Margaret Murdock's achievement in the 1976 Olympics was significant for several reasons. At the Montreal Games, she became the first woman to win a medal in Olympic shooting. Competing in the small-bore rifle, three positions event (which was open to both men and women), she won a silver medal.

What is particularly noteworthy is that she tied with the gold medalist Lanny Bassham in terms of score. However, due to the rules, a tie-breaking procedure placed her in the silver position. Bassham, in a gesture highlighting the significant nature of her achievement, invited Murdock to join him on the gold medal podium during the award ceremony.

Her success in a traditionally male-dominated sport not only demonstrated her skill but also paved the way for greater gender equality and representation in Olympic shooting competitions. Margaret Murdock's achievement was a milestone in sports history, showcasing the evolving landscape of gender roles in athletics.