If you could pick one of these for a hunting rifle, which would you pick and why?
eye relief and reticle plane location are 2 differences....
<span style="font-weight: bold">Swaro Z6 1.7-10x42</span>
rear focal plane etched reticle
Magnification
1.7-10x
Objective Lens Diameter
42mm
Angle of View
14.4-2.4°
Field-of-View (@ 1000 Yds)
1.7x: 75.6' (25.2m @ 100m)
10x: 12.6' (4.2m @ 100m)
Dioptric Correction Range
-3/+2
Exit Pupil Diameter
1.7x: 9.6mm
10x: 4.2mm
Eye Relief
3.74" (95mm)
Filter Size
44mm
Impact Point Correction per Click
0.36 MOA (10mm @ 100m)
Maximum Elevation/Windage Adjustment
Windage: 54 MOA
Elevation: 54 MOA
Relative Brightness
1.7x: 92.1
10x: 17.6
Twilight Factor
1.7x:  8.5
10x:  20.5
Weatherproofing
Waterproof and fog proof
Dimensions
Length: 12.87" (327mm)
Weight
1.04 lb (470g)
<span style="font-weight: bold">Zeiss Victory 2.5-10x42</span>
Front Focal Plane Etched Reticle
Magnification
2.5-10x
Objective Lens Diameter
42mm
Angle of View
8.3-2.3°
Field-of-View (@ 100 Yds)
2.5x: 43.5' (144 m at 1000 m)
10x: 12' (40 m at 1000 m)
Dioptric Correction Range
-3 to +2
Exit Pupil Diameter
2.5x: 15.0 mm
10x: 4.2 mm
Eye Relief
90mm
Filter Size
Not specified by manufacturer
Impact Point Correction per Click
0.36" per 100 Yards (10 mm per 100 meters)
Maximum Elevation/Windage Adjustment
3.7' per 100 Yards (1.2 m per 100 m)
Relative Brightness
2.5x: 225.0
10x: 17.7
Twilight Factor
2.5x: 66.4
10x: 133.0
Weatherproofing
Waterproof & Fogproof
Dimensions
12.3" (312 mm) in Length
Weight
0.97 lb (439 g)
eye relief and reticle plane location are 2 differences....
<span style="font-weight: bold">Swaro Z6 1.7-10x42</span>
rear focal plane etched reticle
Magnification
1.7-10x
Objective Lens Diameter
42mm
Angle of View
14.4-2.4°
Field-of-View (@ 1000 Yds)
1.7x: 75.6' (25.2m @ 100m)
10x: 12.6' (4.2m @ 100m)
Dioptric Correction Range
-3/+2
Exit Pupil Diameter
1.7x: 9.6mm
10x: 4.2mm
Eye Relief
3.74" (95mm)
Filter Size
44mm
Impact Point Correction per Click
0.36 MOA (10mm @ 100m)
Maximum Elevation/Windage Adjustment
Windage: 54 MOA
Elevation: 54 MOA
Relative Brightness
1.7x: 92.1
10x: 17.6
Twilight Factor
1.7x:  8.5
10x:  20.5
Weatherproofing
Waterproof and fog proof
Dimensions
Length: 12.87" (327mm)
Weight
1.04 lb (470g)
<span style="font-weight: bold">Zeiss Victory 2.5-10x42</span>
Front Focal Plane Etched Reticle
Magnification
2.5-10x
Objective Lens Diameter
42mm
Angle of View
8.3-2.3°
Field-of-View (@ 100 Yds)
2.5x: 43.5' (144 m at 1000 m)
10x: 12' (40 m at 1000 m)
Dioptric Correction Range
-3 to +2
Exit Pupil Diameter
2.5x: 15.0 mm
10x: 4.2 mm
Eye Relief
90mm
Filter Size
Not specified by manufacturer
Impact Point Correction per Click
0.36" per 100 Yards (10 mm per 100 meters)
Maximum Elevation/Windage Adjustment
3.7' per 100 Yards (1.2 m per 100 m)
Relative Brightness
2.5x: 225.0
10x: 17.7
Twilight Factor
2.5x: 66.4
10x: 133.0
Weatherproofing
Waterproof & Fogproof
Dimensions
12.3" (312 mm) in Length
Weight
0.97 lb (439 g)