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Thread: Guess the inaccuracy issue BSA Mercury

  1. 29-03-2022, 08:27 PM #16
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    laverdabru
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    Quote Originally Posted by Hsing-ee View Post
    The trigger isn't great, but really this is springer pistol-level accuracy.
    Jeez - with one exception I'd be pleased to get 1" groups at 10 yards with my Wobbleys
    Webley Mk3 x2, Falcon & Junior rifles, HW35x2, AirSporter x2, Gold Star, Meteors x2, Diana 25. SMK B19, Webley Senior, Premier, Hurricane x 2, Tempest, Dan Wesson 8", Crosman 3576, Legends PO8. Kral Puncher K.
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  2. 29-03-2022, 08:57 PM #17
    BTDT
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    Quote Originally Posted by Hsing-ee View Post
    a. A dirty barrel.
    b. A dislike of RWS Superdomes.
    c. A scope issue.
    d. A barrel crown issue.
    e. Poor technique by me.
    f. The choke is at the wrong end of the barrel.

    Worth pushing a pellet up the barrel to check.
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  3. 30-03-2022, 06:33 AM #18
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    Quote Originally Posted by TonyL View Post
    You're getting the idea, Pete.
    I'm glad you understand my sarcasm

    Pete
    Far too many rifles to list now, all mainly British but the odd pesky foreigner has snuck in
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  4. 30-03-2022, 07:55 AM #19
    evert
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    Quote Originally Posted by Captain Bongo View Post
    It's a trick question. There is no inaccuracy issue. 1 inch at 10 yards is pretty good for a Mercury.
    Of course its a trick question!
    He claims that the barrel tension is correct, which is obviously a lie.
    How on earth could a Mercury barrel bolt have the correct tension, they come loose as fast as you cock the rifle a couple of times.
    Too many airguns!
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  5. 30-03-2022, 09:50 AM #20
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    flyingfish
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    Have you tried shooting it with your eyes open?
    Pete
    I travel alone
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  6. 30-03-2022, 09:56 AM #21
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    eyebull
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    Another vote for reverse choke.
    Good deals with these members
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  7. 30-03-2022, 09:57 AM #22
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    It's a BSA.
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  8. 30-03-2022, 10:06 AM #23
    bill57
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    I'm upset that I gave a serious reply now ....
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  9. 30-03-2022, 10:40 AM #24
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    Quote Originally Posted by I. J. View Post
    Is there a prize if we guess it right?
    A vintage copy of Airgun World! March 1980 which mentions the Russian invasion of Afghanistan as pressing on the 'minds' of the Government, and thus distracting from imposing more stringent restrictions on airgun ownership. Plus ca change ...
    Last edited by Hsing-ee; 30-03-2022 at 10:49 AM.
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  10. 30-03-2022, 10:42 AM #25
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    Quote Originally Posted by BTDT View Post
    f. The choke is at the wrong end of the barrel.

    Worth pushing a pellet up the barrel to check.
    Ah yes ... that would do it. 'Shed tuner' once mentioned it as a possibility with BSA barrels... This will be the first point I'll try. Then it's getting stripped and scrubbed and relubed.
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  11. 30-03-2022, 10:42 AM #26
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    Quote Originally Posted by trajectory View Post

    Ps did you get around to the '65 or did I miss your post?

    Best of luck.
    Forgot to order the little underport buffer so waiting on that ...
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  12. 30-03-2022, 10:44 AM #27
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    Quote Originally Posted by look no hands View Post
    Is it because its a BSA and not a HW.

    Pete
    Right, it's getting a direct comparison with an HW35 at the end of this. They were competitors at the time, and the Mk IV is the 'best' of the old school standard Mercurys... so lets see how best it really is...
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  13. 30-03-2022, 11:23 AM #28
    evert
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    The dreaded "reverse choke" seems, at least to me, to be present in the more recent supersport/lightning barrels (recent like after 2000), not in the earlier ones.
    Too many airguns!
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  14. 30-03-2022, 03:54 PM #29
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    Quote Originally Posted by evert View Post
    Of course its a trick question!
    He claims that the barrel tension is correct, which is obviously a lie.
    How on earth could a Mercury barrel bolt have the correct tension, they come loose as fast as you cock the rifle a couple of times.
    Mine don't, so what did you do wrong

    Pete
    Far too many rifles to list now, all mainly British but the odd pesky foreigner has snuck in
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  15. 30-03-2022, 05:05 PM #30
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    jjjohn
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    Use 5.6 instead of 5.5 pellets.

    oops thought it was .22 ,my bad
    Last edited by jjjohn; 30-03-2022 at 05:34 PM.
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