Variable speed BBMG breech

Building or modifying BB, Airsoft, and pellet types of guns. Target practice only!
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jackssmirkingrevenge
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evilvet wrote:Jack is a nitpicker, nah nah nah :P
I think spudfiles knows that already :P :D
33% increase in muzzle energy for like projectiles against barrel I/D is one thing, but in this case I am talking about the potential energy loss past a viscous liquid seal versus the main air stream down the barrel.

When the bolt is in the retracted position behind the air inlet (about 90% of the duty cycle) the path of least resistance is forward.


I see your point, still, how about wiping off the gun oil and wrapping it in masking tape until it's a tight fit, just to attempt to quantify the difference?
hectmarr wrote:You have to make many weapons, because this field is long and short life
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