Scope for slug barrel???

MO

I'm not real familiar with dot scopes, but I'd doubt you can just put one on and go with a slug gun.  Probably would require the same sighting in as a regular scope.  But, I could be totally wrong on that and it wouldn't be the first time I've eaten crow on here.

Anyway, I've got a Mossberg 500 with a slug barrel.  I mounted a Nikon Pro Staff on it.  There are several different Pro Staff models, and I got one designed for a slug gun.  Most gun shops would have them I'm sure.  Not sure about the big box stores.  I'm far from being a gun smith, but I mounted it, bore sighted, and shot it in myself.  Very pleased with the results.  Shoots decent groups at 100 yards.  Have taken deer out to 80 with it.  Have taken three deer with it, and each has dropped in its tracks. 

A word of caution.  If you think about shooting 3" magnum sabots, be prepared for some major recoil.  Not only do I find the 2 3/4 shoot better, but you'll just about get a detached retina from the 3" loads
 
Edit: Meant to say that the one I have is the cantilever model.  That made scope mounting very easy for me.  If it's not a cantilever barrel, forget everything I said.

Cantilever barrels have the scope mount attached and stay sighted in when you remove the barrel.
Sell your plain barrel before you shoot it and buy a cantilever barrle

MO, some good advise given by both parties.  You really don't need the 3" slugs at all.  Todays 2 3/4" slugs (particularly some of the better sabots) will consistently group less than 3" at 100 yards.  As for the barrel, pgh is right on the money with getting a cantilever.  It will always be more accurate than the best receiver mount.  On a personal note, the three best slugs I have seen for accuracy and performance are handsdown the Lightfields, The Federal Barnes X bullet, and the Hornady.  The Hornady doesn't have the hard hitting performance of the other two on game, but it more than makes up for it with accuracy (consistently producing <2" groups at 150 yards and flat out deadly to 200).  Good Luck. 

not to start an arguement but the way you guys say these guns shoot is why i don't understand all the threads that come one here about how shotgun only will reduce deer kill. from my understanding slug guns are very accurate and to me thats what it sounds like your saying?

250 is really far i don't hunt near a spot were you can see a deer that far. i have always hunted with a rifle and the farthest shot i ever had on a deer was about 130

MO -
 
I have used my Mossberg for 5 seasons so far, and change the barrels in and out all the time.  Never had a problem with losing my zero.  Of course, I always take it out for some shooting a few days before hunting with it just in case. 
 
I have found in my gun that I get the best accuracy with the 2 3/4" Lightfields that Griffon mentioned.  Don't know if it's me flinching or the slug, but I did not shoot well with the 3" loads.  I tried a few different brands and a few different loads and settled on the Lightfields.  Every gun and every hunter are different.  But sighting in a slug gun with sabots ain't cheap.  Think the last couple boxes of Lightfield sabots I bought were about 8$ for 5 shells. 
 
Bottom line though is to shoot it enough to get comfortable with it.  I have a 30.06 and the slug gun, but in most situations where I think shots will be at 100 yards or less, I'm likely to choose the slug gun, even though I don't hunt in special regs areas, because I'm more comfortable with it.   

I shot it today with the fiber optic sight that came on the barrel.  At 50 yds I'm a foot low.  Is it just trajectory and drop or can it be that far off??
 
MO

What store carries the Lightfields??  Does Gander have them?
I called Gander and got some BIMBO.  She transferred me to the shoe dept.  WTF!
 
MO

Lightfields are sold at DSG, Gander Mtn.,BPS and Cabelas. I have used them for deer for many years and have not found any better slug. As far as scopes, I use a Leupold 2-7x33 with a heavy duplex rectical and it works great.

Cheap arse.