Huben Huben pistol ammo choice.

[Nomadic Pirate 66]

Here is an other spin off thread for the Huben pistol where members can share what ammo they have found works good,....... or bad in their hand cannon.

 

[Nomadic Pirate 66]

GTO Predator .25 16.54 grain 920 fps 40 yards. 12-shot group. I had one of my stocks on it & from the bench. The stock was only connected behind the receiver. If it was connected to the bottom of the grip, too, I think the height of the group would been less. At 1050, groups were bad; at 980, they were not really good; at 960, they were getting better. At 920, good enough for anything I intend to do. Got to order some more fresh out. There are no jams at all today using the factory gate.
View attachment 439354

Nice, how many shot do you get at that power level ?

 

[Nutcracker]

Nice, how many shot do you get at that power level ?

Don't know, had it tethered.

 

[Nomadic Pirate 66]

Don't know, had it tethered.

Ahhh Ok, those might be an option when I get my .25 shorty

 

[Nutcracker]

Ahhh Ok, those might be an option when I get my .25 shorty

Yeah, they should be good for that.

 

[Nomadic Pirate 66]

Keep hem at 900 fps should still give a bunch of shots even out da shorty.

 

[Azycray]

Basically recoil but because your grip prevents backward motion, the recoil is expressed as the muzzle moving upwards (rotation around the center of mass, which is below the bore). Heavier projectiles cause more recoil force and take more time to leave the barrel, both of which enhance the upward POI shift.

That makes perfect sense. I experienced something similar with my Extreme .457. It has a 4,500 psi tank and with helium shooting a 250 grain hollow point. unregulated, my first shot was 1365 fps if memory serves, it been a few years since I last used it. With the second shot it dropped to about 800 fps but at 100 yards the poi was about 3 inches higher. So since the projectile is the same weight, but slower, logic would dictate the recoil had more time to raise the barrel before exit, hence the higher poi. I always wondered why, this is a logical answer to the puzzle.

 

[Noob with alot questions]

model	Caliber/ammo	bar start-finish	air capicity (incl. plenum)	total shots done	avg fpe	fpe efficiency*
huben gk1	.25/ JSB Hades 26.54 grain	310-160	85cc	34	30.5	406
huben gk1	.25/ JSB Hades 26.54 grain	310-160	85cc	21	44.5	366,4
huben gk1	.25/ JSB Hades 26.54 grain	310-155	85cc	29	39.0	429,2
huben gk1	.25/ JSB Hades 26.54 grain	310-165	85cc	14	50.3	285,6
huben gk1	.25/ JSB Hades 26.54 grain	310-157	85cc	47	26.0	469,8
huben gk1	.25/ JSB Hades 26.54 grain	310-163	85cc	64	16.9	432
huben gk1	..25 / jsb 16.54 grain	310-155	85cc	31	34.8	409
huben gk1	..25 / jsb 16.54 grain	310-160	85cc	39	29.5	451
huben gk1	..25 / jsb 16.54 grain	315-160	85cc	18	41.4	282,8
huben gk1	.25 / jsb 34 gr	310-145	85cc	26	44.0	407
huben gk1	.25 / jsb 34 gr	310-150	85cc	33	38.0	461
huben gk1	.25 / jsb 34 gr	315-155	85cc	21	50.,2	387,5

* fpe efficiency = total fpe output for 100 bar on 50cc.

 

[Barri_40]

Buenas tardes.
He recibido los nuevos JSB Moster light y las primeras impresiones son muy buenas, solo pudo probar a 38 metros pero los resultados han sido muy buenos.
El grupo superior derecho es con JTS 18 más 3 tiros del Moster y los otros dos son con el nuevo Moster, el de abajo es espectacular.
Saludos.