Model
With so many options and versions available selecting the one of these scopes can be a bit of a process. We have put together a guide of models, specifications, and model numbers to help you choose the model that best meets your requirements. Below are a few factors to keep in mind when selecting your Mark 4.

 

1) All ER/T models and some 3.5-10x40 LR/T models feature First Focal Plane Reticles.

 

2) Illumination is available only on some LR/T models and is not available on ER/T scopes.

 

3) The TMR (Tactical Milling Reticle) essentially has small hash marks at .5 mils, and large hash marks at 1 mils.

 

 

Mark 4 ER/T Scopes
ERT 4.5-14x50

ER/T 4.5-14x50mm

 

 

 

 

 

FOV

Eye Relief

Length

Weight

Elevation

Wind

19' - 7.6'

4.5" - 3.6"

12.5"

22oz

100 MOA

100 MOA

Model#

Turret

Focal Plane

Reticle

Estimated $

 

65490 - Buy Now

M1

FFP

Mil-Dot

$1,599

 

65495 - Buy Now

M1

FFP

TMR

$1,599

 

59345 - By Now

M3

FFP

TMR

$1,599

 

110075 - Buy Now

M5

FFP

TMR

$1,599

 

110081 - Buy Now

M5

FFP

Mil-Dot

$1,599

 

110084 - Buy Now

M5

FFP

H-27

$2,199

 

         

6.5x20-50

* Similar 30MM model Shown

ER/T 6.5-20x50mm - 34mm Tube

 

 

 

 

FOV

Eye Relief

Length

Weight

Elevation

Wind

14.3' - 5.5'

4.4" - 3.6"

14.5"

30.9oz

100 MOA

50 MOA

Model#

Turret

Focal Plane

Reticle

Estimated $

 

67810 - Buy Now

M5A2*

FFP

TMR

$2,399

 

68140 - Buy Now

M5A2*

FFP

H-27

$2,999

 

111855** - Buy Now

M5A2*

FFP

H-58

$3,099

 

*M5A2 is locking M5 Turret

 

 

 

 

**Model used on the new Army XM2010 Rifle

 

 

 

         
ER/T 6.5-20x50

ER/T 6.5-20x50mm

 

 

 

 

 

FOV

Eye Relief

Length

Weight

Elevation

Wind

14.3' - 5.5'

4.4" - 3.6"

14.5"

22oz

70 MOA

70 MOA

Model#

Turret

Focal Plane

Reticle

Estimated $

 

64660 - Buy Now

M1

FFP

Mil-Dot

$1,699

 

64665 - Buy Now

M1

FFP

TMR

$1,699

 

110076 - Buy Now

M5

FFP

TMR

$1,699

 

110082 - Buy Now

M5

FFP

Mil-Dot

$1,699

 

110086 - Buy Now

M5

FFP

H-27

$2,299

 

110087 - Buy Now

M5

FFP

H-37

$2,399

 

110562 - Buy Now

M5

FFP

H-58

$2,499

 

\          

8.5-25x50

ER/T 8.5-25x50mm

 

 

 

 

 

FOV

Eye Relief

Length

Weight

Elevation

Wind

11.2' - 4.4'

5.3" - 3.7"

14.5"

22.5oz

70 MOA

70 MOA

Model#

Turret

Focal Plane

Reticle

Estimated $

 

63050 - Buy Now

M1

FFP

Mil-Dot

$1,899

 

63055 - Buy Now

M1

FFP

TMR

$1,899

 

110079 - Buy Now

M5

FFP

TMR

$1,899

 

110083- Buy Now

M5

FFP

Mil-Dot

$1,899

 

110089- Buy Now

M5

FFP

H-37

$2,599

 

110563

M5

FFP

H-58

n/a

 

           
Mark 4 LR/T Scopes

LR/T 3.5-10x40 illuminated

illuminated model shown

LR/T 3.5-10x40mm

 

 

 

 

 

FOV

Eye Relief

Length

Weight

Elevation

Wind

29.9' - 11'

4.7" - 3.4"

13.5"

19.5oz*

65 MOA

65 MOA

Model#

Turret

Focal Plane

Reticle

Estimated $

 

52128 - Buy Now

M1

2nd

Mil-Dot

$1,199

 

60020 - Buy Now

M1

2nd

TMR

$1,099

 

58850 - Buy Now

M1

FFP

Mil-Dot

$1499

 

60030 - Buy Now

M1

FFP

TMR

$1,499

 

67930- Buy Now

M1

2nd

Mil-Dot illum.

$1,299

 

67935- Buy Now

M1

2nd

TMR illum.

$1,299

 

67940- Buy Now

M2**

2nd

TMR illum

$1,499

 

51850 - Buy Now

M3

2nd

Mil-Dot

$1,199

 

60025 - Buy Now

M3

2nd

TMR

$1,199

 

58860 - Buy Now

M3

FFP

Mil-Dot

$1,599

 

60035 - Buy Now

M3

FFP

TMR

$1,599

 

67945 - Buy Now

M3

2nd

Mil-Dot illum.

$1,399

 

67950 - Buy Now

M3

2nd

TMR illum.

$1,399

 

110074 - Buy Now

M5

FFP

TMR

$1,499

 

110080 - Buy Now

M5

FFP

Mil-Dot

$1,499

 

*illuminated models 20.5oz

 

 

 

 

**Dark Earth Finish

 

 

 

 

 

         

LR-T 4.5-14x40 Target

Capped Turrets

LR/T 4.5-14x40mm

 

 

 

 

 

FOV

Eye Relief

Length

Weight

Elevation

Wind

18.6' - 7.3'

4.4" - 3.7"

12.6"

16oz

100 MOA

100 MOA

Model#

Turret

Focal Plane

Reticle

Estimated $

 

56130 - Buy Now

Target - Capped

2nd

Mil-Dot

$899

 

56140 - Buy Now

Target - Capped

2nd

Duplex

$749

 

         

4.5-14x50

LR/T 4.5-14x50mm

 

 

 

 

 

FOV

Eye Relief

Length

Weight

Elevation

Wind

19' - 7.6'

4.5" - 3.6"

12.5"*

22oz**

100 MOA

100 MOA

Model#

Turret

Focal Plane

Reticle

Estimated $

 

67955 - Buy Now

M1

2nd

Mil-Dot illum.

$1,399

 

67965- Buy Now

M1

2nd

TMR  illum.

$1,399

 

54560 - Buy Now

M1

2nd

Mil-Dot

$1,249

 

60005 - Buy Now

M1

2nd

TMR

$1,249

 

54660 - Buy Now

M1

2nd

Duplex

$1,099

 

*illuminated models 12.8"

 

 

 

 

**illuminated models 23oz

 

 

 

 

         

LR/T 6.5x20x50 illuminated

illuminated model shown

LR/T 6.5-20x50mm

 

 

 

 

 

FOV

Eye Relief

Length

Weight

Elevation

Wind

14.3' - 5.5'

4.4" - 3.6"

14.5"*

22oz**

70 MOA

70 MOA

Model#

Turret

Focal Plane

Reticle

Estimated $

 

67970 - Buy Now

M1

2nd

Mil-Dot illum.

$1,499

 

67975 - Buy Now

M1

2nd

TMR illum.

$1,499

 

54680 - Buy Now

M1

2nd

Mil-Dot

$1,299

 

60080 - Buy Now

M1

2nd

TMR

$1,299

 

*illuminated models 14.4"

 

 

 

 

**iluminated models 23oz"

 

 

 

 

         

LRT 8.5-25x50 illuminated

illuminated models shown

LR/T 8.5-25x50mm

 

 

 

 

 

FOV

Eye Relief

Length

Weight

Elevation

Wind

11.2' - 4.4'

5.3" - 3.7"

14.5"*

22.5oz**

70 MOA

70 MOA

Model#

Turret

Focal Plane

Reticle

Estimated $

 

54690 - Buy Now

M1

2nd

Mil-Dot

$1,399

 

60070 - Buy Now

M1

2nd

TMR

$1,399

 

67980 - Buy Now

M1

2nd

Mil-Dot illum.

$1,599

 

67985 - Buy Now

M1

2nd

TMR  illum.

$1,599

 

113092 - Buy Now

M5

2nd

TMR illum.

$1,599

 

*illuminated models 14.4"

 

 

 

 

**illuminated models 23.5oz

 

 

 

 

         

LRT 10x40

LR/T 10x40mm

 

 

 

 

 

FOV

Eye Relief

Length

Weight

Elevation

Wind

11.1"

3.4"

13.1"

21oz

90 MOA*

60 MOA**

Model#

Turret

Focal Plane

Reticle

Estimated $

 

48431 - Buy Now

M1

2nd

Mil-Dot

$1,399

 

47638 - Buy Now

M3

2nd

Mil-Dot

$1,499

 

* M3 model has 75 MOA Elevation

 

 

 

 

** M3 model has 52 MOA Wind

 

 

 

 

         

LRT 16x40

LR/T 16x40mm

 

 

 

 

 

FOV

Eye Relief

Length

Weight

Elevation

Wind

6.8'

4"

13.1"

22.5oz

140 MOA

45 MOA

Model#

Turret

Focal Plane

Reticle

Estimated $

 

50541 - Buy Now

M1

2nd

Mil-Dot

$1,599

 

 

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