Inconsistent reg

[angrybear]

Gents, I'm having a nightmare with the reg in one of my MFR .20 cals.
Bought it off the bay a few months back & came with a short core, I can't get the short core below about 135bar, so I've swapped that for a std core.

After much faffing I've got it around 110bar, maxing at 11.6ftlb, but it's wildly inconsistent between 23-44 fps variation over a 12 shot magazine, it's got just enough end float to see/feel & 16 bellevilles in single pairs ()()() all new O rings fitted.

Any ideas to get it back in single figures.

[Millingman]

Get Kev to make you one, there great, i had a 16 shot string with no deviation at all, I've tried lane regs, Huma and another, nothing matched the consistency of Kevg's

[Squinty]

guess it depends what thickness belvilles are on the shortcore but 6x 0.5mm should be good for 80-100 bar.
If thicker 0.6mm are more suited to 120+ and probably have very little preload under 100bar.

If you buy some 0.5s probably need to get a vernier on it to set the end-float,maybe around  0.5mm.

In my limited (frustrated) experience with  Ebay/PCPGP jobs I'd put the inconsistency down to the core nose.

[angrybear]

/quote]

Yeh, doesn't really help me with the issue right here right now though