Liko81 wrote:Additionally, you're dead wrong. Most .22 rimfire ammo, when fired from a rifle, is transsonic; supersonic at muzzle, but by 100 yards it has slowed to subsonic. Such a round is disrupted by its own shockwave and is thus less accurate than a round that maintains either supersonic or subsonic velocity its entire path.
Both high-velocity ammunition and subsonic ammunition solve this problem in different ways. Subsonic is subsonic even from a rifle's muzzle, and thus yes the ballistic path is far more stable. High-velocity ammunition is supersonic out to much further distances and similarly is more stable. Match-grade, which is way more expensive than "regular" sub or supersonic .22, is more consistent in powder charge and other QC aspects, and you're right, it's subsonic because then the path is guaranteed to be on one side of the sound barrier through its entire flight.
I get a kick out of that, you tell me I'm "dead wrong" and then in your next sentence and paragraph you prove me right. There are multiple decades worth of industry observation that support subsonic being more accurate in the long run than transsonic. I fired every target for my Expert qualification with plain jane Winchester T-22, not Eley Match or Tenex, and used to shoot creditable scores with it in 100 yard smallbore matches, shooting against people that could afford Eley. Not that I never used Eley, I just saved the expensive stuff for the really important matches.
That said, the original poster stated that he was looking for a target rifle, and I suggested a few, from cheap to expensive, and then you stated that he needed "high velocity if not match grade" to shoot 100 yards and it was the juxtaposition of the two in your statement that led to my response.