Ticked you off uh,Jeff Erwin? I got a friend who takes between 90/125 coyotes "plus fox,coon,and bobcats" a year and used your method and quit doing it for the same reason i did...[Drop like a rock,shot behind the shoulder with a 22 long rifle.] Fella,you may have some believe you,but most would find out how wrong you are,if they tried it.
At least,Michael H is telling the truth about the short,but the same thing can be said with any 22 long rifle.The drop like a rock,is best done with a head shot,using a 22.
"The elbo"with one crack,is quicker killing than your method.I only used a pipe and elbo a few times,years ago,when times were hard and no money for a gun.Maybe before you were even born,and[most anti's too.]I now carry a S&W 22.to dspatch my critters with.