From the publishers website:
Dog Town: Stray Bullets is a magazine style supplement to boost your Dog Town game. It contains:
Additional Talents and Vices.
Three new criminal types in The Extortionist, The Rat and The Wheelman.
Two organized crime groups - The Black Mafia and "The Old Man" Eddie Malloy.
Improved combat resolution chart.
Exciting new rules on playing with Luck.
Dozens of additional Skill Specializations.
A new fighting style and critical chart - Thai Boxing.
New combat rules and weapons to rumble with.
Two brutal mini-adventures - Junkie Stomp and Home Invasion.
Gun laws, gun crime, gun tips and more guns.
G.T.A. - all you need to know about boosting cars, making them legit, keeping them on the road and suping them up as getaway cars.
An extended price list from the time covering simple sporting goods to luxury homes.