good info for the ruger american ranch's and likely other american models also, i ran 1" weaver lows on the factory rail and was able to clear 40mm trijicon 3-9x40 accupoint, but i ditched the rings and the factory rail in favor of Talley Lightweights in 1" low and saved 3 oz, scope height identical with both set ups
as for scopes, was diehard leupold forever, now liking illuminate dot for aging eyes and intuitive hunting aiming, tried out a trijicon 3-9x40 accupoint green dot duplex and it's amazing, have started the migration to these, this scope is only 13.4 oz and does quite a bit, these are a level above your typical vx3 level of leupold scopes, glass/adjustments all nicer, you can get kenton speed dial turret for dial ups, the downside is there's only 12 moa per revolution vs the 15 moa per revolution you get from leupold, even still on a slow 6.5 Grendel with 200 yard zero you can still dial to just over 500 yards in one rotation, my kenton speed dial turret the last mark is a 5 (for 500 yards) as it comes about about the 45 click mark of the 48 clicks in a rotation...hornady black is the ammo i run
leupold vx3hd lineup is amazing for non-illuminated, the cds-zl turret is best on the market for the dial up, if they could add the fire dot to those 1" tube scopes then that would be awful tough to beat, i love the green on the trijcon though, it's brighter and more visible to me than red, just like bowsights...green best, red second best, yellow a distant 3rd for fiber optic pin visibility
i have a leupold fxII 6x36 that weighs less than rated, mine only goes 9.5 oz on my scale and that's including having Korth put a cds-zl elevation turret on it...otherwise the 2.5-8x36 in vx3hd would be a top pick in talley lightweight 1" low rings for these ruger american ranch rifles...2 oz for rings, about 11.5 oz for scope, as it is with my 3-9x40 trijicon my rings/scope combo is only 15.5 oz but have to say i really like that magnifcation range, the scope on 9x makes the dot about 1.2 to 1.3 moa, at 425 yards on my 15" gong the dot covers what appears to be 4-5" of the gong, it will center on a coyote out to 500 pretty easily, big game not an issue at all, i was worried about dot size and precision for what i do so i had to field this scope in sunny winter snow conditions calling coyotes to see, as well as some gong work at distance and it's won me over, my kid ended up shooting a black bear facing him at 10 yards and the green dot helped him place it for sure as that would have been a lot of black in the scope!
so, i've tried to find leupold that can compete with the 3-9x40 accupoint in weight with illumination and i can't...when they can then i would consider coming back to leupold but that green dot is hard to give up, get it right leupold, don't just always offer red dot models, the green is awesome, add some fire dots to that vx3hd line up with 1" tubes and we will be looking at you again, until then trijicon accupoint, it's the most you can do for under 1 lb scope options