Quote:
A better comparison would involve the .17Mach2 as it is based on the .22lr cartridge ...
Just a little factoid that a lot don't know, while the Stinger can be used in non-match 22 long rifle chambers, the 17M2 case is based on the .22 Stinger case which is .10" longer than a standard long rifle case, and why the stinger can't be used in match chambers....back to the topic. /ubbthreads/images/graemlins/smile.gif
http://www.cci-ammunition.com/ballistics/detail.aspx?loadNo=0050
http://en.wikipedia.org/wiki/.17_Mach_2
Since the .17 HM2 is based on the .22 Long Rifle Stinger, converting most firearms to .17 HM2 requires only a barrel change. The higher pressures makes conversion of semi-automatic firearms more difficult, as virtually all are blowback designs that are sensitive to pressure changes. Kits for the Ruger 10/22 have appeared, and they replace the factory bolt or bolt handle with a heavier one to increase the bolt mass and compensate for the higher pressure. Since the .22 Long Rifle is arguably the most popular cartridge in the world, the .17 HM2 has a large pool of potential firearms that could chamber it, and a huge infrastructure to manufacture the rimfire case it is based on.
Specifications
Parent case .22 Long Rifle Stinger
Bullet diameter .172 in (4.4 mm)
Neck diameter .180 in (4.6 mm)
Shoulder diameter .226 in (5.7 mm)
Base diameter .226 in (5.7 mm)
Rim diameter .275 in (7.0 mm)
Case length .714 in (18.1 mm)
Overall length 1.00 in (25 mm)
Primer type Rimfire