Contender question

[phoneman7]

If I found a 16" 45/410 barrel and put it with a choate folding stock, would i be legal?   No Classified Ads on discussion forums.

[Ranger99]

as far as i'm aware, any rifled barrel
anything with a stock has to be min. 16 inches
any smoothbore anything with a stock
has to be min. 18 inches.
barrel wise , that is.

[phoneman7]

well the 45/410 is rifled thus it should break the shotgun rule of 18  since its a 45 colt that can fire 410. Or thats what i was told.  Only thing thats vague to me is the 26 overall length.  Ive read that it is stock extended and i've also hear that is calapsed

[Ranger99]

i think it all depends on if the
officer or warden or whoever is
having a bad day or not.
that's why i never whack a topper
off less than 20 inches now.
kinda hard to fudge those extra
2 inches even if they're out to
bust you. . . .
had 'em want to grind me over
my super 14 with the welded extension.
one reason why i left the weld bead as is.

[GarrettJ]

well the 45/410 is rifled thus it should break the shotgun rule of 18  since its a 45 colt that can fire 410. Or thats what i was told. 

18 USC 921 defines a "shotgun":
(5) The term “shotgun” means a weapon designed or redesigned, made or remade, and intended to be fired from the shoulder and designed or redesigned and made or remade to use the energy of an explosive to fire through a smooth bore either a number of ball shot or a single projectile for each single pull of the trigger.

(6) The term “short-barreled shotgun” means a shotgun having one or more barrels less than eighteen inches in length and any weapon made from a shotgun (whether by alteration, modification or otherwise) if such a weapon as modified has an overall length of less than twenty-six inches.
So you are correct in that a firearm with a rifled barrel does not meet the definition of a shotgun.

Only thing thats vague to me is the 26 overall length.  Ive read that it is stock extended and i've also hear that is calapsed

ATF and nearly all states measure the firearm with the stock extended.  A few states such as Michigan measure the firearm in the shortest condition it can be fired in.