James...Its a Sierra...85gr BTHP...Check out www.sierrabullets.com News letter Volume 7 Number 4...I didn't believe it...till I used...Have now killed about 30 deer with...from 35 to 235 yards with...sighted in 2 1/2 high at 100...I'm about 2 1/2 low at 300....Gives full penetration on broadside lung shots...Goes through both shoulder blades on high shoulder shots...Great long range load...Good Luck