quik clot is a great coagulant but the powder form isn't recommended for more serious injurious due to the fact that heavy blood flow keeps it from penetrating the wound. it just washes right out. current issue in the army is Hemcon, it looks and feels kind of like one of those dehydrated sponges and if you really need to you can break it into strips that you can insert into the wound and it will seal it shut, it's one of the few things short of a clamp or timely stitches that can keep you from bleeding out with a serious wound. the other option is an israeli bandage which is similar to our standard pressure dressing but also has a coagulant. I'd also recommend a good tourniquet, a SAM splint, and a tool like a benchmade rescue hook (for cutting through clothes to get to an injury without the chance of cutting the patient or yourself) as some items that are big holes in most peoples first aid kits.

take care, and heres hoping you'll never need any of this stuff.