What little items have you added to your range-bag first-ad kits?
Those individual wet wipes are danged handy. And I find keeping some inside the boo-boo kit a good idea, 'cause I don't have to rummage for 'em in the main bag. (I hate bleedin' all over my gear when I can avoid it.)
Also added the styptic pencil to the little-wound kit. I figured for small cuts, lot handier and cheaper than a coagulant agent like Quik Clot or Celox.
Also by way of context, I do keep both a simple FAK (the boo-boo kit) for minor stuff and a separate blowout kit -- tourniquet, pressure bandage, Quik Clot Z-fold gauze, shears, a bit of duct tape, marker, gloves -- in the range bag. Lord knows I hope I never have to use the latter, but the simple FAK has come in way handy many a time.
I ran shooting events for years (high power, smallbore) and I always kept a trauma bag.
Full disclosure, I didn't know how to use half the stuff in it, and wouldn't be qualified to use it. But I figured there'd be that off chance that someone did, if anyone ever had a hole put in them. For instance, I doubt anyone on planet earth would want me intubating and bagging someone - I'd probably kill you if I tried - but having that at the range meant we had a sealed sterile spare.
There was an event at a local gun show once where a person fired a 223 round through a pair of fellows who were shopping. Guy aimed a dealer's gun at a post and pulled the trigger,
assuming it was empty. The dealer in question claims that someone must have put the round in the chamber when previously handling the gun, maliciously, although the truth was impossible to determine. What
did matter is that the .223 round went through that 3.5" post, through the guy's chest on the other side of it, and then fragments hit a second individual behind *them*.
It was at that moment that I realized that having spares of medical supplies at the range might be useful in case the first ambulance shows up in a multiple victim shoot incident and didn't have sufficient supplies (some crazy shooting people to take their guns during a cease fire always also lingered on my mind, after another range had an armed robbery occur). So I added a couple extra tourniquets (these require training to use properly, particularly noting the exact time they are applied!), an airway opener, and intubation tube. Those stayed at the range in the rifle range building, sealed and sterile.
My view on medical supplies, particularly if your range is "well off the beaten path" - is it's better to have the big ticket items handy.
As far as what I personally kept in my range bag, and covered during the pre-match safety briefing so everyone knew where the medical supplies were*, were quick clot, large sterile bandages (the combat type with long wrap around cotton strips so you can tie them on), various assorted sterilization methods (iodine, sodium or hydroxy-something-rather can't remember, etc),
Nitrile gloves. Lots of those.
Every incident where we had an injury - fortunately few - were of the "I smashed my finger with the bolt" or "I cut myself on a sharp edge of xyz" or "I just got burned by xyz".
Cuts I attended to myself, mainly out of precaution. The worst incident was someone wandering off to the weeds to take a leak, instead of walking to the plumbed bathrooms, they stepped on a nail that went through their boot. I cleaned the wound, flushed it as best I could, stuck a bandaid on it, and sent them to the ER for proper flushing of the wound and .. a tetanus shot. The guy reported back later that day with a bandaged foot and said the ER wanted to thank me for taking the time to flush the wound before he went in. (Apparently time is of the essence when you have a dirty puncture wound, so irrigating that wound out ASAP is important).
Other than that I had to do butterfly bandages on some ugly cuts (one of which I sent off for stitches), and some topical anaesthetic / bandage for the occasional "barrel or brass burn blister".
*** I always gave a "if someone is shot" lecture at the start of the match during the safety briefing, of every match. This served to IMMEDIATELY heighten awareness of safe gun handling as I pointed out exactly where the gunshot supplies were located. I found that doing this made everyone pay MUCH closer attention to the following gun safety dialog, and *everyone* was ultra conscious of safety infractions and safety procedures during the match. This safety lecture included procedures and nomination of someone to take a bright colored flag out to the highway to flag the ambulance so they got the right entrance, who was responsible for calling in the 911 call, who was responsible for securing the immediate incident site and firing line / range if there was an incident, and so on.
When hunting I carry a medical kit that is leg / belt mounted, even if I am hunting alone. If I'm shot by another hunter at least there's a bag with a big red PLUS sign on it strapped to my leg.
ETA: Every one of our vehicles has a trauma kit in it, as well. Response time for first response in the country here is 20+ minutes.
ETA: Yes there is liability when you treat someone for a medical condition. I was always willing to accept this liability when helping someone. Yes, you can be sued for treating injuries if you are not trained and certified. No, I did not care.