With any of the practical shooting competitions, a skilled shooter can be competitive with an unmodified handgun. Also, the skills required have a lot of overlap with real world defensive handgun use. Oh, and it's way more fun.
Rifle competition has a staggering amount of kit. It's bonkers. Special jacket, pants, underclothes, shoes, blinders, gloves, slings, a rifle that is like a space gun with adjustable weights and pieces all over. Most serious 30 rifle competitors will have three separate stocks to reconfigure the rifle on the fly between positions. Special kneel rolls, special mats, $1000 training cameras. You have this special tripod for holding the rifle between shots, and all your pellets (or cartridges if it's smallbore or high power). If you're not shooting electronic targets, you have a whole separate tripod and sighting scope to see shots & scores.
When I go to the range I'm lugging no joke like 50 pounds of crap.
Bullseye pistol... actually not that much. Special eyewear if your eyes need it. Earplugs. And that's kinda it.
Olympic rifle is some insane gear race bullshit.
But then again, so is internationally competitive bicycle racing. Anything that doesn't have literal $$ caps on gear will end up that way.
I'm probably wrong, but I would like to see humans competing not cyborgs.