My experience has been almost all before clotting agents were available. Mostly in backwoods/wilderness settings, we saw mostly trauma generated from falls, plane and auto crashes, etc. I do recall some gunshot wounds. One of the bloodiest incidents98 was a virtual arm amputation (the victim walked into a spinning rear rotor).
Direct pressure always worked; I can't recall even using pressure points. Never even thought of applying a tourniquet. Battlefield injuries are a different kettle of fish, and it does seem that clotting agents are useful. For what i might face going into the woods, i am confident that I can get along without clotting agents.
Browsing in REI the other day, I read the directions on a packet of Quik-Clot. Basically, it said to apply the product to the wound and then apply direct pressure (!). For my likely situations, I am comfortable packing more gauze pads and ace bandages, omitting clotting agents. Versatility is highly desirable in a backwoods FAK.
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Geezer in Chief