Bushnell Elite 6500 are great scopes, well designed and made, but not exactly light weight. Mid weight would be a better description, though at least classically proportioned.
Sidewinders pretty great too, but they are bulky/massive lump things.
I'm a fan of both on the right rifle.
30mm tubes are in fashion at present, but don't add much of anything to performance. 1" are slimmer and the old Leupolds had superb performance. They look right too on sporting lighter weight rifles too. I just say some big scopes look ridiculous and throw the balance off of lighter sportier rifles, ruin a good rifle.
Sure there is a need for a scope to be technical enough to do the job wanted, but then the same can be said of the rifle and its design. Is it me or are many modern rifles just bulked up, chunky, and for what? Its not as if big rifles give more power, just weight which might give advantages for their target orientated job.
Much of this bulk and weight is because of the "target" influence, and that precision is what matters. Few shoot standing unsupported now, when not so long ago no one would think of sitting in the cow manure to take a perfect shot. How sanitised its all become.
A lot of modern rifles are fugly and many a scope fugly to match.
For air rifle and .22 rimfire then parallax, for any magnification over about x6, is pretty important to get that crisp image at such short ranges. This does add more bulk to a scope be it the side turret or objective ring. Some designs are just more neatly done, though if you need a whopping big wheel then slim and trim isn't important as rangefinding by parallax focus is more so with x30 mag.
What is the the point of some massive all featured scope on a BSA Mucury or FWB Sport?
Again if the scope looks in proportion to the rifle, the combo looks right, then it is probably right. Having said that, that doesn't mean the scope is any good. Quality design and glass is what makes a great scope, just find one in the right proportion to the rifle, or put together a combo for the actual purpose/features wanted. Why I have more than one rifle. They all look good too