"Saltlake58"I too have a gen 1 Impact with a .25 Smooth Twist Barrel. The video so far confirmed I'm on the right tuning track. My goal is to obtain a .22 STX barrel, tune and shoot. This video guide will be a fantastic tool!
Steve - thanks for admitting how intimidating a gun like this can be. I love turning the wrenches on my Marauder, but the Impact takes it to a whole new level. The ease of adjustments is incredible and intimidating. I do want to put a few more tins of .25 through it before buying the STX in .22, and so far the gun is operating fantastically.
Oh, and I agree on shooting at lower speeds. When I got the gun, it was shooting over 900 FPS, and not all that accurate. I spent some time on the chronograph and brought the speeds down to about 830 FPS using (JSB .25 Caliber Kings) the power wheel on 2 and the valve knob (I'll have to look and see where it is), and now at 50 yards, 30 shot groups are under 2 inches. Most of the time, the pellet is just going through the same hole. The problem now, is the shooter's shaky hold and style.
. That needs more work than the gun.
Please keep them coming! I hit the little "Bell" on YouTube so I'll be notified.
Many thanks,