Key Features of the Hunter Supply .308 30 Cal, 111 gr HP: Diameter .308 Over All Length .641 Ballistic Coefficient .243 Sectional Density .167 (Please note that we special order these direct from our distributor. IMPORTANT - ALL SALES ARE FINAL ON SPECIAL ORDER PRODUCTS. If you have questions about availability or any other pre-sales questions, just contact us via our contact us page and we'll be happy to help you!)