#1: You can learn a lot about the sport and have questions answered by some of the best shooters in the country.
#2: A lot of the targets are heavy and many hands make easy work

Warm cloths and boots, chemical hand warmers, and strap on ice cleats might be a good idea. At this time of year we generally try to set up stages that don't require a lot of movement due to safety reasons. Cold hands, ice under our feet, and loaded guns is sometimes not a harmonious situation. We try to reduce the risk as much as possible.
Please take the time to go to http://www.mn3gungroup.org to review safety rules and there is also a lot of other good information that is worth reading.
Bring 100 rounds of rifle, pistol, and shotgun birdshot along with 10 slugs. You will be set with enough ammo for the match and you will be taking some home with you.
Any questions, post them up here or on the MN3gunGroup Facebook Page.