Scope for Remington 870 Slug Gun?

Looking for advice as to what scope would fit my needs for a Remington 870 Express Magnum slug gun.  I have been shooting this gun with a Vari X 2-7-28 compact out to 100 yards with 2 3/4 slugs and getting great accuracy.  I think it could be effective out to 150 yards but can't seem to get a great group with the 2-7x28 @ 150 yards.  Would also like to have have a scope suitable to shoot out to 200 with 3" slugs if my shoulder is able to take the abuse.  We are loosing a lot of land here for rifle hunting and numerous counties are going to shotgun only.  Any suggestions would be helpful.  Thanks in advance.

I'm not sure if it's a scope issue, I'd try several other brands of slugs, also make sure your rings & bases are secure.

 

Barrell is rifled, I will give the Hornady's a try.  Local law does not allow muzzle loader during gun season, only shotguns in the particular county I will be hunting in, passed that law a couple of years ago.  I guess due to the greater accuracy of the modern smoke poles.  Thanks for the info....

Edited by antleraddiction - February/28/2008 at 09:30

I'm not up to date on the specifications of the various slugs you are using or planning to try, but back when I used to shoot slugs, we found that rifled barrels were far more accurate with sobot slugs than they were with Foster-types. I had a long, heavy Hastings rifled barrel on an 870 that was very accurate out to about 150, which was as far as I ever tried to shoot it, when using sabots.  With Fosters, my Dad's smoothbore slug barrel shot at least as well as my Hadstings did, 75 yards was  pushing it with most brands, if I recall correctly.  I wish I had been more scientific with my testing and had kept notes back then.

As far as 150 yds, get a bolt shotgun & go 200 +.  A friend of mine blew my mind with his at 200. It's every bit as accurate as an inline muzzle loader at that range.