The karma eq .ok who's got 1,shot 1 or knows some1 with 1 . Anyone else think karma hit a home run with this 1 .under a thousand bucks 1000 fps 30 cal? Anyone picking 1 up ?I'm saving rt now for mine.are u doing the same?
Karma Karma eq
- Thread starter mikey fingers
- Start date
Tested a lighter Hammer Spring tonight...
Left is the original, right is same dia (5/8" ID) and length (2.75") wire diameter is 0.055". The original is 0.080".
Unfortunately, the new one is also stainless steel, which adds another layer of softness.
I installed the new one and it certainly proved a point...velocity dropped out the bottom, not registering on my chrono with it at its lowest setting. Cranking about halfway up the range finally got me on the chrono @ 450fps (33g pellet). At the highest tension, it topped out at 550fps.
This was all performed with a reg setting of 1900psi, which, with the original spring (at min), ran 870fps with the same pellet.
So...back to hunting a spring that is somewhere in between. If I can match the size, maybe a wire dia ~0.07" would get it done...and not stainless.
Of course, I can install a second spring inside the new one...back to the McMaster-Carr website!
Left is the original, right is same dia (5/8" ID) and length (2.75") wire diameter is 0.055". The original is 0.080".
Unfortunately, the new one is also stainless steel, which adds another layer of softness.
I installed the new one and it certainly proved a point...velocity dropped out the bottom, not registering on my chrono with it at its lowest setting. Cranking about halfway up the range finally got me on the chrono @ 450fps (33g pellet). At the highest tension, it topped out at 550fps.
This was all performed with a reg setting of 1900psi, which, with the original spring (at min), ran 870fps with the same pellet.
So...back to hunting a spring that is somewhere in between. If I can match the size, maybe a wire dia ~0.07" would get it done...and not stainless.
Of course, I can install a second spring inside the new one...back to the McMaster-Carr website!
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Quick report guys… I got my .30 cal today. There is definitely some regulator break-in needed. Plenum is creeping from 2100-2200fps. Not a big deal so far. If it doesn’t settle after a bit I’ll break it down and relube it with Reg Butter. With the transfer port on max it’s shooting the fx 50.2gr pellets at 899-905fps. The transfer port adjuster does make a huge difference. Turning it down half way dropped the fps by 100.
I’m really impressed so far. It is heavy but it shoulders really well. Lots and lots of power. I haven’t touched a dang thing and it’s making 90fpe. Considering the website says 102fpe for “max power” I think it’s safe to say they are under promising.
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Is this the same area where you had the valve seat issue? Does this look like it could be tighten up?
I can fit my fingernail in the gap.
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That's the plenum-to-valve body connection. There's an O-ring in there, so if it isn't leaking, there's no immediate issue.
The other side of the holey part (the valve body) is where my gap was. That is how you coarse-adjust power...controls how far the poppet valve stem sticks out.
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Ohhh okay cool. I didn’t think it was an issue but I wanted to make sure…
The reg is funny. I got the 45gr slugs in and basically the every I nudged the reg up to like 2500psi it would drop down little by little with each shot. Then I’d nudge it back up and it would drop down but not to the same level. Long story short it took awhile to settle but now it’s at 2450psi… shooting 45gr franco slugs at 960fps.
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Very interesting, but that was the point that I think you were trying to make and that I refer the yes have a little bit too much spraying from the factory, but of course with use it’ll settle down a little bit and then we’ll have more adjustment. Maybe you should try again with a little bit lower pressure on the Reg. Maybe 1600 psi would do it.
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My point is to find a spring that is more optimal at all settings. I've tested the original from reg settings of 1100 - 3000...but that was before I figured out the valve body problem.
Yes, it is possible that the weaker spring could have been balanced at lower reg settings. I could have dropped down to lighter pellets too. It was just too weak and I didn’t waste time trying to find a tune for it.
I haven't found a commercially available spring or combination of springs that look like they'll work.
So, I'm going back to testing valve-body positions v reg settings and fine tuning with the xfer port.
I'm not giving up on finding the right spring...I just have too many projects at the moment.
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Nothing. They come lubed and I’ve never had to fool with them. When I put them in a tin I’ll put a little bit of Reg Butter on the foam padding inside… like the tip of a fingernails worth is all.
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Okay,
So I’m not sure what the regulator’s deal is haha. I’m wondering if it just needs breaking in or if it just has a really slow recharge rate but it does wanna creep down. This morning I was trying to call some coyotes and when it became obvious the stand was a bust I fired at a rock across the way from me. It was nice and flat so I could see the impacts and this freaking gun stacked them. Well stacked 2 and the other one I pulled a little but this was at 71y according to the range finder so I’m definitely not mad at it haha.
I’m just gonna keep shooting the thing and see if it settles down. I got another 2 jackrabbits this morning and this thing just laid them out. Full pass through at 40y with the Franco slugs which is wild to me haha. I shoot Francos exclusively out of my Barra 250z pushing 70fpe and the expansion is such that even at 25y I rarely pass through if it’s a body shot. I know I’m getting similar expansion with the 45s because when they hit it sounds like a firecracker going off but slightly deeper pitched haha.
Either way I’m becoming more pleased with my purchase the more I shoot it. I’ve barely fiddled with it since I don’t have my preferred optic on it yet but straight out the box it’s practically a rail gun. I’m gonna try some boattails out of it since Franco doesn’t make those but I’m also gonna order some 55gr or 60gr Franco’s. They’re just my preferred slugs if possible.
Anyone got any recommendations for some boattails? Hollowpoint is a requirement since I don’t shoot paper. I already know about griffin and have some on order but tbh they don’t seem to expand well from what I’ve seen of them. Kinda torn on what to do. Lot of guys shoot big heavy slugs in .30 and get great fpe numbers. I usually will go lighter so that I can shoot them real fast. I like the flatness and expansion that way…But I get the feeling that the 1:16 twist can stabilize some fatties so I might have to go down that route. By the beginning of September this thing will be setup to shoot one thing only and that’s to drop coyotes.
So I’m not sure what the regulator’s deal is haha. I’m wondering if it just needs breaking in or if it just has a really slow recharge rate but it does wanna creep down. This morning I was trying to call some coyotes and when it became obvious the stand was a bust I fired at a rock across the way from me. It was nice and flat so I could see the impacts and this freaking gun stacked them. Well stacked 2 and the other one I pulled a little but this was at 71y according to the range finder so I’m definitely not mad at it haha.
I’m just gonna keep shooting the thing and see if it settles down. I got another 2 jackrabbits this morning and this thing just laid them out. Full pass through at 40y with the Franco slugs which is wild to me haha. I shoot Francos exclusively out of my Barra 250z pushing 70fpe and the expansion is such that even at 25y I rarely pass through if it’s a body shot. I know I’m getting similar expansion with the 45s because when they hit it sounds like a firecracker going off but slightly deeper pitched haha.
Either way I’m becoming more pleased with my purchase the more I shoot it. I’ve barely fiddled with it since I don’t have my preferred optic on it yet but straight out the box it’s practically a rail gun. I’m gonna try some boattails out of it since Franco doesn’t make those but I’m also gonna order some 55gr or 60gr Franco’s. They’re just my preferred slugs if possible.
Anyone got any recommendations for some boattails? Hollowpoint is a requirement since I don’t shoot paper. I already know about griffin and have some on order but tbh they don’t seem to expand well from what I’ve seen of them. Kinda torn on what to do. Lot of guys shoot big heavy slugs in .30 and get great fpe numbers. I usually will go lighter so that I can shoot them real fast. I like the flatness and expansion that way…But I get the feeling that the 1:16 twist can stabilize some fatties so I might have to go down that route. By the beginning of September this thing will be setup to shoot one thing only and that’s to drop coyotes.
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My reg was dry. It also had a bit of rust on the pressure bar. Pulled it, cleaned, polished the pressure bar, reassembled with silicone grease.
(I have a tin of "reg butter" but it looks exactly like the silicone, food-grade "superlube" grease I bought at Harbor Freight. I'm gonna give it a try)
That cured the downward creep for me.
They all have a recovery rate. I'm learning to take a breath or two between shots...
(I have a tin of "reg butter" but it looks exactly like the silicone, food-grade "superlube" grease I bought at Harbor Freight. I'm gonna give it a try)
That cured the downward creep for me.
They all have a recovery rate. I'm learning to take a breath or two between shots...
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Reg butter is silicone lube. The difference is that he has a blend of various ones mixed together. I think the point is to have various viscosities to ensure performance over a range of temps.
What do I have to do to get to reg? I’m guessing you have to take the bottle off to get to it?
And recovery rate is very normal. The faster the better over course. Mostly I don’t want to fight the reg to know what my tune is.
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I degas, remove the bottle, remove the barrel shroud and aft shroud mount. The reg block has to be rotated ~30° (guessing) to allow the reg to clear the barrel. It may be easier to remove the barrel...it is that close to not clearing.
You do have to remove the barrel and lift the picatinny rail (don't fully unscrew the screws or remove it) to get the reg block, plenum and valve body out. The picatinny rail holds the two action halves together...and in alignment. It can be fiddly to reinstall if taken totally off.
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Ooof doesn’t sound terrible but I’m still not keen on it haha.I degas, remove the bottle, remove the barrel shroud and aft shroud mount. The reg block has to be rotated ~30° (guessing) to allow the reg to clear the barrel. It may be easier to remove the barrel...it is that close to not clearing.
You do have to remove the barrel and lift the picatinny rail (don't fully unscrew the screws or remove it) to get the reg block, plenum and valve body out. The picatinny rail holds the two action halves together...and in alignment. It can be fiddly to reinstall if taken totally off.
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Do I have to that the plenum and valve body out too? Or can I just bust the reg out?I degas, remove the bottle, remove the barrel shroud and aft shroud mount. The reg block has to be rotated ~30° (guessing) to allow the reg to clear the barrel. It may be easier to remove the barrel...it is that close to not clearing.
You do have to remove the barrel and lift the picatinny rail (don't fully unscrew the screws or remove it) to get the reg block, plenum and valve body out. The picatinny rail holds the two action halves together...and in alignment. It can be fiddly to reinstall if taken totally off.
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No, the reg can come out without affecting the plenum. However, the block that holds the reg is part of the plenum and valve body assembly. It has to be rotated to allow the reg to be pushed out...and it only rotates until it contacts the barrel. My reg barely clears.
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