AM Best has affirmed strong ratings for Biglari Reinsurance Ltd. and affiliates, citing strong capitalisation and stable performance. The ratings agency said, “AM Best has affirmed the Financial Strength Rating of A [Excellent] and the Long-Term Issuer Credit Ratings of “a+” [Excellent] of Biglari Reinsurance Ltd. [Bermuda] and its reinsured affiliates, First Guard Insurance Company …