: new variation of the .45-70 cartridge was produced, the .45-70-500, which fired a heavier 500 grain (32.5 g) bullet. The heavier 500-grain (32 g) bullet produced significantly superior ballistics, and could reach ranges of 3,500 yards (3200 m), which were beyond the maximum range of the .45-70-405. While the effective range of the .45-70 on individual targets was limited to about 1,000 yards (915 m) with either load, the heavier bullet would produce lethal injuries at 3,500 yards (3,200 m)."

I've fired a .45-70, and while it kicks like a 10ga, it was pretty accurate at 300yds, albeit with a ton of bullet drop. IIRC, I did one group off a rest under 3". One of you gun gurus 'splain it to me...

Wiki:

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