Alright, I did clean the heck out of the barrel inside and out and it cleaned up better than expected. There was only one small pit near the end of the muzzle on the inside of the bore.
So I took it out to do some testing... only had time to shoot 5 shots because some people that work for the state do the monthly cleanup the morning i was there.
I shot 4 shots of the hastings laser accurate ammo and only 1 of the vital shock. From the get go all shots were on bullseye at 30 yds...i know these barrels are capable of around 100 yd shots but, from the factory it was on the money at this short distance...
Also, it was fun shooting the slugs. The gun had more kick with the loads i used than any other gun ive ever shot. The biggest being a 444 marlin and 45-70. Felt recoil was pretty serious.
12-2-06 Edit for new range results:
Shot at 100 yds today...the barrel w/ open sites is awesome...very easy to get good groups down range. The hastings laser accurate rounds kicked harder than the federal vital shock... The hastings bullets were also all around the bullseye, while the federal was shooting about 8 inches higher. Im sticking with the hastings as it was dead on at 30 yds and seemed to be right on at 100 also.
Overall impression after two outings from someone who has never shot a slug gun (make it two outings now) - i was very impressed at accuracy of this screw on, easy on/easy off detatchable barrel. I already trust myself taking shots with it, amazing accuracy...shot where i pointed.