Good lord...30 oz. Those things must be built like tanks. Good looking scopes though.
There are some pretty uninformed or uneducated comments here that are really confusing.
The 34mm tubes are what make more elevation possible, but the exterior of the tube isn't the end of the story, as I'll point out later. More elevation travel isn't required for most of you, so you can just move along, these optics aren't for you. I know for me personally, I normally wouldn't even consider an optic if I can't get 100 MOA minimum.
As soon as you rocket scientists can figure out how to make GLASS lighter weight, you'll be millionaires. Changing a scope's exterior materials isn't going to make more than a couple ounces difference, steel or aluminum to Ti or carbon fiber might only amount to a couple oz overall.
It's the glass that makes the weight.
The reason they went with a bigger tube, is so they could offer a more durable tube...with close to the same amount of elevation travel. This is just an example, but consider that they made the INTERNAL dimensions, the same as a 30mm optic would have, which would explain why the 5-25 model has 90 MOA of travel, (compared to the 5.5-22 NF) which has 100 MOA of travel. By doing this, they can beef up the tube's wall thickness 2mm for a total of 34mm diameter.
This gives them a stronger tube, with nearly the same mount of internal adjustment and is still LIGHTER than the NF ACTAR.
It's not out of line, not uncommon, and not gonna change. Glass isn't going to get any lighter. If you want a lighter scope, get fixed power.
Burris 5-25 XTR II is 32.1 oz
Nightforce 5-25 is 38 oz
Bushnell 4.5-30 XRS is 37 oz
Bushnell 6-24 ERS is 27 oz
Leupold 3.5-25 Mk 8 is 37 oz
Vortex Razor 5-20 is 35.2 oz
Premier 5-25 is 39 oz
S&B 5-25 is 38 oz
Hensoldt 6-24 is 30 oz