The VPA pictured at the start of this thread is one i shot a different Buffalo with, Quartering away shot as you can see and it came out the far side through a rib, but did not have the arrow competitively Pass through, just complete penetration. With the braodhead and about 4 inches of shaft sticking out the far side.
The Head that passed clean through a Buffalo was shot at a broadhside Bull and hit ribs on both entrance and exist.
The bow was a 75lb at 28" compound Arrows were a total weight of 700grs.
Yes bow and arrow weight play a part. But
Iv seen as low as 65lbs to as high as 85lbs
and arrows as low as 550grs to 1050grs.
Those are not that important though, Arrow flight is a massive factor for all hunting and becomes critical for the big game.
A well tuned bow and perfect arrow flight REALLY goes a long way to making things work as they should and perform to its optimum. So tuning it very important!!
There is no point having a great head, high FOC, heavy arrow that is flying like crap!... just the same its no good having a perfectly tuned arrow with good weight, high FOC and a Crap Broadhead on the front.
Its these critical factors that can let you down and they are the vital ones to address and eliminate.
Again your bowhunting set-up is only as good as the weakest piece of gear or factor in it. The idea is that its ironed out until you (the Human) is left as the weakest part of the set-up. Then all you have to worry about is yourself screwing up not your gear. :cool: :D
Another thing that is worth bringing up again is good FOC, I have no doubt it increases penetration. But i don't go crazy with formula's and such, I just shoot a heavy head, get it tuned perfect and see where the FOC ends up. Which is usually around 18% to 22% FOC if i get bored and decide to measure it.