What in the hell spring set up are you using and it must be crippler on the arm as the short stroke and a bit longer breech block don’t lend it to the golden ratio of cocking. That being said ,some guns are just overachievers.My HW80 is one of the few springers I have that really NEEDS a full blown artillery hold by the books. These were JSB 10.3s. H&N 10.65 pellets are a good 75fps slower
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I have tested .22 with every major kit out. Excluding older Venom and Tinbaum. .
Macarri, newest power kit.142x 865 ..Vortek, both versions.. The older 148 x 865 pg3 and the newer148x 905 and without port work and the proper fitting seal were snap chatters. I actually just did a Macarri spring and my own top hat as well as ported it to 3.4 mm and it’s delightful at 875 with 14.66 Ftt.
The most powerful .22 I have put together uses a .135 wire. Breeze to cock.
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