So, yes, February of last year. Additional info at 75 rounds of practice ammunition found under home on SW Side shows:
"A contractor was replacing pipes on Saturday and found a case of practice explosives under the home.Inside the box were 75 rounds of practice 40-caliber ammunition.
A 300 foot radius was established around the home, and people in the six homes nearby were evacuated."
40 year old ammo? That would be (allowing for the story is a year old and I'm sure there's thread on it here somewhere from then) 1976. I was 16 years old and .40 cal was at least what, 15 years in the future? Don't think SAPD would get excited over .40 cal anyway. So likely 40 mm and a reporter that has no clue and didn't understand what he or she was told.
Also, this is the second recent thread that references a story that's a year or more old. Did Indiana run out of news or something so we have to recycle?