I wish there was a way to make the hyper velocity ammo more accurate but I guess it would take a barrel manufacturer to figure it out. You really need to have CMMG removeĪny doubt regarding what reamer they use for their products. Then all is well however, if it can't you may be in for a rude awakening. If CMMG's chamber adapter has a depth that can accomodate hyper-velocity cartridges This isn't nearly as important when using a conversion, but it is vitally important if hyper-velocity isįired consistently in a dedicated non-ANSI Sporting chambered barrel. It can also result in a case that won't eject.Īlso to consider is what the additional expanding gas is doing at the throat use of hyper-velocity nearlyĪll the time will accelerate deterioration in an area of your chamber/barrel that is essential to accuracy. Rearward to the rim where the bolt's mass and recoil spring are unable to retain that extra pressureĪnd, more often than not, an OBD type condition can result. 22 is a blow-back action, that the pressure expands the case This scoring often, but not always, weakens the case in the area of the leade or throat and causes increased ThisĮxtra length means the brass sits on the rifling (in a non-ANSI sporting chamber), and is scored as the case is chambered.
This happensīecause the hyper-velocity case is. The danger results from over-pressure, NO, not the kind that will destroy your barrelīy blowing it to smithereens, but definitely the kind that result from an OBD. There are factors resulting from Stinger and other hyper-velocity rimfire cartridgesīeing fired in a non-standard ANSI Sporting.