I'm a new shotgunner... just got a Mossberg 500 field/security combo 12ga... I am interested in getting into deer hunting (ohio only allows shotguns in gun season) and was curious if putting rifled slugs through my field barrel was adequately accurate or practical... I know they sell specific deer barrels, but if I can get by well enough with what I have, I would be pleased. I'm going to assume simply lining up both beads will do the trick on aiming slugs? Then my question goes to what choke to use when putting a slug down the barrel?