LW polygon barrels

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    mcoulter
    Participant
    Member

    Just a quick update on this.  I did find that the barrel leaded up really badly shooting H&N and Crosman pellets.  This definitely did not help my accuracy.

    I'm now finding that the shroud and end cap is likely playing some role in my gun's accuracy issues.  More here:

    https://www.airgunnation.com/topic/brocock-sniper-hp-in-the-house/page/2/#post-739668 

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    elh0102
    Participant
    Member

    Here is my advice on barrels, and it's worth what you are paying! Get the barrel clean, really clean, properly using a rod and nylon brush, then polish with JB paste. My limited experience with poly barrels suggests that pull-through cleaning is not going to be sufficient. If you have access to a bore scope, now would be a good time to take a look. If the barrel doesn't shoot within the next 100 or so pellets, it probably never will, and it probably has a machining error somewhere. Send it back, or just buy a new barrel. Life is too short to fuss with a bad barrel. And if I were replacing the barrel, I would go with a traditional cut or button rifled barrel. The barrels on standard production rifles are always a crap shoot. Some are very good, a few are very bad, and the rest are somewhere in between. 

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    mcoulter
    Participant
    Member

    Hi @elh0102, thanks for your advice!  Here's a quick update after a good cleaning.  (no JB Paste yet)  I definitely think this barrel show potential.  Here are 5 10-shot groups at 62 yards.  The top 3 were essentially shot during a period of dead-calm.  The bottom two were affected by wind.  I did finally get around to ordering a Patchworm kit.  We'll see if that's able to pull out any fresh gunk from the barrel 👍

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