Webley Raider Consistency Issues

[Ali-C]

Calling upon the massive and collective knowledge (fnar) of the BBS! My Webley is throwing a wobbley and she needs sorting out!
Well I've so far replaced missing sear screws and finally got an acceptable trigger, taken her down in power as she was a touch hot when I got her as some dozy bugger had bunged a fat washer in front of the hammer spring, and sorted a half decent scope for it. (Anyone want a quality Jeff and Jenny® 3-9x50 with a wonky ballistic ret? ) Now the old girl just needs a touch of consistency. The power curve goes from 9.9ft.lbs at 190BAR, peaks 11.8ft.lbs at 140BAR and goes back to 11.6 ft/lbs by 110BAR. Has anyone got any ideas on how to get her running a bit sweeter?

Ta,
Ali.

[secretagentmole]

Calling upon the massive and collective knowledge (fnar) of the BBS! My Webley is throwing a wobbley and she needs sorting out!
Well I've so far replaced missing sear screws and finally got an acceptable trigger, taken her down in power as she was a touch hot when I got her as some dozy bugger had bunged a fat washer in front of the hammer spring, and sorted a half decent scope for it. (Anyone want a quality Jeff and Jenny® 3-9x50 with a wonky ballistic ret? ) Now the old girl just needs a touch of consistency. The power curve goes from 9.9ft.lbs at 190BAR, peaks 11.8ft.lbs at 140BAR and goes back to 11.6 ft/lbs by 110BAR. Has anyone got any ideas on how to get her running a bit sweeter?

Ta,
Ali.

Try not putting so much air in, say fill to 160 bar!

[Charlts]

Fill to 165-170 tops, no need for anymore.

[Ali-C]

Aye, but at 160-170BAR it's running about 10.5ft.lbs. currently the only way I can get any reasonable consistency out of it is at 140-110 BAR, just doesn't seem right to me as it shoots up at what seems like too low a pressure, I'm just wondering if anyone else has had this and what can be done to flatten out the power curve a touch?

[Charlts]

What sort of consistency are you getting and what are you expecting? What have you done to improve it?

Sorry for starting with questions but it looks like you've found your sweet spot.

[Ali-C]

What sort of consistency are you getting and what are you expecting? What have you done to improve it?

Sorry for starting with questions but it looks like you've found your sweet spot.

I'm getting a curve from 9.9 ft.lbs. to 11.8 ft.lbs over a full charge (190 to 110BAR), so about 2 ft.lbs difference start to finish. I was expecting less then 1 over a charge to be honest.
Not done anything as of yet other than what I mentioned in the first post, only just got the gun and getting to know it, though somebody has clearly had a fiddle before. Never had a Raider before so I don't know if this is normal for them, but I was hoping for a somewhat flatter power curve as my current FN19 and the S200 I had a few years ago varied much less than 1 ft.lb (about 0.2 in the S200's case) over much the same fill pressures.