b' GMXHard-hitting and deep-penetrating, the GMX bullet combines monolithic construction with pioneering ballistic design to meet the need for a premium, non-traditional bullet. Tougher than pure copper, the mono-metal copper alloy has been proven to shoot cleaner, foul less, and deliver consistent and even pressure curves. The tough alloy material routinely retains 95% or more of its original weight and expands up to 1.5 times its original diameter.Featuring a long, sleek profile with cannelures, the design reduces overall bearing surface and friction in-bore, while achieving some of the highest ballistic coefficients from monolithic, non-traditional bullets. Initiating expansion upon impact, the hard polymer tip drives into the hollow cavity at the front of the bullet, creating a mushroom-style projectile as it travels through the animal. Fully California compatible and appropriate for use in areas requiring the use of non-traditional bullets, GMX is ideal for any sized game, from antelope to moose.COPPER ALLOY CONSTRUCTIONOne-piece copper alloy wont separate and delivers devastating terminal performance,CALIBER/22 Cal.22 Cal.6mm6mm GMX25 Cal. deep penetration, and 95% weight retention. TYPE GMX GMX GMX (6mm Creedmoor) GMXCRIMPING CANNELURE ANDDiameter .224" .224" .243" .243" .257"PRESSURE RELIEVING GROOVES Weight 3,6 g/55 gr. 4,5 g/70 gr. 5,2 g/80 gr. 5,8 g/90 gr. 5,8 g/90 gr.Ballistic Coef. .245 .350 .300 .422 .290Reduces both bearing surface and fouling,Sec. Den. .157 .199 .194 .218 .195and aids in consistent reloads. Item # 22273 2281 24370 2444* 25410HIGH WEIGHT-RETENTION Box Count 50 50 50 50 50High weight retention is a significant benefit to the GMX and monolithic family of bullets, routinely retaining 95% or more of their original weight.CALIBER/6.5mm6.5mm6.8mm/270 Cal.270 Cal.7mm7mm TYPE GMX GMX GMX GMX GMX GMXDiameter .264" .264" .277" .277" .284" .284"Weight 7,8 g/120 gr. 9,1 g/140 gr. 6,5 g/100 gr. 8,4 g/130 gr. 9,0 g/139 gr. 9,7 g/150 gr.Ballistic Coef. .450 .350 .310 .460 .486 .464Sec. Den. .246 .287 .186 .242 .246 .266Item # 26110 26336* 27190 27370 28270 2828Box Count 50 50 50 50 50 50*Requires 1:8" or faster twist rate. 62 Bullets hornady.com'