Tonight, getting ready to go up against Kirby's new R7 later this weekend, I shot two of my favorite little springers, 50 rounds each, standing, off-hand at 10 meters.
The first 5 x 5-round groups were for sighting in at 10 meters and practice. The second 5 x 5-round groups were scored using a 10-meter, 5 bull Edelmann practice target and shooting Vogel Greens, 4.5mm, 8.3 grain match pellets.
The HW30s was tuned by CDT, has Maccari innerds, and is scoped with a BSA 4 x 32mm AO .
The CZ-634 was tuned by Gene Curtis, including some very nice trigger work, and is scoped with a BSA 2-7x 32mm AO.
Scores:
HW30s 165
CZ-634 161
I think it is really a coin toss between the two rifles. The HW30s may be a bit easier to shoot and at 530-550 fps is target friendly. The CZ now actually has the better trigger (yes, better than even the Rekord adjusted to about a 1-lb pull!), and is shooting around 720 fps, I think. It is particularly lethal to small rodents. I hadn't really shot many 10-meter targets with either recently. I was pleasantly surprised to see how well I did with both springers. I have a "few" air rifles, it's true, but for just plain "fun to pick up and shoot", these nice little low to medium power springers are hard to beat! I paid $215 for the HW30s and $179 for the CZ-634 new, and both are now less than 1 year old. I don't think you will find either at that price any more.