Gee, guys, the M6 is a lumpy little weapon, I'll agree, and the .410 hardly a contender compared to a 12 Ga, however, I've just had lots of luck with it, especially the .410 rifled slug, which hits fairly hard at close range. Again, I'm talking 50 yards and under.
Anyway, I'm going out right now - with a .410 - to harvest my Guniea hens for some Thanksgiving bird. Not traditional, but they are so darn noisy I've had it with them. they are delicious too.