Thu Aug 02, 2018 5:57 pm
Yondering wrote:Acpguy wrote:
Second, you are absolutely wrong about the length of a gas tube having “absolutely nothing” to do with dwell time. Shorter or longer gas tubes increase or decrease the distance between the gas port and muzzle, absolutely affecting the dwell time ....but you knew that;)
See the bit about the pigtail gas tube. The only way to change dwell time is to change the distance between gas port and muzzle. Are you saying the Dracos barrel does that?
Thu Aug 02, 2018 9:14 pm
Fri Aug 03, 2018 8:16 am
The barrel of claim 9 wherein said filler material includes material taken from the group consisting of: hydraulic cement, at least 50% by weight of calcium sulfate, 48% of less by weight of portland cement, epoxy, resin, graphite and metal particles.
Fri Aug 03, 2018 11:12 am
BlDtyLry wrote:
BTW - Reading several articles, three things effect dwell time: Gas port to Muzzle distance, Gas port hole size, and Gas tube length.
Fri Aug 03, 2018 12:04 pm
Fri Aug 03, 2018 12:52 pm
BlDtyLry wrote:Sorry but a tried...peace out!
Mon Aug 06, 2018 8:22 pm
Tue Aug 07, 2018 11:36 am
BadKarma wrote:I’m confused and now I have to go look dwell time.
Tue Aug 07, 2018 11:42 am
Acpguy wrote:BadKarma wrote:I’m confused and now I have to go look dwell time.
Ya he has that effect on people lol. It’s really not that hard. Dwell time is the amount of time the BCG is engaged by gasses. So from the port hole (where gas first reaches the gas tube to engage) to the end of the muzzle (where excess gas is then released out the barrel) is dwell time. Anything that affects this time.....GAS TUBE LENGTH(because it changes where the port hole is located changing that overall length) is one thing that affects dwell time.
Tue Aug 07, 2018 11:53 am
Acpguy wrote:Ya he has that effect on people lol. It’s really not that hard. Dwell time is the amount of time the BCG is engaged by gasses. So from the port hole (where gas first reaches the gas tube to engage) to the end of the muzzle (where excess gas is then released out the barrel) is dwell time. Anything that affects this time.....GAS TUBE LENGTH(because it changes where the port hole is located changing that overall length) is one thing that affects dwell time.
Tue Aug 07, 2018 7:46 pm
Acpguy wrote: Anything that affects this time.....GAS TUBE LENGTH(because it changes where the port hole is located changing that overall length) is one thing that affects dwell time.
Tue Aug 07, 2018 8:07 pm
Tue Aug 07, 2018 9:18 pm
Yondering wrote:Thank you MadPick, you understood what I was saying.Acpguy wrote: Anything that affects this time.....GAGA S TUBE LENGTH(because it changes where the port hole is located changing that overall length) is one thing that affects dwell time.
We are specifically talking about this Dracos barrel, which apparently adjusts gas tube length but not the gas port location, if I understand correctly. Your argument about changing the port location with tube length is an attempt at misdirection away from the point of the discussion. We all know that changing port position affects dwell time. My initial comment was that changing gas tube length without changing the gas port has no affect on dwell time.
Tue Aug 07, 2018 9:22 pm
MadPick wrote:Acpguy, I think it's a little too early for you to proclaim victory
The bottom line is this: The dwell time is the time it takes for the bullet to travel from the gas port to the muzzle. Do we all agree on that?
Tue Aug 07, 2018 9:23 pm
BadKarma wrote:Question: If blow back is the amount of gas released into the gas block, gas tube and eventually to the gas key, length of tube or restriction on a variable gas block would affect that function correct? Not change the dwell time?