Utah man sets iron sight shooting record with 2240 yard shot.
Ernie Jimenez used an unmodified K31 Swiss 7.5x55mm Swiss rifle to set the official Guiness World Record for longest open sight shot.
He was aiming at a 36″ pink buffalo target 2240 yards away. For this incredible shot, Ernie used 190 grain Sierra Match King rounds firing at 2470 fps. It takes dozens of shots, but Ernie managed to strike the target four times.
Wikipedia: “The Karabiner Model 1931 (K31) is a magazine-fed, straight-pull bolt-action rifle. It was the standard issue rifle of the Swiss armed forces from 1933 until 1958, though examples remained in service into the 1970s. It has a 6-round removable magazine, and is chambered for the 7.5×55mm Swiss (also known as Gewehrpatrone 1911, GP11, or unofficially 7.5×55mm Schmidt–Rubin), a cartridge with ballistic qualities similar to the 7.62×51mm NATO/.308 Winchester cartridge.”
The video below, made by the Long Range Shooters of Utah, shows Ernest Jimenez setting a new long-range record for shots with an open sight rifle, firing at a 36-inch (.9144 m.) pink bison target posted 2,240 yards (2048.256 m.) away.
Mr. Jimenez was using an unmodified Swiss K31 rifle which he originally purchased for $99. You can buy one of these today for a bit over $300. (Classic Firearms has them.)
Mr. Jimenez scored 4 hits in the course of firing something like 83 shots. (Of course, a lot of his misses came awfully close.) On a completely windless day, he would likely have done better.
Personally, I think you could do as well, or better, using a 1903 Springfield.