Anybody test this out yet
- Thread starter heavyw8
- Start date
Assuming you already got everything already MAXED OUT and regulator set to 170 BAR what speed is it pushing the 50gr slugs right now as-is? That would be incredible if that spring alone can achieve that!
Upvote 0
For some reason anything past 140 bar I get a decrease in velosity...hammer spring adjuster screw right b/4 bine...valve adjuster 4th line ....huma dual transfer port and pellet probe ...i thought that was just max velosity for 30 cal almost stock ....i can get the nsa 47.3 gr around 940 max then I tune down to the knee around 930 ....its accurate but major drop out past 100 yards .... would like to get them hot 
around 960 then tune down a little to 950 .....
around 960 then tune down a little to 950 .....Upvote 0
Yo u must work grave yard shift.....
....but yeah thats 20 fps for the 47's then u got 49,50, 54, 61, 65 and as you go up in weight that 930 drastically decrease to like 700 max
....but yeah thats 20 fps for the 47's then u got 49,50, 54, 61, 65 and as you go up in weight that 930 drastically decrease to like 700 max Upvote 0
You NEED the POWER PLENUM since you go up to 65 grain and you think that's gonna do 700 fps.
Upvote 0
Yeah ....brand new impact I have a power plenum
When i said that I didn't wanna add external plenum I was talking about like the ugly manometer one
Its cool I got a 22 cal barrel kit coming soon see i shoot slugs only and I like to get them close as possible to 1000 fps ....gotta texan , about to pull the trigger on the Huben K1 if I knew the Impact stock would struggle to produce these numbers for .30 I would have gotten a .22 from the rip !
When i said that I didn't wanna add external plenum I was talking about like the ugly manometer one
Its cool I got a 22 cal barrel kit coming soon see i shoot slugs only and I like to get them close as possible to 1000 fps ....gotta texan , about to pull the trigger on the Huben K1 if I knew the Impact stock would struggle to produce these numbers for .30 I would have gotten a .22 from the rip !
Upvote 0
WELL THEN! Contact HUMA and have them explain the power gains that they have documented as finding of fact vs the factory (your) spring since theres a good possibility no one here who's tried that one yet.
Upvote 0
Hi heavyw8,
If you need need help from a technician feel free to call in or email our customer service at [email protected] and we can have a technician call you ASAP.
regards,
FX Airguns USA
If you need need help from a technician feel free to call in or email our customer service at [email protected] and we can have a technician call you ASAP.
regards,
FX Airguns USA
Upvote 0
Its not that deep to where I gotta talk to a tech. was just asking if anybody had experience with the new Huma spring to save me some time it was only six dollars and if I don't like it I could just throw the old 
spring back in .......i ordered it it came today so now I got the MK1 spring which is the longest Huma spring wich is longer than the MK2 spring and I got of corse the Mk2 spring which came with my gun ill test them both this weekend and post results......I guess this would for folk who have .30 cal. And wanna send "slugs"a little faster without major modifications.......
Upvote 0
Copy that ....I got you probably on the weekend....spoke to Glem too he told me had to add heavier hammer weight, bigger value seat, and bigger plenum to achieve those numbers
Upvote 0
I assumed you didn't have the power plenum model, so you already have a hammer weight and same sized valve seat as me. So maybe your valve return spring is sapping some power. Maybe try a weaker spring there? Thats strange its not getting any more power above 140bar.
Upvote 0
Copy that the longest spring I have feels the weakest ill start with that ..ok and weaker spring in the front ...where an I get a weaker V/R spring
Upvote 0