Kenny,
Your post is okay since you are sharing information rather than trying to profit from it. You may also post a link to the add.
I inquired about a 8 to 10 gauge bore gauge. Hope, of course not.... I finally bought one of Jon Hosford's bore gauges which measures from 8 to 28 gauge. With it I measured and logged into Excel the choke dimensions of 170 Parker barrels so far.
I have Skeet's bore gauges but the Hosford compared to them is like a Parker to a LC Smith.
Mark