Ideal Chamber Size

Building or modifying BB, Airsoft, and Pellet type of guns. Show off your custom designs, find tips and other discussion. Target practice only!
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demilus
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Tue Aug 22, 2006 3:36 pm

I recently made an airsoft bbmg and a .177 bbmg. They were both about 6 inches long and have a diameter of 1.5 inches. The airsoft one works great and has a huge resovoir for bbs, but the .177 bbmg would only shoot intermittantly and then shoot like fifty in a half second (not hard mind you) and then not any more till i messed with it again. I was wondering if there was some holy grail for a chamber size. I have a 10gal tank that i use. It goes up to 125psi. Oh, for the barrels, i used 1/4 in brakeline for airsoft and then copper tubing that had been flared at one end for the .177. It was almost a perfect fit. Also, the .177 had a barrel that was only about 11 or 12 inches. Thanks in advance
Benny
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Tue Aug 22, 2006 3:43 pm

That was really vauge, do you mean the chamber of the BBMG or the compressor?
If its the BBMG then the smaller chamber is the bigger. (higher pressure)
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demilus
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Tue Aug 22, 2006 5:19 pm

i meant the size of the bbmg. The reason im asking this is because i made a .177 bbmg and it didnt work. I think that is because it had too big of a chamber. I was wondering if there was some sort of a standard or a good size for a bbmg.
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chosen_way
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Thu Aug 24, 2006 1:35 am

try changing the chamber of the bbmg to smaller, or use a bigger barrell so the bbs can get out easier.
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noname
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Sun Aug 27, 2006 12:37 pm

Cut the chamber down a couple inches and (if possible) move the barrel down a little.
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