Magnetic Bomb!

From Author Wars - https://authorwars.com/books/magnetic-bomb-2286611.html

Overview:

Title: Magnetic Bomb!
Author: Lee Owens
Year: 1950
Type: Short Fiction

Editions/Publications:

Unknown. Fantastic Adventures, July 1950 (Unknown, Lee Owens, Ziff-Davis Publishing Company, $0.25, 164 pages, pulp, MAGAZINE)