OK so I run mostly 4-hour T2k games at the Origins gaming convention..... (May/June 2011) ... simply put, i kill and maim the characters so much they rarely have time to worry bleeding in lieu of how they died...
Case in point: in an ambush on medical supplies convoy in Eastern Germany: I killed the gunner on the Up-armored escort HMMWV with PTRS-41 14.5mm Anti-Tank bullet.... thru the gunshield and flak vest... was messy, then the other 50-60 ex die hard commie not pissed off disowned eastern german marauders in the hillside and tall grass started pounding rounds into the lead vehicle and the PTRS started punching holes into the next vehicle in line. Lead vehicle got the nickname "the Meat Wagon" from the players...
I threw actual spent 7.62mm Rimmed and Tokarev rounds on the table to simulate the nastyness... the poor tail deuce-and-a-half had a guy run up to drivers door and spray a clip of PPS-43 7.62mm Tokarev AP rounds in the door... it was a messy way to go, he did live long enuf to scream and gurgle tho... veh commander couldn't fire back due to 7.62's thru arms and being temp blinded by arterial blood spray.... does that count?