Got my 9mm kit yesterday! Pics sunday hopefully.
Got my 9mm kit yesterday. I’m extremely busy with stuff right now, so no pics yet. I’ll try to get it installed on Sunday, and give it a review. Thanks blodnob.
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He’s lying. It was a sweet robin, minding it’s own buisness. 30 feet up in a tree. Dnc was shooting straight up towards the school and neighborhoods. I heard 5 dogs screaming in pain as he missed every shot. One baby cried as it’s leg got hit. Windows breaking. It was horrible. I tried to tell him to stop, but nooooo, he likes killing babies.
Bad baby killer.
Yes voltar_1. I was shooting up into the air towards a field full of babies, puppies, and kittens. Thank you for your concern.
The birds were about 3 feet off the ground in some brush. Do you have something against me?
those birds on the ground?
you got the wrong gun for shooting birds out of trees.
I hope you weren’t “Lama-tized”! 😆 😆 😆
sounds like too big valve seat…or too weak hammer+spring combo
try add some more preload to the spring…..
you can also try adding a weaker spring in the valve instead…
850+ fps is pretty good though….those roundball will reach far out…and probably be very effective at most midsize game….
Good news everyone. I picked up the chronograph from mr-lama today. While I was over at his house, we went up into the woods to do some testing with the new ~68 grain Hornady 000 buckshot I bought. I had filled it up to 2800 psi. The first 5 or so shots were in the 600s. After about the 5th shot, it started to open up a bit. During the next 3 shots, it went from shooting at 650 to 700, then 800, then 886. Then it leveled off. I shot it at least two more times, and those were around 900fps (+- 10fps). Then we went hunting. I shot about 7 times at some birds, but never managed to hit one as the gun wasn’t sighted in. Then I went back and chronied it again. It was shooting at 930fps. After 3 or 4 more shots, it had dropped down to around 880 again. Ending pressure was 100bar :cry:, but I probably shot it 20+ times with the tophat all the way out. Anyway, I was hoping to get apprx 10 shots at 850fps, and it looks like I might be able to get that. Also, I did a few groups, and it looks fairly accurate. I achieved a ragged one hole group at about 25 yards.
yeah you probaly got some hardcasts….my 405 grain hardcasts shows all most no deformation from going throuhg a pc case…including the powersupply….just a little scratched when it come out the other side 😯
i really like the pure lead rounds i got…they deform like crazy !
but roundball is probably my favourite….900fps…and they deform nicely in water and clay i have shot it into
i had a .30 carbine barrel from LW….same ammo and valve…the LW made 120-140 fpe…..DAQ barrel 220 fpe….that much power was lost in just the barrel….worst part is you never know what your gonna get with firearms barrels…some will be very powerfull, some will not….
my valves can only move about 3.5mm
when you say super strong spring….i wonder how strong that is…on my rifle i needed to give the breech “wings” so i could put a thumb on both sides to be able to cock it !
cyg i think you got it right again as the old valve seemed to push the roundball out faster than the new big valve,i have got a lot of preload now,and the hammer spring makes it quite hard to cock,i may have a last test with the super spring i have here,but would not use it with that spring,only maybe test once as it aint no thumb breaker its more of an arm breaker,but may be enough to get another 50 or so fps,then i will back to the .25 for everyday use i think,i tried taking bit of of the slugs took them down to around .355 but it made no diference,these 158grainers are so hard that they dont even deform after they passed through over 4″ of pine,thanks for the tips cyg,
sounds like the roundball leaves the barrel too fast to really get up to speed….meaning the barrel is too short for that valve and or ammo….
the 158 stays in the long enough for the valve really to open up and get some energy behind it….755 fps with 158 grain is 200 fpe….
i have probably said it before but i will say it again…a round like that will still carry 150+ fpe at 200 yards….it will still blow through the skull of a human, or make it into the chest cavity even at 300yards….these slugs are very aerodymanic when compared to pellets that behaves like shuttlecock….and will quickly slow down….here the slugs just keeps going and going !…..ALLWAYS PRACTICE SAFE SHOOTING, KNOW YOUR BACKSTOP….
i had a slug that hit a knot in a 2×4 came out sideways and lodged 2″ into a table leg of my workbench….it was soft pinetree….the way american homes are built i think the can go right through the wall (thin siding…some plywood…insulation….plaster…livingroom !)
BTW so cool you guys are going into the bigbore stuff too….makes me wanna start up another project rifle
hey blodnob at one point the stem unscrewed from the delrin stopper,as i unsrewed the tophat,my asshole went cent 5 cent 10cent dollar,hahaha,after a few minites i realised you had designed it that way,and screwed it back in,at one point i was going to throw the bottle out of my window and shout grenade,hahaha,
I’ve got to borrow a chronograph before I can get any more figures. I hope to pick it up tomorrow.
hey cyg thanks for that advice,i will get a few of the 158g slugs in the chuck of my bench drill and do what you advised,i will leave a couple of ridges to run down the rifleing i think thats what you mean,then they wont be so tight,also i will put a heavier hammer spring in,with more preload,i was concerned that it may dump the air in the bottle,but i will refil back up to 200bar after a few shots,i may have to do that trigger mod,you advised,will it make the trigger heavier if we go back a more normal lighter hammer spring load?hey cyg thanks for all this info,you are our guru!!the mr olympia of the airforce world,
DNC have you had any more figures today,i will test again tomorow after i prepare some slugs
its nto all about the ID of the valve….
couple of things happens…with a bitg ID tehres a pressure drop in the stem…for max power the porting should be the same as bore….but for normal useabality….a 6-7mm might be better.
this correspond to what you found loftus..5mm valve doing allmost the same as 7.5mm valve…maybe a 6mm will be optimal.
what matters the most is the size of the delrin in the valve…the smaller the easier to knock open, and thus more power.
in my valve the travel is about .120-150″, and thumbbraking spring plus 150 gram hammer…and a shitload of preload
the return spring does not have much to say at high pressures as the pressure is the main force to be overcomed by the hammer…but as the pressure gets lower it helps conserve the air a bit….
the slugs your are shooting might very well be too tight…i have seen this on some .308 barrels….one barrel would do about 700 fps, and another would reach 900 fps, and a true airgun barrel from DAQ increased power by 10% compared to the best firearms barrel i have tried….
you can try this…if you have a lathe or just a powerdrill….chuck the slug…and then cut a little lead away from the OD of the slug(easy on lathe…can be done with a nice and a powerdrill too), but leaving 1 thin rim in each end….these will cut easy in the bore and will be the only friction points….in my .457 this takes the 405 grain from 650ish to 750ish quite a powergain
That’s alright. I’d still expect less than 715 with the old style valve.
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OK, I was lying. But it wasn’t as bad as he is making it sound. I only broke 3 windows, killed 3 dogs (wounded 1), and I didn’t shoot a baby, it was a toddler. There IS a difference.