I have problems with my newly acquired Mk6 The power is dreadfully low.
I checked the power and it was only about 6.5 fpe (450fps with superdomes). Ho hum I thought and ordered a kit from Welsh Willy.
1st stripdown revealing a broken mainspring and fitting Wills kit 450 fps again!
Put a new breech seal 460 fps
Second strip down with new piston seal and being very careful not to knick it on the deburred edges.
Still 450-460 fps.
Will wonders whether I have a continent spec. version with a small transfer port but I enlarged it VERY slightly with the same round file that I used on my MK4( too close to1/8 in for me to measure a difference) and asked me to check for a hole in the piston head. That must wait until after the Bash but I don't remember seeing one.
Does anyone have any ideas or actual figures for power on a .22 Mk6, or even general comments on the Gamo Meteors.
P.s Wills kit has worked wonders again firing cycle wise.
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