50 cal rifle perhaps?
Muzzle velocity 853 m/s (2,799 ft/s) = 1908.409 MPH
Longest recorded sniper kill 3,871 yd = (over 2 miles away)
https://en.wikipedia.org/wiki/Longest_recorded_sniper_kills
Reports regarding the longest recorded sniper kills that contain information regarding the shooting distance and the identity of the sniper have been presented to the general public since 1967. Snipers in modern warfare have had a substantial history following the development of long distance weaponry. As weapons, ammunition, and aids to determine ballistic solutions improved, so too did the distance from which a kill could be targeted. In mid-2017 it was reported that an unnamed Canadian special forces operator, based in Iraq, had set a new record of 3,540 m (3,871 yd), beating the record previously held by British Corporal Craig Harrison at 2,475 m (2,707 yd).
https://en.wikipedia.org/wiki/Barrett_M82
The Barrett M82A1 rifle was used in 2002 as a platform for the experimental OSW (Objective Sniper Weapon) prototype. This weapon was fitted with a shorter barrel, and fired 25mm high-explosive shells developed for the 25×59 mm OCSW
(Objective Crew Served Weapon) automatic grenade launcher. The experimental OSW showed an increased effectiveness against various targets, but the recoil was beyond human limitations. This weapon, also known as the Barrett “Payload Rifle”, has now been designated the XM109.
Yes, something along that line. (Of course, another angle, the object could have stuck a sticky charge on it in a first pass and waited until systems were pumping and running to return in range to signal it’s activation.)
Vertical targets in no wind or easily observed wind are easy to hit too, you essentially can forgo getting anal on the drop if the object is equally vulnerable along the length. I can hit golf tees, cut strings, blade split two targets etc... all day long out to 60 yards with my competition air rifle in no wind (but wind is a project for me in a match).
People size targets probably start to lose their “Verticaliness” out around a thousand yards and that, I believe, is where the real sniper wizardry comes into play, especially since I believe most of them stick to scopes under 25-30X magnification because the bigger ones aren’t super field hardcore and if it goes off it’s iron sights time.
The Falcon is 12 feet in diameter, I’m pretty sure I could plug it from over a mile away with 2 or 3 of my regular rifles. Smart optics would be good insurance though and .338 or larger would retain penetrating energy.