Was looking at the H&N Baracuda Match .22, 21.14 gr. pellets. You have a choice of 5.51mm (.217”) or 5.52mm (.2175”).
Which would be correct for the Air Venturi Avenge-X?
I’m thinking you managed to get a lemon. It happens. Took mine out of the box, cleaned it, adjusted the trigger and mounted scope. This is a 10 shot group at 20 yards off a bag rest. Averaging around 874 fps (Garmin Xero Chronograph) with 14.3 grain hollow points. I can’t wait to start tinkering...
There is really not a choice. The early versions had a shorter barrel, 19.5 inches I believe, and the newer guns barrel is 3” longer, taking up the “extra“ space in the shroud.