Dwell time??
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Wouldn’t a rifle lenght gas system take away that whomp felling?
Maybe speed it up a bit without using hot ammo.
My understanding is the reason they are using Carbine lenght systems, is so it’ll reliably feed anything.
But tat causes overpassing and thereby interferes with the dwell time.
I guess it’s cheaper to deal with the warranty that’s caused by carbine lenght system, than having a lot of people sending their rifles back because the rifle lenght system won’t reliably fire all types of ammo?
Maybe speed it up a bit without using hot ammo.
My understanding is the reason they are using Carbine lenght systems, is so it’ll reliably feed anything.
But tat causes overpassing and thereby interferes with the dwell time.
I guess it’s cheaper to deal with the warranty that’s caused by carbine lenght system, than having a lot of people sending their rifles back because the rifle lenght system won’t reliably fire all types of ammo?
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Tapping the gas farther out would make your problem worse if you are trying to speed up the cycling. As the gun is you can't really do anything about it. I think TNA has an adjustable gas block out or in the works.
BattleRife
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"Dwell time" is the period between when the primer ignites and the bolt unlocks. It is small fraction of the overall cycle time and I sincerely doubt you can feel it or distinguish it from other stages of the cycle.
I was gonna touch on that but I thought it was pretty clear he's looking to speed up the cycling.
A whooomp, can be a slow bolt velocity, it could mean the rifle and ammo combo are working closer to the lower boundary.
Like BattleRife said. This is a push rod system with the gas building up pressure inside the gas block. It is not like an AR where the gas travels all the way back to the receiver. The distance for the gas to travel to pressurize the piston chamber is minimum in push rod gun with piston at the gas block. The AR thing that long gas tube means longer dwell time does not apply to push rod gun with piston at gas block in the same concept .
The Dwell time discussion is more prevalent in AR because of the gas tube ( gas path) length. In push rod gun the gas path is close to nothing. The discussion is down to how far the gas block to the muzzle and the gas port size. If anything a long distance between gas block and muzzle means theoretical time for pressure to drop to zero in the system is longer. The system is pressurized for a longer time. But whatever they combine all these things ( gas port size, gas chamber volume, piston chamber dist. to muzzle) the bullet is preferably out of muzzle before the unlocking starts.
So a slow whomp may mean many many things - could be undersized gas port, low pressure ammo, recoiling spring has the wrong spring ratio...yada yada. The most obvious thing is to use a proper 5.56 ammo and test it out.
Like BattleRife said. This is a push rod system with the gas building up pressure inside the gas block. It is not like an AR where the gas travels all the way back to the receiver. The distance for the gas to travel to pressurize the piston chamber is minimum in push rod gun with piston at the gas block. The AR thing that long gas tube means longer dwell time does not apply to push rod gun with piston at gas block in the same concept .
The Dwell time discussion is more prevalent in AR because of the gas tube ( gas path) length. In push rod gun the gas path is close to nothing. The discussion is down to how far the gas block to the muzzle and the gas port size. If anything a long distance between gas block and muzzle means theoretical time for pressure to drop to zero in the system is longer. The system is pressurized for a longer time. But whatever they combine all these things ( gas port size, gas chamber volume, piston chamber dist. to muzzle) the bullet is preferably out of muzzle before the unlocking starts.
So a slow whomp may mean many many things - could be undersized gas port, low pressure ammo, recoiling spring has the wrong spring ratio...yada yada. The most obvious thing is to use a proper 5.56 ammo and test it out.
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If he uses an adjustable block then he should be able to increase the volume acting across the piston and increase the cycling speed. Assuming his rifle isn't junk like many are anyway. I wouldn't dismiss the possibility of an undersized port.
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The womp, womp, womp is not all that much different than the sproing, sproing, sproing of an AR buffer and spring.
Perhaps the 180 systems have more feel to the movement of the bolt due to the bolt riding far more freely than in the tight fitting recievers of what you might be used to in ARs, XCRs or even SU16s. They all have recivers that are snugly fitting around their bolt cariers, so you might notice the movement of the carrier less.
The Tavor and even the T97 have a similar ride on the rod system and loose fit within the receiver, but the feel is overlooked because the ride occurrs within the rear of a rear heavy center of gravity, where it is less noticed.
Ask around if anyone else has a similar rifle and ask to shoot to compare it.
That will tell you if it is the rifle or if you are an overly sensitive individual.
Thread must be about mechanical dwell time.
Regular dwell time, is the time between seeing a new rifle and buying it.
Happy Shooting
Perhaps the 180 systems have more feel to the movement of the bolt due to the bolt riding far more freely than in the tight fitting recievers of what you might be used to in ARs, XCRs or even SU16s. They all have recivers that are snugly fitting around their bolt cariers, so you might notice the movement of the carrier less.
The Tavor and even the T97 have a similar ride on the rod system and loose fit within the receiver, but the feel is overlooked because the ride occurrs within the rear of a rear heavy center of gravity, where it is less noticed.
Ask around if anyone else has a similar rifle and ask to shoot to compare it.
That will tell you if it is the rifle or if you are an overly sensitive individual.
Thread must be about mechanical dwell time.
Regular dwell time, is the time between seeing a new rifle and buying it.
Happy Shooting
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It’s more to do with the speed of the bolt than just the whomps..The womp, womp, womp is not all that much different than the sproing, sproing, sproing of an AR buffer and spring.
Perhaps the 180 systems have more feel to the movement of the bolt due to the bolt riding far more freely than in the tight fitting recievers of what you might be used to in ARs, XCRs or even SU16s. They all have recivers that are snugly fitting around their bolt cariers, so you might notice the movement of the carrier less.
The Tavor and even the T97 have a similar ride on the rod system and loose fit within the receiver, but the feel is overlooked because the ride occurrs within the rear of a rear heavy center of gravity, where it is less noticed.
Ask around if anyone else has a similar rifle and ask to shoot to compare it.
That will tell you if it is the rifle or if you are an overly sensitive individual.
Thread must be about mechanical dwell time.
Regular dwell time, is the time between seeing a new rifle and buying it.
Happy Shooting
Seems like it’s moving in slow and whompy… lol
And I can handle the whomp, I brake everything.. lol
this ^^^
While I haven't worked with these rifles ever.... I do understand dwell time in this type of system.
In the M14 platform dwell time was a topic of discussion many times and in tuning up those rifles , some of them needed various remedies.
Gas port size and internal volume of the gas system parts were the various means of remedy.
The dwell time was adjusted for remedy of cycling issues with the standard test ammunition across all rifles being 150gr federal powershok.
I see no real reason to fret over the "feeling" the OP is talking about but if an adjustable gas block of proven design becomes availlable it might be worth a try.
The Schuster adjustable gas block for the piston and cylinder driven M1 and I think availlable for the M1A/M14 , incrementally increases the internal volume of the cylinder so more gas builds up during the dwell time which is the time the piston sits idle before gas pressure begins to move it .
