As far as thier illuminated scopes go...here's the closet I could find on their web site ...you'll have to pick the scope...but this one would work for you and your 45-70
http://www.leupold.com/products/products_specs.aspVX-III 1.5-5x20mm Illuminated Reticle
Select a Finish & Reticle Style:
Part No. 54906
Product Specifications
Actual Magnification: 1.5(1.5x) 4.5(5x)
Length (in): 9.3
Eyepiece Length (in): 3.2
Objective Length (in): -------
Objective Diameter (in): 1.0
Eyepiece Diameter (in): 1.6
Tube Diameter: 30mm
Weight: 14.0 oz. / 397 grams
Eye Relief (in): 4.4(1.5x) 3.6(5x)
Eye Relief (mm): 113(1.5x) 93(5x)
Obj. Lens Diameter: 0.8in / 20mm
Max. Adjustment @ 100 yds (in): 65
Max. Adjustment @ 100 m (cm): 181
FOV @ 100 yds (ft): 65.7(1.5x) 23.7(5x)
FOV @ 100 m (m): 21.9(1.5x) 7.9(5x)
Ring Spacing
Max. Mount Ring Spacing
(in): 5.8
Front Ring Space (in): 2.1
Rear Ring Space (in): 2.5
Looks like it would be a winner for the 45-70
I haven't had that much experiance with the illuminated scopes...just red dot sites...
Mac