Multiple linear regression analyses were conducted for all violent crimes and separately for four types of violent crime: murder and manslaughter, rape, aggravated assault, and robbery. Results show that the legally relevant factors -- seriousness of the crime and number of convictions -- had the strongest influence on sentence lengths. Across most violent crimes, male, older, and better-educated offenders received longer sentences than those without such characteristics. Political conservatism had a positive effect on sentence lengths for overall violent crime, robbery, and aggravated assault. Interaction effects of political conservatism and the number of convictions were significant, indicating that sentence length increased disproportionately as a court's conservatism and the felon's number of convictions increased. Findings suggest that political conservatism is an important contextual feature that affects prison sentence length. 4 tables, 8 notes, and 47 references