Fwiw, how I found out the OP’s times weren’t particularly stringent - I simply tried it, as close as my setup will allow. I only have one silhouette target instead of two, so used a much smaller 8” round plate for one of the shots. I was only at 17 yards and the targets were only three yards apart instead of five, but imo that’s more than offset by the fact that my first target is so much smaller, just one-
fifth the size of the specified silhouette. Also, I only count the 12x16 body area of my silhouette as valid hits. A hit in the head area is counted as a miss unless I do it intentionally. Also, I was thinking (and state in the video) that the goal was 1.25 seconds, not 1.2 seconds. But as my times were 1.14 and 1.01 (1.075 average), moot point regardless. An over-60 desk jockey, who is NOT great with a rifle, out-doing the (unproven) claims of someone constantly claiming ‘world class’ status.
A big and relevant factor is that what was ‘world class’ years ago is pretty commonplace today. That’s true of athletic contests, it’s true of manufacturing, it’s true of car racing, and it’s also true in shooting.
Anyway, this was yesterday, starting ‘cold’; my first attempt. I did it again after this, and ran 1.23 and 1.10, making the four-run average 1.12)
{Edited to correct the silhouette target dimensions. It's only 12x16, not 12x20; a full one-third smaller than the specified 12x24 target size. So even using one target just 66% of the specified size and a second target just one-
fifth the specified size, the fact that this mediocre shooter shattered the challenge times seems to let the hot air out of the challenge-maker's brags...}