.17 MACH 2
The .17 HM2, or 17 Mach 2, was a joint venture between Hornady and CCI in 2003. A CCI Stinger case, which measures 0.100-inch longer than a standard .22 LR case, was necked down to take a 17-grain, 0.172-inch-diameter bullet. The result was a .17 that fit in a .22 LR action and magazines—the only change in most cases being a barrel—but with effectively double the velocity of a match-speed .22. At 2,100 fps, that little bullet ran flat. Run the numbers, and you see the .17 HM2 rises and falls 2 inches to 137 yards or so.
Hornady and CCI unveiled the round at SHOT Show 2004 hot on the heels of the previous .17 HMR launch. The HMR was a wild success, and much of the industry wasn’t ready for the unprecedented demand in .17 ammo and firearms. So, in
You’re reading a preview, subscribe to read more.
Start your free 30 days