Tuning .25 King slugger

36gr H&N at 940 fps

33.49 JSB KnockOut at 970 fps

100 yards 

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Wow! Did you have to modify your Uragan beyond adjusting the reg and HST to achieve that result?

Installed Huma reg set to 155 bar, ovaled and radiused barrel port and polished bore, leade & crown.


You obviously know what you’re doing. I’m not familiar with the brand, but I keep reading good things about it. That there is some good shooting