Another reason the double-lung shot is so effective that some hunters and non-hunters alike don't think of, and that's the fact that both lungs collapse and the animal can't breathe which helps keep them from going far after the shot. These shots also are going to cut blood vessels that will cause a rapid drop in blood pressure that will deprive the brain of oxygenated blood, thus causing it to stop functioning quick too.
08/12 Martin Firecat Pro-X (29" DL, 67,5# DW), Nitro 3 cams, home-made bent cable guard rod, new VEMs, DS Advantage/HHA Pro-5519 front sight, No-Peep Sight Eliminator, Limb-Driver arrow rest, B-Stinger stabilizer, custom lower & upper STS with offset stops, G5 Head-Loc quiver on custom mounting bracket. Gold Tip Velocity XT300 arrows with Bi-Delta 2.5" Sharkstooth vanes and Grizzly single-bevel broadheads, 498 grains at 262 fps (22% FOC)
thought i would drop this link in here .... You can print off targets... check it out.. they have all the big game Vitals too.
2008 Martin MOAB - 45-60#, set at about 51-53# / 55#" Perfect Line" compound/ 55# Mongol horsebow/ 45# "Perfect Line" takedown recurve/ 45# Bearpaw Grizzly hunter recurve/ 55# Samick Longbow Cheetah ... and several homemade bows
Martin 06 Slayer, Nitrous C, shoot thru, 63lb, Quiktune 3000, HAA OL 5519, Beman ICS Hunter
Martin 06 Slayer, Nitrous C, Shoot thru, 55lb, Quiktune 3000, HHA OL 5519 2X, Easton A/C/C
Ben Pearson 1968 'Cougar' 62" 45#s @ 28" recurve, parallel shaft POC, Zwickey 'Eskimo' 2 blade
as you can see buy all this blue thats the shot to take..
Just keep away from that leg bone....sharpen them BH's up and go shoot some wild game