Here's my long-gone 1000-yard 'light' benchrest rifle. Weighed just under 17 pounds.
BAT dual-port single-shot action, 28" (?) barrel, chambered in 6.5-284 Shehane, a mildly improved 6.5-284...
...12-42 Nightforce scope, Shehane stock. This was its original barrel, with muzzlebrake. Barrels 2 and 3 didn't have a MB.
Shot this for about 1.5 years; finally ran out of emotional energy. (For instance, the closest 1000-yard range was 2 hours away.) Got hot one day and won best light-rifle group, best heavy-rifle group, and best heavy-rifle aggregate score. That day, I shot a 5-shot group that measured 4-9/16"...from 1000
It was all downhill from there.
...are a few 3-shot, 200-yard load-evaluation groups.
Lest you think 1000-yard shooting is easy with a jillion dollars of equipment, here's what the target butts looked like.
27mm (35e) lens:
80mm (35e) lens:
136mm (35e) lens:
This was a borrowed rifle and, in fact, everything.
One day, with about a half-dozen of us watching and helping, one shooter with a rifle zeroed initially at normal distance (for instance, 200 yards) NEVER got one shot on the target, which are 42 inches square. (Those are target-position numberboards, [about 8 feet square IIRC] in the pics, not targets.)