Caliber 22 said:

First time I hear of it. Looked up what it is: https://en.wikipedia.org/wiki/Boyle's_law

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Just for fun I just put it in the search here and : https://www.airgunnation.com/search/982351/?q=Boyle's+law&o=relevance

John

Ca_Varminter said:

Does the power switch light up???
There is the Main Fuse in the switch unit...

You need a small flat screwdriver to pry open the fuse cover...

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Yeah thanks I didnt even know It was fused I guess I should have read the manual sooner .

Somewhere on this site, I believe. I went to their site. I see no link for parts:


I see nothing regarding o-ring sizes on their site or in the manual. No exploded diagram, no part # list either.

You can pretty much blueprint an Impact without ever spending a dime. Then once the gun is on point, shooting pellets and not constantly jacking with the gun, it can stay on point for a very long time. The last M3 I purchased, I did a one year test with it. My other two M3’s were sluggers right out the gate and were constantly under the knife until I got them dialed. My pellet M3 got a peek washer before I even shot it, proper lube, probe seating depth check, glued CF sleeve then proper reassembly. With all three of my M3’s, I found small issues with how they were set up. Not horrific issues that cause glaring problems, but they needed corrected.

I tuned that gun in one session for a certain hunting pellet and never touched it for around a year. The gun was stellar. Took it hunting all season many months after initial setup and cleaned house with it. After that test I lost my mind and the gun became a guinea pig for barrel testing. It’s now a pellet/slug shooter without having to touch anything other than my wheel. And still no hot rod parts.

NateChrony said:

It took me a year to get my bugs out - i cant emphasize enough how hard it is to do the required measurements with the required precision.
Using a generic operating system/libraries will typically lead to tears, low level programming is really required with a real in depth knowledge of the underlying hardware behaviour etc. There are a LOT of workarounds required

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Definitely a hard problem but I wouldn't dissuade anyone from pursing it. Especially someone with a better background in circuitry design than me. My troubles weren't in the software side. The micro controller stuff is my bread and butter. That part was working fine. The issues I was having were definitely at the hardware level because I was able to measure them with the osciliscope before they even made it to the micro controller.

At least the SLS COMPACT is now available from HUMA-AIR: https://huma-air.com/karma-sls-compact-semi-automatic-air-rifle/
i'm interested where that is going...

i ended up with the VULCAN 3 HP and so far i am happy with that, and the SLS is off my 'list'.

You got an exceptional deal in my opinion.

Fish like that, and that size, we have nicknamed " toilet seat " in Denmark

Generally the type of fish are just ( not at all creative ) named flat fish here.

That hole look much the same as many 5 shot holes i made at 30 M on Sunday.
I have now packed some H&N pellets to try out too next Monday when weather seem to become OK again.

Mind you i am also a bit over my pellet fab and so since i am at these low pressures i have also thrown in a tin of 13 gr Zan slugs to finish off the next session.

Yessssss! I got it fixed ! Kinda glad I was faced with the challenge.. Wow the Katran is easy to tune!

Finally got the video up. Be sure to check out my review of the Crosman Prospect. Best budget PCP of the year? You make the call. Definitely should be in the discussion with the results I got.

You bought a pellet rifle with a barrel designed to shoot pellets accurately. If you want a slug rifle it will need a new barrel without a choke. You might talk with Air Gun Revisions:


And then you will have a slug rifle that will likely not shoot pellets as accurately as it once did. Frankly, IMO, there is just not enough reservoir capacity to support the fpe needed to push heavy slugs at a good velocity and have any shot string. So then you need a bottle.

Match is done and it was fun. I REALLY need to work on stabilizing the rifle and building a position. The forend on the HM1000x is much wider and different than my RimX. Overall I shot an 80% on the match, with a clean run on the troop line with 60 seconds left, and a 9/10 on the roof top.

The ladder I shot a 7/12
Tank trap was 5/9....couldn't see the 1/4" target!!
The barrel tower shot a 5/10...moving killed me on this one.

If I remembered my hits correctly.....

Always fun, epically with 3 new shooters this month.

mountain air .20 LW sourced barrel, excellent 2 stage trigger

Deadly accurate with FTT’s

They are the cock roaches of rodentia. While they may be beneficial In their natural environs, such as high meadows, they are about as welcome in an alfalfa field as roaches are in your kitchen.

In their native areas, they exist in normal populations according to the carrying capacity of the land. When they migrate down into the fertile valleys and farmlands, their populations explode in the presence of the unnaturally dense food supplies created by agriculture. In other words, they INFEST the land, like rats in the sewers of our cities.

Also, just like roaches, they are cannibals. As an instinctive survival mechanism, they eat the carcasses of their dead. This is a trait shared by most infestuous species. It allows their gross population booms to linger after the high-density food supply has been cut off. This one reason why, again like roaches, they never quite seem to go away. They are a very stubborn problem and they deserve my culling skills.

I haven't tried the tensioner but you only have about 9 or 10 inches of unsupported 15 mm diameter barrel.. not going to flex much... I did try the clamp system that Scott came up with and could not see any accuracy change... he seemed to see a bit of improvement... I measured and documented the return to zero with and without the system and could see no difference but the measurement increment is so tiny, it's POSSIBLE that there is some. We are talking about the 0.0001" area and the setup was quite difficult with my particular set of tools to eliminate the setup error. In other words, the amount was so small, my measurements were suspect, even though they were near nothing.
Where I HAVE seen improvements is getting the waste air out of the chrono tube and tuning as well as possible to minimize waste air. That apparently doesn't have the same appeal as adding stuff. I'm sidetracking to the DW here but the Ghost can benefit from the tuning part, at least.

Just my $0.02...
Bob

Still holding pressure good, so all appears to be resolved I appreciate the help.

Hi Smok3y
If you know anybody with a 3d printer you can find one- easy to print on Cults3d.com

Best regards

McMullen said:

so the valve stem inside the the gun broke 2 times what did you do.

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I bought 5 new valve stems the first time, so I had spares.
With the Invader you can unscrew the aircilinder wich also contains the valve so you can easily repair it.
Most Hatsans are quit easy to fix.

Full disclosure - i make chronographs, and I have independent certification from the National Measurement Institute to claim that mine "is accurate".
Vid here of me banging on:
There's no way of knowing, unless the manufacturer has a process in place to calibrate the chronograph against a known/traceable chronograph - which is what I do. I have a set of master chronographs which were lab verified (above), and then each & every chronograph is mounted directly to the master chronographs (spacing is ~60mm apart). Even the way its mounted is CRITICAL to achieving reliable & accurate results.
(I could be wrong) but the only two I know of with some form of certification/calibration is the SKAN & NateChrony.

You also need to trust the manufacturer - do they actually do the calibration process? It adds a good amount of time - aka $$$ to the cost of manufacturing. Do they do it - or just say they do (i.e. marketing).

GeneT is bang on the money.
I spoke with a guy here that makes ballistic materials - he's got a $100k chronograph he gets calibrated yearly, really interesting process. Even then - there's stuff that wasnt accounted for in the manufacturers process!

I wouldnt worry much - ask the manufacturer, get a quality device.
Technically its not hard to achieve accuracy - its costly to achieve accuracy.

Another thread here:

TenorTim said:

The gauge on my pcp hand pump had a liquid in it when I bought it. I just noticed it no longer does and the area around the gauge is oily. Is it possible for the liquid to pass into the rifle when I'm pumping air into it? I'm concerned the liquid might have gotten into the rifle. So far the rifle seems to be operating fine. Thoughts?

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Replace the leakers!!