Reply With QuoteA m8 of mine chewned one of them gunz up 2 90ftlb, it shoot straight threw a garage door and dented the car inside
Genius loci
BSA Mercury refurb
Hey folks,
Had a BSA Mercury on my "to do" list for a while now, sloppy breech lockup, low power (8fpe), scratches to the blacking etc.
IIRC the Mercury "S" had a breech bolt instead of a pin to prevent sloppy breech - would this fit straight on a standard Mercury, or would machining be involved?
Also, what's the best way to sort the power? Just get a "standard" spring/seal kit from chambers/john knibbs?
Should be interesting either way...
Also, am I better to tune then get it reblacked, or sort the metalwork first - I suspect the latter as the gun'll need stripping to get a decent finish anyway?
Apologies for the numpty questions, been doin PCP for too long!
Cheers,
Dan
Registered User
A m8 of mine chewned one of them gunz up 2 90ftlb, it shoot straight threw a garage door and dented the car inside
They said you can't polish sh*t.. well mine's chrome plated
No great help to you Dan as he doesn't do them any more but John Bowkett used to transform Mercuries into really superb, smooth-shooting air rifles. The breech is, as you say, a prime area for improvement. I'm pretty certain JB used to machine them.
I have a Mercury tuning article or two somewhere (in fact I promised a scan to someone else on here a while ago but confess I can't remember who)
Adrian
Genius loci
Dave - Thanks, but I've already got the "Replay guide to Murcury Tuning" propping the bog door shut
Adrian - Thanks for the info, I suspect JB will be slightly beyond my price bracket, much as I'd love to have him turn his hand to my gun
Any info you might have to hand would be appreciated though
Cheers,
Dan
Ay oar keed, wheers me ponts?
Iam pretty sure it was me,pull yer finger out Draftschappy.Originally posted by draftsmann
No great help to you Dan as he doesn't do them any more but John Bowkett used to transform Mercuries into really superb, smooth-shooting air rifles. The breech is, as you say, a prime area for improvement. I'm pretty certain JB used to machine them.
I have a Mercury tuning article or two somewhere (in fact I promised a scan to someone else on here a while ago but confess I can't remember who)
Adrian
Ooooh bugger! Sorry Dave
Funny how the same names always come up on Mercury related threads innit?
Adrian
Dan, Dave, scan of article from SAR December '85 on its way to you
Adrian
Registered User
Can I be really cheeky and rather rude and ask for a copy as well please?
email: jason@heaven-knows.net
Thanks
Jason
"You see I'm against hunting, in fact I'm a hunt saboteur. I go out the night before and shoot the fox." - Tim Vine
YHM Jason
Adrian
Mr Robber does a PTFE piston head and buffer.....
Its one of the few things he stocks I would reccomend, they really do improve Mercuries and airsporters, ...Phil Bulmer did an airsporter tuning article last year I think........
Bet that hurt your head Pat.
Great Uncle Bulgaria, Chief Womble
Any info on tuning up on a Mercury would be much appreciated also. I have one of these fine guns I've re-sprung it and closed up the breach gap(A large padded vice) also I made a spring sleve out of thin aluminum sheet. Is it true you can get a larger swept area by taking out the Rubber buffer and making a shim to take up the extra lengh inside the piston housing? All helpfull coments greatfully received.
Rgds
Big Si
Lo there do I see my father. Lo there do I see my mother, and my sisters and my brothers. Lo do I see the line of my people back to its beginning. Lo they do call to me and bid me take my place among them, in the Halls of Valhalla, where the brave may live forever.
Genius loci
Originally posted by Big Si
have one of these fine guns I've re-sprung it and closed up the breach gap(A large padded vice)does that work??
I've heard of the breech-bolt mod, but never crimping the actual breech jaws themselves?
TIA,
Dan
Nfn rng w txt spk
It'd be better to machine a shallow counterbore in the side of the block and fit a thin belleville washer, a la Original 45. That'd always take up any clearance the same way - bit b100dy 'ard to do, though...Originally posted by Geordie
I've heard of the breech-bolt mod, but never crimping the actual breech jaws themselves?
TIA,
Dan
Regards,
Mikb
...history... is, indeed, little more than the register of the crimes, follies, and misfortunes of mankind. (Edward Gibbon: Decline and Fall of the Roman Empire)
Great Uncle Bulgaria, Chief Womble
Yes a big vice does work although go at it softly softly. I've never tried to machine a breach before. However I know that's what Venom do to there HW80s. Then they fit shimms. It can't be too hard to fit a screwed bolt a la HW35 though!
Rgds
Big Si
Lo there do I see my father. Lo there do I see my mother, and my sisters and my brothers. Lo do I see the line of my people back to its beginning. Lo they do call to me and bid me take my place among them, in the Halls of Valhalla, where the brave may live forever.
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