Findings:

• caliber
• pistol caliber carbine
• Advanced Dungeons and Dragons Core Rules CD-ROM
• rules to the game of life
• Rule
• airplane rule
• Aussie rules
• Road Rules
• One Node to Rule Them All
• Golden Rule
• The Rule of Fives
• l'Hôpital's rule
• Rule of thumb
• Rules Lawyer
• The Cider House Rules
• 14 Rules of Internet Chat
• bridge rules
• Who makes God's rules?
• Murphy's Rules
• Why C++ rules
• San Dimas High School Football Rules
• DeMorgan's Rule
• Slide rule
• majority rule religion
• "Hey wouldn't it be cool if we could do this" rule
• The Rules
• Interstate Numbering System
• The Eleven Satanic Rules of the Earth
• Home Rule
• Two Golden Rules of Being a Woman
• Rules for horse shoes
• ground rule
• The rules of Project Mayhem
• Blues rules
• Real World Road Rules Challenge
• AD&D rule books
• Wizard's Second Rule
• Things that seem too good to be true rule
• Ninety-Ninety Rule
• You suck, I rule
• Heinlein's Rules for Writing
• right hand rule
• Thirty Second Rule
• Katimavik's Norms of Behaviour
• rule worshipper
• Unwritten rules for driving
• Callahan Rules for Ultimate
• Lagrange multiplier rule
• rule of three
• Children's online privacy protection rule
• Brockian Ultra-Cricket
• Why wind will rule all
• Zero-One-Infinity Rule
• rules of killing (human edition)
• Signal Corps Rules of Ownership
• Ninety percent rule
• UPA Rules for Ultimate
• Laws of Cricket
• Rule of Cool
• Rules of Mornington Crescent
• Rules for trading pictures on the Internet
• Rules for tripping on hallucinogenic drugs
• First rule of comedy
• Infield fly rule
• Onyx you rule
• Chain rule
• 2 day rule
• Rules of Seduction
• Rules of the Air
• Rules for working at a grocery store
• Not really by the rules, but...
• The rules of pool are not selective
• Bluffer's Guide to "The Rules"
• When to talk about religion
• Rule of 72
• Rules for Meeting Celebrities
• Rule of Rules
• The 1/2 plus 7 rule
• Virginia in-state tuition rules
• house rule
• Wizard's First Rule
• Delesse's Rule
• Futtless Rule
• offside rule
• Why the United States rules
• Masshole drivers' rules of the road
• Robert's Rules of Order
• The Rules of Life
• rule of nines
• the 2/3 rule
• Rule, Britannia
• Rules of the game
• inference rule
• divide and rule
• The Rule of the Titans
• The Rule of Jupiter
• work to rule
• The Golden Rule of Relationships
• Bart's Rules
• artificial rule
• Romer's rule
• Only a fool breaks the two-second rule
• majority rule
• The Two Rules of Success
• Exclamation point rule of thumb
• 5-Over rule
• The three golden rules of user interface design
• The Rule
• life and rules
• Elementary Rules of Usage
• Rules for Women Teachers
• Octet Rule
• Entropy rules you forever
• Rules and Regulations
• transformation rule
• The rule of eleven
• ten percent rule
• Rules for learning the Martial Sciences
• Helpdesk rules of engagement
• Greek and Roman Rule of Egypt
• Federal Trade Commission Rules for Merchants' Shippings
• Rules for drinking forties
• The Rule of Law
• The exception that proves the rule
• Rudolf Rules
• The rules of relationships
• The rules of soccer
• Partisanship and the "rule of law" are obstacles to true democracy
• Rules for dining with my mother-in-law
• Osborne's rule
• Three Knock Down Rule
• Who rules the graphics industry?
• Modern rules of boxing
• Rule of Reason
• Game Master Rules of Admonition
• Rule Of Affirmations
• Important aviation rules
• Depressing but probably true rules of life
• Five rules to live by
• Australian Rules
• ground rule double
• The Ten Rules of Health
• The Rule of 10
• New Hire Rules at the Overtime Biscuit Corporation
• 3-Minute Rule
• Rule utilitarianism
• The Rules of Attraction
• Quotient Rule
• I have a face I cannot show, I make the rules up as I go
• Rules of Rollerball
• diagonal rule
• Haldane's Rule
• trading rule
• Rule 5 Draft
• Rules of program optimization
• Rules of Inference
• right to the ways and the rules of the world
• Almost broke the rules
• The SAT rules our lives
• The Three-Fifths Rule and the 2000 Election
• rules of typography
• Parol Evidence Rule
• The Cyber House Rules
• Scheimpflug rule
• rules for registering .se domains
• Rule of Saint Francis
• Scottish Court rules: "Fuck off" is not an insult
• Woodward-Hoffmann rules
• Rules by which a great empire may be reduced to a small one
• left hand rule
• Garamond's Rules
• Stray cat rules
• British Indirect Rule in Africa
• silverchair rule (user)
• Seven Rules of Hillel
• Pork fat rules
• Bergman's Rule
• Phase Rule

If you Log in you could create a "Caliber rule" node. If you don't already have an account, you can register here.