It clearly states in the Ruger Bearcat manual, page 15 (first paragraph), that "The Ruger New Bearcat revolver can be dry-fired without damage to the firing pin or other components"
Most people forget to carefully read their gun manual. I know I have and have missed an important fact or two. I hope I'm not breaking web rules by posting the link below in case you lost your manual. Manual is usually also found on Ruger site. Thank you.
http://www.stevespages.com/pdf/ruger_bearcat_nm.pdf