R/t r, Hd r/t – Vortex Optics VIPER HD 10X50 R/T TACTICAL ROOF PRISM BINOCULAR — R/T Ranging Reticle User Manual
Page 5
HD R/T
BINOCULAR
9
8
The R/T reticle is based on a form of angular measurement called
the milliradian (mrad for short). The angular measurements allow
a user to calculate ranges
when comparing the
reticle to objects of known
dimensions. The key to
effective ranging, using
this reticle, is knowing the
measurements of objects
that are commonly seen in
the vicinity.
u
sing
The
V
iper
r/T r
anging
r
eTicle
Reading the R/T Reticle
Fine crosshairs
subtend .05 mrad.
Heavy crosshairs
subtend .5 mrad.
1 mrad subtension marks
.5 mrad subtension marks
.5 mrad
1 mrad
28cm / 11”
50cm / 20”
35cm / 14”
44cm / 17”
79cm / 31”
All silhouette dimensions are accurate
at these ranges listed in meters.
The Viper HD R/T reticle
features a secondary system of
of silhouettes for quick ranging
(see page 12).
Subtensions
- RAZOR HD GEN II 4.5-27X56 RIFLESCOPE (11 pages)
- RAZOR HD GEN II 3-18X50 RIFLESCOPE (9 pages)
- RAZOR HD GEN II 4.5-27X56 RIFLESCOPE (9 pages)
- RAZOR HD GEN II 1-6X24 RIFLESCOPE — VMR-2 Reticle (8 pages)
- RAZOR HD GEN II 1-6X24 RIFLESCOPE — VMR-2 Reticle (10 pages)
- CROSSFIRE II 6-24X50 AO RIFLESCOPE (9 pages)
- CROSSFIRE II 3-12X56 AO HOG HUNTER RIFLESCOPE (9 pages)
- CROSSFIRE II 1-4X24 RIFLESCOPE (9 pages)
- CROSSFIRE II 6-18X44 AO RIFLESCOPE (9 pages)
- CROSSFIRE II 1X24 MUZZLELOADER SCOPE (8 pages)
- DIAMONDBACK 4-12X40 AO RIFLESCOPE (4 pages)
- DIAMONDBACK HP 4-16X42 RIFLESCOPE (9 pages)
- VIPER 3.5-10X50 RIFLESCOPE (9 pages)
- VIPER 6.5-20X50 PA RIFLESCOPE (7 pages)
- VIPER HS 4-16X50 LR RIFLESCOPE (11 pages)
- VIPER HS 6-24X50 RIFLESCOPE (9 pages)
- VIPER XBR 2.5-10X44 CROSSBOW SCOPE (15 pages)
- VIPER HS LR 4-16X50 RIFLESCOPE — First Focal Plane (11 pages)
- VIPER HS LR 4-16X50 RIFLESCOPE — First Focal Plane (9 pages)
- VIPER HS LR 2.5-10X32 RIFLESCOPE — First Focal Plane (9 pages)
- VIPER HS-T 4-16X44 RIFLESCOPE (11 pages)
- VIPER PST 2.5-10X32 FFP RIFLESCOPE (13 pages)
- VIPER PST 2.5-10X44 RIFLESCOPE (9 pages)
- VIPER PST 6-24X50 FFP RIFLESCOPE (9 pages)
- VIPER PST 4-16X50 RIFLESCOPE (9 pages)
- VIPER PST 4-16X50 FFP RIFLESCOPE — First Focal Plane (9 pages)
- VIPER PST 6-24X50 RIFLESCOPE (9 pages)
- VIPER PST 2.5-10X32 FFP RIFLESCOPE (9 pages)
- VIPER PST 1-4X24 RIFLESCOPE (9 pages)
- VIPER PST 1-4X24 RIFLESCOPE (13 pages)
- RAZOR HD 5-20X50 RIFLESCOPE — First Focal Plane (7 pages)
- RAZOR HD 5-20X50 RIFLESCOPE — First Focal Plane (13 pages)
- RAZOR HD 5-20X50 RIFLESCOPE — First Focal Plane (8 pages)
- RANGER 1000 RANGEFINDER WITH HCD (11 pages)
- VMX-3T MAGNIFIER (7 pages)
- SPITFIRE 1X PRISM SCOPE (8 pages)
- SPITFIRE 3X PRISM SCOPE (9 pages)
- VORTEX STRIKEFIRE RED DOT SCOPE (9 pages)
- STRIKEFIRE II RED DOT (8 pages)
- SPARC RED DOT SCOPE (9 pages)
- SPARC II RED DOT (8 pages)
- RAZOR RED DOT — 6 MOA Dot (3 pages)
- RAZOR HD 85MM 30X EYEPIECE — MOA Ranging Reticle (1 page)
- DIAMONDBACK 20-60X60 SPOTTING SCOPE (7 pages)
- VIPER HD 20-60X80 SPOTTING SCOPE (5 pages)