Wide mouth blow molded plastic container, method of making same, and preform used therein

A preform for use in forming an intermediate article used to form a blow-molded container comprising a wide mouth externally threaded finish, a dome below the finish, a body portion below the dome, and a base below the body portion, said intermediate article having a moil portion, comprising:

• a tubular body comprising a closed bottom and open top with a peripheral flange,
• said tubular body comprises a wall with regions of various thickness corresponding to predetermined regions of the finished container,
• said body wall comprising a first region located below said flange for forming the moil portion, a second region below said first region for forming the threaded finish and a third region below said second region for forming the dome and body,
• said third region comprising a predetermined wall thickness for substantially its entire axial extent;
• said second region comprising a wall thickness thinner than said third region, an outer diameter less than an outer diameter of said third region, and an axial extent less than said axial extent of said third region;
• and
• said first region comprising an inner diameter wall that tapers inwardly in a direction from said peripheral flange toward said second region.