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I have a HW98 rifle. I used to use a standard export mainspring "Exportfeder für die Luftgewehre Weihrauch HW 85, 98, 95 und Norconia B 88", shortened for 16 J. It worked fine, but lifetime was horrible. Each month the spring lost power. After half a year was dead.
So I tried this spring. It was necessary to cut 1,5 coils for 16 J. After one month, the spring has still the same power and consistency is perfect. Output from FX radar, pellets QYS 0,55 g:
Shot count: 10
Low: 238
Hi: 241
Avg: 239
STD Dev: 0.9
Spread: 3.0
I will see the lifetime. However, the lifetime has seemed fine so far.
Bewertung:  [5 von 5 Sternen!] |
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