A little update.

Made it to Bass Pro and picked up some shooter's choice MC#7 and their extra strength copper remover. Brushed the bore using the MC7 and a bronze brush, then followed with some patches of copper remover. I got next nothing extra out of the barrel. It appears that it was pretty clean before. I went ahead and pushed my lead slug through the tight spot (took a little extra oomph but it went through). Then I drove another slug in just short of the tight spot, took them out and measured both. They both measured in the .2036-.2038 range, depending on which groove I was measuring and how I held my mouth when I measured. So even though there is a tight spot, I'm no longer very concerned about it.

I also ordered some 39gr BK's, Remington 7.5's, and a couple lb's of VV N530. A Lee cast iron classic and some collet neck sizing dies (along with a bunch of other nickel and dime stuff that really adds up!) are also on their way.

I'll report back as soon as I have some results!

Tim