Good observations about it not replacing the larger bores. No need for it to. They should not be in competition with one another, like I so often hear implied. The .410 has a niche, in which it does just as well as any other gauge/bore. Many want to try to make it into a long range gun, which it can never be. Long range for a .410 with lead shot is + or - 35 yards.

Comparing it to a 12 bore at 55 yards is like comparing a bow to a rifle at 200. Both are deadly inside their "sphere of influence", not so much outside it.

SRH

May God bless America and those who defend her.