Wk 180

Jamie

Jamie

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Are these over gassed? Sure seems like it

Adjustable gas block available ? The XCR style would be a great idea.

Or could one drill and tap into the factory block to make it adjustable ?
 
Jamie said:
Are these over gassed? Sure seems like it

Adjustable gas block available ? The XCR style would be a great idea.

Or could one drill and tap into the factory block to make it adjustable ?
Click to expand...

They are over-alotofthings

Hyped primarily.

This things are garbage.

Is there any fanboys left ?
 
Jamie said:
Are these over gassed? Sure seems like it

Adjustable gas block available ? The XCR style would be a great idea.

Or could one drill and tap into the factory block to make it adjustable ?
Click to expand...

They are a bit over-gassed, as I understand it they chose to use a carbine length gas system with a rifle length barrel to increase reliability with the plethora of ammo that it would be used with by bubba from west to east coast.

TNA sells longer gas systems for the rifle and they may also sell an adjustable gas stock

But really it's no drama, you'll enjoy the rifle just as much one way or the other :)
 
Rick911 said:
They are over-alotofthings

Hyped primarily.

This things are garbage.

Is there any fanboys left ?
Click to expand...

Thank you for you very positive and helpful reply. Lol.

I picked one up on a trade and tossed in a two stage national match trigger, SOPMOD stock,brake and a ambi mag release. Fed it some 77gr match ammo I ran in my SPR and it shot very well.

Just think slowing it down might be a good thing.
 
Jamie said:
Thank you for you very positive and helpful reply. Lol.

I picked one up on a trade and tossed in a two stage national match trigger, SOPMOD stock,brake and a ambi mag release. Fed it some 77gr match ammo I ran in my SPR and it shot very well.

Just think slowing it down might be a good thing.
Click to expand...

ha !

I know, i know.

Glad to see the rest seems to work fine for you.

That is at least that.
 
Yes. A rifle length barrel with a carbine length gas system was a horrible design decision. Gases are tapped early while pressure is high, then gas flow occurs for a long time while the bullet traverses the relatively long distance from the gas port to the muzzle. Long tapping times x high pressure = massive gas volume, resulting in elevated stresses and high moving part velocities. Very poorly thought through, in my opinion.
 
BattleRife said:
Yes. A rifle length barrel with a carbine length gas system was a horrible design decision. Gases are tapped early while pressure is high, then gas flow occurs for a long time while the bullet traverses the relatively long distance from the gas port to the muzzle. Long tapping times x high pressure = massive gas volume, resulting in elevated stresses and high moving part velocities. Very poorly thought through, in my opinion.
Click to expand...

That's not how a short stroke piston rifle works. Barrel length Vs where the gas block is located isn't really relevant as gas is vented off as soon as the piston moves the desired distance. So it's really only port diameter and the dimensions of the piston that are in play here.

In an ar15 direct impingement model, gas system length is relevant to barrel length as that directly determines how much gas is pushed back in to the action.
 
uAJollyRogering said:
That's not how a short stroke piston rifle works. Barrel length Vs where the gas block is located isn't really relevant as gas is vented off as soon as the piston moves the desired distance. So it's really only port diameter and the dimensions of the piston that are in play here.

In an ar15 direct impingement model, gas system length is relevant to barrel length as that directly determines how much gas is pushed back in to the action.
Click to expand...

Would you say the oversized gas port may be both contributing to the WK and MCR rifles both eating almost any ammo given to them, while at the same time causing the occasional less resilient piston rod to fail under the increased stress? And would you say having an adjustable gas block to dial back the force applied to the piston rod may increase piston life, at the compromise of not cycling some ammo types unless you dial the force back up? Or would a stronger, more resilient piston rod be of more use in this scenario?
 
Ustauk said:
Would you say the oversized gas port may be both contributing to the WK and MCR rifles both eating almost any ammo given to them, while at the same time causing the occasional less resilient piston rod to fail under the increased stress? And would you say having an adjustable gas block to dial back the force applied to the piston rod may increase piston life, at the compromise of not cycling some ammo types unless you dial the force back up? Or would a stronger, more resilient piston rod be of more use in this scenario?
Click to expand...

This is my question. I think or hope a adjustable gas block could slow it down/tune it to run my loads
 
Ustauk said:
Would you say the oversized gas port may be both contributing to the WK and MCR rifles both eating almost any ammo given to them, while at the same time causing the occasional less resilient piston rod to fail under the increased stress? And would you say having an adjustable gas block to dial back the force applied to the piston rod may increase piston life, at the compromise of not cycling some ammo types unless you dial the force back up? Or would a stronger, more resilient piston rod be of more use in this scenario?
Click to expand...

Jamie said:
This is my question. I think or hope a adjustable gas block could slow it down/tune it to run my loads
Click to expand...

An adjustable block would definitely allow tuning. My comment was just a correction on how the design works not a denial that the action might be more energetic than it needs to be.

I haven't seen any breakage so I can't really speculate as to the cause specifically of the reported piston/guide rod failures.
 
uAJollyRogering said:
That's not how a short stroke piston rifle works. Barrel length Vs where the gas block is located isn't really relevant as gas is vented off as soon as the piston moves the desired distance. So it's really only port diameter and the dimensions of the piston that are in play here.

In an ar15 direct impingement model, gas system length is relevant to barrel length as that directly determines how much gas is pushed back in to the action.
Click to expand...

I don't know where the gas vent is on an WK-180C, but I consider it unlikely that barrel length past the port is as irrelevant as you state. The White cut-off gas system of the M-14 was intended to operate as you describe, opinions seem to be mixed as to whether it was actually a good idea or not. Just about everything else I am familiar with (including the AR-15) doesn't vent until the action has started unlocking, by which point the bullet is gone from the barrel anyway.
 
BattleRife said:
I don't know where the gas vent is on an WK-180C, but I consider it unlikely that barrel length past the port is as irrelevant as you state. The White cut-off gas system of the M-14 was intended to operate as you describe, opinions seem to be mixed as to whether it was actually a good idea or not. Just about everything else I am familiar with (including the AR-15) doesn't vent until the action has started unlocking, by which point the bullet is gone from the barrel anyway.
Click to expand...

The vent is at the gas block, the WS-MCR/WK-180 vent gas all over your support hand, haha.
 
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