Once you make the decision what kind of shooting range you want, consider whether you are the kind of person who can operate under strict federal, state and local regulations, including safety, insurance, record keeping and reporting requirements.
(A debit entry in an expense account ultimately causes the credit balance in an owner's equity capital account to decrease.) If the company incurs the $500 repair expense but does not pay cash, the company will need to increase its liabilities. The increase to a liability account is achieved with a $500 credit.
Whether a debit increases or decreases an account depends on what kind of account it is. In summary: an increase to an asset account is a debit. An increase to a liability or to an equity account is a credit. Conversely, a decrease to an asset account is a credit. A decrease to a liability or equity account is a debit. Debits and credits occur simultaneously in every financial transaction in double-entry bookkeeping.