SOT_II said:
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The hardest shooting .22 LR ammo shoots at about 155 FPE...the average .22 LR shoots about 125 FPE...so a 22 LR shooting at well above the norm is a .22 LR sort of on steroids...the M2 round out of that gun is doing 168 FPE...which is again like a .22 LR on steroids.
Since they .22 LR and .17 M2 share many case dimentions (the toeh point of not haveing to change but a barrel and weight the bolt) it's more like a .22 LR on steroids.
"Remington Premier® 17 MACH2 rimfire ammunition will be offered with an explosive 17 grain AccuTip-V™ bullet and a sizzling muzzle velocity of 2100 fps.:
so 17 grains @ 2100 FPS...what's that ...hmmm 166 FPE....
http://www.remington.com/ammo/rimfire/premier_goldbox.htm#ballistics
Here check for your self:
http://www.federalcartridge.com/default.asp?pg=27&firearm=3
But please do show me on the Wolf ammo page where there is information about their "17 Mach2" ammo...
http://www.wolfammo.com/1_rimfire.htm
or please show me where Olin via Winchester has any data on their Mach2 ammo.
You will get the same data from Orlin, Remington, Wolf, and Others....