Huntsalotey, you did good. The Mossberg will give you many years of fine service. "Overbored" means the bore of the gun is larger. The 835 Ulti-mag is overbored meaning it is larger than standard 12 gauge bore. It's actually the same size as a 10 gauge. You'll have fewer pellet deformation and flyers out of the pattern with this set-up. 835's pattern really well do to this. You can use your new shotgun for many things. Just pick the right load for the intended use. 2 3/4" light loads for small game and shooting clays, 3" and 3 1/2" magnums for waterfowl and turkey. Have fun and just go shoot. One word of caution. The ported barrel is going to cause an increase the amount of sound your ears receive. Wear good hearing protection when warranted.