Is 20 gauge allowed for 3 gun?

[Glamdring]

Wondering if 20's are allowed for 3 gun.

[HSMITH]

Yup, some good debates on 12vs20 over on Enos.

[jmorris]

I shoot my wife’s 20ga 1100 with a home made 8rnd tube. The MD’s keep on trying to figure out how to make a 12ga beat it. The shot column of a 20 is longer than a 12, if you keep the same oz of shot; more seem to be where you need them, the short answer.

[Hoser]

Its allowed, but finding lower recoil slugs and buck is not easy.

[Glamdring]

Thanks. Didn't know about Enos forum
here is one link on this topic
http://www.brianenos.com/forums/index.php?showtopic=44624&hl=20+gauge

[akanotken]

Shell selection isn't as great, that's why I traded my comp shotgun in for a 12ga. Also, you'll find some 3gun matches that force 12ga for men and some that require 00 buck (not available for 20ga). These are the nonstandard, "local" or outlaw type 3 gun matches .

'Its allowed, but finding lower recoil slugs and buck is not easy."

20ga IS reduced recoil buck and slug :)

"I shoot my wife’s 20ga 1100 with a home made 8rnd tube. The MD’s keep on trying to figure out how to make a 12ga beat it. The shot column of a 20 is longer than a 12, if you keep the same oz of shot; more seem to be where you need them, the short answer."

Hmmmm, I'd guess there are a lot of other factors that are more likely your cause for success. 2 major candidates would be choke selection and marksmanship. Take the 12 with an ounce, the 20 with an ounce and take them to the pattern board. They should throw the same pattern for the same choke. Btw, this is by definition, choke tubes are marked with the best guess as to what performance will be, but the performance is what determines what the choke name is, and the performance is what determines results in the field. i.e. by definition Full choke is some percentage of available pellets in a circle (30 inch?? IIRC) at some distance (40 yds, IIRC). Longer shot column is generally considered to be bad with moving targets (clays). I don't think it matters too much with knockdown targets (steel).