Power difference in Kral puncher

[oldnamvet]

I have a Kral puncher but no chrony.  I am wondering how much of a difference in fps you get between the lowest and highest power adjustments on the rifle. Sounds different but wondered if anyone had an idea of how much difference there is.  I do know that for plinking I get a lot more shots at the lower power level.

[TroyHammer]

What caliber?  With an average weight 18gr in 22 or 25gr in 25 low should be 350ish 800ish on high.

[oldnamvet]

It is a 22.  Exact velocity will vary with the pellet but I was wondering if you subtracted the low velocity from the high, what would be the difference?  Sounds like more than 400 fps.  No wonder I get so many more shots on the low power setting.  That is more than enough for target shooting in the 30 ft range in my basement.

[oldnamvet]

My curiosity has been satisfied.  I got one of the really inexpensive chinese chronys ($25) and tested it out on the Kral.
Starting at 200 barr pressure with wadcutters.
There are 5 small tic marks on the power indicator.
With the setting at each one I measured the fps.
With 1 and 2 there was no difference --- 530 fps
on 3 --- 694 fps
on 4 --- 811 fps
on 5, the max level --- 840 fps.
For rabbits and squirrels I would rarely have to go beyond 3 at the ranges I typically shoot them (40 ft or less).

[KnifeMaker]

Yep, a chrony is essential equipment wit a pcp. Linki for such an inexpensive chrony?


Knife

[oldnamvet]

Price went up since I got mine about a year ago.

Still pretty cheap.

https://www.aliexpress.com/item/32954736508.html?spm=a2g0s.12269583.0.0.4d4b7629daOnpH