I've bought a handful of the hulls from Track, and they fit my Parkers just fine. I have two, 10 gauge hammer guns, and have had no problems. I talked to the guys there when I ordered mine, and they said that they have only had a couple of complaints of the hulls not fitting chambers. They said the problems were limited to English made guns, that must have tight chambers or shorter head clearance than the Parkers that these hulls were patterned after. Give them a try, if they don't fit your gun they'll take them back, I've done business with them for years.
Joe: What make of 10 gauge do you have? Is it of foreign manufacture, or American made?
