FX (Solved) Panthera 500mm liner 177

Quito

Member
May 29, 2024
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Hi guys,

I was wondering if I could get some advice or help.

non sub 12

I changed my Panthera compact liner for a 500mm liner. I bought it as a set with apparently a carbon sleeve included.

cleaned the barrel and all installed properly.
The problem is that the 13g Zan slugs are all over the place.
Started with a 90 reg pressure and the power wheel at 13. Micro adjuster at 3. FPS is 922 and a spread of 6 (21 slugs)

I tried many adjustments and the reg pressure all the way up to 140bar. And a fps over a 1000.
nothing seems to make tight groups.

I have no idea what could cause this problem.

i used zan slugs 13g and also tried with jsb heavy’s
these are dead accurate with the compact barrel.

what am I missing here..

thanks
 
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