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!!

3Crows said:

I am having déjà vu:

Benjamin - Benjamin marauder .25 power tune

Anybody know how much fpe a marauder .25 will have with a stock .22 mrod valve modded taking return spring out and end cap and using a 18lb heavy hammer spring with stock ports and hammer adjustment and air flow screw maxed out I plan on using Benjamin 28 grain dome pellets would like to push...

www.airgunnation.com

Benjamin - Marauder .22 slugs

What's the most accurate slugs for a .22 marauder currently I'm power tuning mine taking the return spring and end Cap out the valve and maxing out the hammer and spring and vms screw

www.airgunnation.com

Do you have a .25 or a .22? The tuning for power is not going to be significantly different. Most people, at least for me, do not shoot slugs because the Marauder barrels are choked and just do not group with slugs, none I have found anyways. At any power level.

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Mine is a .22

I bought a .25 RPB barrel for my first generaton Prophet Performance. I did not slug the barrel, but did buy several brands and types of slugs and the .249 29.5 gr NSA slugs do load easier and so far have proven to be more accurate and consistant, so I think that kind of goes along with you measurements.

High pressure side has a check ball (very small) that keeps the air from entering plenum. The piston has a probe that pushes the check open via spring pressure. As plenum fills, pressure counteracts the spring. This pushes piston probe back away from check ball.

At this point, the oring can extrude and basically lock the piston in place. As pressure in the plenum drops (from shooting), the spring cannot push the piston back to open the check, creating the locked regulator.

Hth,
Dave

Kovas said:

You were right - that split o ring was causing it to turn slow! Took a risk and kept cranking- came off just fine!

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Yeah easy fix

Got it sorted with .452mm! Thanks all!

I have that brass adapter joewr. And the pistol looks like shambozzie's. Bandito.

And if ya just gotta go shoot somethin’ (and ya know ya do..) find your way up to Tulsa and try on some of them Okies for an AAFTA style match on July 13th AND one week later (July 20th) Oklahoma City will be hosting their XFT match.
Ya’all ain’t skerd are ya?

Archer10x said:

Lou, where do I find the Open Grove N50 schedule? I like to come out and shoot with you guys again.

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Here ya go.

It doesn't get much better ! A good gun in the right hands ! Well done especially using the different pellets

Rain said:

Is that the right order to connect the filters? Compressor-->desiccant filter-->coalescing filter-->dive bottle/gun cylinder.

I thought to put the coalescing filter first, to get more/ longer use out of the desiccant.

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I was not talking about the order of using filters, but of the choice of only two paths that would be certain to prevent condensation from occurring in reservoirs: either 1) a desiccant filter to adsorb the water vapor, or 2) a chiller to cool the air charge below ambient with a coalescing filter as part of the set up.

That said, using a coalescing filter before a desiccant it a very good idea, because it should help it last longer - of course the trade off is more "wasted" compressed air that evenetually gets vented rather than used. An even better idea would be to put that coalescing filter in a bucket of ice water to further cool and condense even more water vapor into liquid before the desiccant does its thing . . .

dgeesaman said:

@Hamdanali89 : You should not be posting a slug press in this thread about pellet swaging. 1) it's completely off-topic to the pellet die application and 2) you're obviously hawking equipment for some reason. Go start your own thread if you are compelled to spam the forum.

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He isn't hawking equipment. Been following precision slug press and this guy is just a customer giving his experience and feedback with the press. He posted on the wrong thread probably because he saw the name "Thor" and was just giving a comparison and feedback with the press. His English might be rough so cut him some slack