I use 6.5X55 a lot, also .308 (and other .30's) and .223. They all leave some blood, but, depending on the hit location, you might have to look hard to find it. No matter, I usually go for the high shoulder shot. Sometimes I take the tight-behind-the-shoulder shot with those calibers and count on following up to 100 yards or so....it all depends on the terrain where I'm hunting. I often use a hot rodded .45-70 (Marlin GG) shooting 400 grain Speer flat nose bullets. It seems no matter where they're hit with that they leave a lot of blood on the ground.
