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.
Nice, how many shot do you get at that power level ?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
Yeah, they should be good for that.Ahhh Ok, those might be an option when I get my .25 shorty
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.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.
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 | ||