FX FX Crown MK2 .25cal 380mm barrel

[Corvid_hunter]

I bought a .25cal 600mm MK2 Crown and ordered a 380mm on a whim. The current tune has 25gr pellets @ 910fps with the transfer port on high and the power wheel on max. It's the factory tune and shoots ragged 1 hole groups at 50 yards if I'm doing my part. What can I expect out of the 380mm barrel for speed, accuracy and distance? I can't use a moderator so I don't want to be shooting it too fast. I'm kind of wondering if I should have dropped down to the .22cal.

 

[JaceSpace1369]

I bought a .25cal 600mm MK2 Crown and ordered a 380mm on a whim. The current tune has 25gr pellets @ 910fps with the transfer port on high and the power wheel on max. It's the factory tune and shoots ragged 1 hole groups at 50 yards if I'm doing my part. What can I expect out of the 380mm barrel for speed, accuracy and distance? I can't use a moderator so I don't want to be shooting it too fast. I'm kind of wondering if I should have dropped down to the .22cal.

For every inch of barrel you gain or lose ten to fifteen feet per second, so you may loose around 108fps

 

[bigHUN]

Wondering how the 380 Crown liner/barrel could be retrofitted for L2, I have not seen these short liner for Impacts.

 

[18.13]

With the reg at 150 I was shooting the 25.4gr at 850fps put the 700mm on and gained 135fps