...aren't most Olympic competition 22 pistols ported? I doubt that it's strictly a gimmick... I'm sure it works to some extent. I'm just not sure that in a heavy barrelled 22 rifle that it would make a significant enough improvement to justify the added cost. A pistol is another story.

"Progress, far from consisting in change, depends on retentiveness..those who cannot remember the past are condemned to repeat it." Santayana