High speed full auto issues

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Posts: 1
Joined: Thu Mar 19, 2015 8:20 am

High speed full auto issues

Postby rc8n21bf » Thu Mar 19, 2015 8:31 am

Ok I have fully upgraded a G&G combat machine. ON the chrono its around 35-40rps and 330 fps. upgrades include m90 spring, madbull ultimate hopup, Steel bushings, shs piston, ball bearing piston head, aluminum cylinder, gate pico aab mosfet, matrix 3000 turbo motor. shs delayer chip, 2000mah 20c 11.1v lipo. The gun has been shimmed perfectly and is ultra smooth. Has about 10000 rounds through it with no wear at all. The only problem I have with it is that on semi auto it is perfect no issues but when I go to full auto the bbs are all over the place some are kinda flopping out ten feet in front of me. I thought it was a hopup issue or barrel issues so I swapped the entire upper out with a gun that works fine and still the same problem. Gun makes perfect compression with no leaks. I was thinking the tappet plate? Im kinda stumped right now maybe Im missing something?

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