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 Post subject: BT65 cocking problem
PostPosted: Tue Oct 25, 2016 1:41 pm 
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Joined: Mon Aug 24, 2015 4:56 pm
Posts: 462
Location: Tecumseh, Ontario in South Western Ontario
Apparently this is old news from what I've read on the gta http://www.gatewaytoairguns.org/GTA/ind ... ic=85225.0 so hopefully someone has solved what seems to be a common problem with these guns.
It has nothing to do with lube or the hammer spring because the bolt slides smoothly back until the last 1/8" where it runs into a brick wall. I took it apart and when the hammer comes in contact with the toggle sear, 1/8" from the end it can't advance any further without a crazy amount of pressure which can't be right. If you slam the bolt back it will cock about half the time but you're never sure. If it doesn't fire you have to remove the magazine and try again or it will load another pellet. I polished the sear and the hammer section that comes in contact with it but it didn't make any difference.
I'm guessing it's in the trigger mechanism but would love to hear from someone who knows for sure before I let the springs fly.

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 Post subject: Re: BT65 cocking problem
PostPosted: Tue Oct 25, 2016 2:46 pm 
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Joined: Tue Feb 18, 2014 7:24 pm
Posts: 666
Location: Dowling ,ontario
Had the same issue a while back. I ended up adjusting the trigger. I followed this guide and it worked pretty well.http://www.airgundepot.com/at44-bt65-qu ... ticle.html
Hope this helps.

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 Post subject: Re: BT65 cocking problem
PostPosted: Tue Oct 25, 2016 3:44 pm 
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Joined: Mon Aug 24, 2015 4:56 pm
Posts: 462
Location: Tecumseh, Ontario in South Western Ontario
Great guide, thanks. It helped me get the trigger right and eliminated the adjustment aspect from the problem.
This has happened to me before. I wrote in with a problem and couldn't leave the workbench until I figured out what was going on.
I checked and rechecked everything I could think of until having the hammer tube assembly in my hand I tried cocking it without the receiver and bolt attached. It cocked just fine over and over again. There must have been something restricting the bolt right when the hammer coincidently made contact with the sear. It didn't take long to find the antibounce device, which is a solid bar now (pictured below) was restricting the bolt by what must have been a few thousands of an inch but enough to restrict cocking without a slamming effort. Actually unlike some of the other reports I read mine was hard to cock from day one. I thought it needed a breakin period or that's how all bolt action guns were.
Image

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