Zach,
I am getting 5/8"-3/4" depending on what kind of day I'm having. I use Simmons "Sweet Seventeen" scope in 2-7X. The elevation adjustment is calibrated to the trajectory of the 17g. bullet. I chose the 2-7X as a hunting scope. The crosshairs are fairly heavy and tend to cover my groups @ 100 yds.. I suspect the rifle would shoot tighter if I used a higher magnification scope with finer crosshairs.
I tried CCI, Remington and Hornady ammo. Mine preferred the Hornady slightly more than the Remington, although the Remington was close. The CCI shot good, but was edged out by the Remington and Hornady. I have a friend who has several 17's and a couple of his shoot the CCI the best. I guess each gun has it's particular likes.
Hornady just came out with a 20g. XTP bullet, but I haven't tried it. Since I already have a stock of 17g. ammo I guess I'll just stick with what I have, because the gun already shoots better than I do. :grin:
Hope you enjoy your new toy when you get it.
Best,
TnNuc