I would not choose the k1 as it jams when you start shooting hard and fast. But I liked the semi auto. But also I never had a Valcan for long. But I would do the Valcan. Or a different semi auto. There fun.
The
only time any one of my Hubens has had a mis-fire was due to my mistake. (too low on reg setting or left the mag lock lever up)
If you set the regulator down too low then try to "dump a mag" it will not cycle properly, well duh, there is not enough air ....
I just sold my .25 LE 2021 Huben (sadly), and i Never once had a single issue with that gun, shooting pellets or slugs.
Reg pressure averaged 140-150, got 60 plus shots on a 300 bar fill
Accuracy was outstanding, i could "run the line" on the KYL target system out 50 yards shooting pellets, that includes whacking that pita 1/4" dangler..
I still own a Huben 2022 in.22 cal, again Never once had any jam or misfire issues unless self-inflicted i.e. too low ref pressure or left the mag lock lever in the up position.
Same deal on reg pressure 140, getting 60 plus shots on the 300 bar fill
Stupid accurate little gun using the FX 18.13gr pellets, sub moa out to 50 .
The Zan, Huben specific 28gr slugs are deadly at distance, made multiple kill shots at 106 yards, shot count goes down a tick with the slugs as power wheel settiing goes up a few clicks .
As for working on them, they are super easy to de gas , remove 2 allen bolts from the rear of the gun, remove the spring, install the cap and pull the trigger, it will de gas itself .
There are vids out there to assemble and dis-assemble them, and Kelly at Krazcool is outstanding ..
This post is clear up any mis conceptions about the Huben based on my personal experience, I maintain my guns, do Not run rot gut cheap ammo, and use clean, dry air.
The 2 i have, and have owned, have been nothing but fantastic guns.
As to Vulcan 3, never owned one, i have owned a Vulcan 2 and an earlier version, decent enough guns, shot well, but i cannot give legit info on the V3
