Can you get a Vulcan .25 to 60 FPE ?
That is with just home adjustments of the Regulator and HammerSpring, no sending to a tuner for extensive work, just simple home brewing 😀 😀 😀
Thanks
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My Vulcan stock, no adjustments to the Regulator or HammerSpring, shoots H&H FTT 19 grain at 985 fps, but at a 100 yard it is only 14.9 fpe.
JSB 25.4gr 907 fps 100 yards 22.4 fpe
H&N 31gr 830 fps 100 yards 26.9 fpe
I should be receiving 4 tins of the JSB 34gr this week. I would guess they will only shoot at about 785 fps
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not by upping the power but by shooting a lighter pellet.
think about it.
60 FPE with the 27.8gr Benjamin pellet is 985 fps
………………..31gr Baracuda is 933 fps
………………..34gr JSB is 891 fps
some people have different applications for their airguns and want to get certain pellets to hit a certain speed, not have to use other pellets that aren’t conducive for their needs.
the Benjamin at 900 fps is 50 FPE, the Baracuda at 900 fps is 55 FPE…….I’m assuming that the Vulcan is perfectly capable of those numbers,…am I right ?
you guys must change your way of thinking. get the lightest of .25 and it will fly flatter.
not by upping the power but by shooting a lighter pellet. try h&N ftt 19 grain or even pylarms 18grain.
think about it.
I don’t need 60 fpe but I would like to be able to shoot the 34 in the mid 800.
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you probably can make it 60 fpe but the speed might affect accuracy.
Birdman, that is the unknown. I cannot answer that question because I do not have the ability to test my theory. I will soon enough…
Keyser , OK you say you want a .25 with more speed for a 34 gr. pellet and there is nothing yet on the market for the speed you are looking
to get . What I would mostly want to know is with the speed you want to get , what is the max effective killing distance you are trying to
get from the speed you want ? Is it possible ?
FROM : THE BIRDMAN
Currently there is not a bullpup that will shoot the 34 grain JSB .25s at the speed I would like them to fly. I want to build a 65 foot pound .25 cal. Ernest is working on one. For now I don’t think he’s ready to reveal the gun.
The plenum volume is not enough in most bullpup .25 regulators to accommodate the speed I want (920-930). I am working on it however.
Keyser, what velocity and shot count are you getting shooting the 34gr JSB’s and how does that compare to the 25.4gr JSB’s. I’m shooting the 25.4gr JSB at 907fps and the 31gr Barracudas at 830fps and getting about 40 shots before it drops off the regulator. I wouldn’t mind being able to shoot the 34gr at 830fps if they would give me good group and a shot count 25+. I figured that would give me 40ftlb at 50 yards and 30ftlb at 100 yards.
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Looks like I’ll be buying one now ! I bought the .25 bull pup when they first came out a few years ago. Loved the gun, it was just to dam big for a pup. That rifle always seemed like the ideal .25 carbine
According to a couple dealers I spoke with it’s AoA’s doing. What a major Kalibrgun dealer told me was AoA bought Kalibrgun rifles then sold them for cost or at a slight loss in order to crush the market and hurt the other kalibrgun dealers. The Kalibrgun rifle sales never recovered, Kalibrgun learned a valuable lesson and the rifle is dead.
Really ? …they going strictly BullPup ?
What a shame.
In my opinion vulcan .25 is for people who wants decent power with reasonable shot count and cricket .25 is better for more shots with possibility achieve more power but is little bit longer… 
I don’t know about the carbine. I do know however the carbine is being discontinued.
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that will be very loopy at 100 that is not a problem?