.25 mk2 erratic
Hi Guys
After 350 shots put gun through my chrony.
220 bar fill using jsb kings
Extreme spread of 29 fps standard deviation of 5.9 fps. 40 shots before it fell off the regulator at 150 bar.
Barrel was cleaned from new.
This seems rather poor performance. Range was 880 fps to 910 fps.
Any thoughts?
Cheers
All Replies
Thanks for your interest.
Shot count probably about what i exoected, bearing in mind only filled at 220 bar, believe at 250 bar(max) maybe another 10 to 20 shots.
Accuracy is variable, one moment brillant another the POI has changed.
Lots of others with the Vulcan .25 have vety low ES SD ie single figures.
Others talk of settling in period, but whats the norm?
Cheers
How’s the accuracy? ES maybe a little high but 40 shots from 220bar down to 150bar for a .25 isn’t bad and about on par with what most get. How many shots were you expecting to get at ~900fps?
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At least put 500 or so through first to settle it in. Maybe check breech o-ring to be sure it isn’t blowing by pellet probe.