I raised turkeys when I was a teenager ... Usually less than 10 per year ... One year I had a huge Tom that I was very proud of!
The smaller ones that dressed out about 20-25 pounds I'd swing around by holding their legs until they were dizzy, then lay them across a chopping block and hatchet their head off, just like I did the 100 chickens ... But, this huge Tom (dressed out at 36 pounds!) wasn't going for that and fought me quite abit! So in my teen wisdom I hung him over the clothes line where we usually plucked them after a hot water bath ... And got Momma's big carving knife, and I figured I'd just grab his head and pull it down, and slice off his head ... As soon as Tom felt the knife on his neck, he spread his wings, and cuffed me in the face, and lifted my scrawny 85 pounds into the air, a thought my nose was broken! When I got up from where I landed 7-8 feet away, I saw that he had won the fight, so far ... As I was covered in blood, my own!
I let him down from the clothes line, and went inside to get cleaned up, my Mother wanted me let her fix me up, (she was a ER RN nurse) but I was gonna take care of Tom first ... I grabbed my single shot .22 and some 40gr solid longrifles, and a pocketful of cracked corn and walked out looking for Tom, now he was a tad bit "shy" of me ... So ... I tossed out some corn and stepped back ... He came to the corn, and I shot him in the head ... He just gobbled, and went back to eating ... I couldn't believe it! I shot him again, same thing, but I could see I had hit his head, the blood was just trickling down, but he just gobbled! Four times I shot him in the head, the last time the muzzle was less than 1" away, and still he just gobbled, and went back to eating ...
I'm kinda stubborn ... And this was gonna be our Turkey ( sold a bunch of others) for Thanksgiving ... I went inside, my Mother asked if he was dead yet, and was I ready for the water? I said "SOON" ... I got my Fathers 12 gauge Ithica 37, and a shell, walked up to Tom, and from less than 1' away I blew his head off, finally he was dead!
I'm sure it was not the noise that killed my huge Tom turkey!