Reply To: FX Impact .25 with JSB MkII 33.95gr — what FPS are you getting?

Forums PCP Airguns FX Impact .25 with JSB MkII 33.95gr — what FPS are you getting? Reply To: FX Impact .25 with JSB MkII 33.95gr — what FPS are you getting?

Link

sniperlabyo
Participant
Member

like I said with all adjustment max out with out adding any mods without going over 150b   At an average of 5 impact tested got around 865fpd with 34g, some barrels are a little looser so you will see faster speed up to 880fps. 

With the mod external tube I’m thinking around 925fps with 34g at 150-155b reg pressure.

its more efficient at 140b with the added tube I have the option to shoot over 900fps.