First, a 3" group at 25 yards is terrible! First I would change slugs. Go buy 3 differant kinds and see how each perform. Call Haistings and ask them what they would reccomend. I did a couple years ago and they told me Winchester Supreme Hi-Impact. They were right! Out of 6 differant slugs and about 150 rounds they were the best. Funny thing was sabots were the worst performer. The next best consistent slug was the 2 3/4" Remingtom Slugger. ( $1.99 a box cheapo' s) Another intersting note was 2 3/4" slugs were more consistent than 3" slugs at 50 or 100 yards.

You didn' t say much about your set-up. If you' re having problems a strongly reccomend getting a Red Dot sight. They' re the cat' s meow for slug hunting. Fast two eye open aiming, good low light, and accurate - you know where you;re going to hit. They are also great for running shots during drives.