RE: Is a .410 Big Enaugh ?
I got my first .410 when I was about 8 years old. I just used it rabbit hunting a couple of weeks ago. Rolled a big ol' buck rabbit right over his tail at 25 yards. I've never tried it on turkeys, but I want to. Just get him in close. Most of the turkeys I've killed throughout my 25 years of hunting them have been killed within range of a .410.
Make sure of your shot and good luck.