I know this is an age old argument, but does a few ounces really make or break your set up? Certainly a few ounces isn't the difference between climbing the next hill or walking a few miles deeper in? You can get reliable scopes (SWFA 3-9, 6x, or NF SHV, NXS 3-10, S&B Klassic) to get the job done in the 19-21 ounce range, which is only a bit more than any "lightweight" offerings you'd find in similar X range scopes. There's plenty of ways to cut weight off your rifle to get a rig in the 8-9lbs all up range, which seems a good weight to settle in and steady up for longer shots anyway.
I sacrificed to the weight gods in scope selection with poor results in the past. Now I take the weight penalty to get something reliable. I actually don't mind anything up to about 28-30 ounces. To me that little bit just isn't a deal breaker in actual use.
scope weight used to be one of the main "features" i was shopping for... and of course "good glass" i never understood why because i never understood how it could have any real effect in the woods unless it was pretty bad, but boy howdy i still wanted it.... goes for a lot of things "lightweight"
i have learned through trial and error, some weight is just worth packing... most of my rifle hunting is day hunting anyhow, and my day pack is always 7-10# heavier than it actually needs to be... i just don't care in that context, my body adapts to carrying the weight every day. the lightest i weighed my pack last year was 24# day hunting archery roosies, the heaviest was 38# day hunting rifle blacktail, i think i carried around 25 rounds of 6.5creed the whole archery season, haha... we were moving and i didn't want to lose my little ammo pouch.
i don't know how much meat i actually had on my pack when i killed my buck last year, but without my rifle or pistol on the pack, it was 103#, it was a big bodied old buck, bone in, but it was still just a blacktail, and not a freakishly big bodied one, it was just your normal 6 year old buck, which means i was packing a lot of shit i didn't need... a few ounces for a scope that's reliable is a no brainer, unless i'm in some really bad terrain and risk falling, my rifle stays in a gun bearer as i'm moving through country, so i seriously doubt it's even noticeable to carry.... when my wife is with me and we are trying to find something for her to shoot, i pack the rifle as well, so it just doesn't matter.... i am still having a hard time considering 30+oz scopes for my lightweight rifle, considering the hunting i do, but it's not out of the question.... closer to 20oz is better, but i will gladly carry a little extra weight in trade for confidence, that's far more valuable to me.
i had shot my rifle a couple days prior to killing my buck this year, it was 315yds, and i was completely confident in making the shot without question, but i wasn't confident that the scope was shooting where i left it... luckily it was, but i'm over that... it is crazy what some are willing to compromise for a few ounces.
i do like a light bow (shoot a mach 1) but it's a fine match for what i do, which is shooting elk sub 20yds... don't need a target rig for that. i shoot it regularly and well to 80yds, but the vast majority of my elk have been and will be sub 20yds, so packing a heavy bow doesn't make sense, and i don't have to compromise reliability, my rest and sight are heavy, but it's still a light setup (like putting a heavy-ish scope on a light rifle)