There’s a guy on YouTube (Tnoutdoors9) with a video shooting an iron-sighted 43 Inland from a bench rest at an 18” x 24” plate, 300 yards out. Surprised at some of the accuracy he achieved. I’ve never tried mine for accuracy past 100 yards but have taken two deer with it, one at 45 paces, the other at 74 paces. Neither went 20 feet after hit.
BTW my paces average 3 feet.
M1 carbines sure went up in price the past year. At 30-plus cents a round on sale I don’t see surplus ammo as being cheap. Glad I roll my own.