Huben huma reg in huben k1 .25

17 bar seems awful fully slow. I will keep it at least 10% and then try that.

1handwill.gc said:

17 bar seems awful fully slow. I will keep it at least 10% and then try that.

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He meant 170b

daddypaddy said:

any huben k1 .25 owners know what huma reg setting the k1 responds well to as far as recharge rate and consistent velocity when shooting 33gr preferably at 920-940fps?

i currently have the reg set for 17bar and want to know if a lower setting can give me tighter velocity and faster recharge rate.

thanks

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Not necessarily, it will increase your shot count though just any other gun would when you tune it down. The valve dumps as much air as it needs given reg, hammer, and weight of projectile. What I mean is that the gun won't simply let you shoot a lighter pellet at lighting speeds just because it will shoot a 33gr at 1000fps. It will use the air necessary.

Try 145-150b

With 170b I was able to.shoot 38.5gr at 1000fps

Unless perhaps a HuMa is PURPOSE built for that use .... as a typical HuMa is a precision regulator with a SLOW refresh rate of 2-5 seconds.
The HUBEN semi-auto requires near instantaneous refresh speed.

Don't see it as a good match based on what I know of HuMa regulators

Motorhead said:

Unless perhaps a HuMa is PURPOSE built for that use .... as a typical HuMa is a precision regulator with a SLOW refresh rate of 2-5 seconds.
The HUBEN semi-auto requires near instantaneous refresh speed.

Don't see it as a good match based on what I know of HuMa regulators

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I’m with you in this opinion, Estado humor regulator wouldn’t work. You would actually need to increase the pressure exponentially.

Generally, @Motorhead would be right on this, but I bought the Huma reg for mine and it refreshes plenty fast enough for good semi-auto shooting - I practice double and triple taps sometimes with mine and there is no issue or loss of speed. Note that mine is a .22 shooting at about 34 FPE, so it might not be enough for a .25 at 70 FPE.

One thing that Huma does on the regulator for the Huben (at least on the reg they sent me) is they leave out any restriction screw to give a faster refresh rate. It works great, but it does lead to the delrin disc wearing out (leading to some creeping) a bit faster than on my other slower refreshing Huma regulated guns.

I am very happy with it, and it solved the issue I was having - my K1 shoots great at lower pressures down around 100 bar, but the factory regulator is not as stable as the Huma regulator down there. I get less ES with the Huma regulator than I do with the factory one, but I had to give up the external adjustability to get it.

If you order one, I'd definitely order some spare discs for it as you will likely need them eventually. You can turn the disc over and use the other side, but eventually you will probably want to replace the disc.

I wish I could get some of those discs made out of PEEK . . . .

When I had my THOMAS FT rifle & had painstakingly made a peek Huma regulator seat disk. What a PITA that was as it required making it from PEEK rod, parting off some thin disks then lapping them on a surface plate using ever decreasing grit wet/dry paper to remove all tooling marks. All done it did work, but as stated what a PITA !!!

Yea leave out the restriction screw can see a faster recovery for sure !! ... tho as stated seal disk life will be a LOT shorter