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JiminPGH
(@jiminpgh)
Joined: 1 year ago
Posts: 241
July 25, 2018 19:50  

OK, maybe I have a problem.  I bought a .177 Plinkster CO2 and fell in love.  Then I bought a .177 Dragonfly pumper, and the love grew.  I just thinned the credit card on a Diana Chaser CO2 rifle kit, also .177.  I was kind of intrigued by the pistol/rifle swap-ability.  These guns are amazingly well made for the price point, and they have the same easy-to-work-on modular design as the Crosman 22xx series.  Here I go again.  Now I will have a left-side breach to play with.


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JiminPGH
(@jiminpgh)
Joined: 1 year ago
Posts: 241
July 27, 2018 18:35  

So, I received my Diana Chaser today, and I'm impressed.  Actually, buying the Master Blaster package from Mrodair is a better value, but they were out, and I HAD to have it, if you know what I mean.  All these guns come from the same mfgr, and out of the box, the Diana branded gun seems a little tighter and smoother, so there may be something to that.

The packaging is remarkable.  The first thing I wanted to know was, is the moderator interchangeable between barrels?  Well, not intentionally.  It's pretty well glued on to the rifle barrel.  But some leather on the bench vice jaws and a rubber strap pipe wrench broke it free.  A little acetone on a q-tip cleaned up the threads.  Even with the short pistol barrel, this thing is stapler quiet.

There are some nice details, like the little knurled knob on the gas cap, that unscrews to provide a tightening handle.  And a small window in the gas tube, right in front of the main cart seal, which makes for easy de-gassing.

I'm really impressed with the feel and quality of the plastic grips and stock.  The pistol grip is full ambi, but the little tail makes it feel like a target pistol.  When I say plastic, think HW R1AW stock, not Crosman or Daisy.  This is solid quality synthetic.  And the shoulder stock anchorage is rock solid and wobble free, with a metal-on-metal attachment screw.

I've only taken a few test shots so far, and I've already ordered Steve in NC's aftermarket trigger and FFHDD, because I know how much they improved my Plinkster.  Although, based on just a few test shots, the trigger is much better out of the box than my Plinkster or Dragonfly.

Mrodair, if you're listening, you should make factory parts available the way Crosman does.  This family of guns looks and feels like the 21st century version of the 22xx platform, with equal potential for hotrodding, if parts are available.

chaser5stock 1
chaser4butt 1
chaser3gas 1
chaser2muzzle 1
chaser1box 1


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JiminPGH
(@jiminpgh)
Joined: 1 year ago
Posts: 241
July 28, 2018 15:58  

So, after a day of fiddling around, I've settled on a configuration I really like.  Shoulder stock, pistol barrel with moderator, and rifle barrel band.  I don't really need the barrel band, but it has a weaver accessory rail on the underside, so I can mount my 1" dia superbright LED flashlight in a single scope ring.  I put a 4x32 compact crossbow scope on it, and it makes for one tidy, silent little shooter.  Already dispatched one red squirrel that acquired a taste for cayenne pepper-treated sunflower seeds in the bird feeder.  I'll put up some pictures tomorrow.

Oh, the rifle barrel is now on my Plinkster, so I can move the moderator back and forth.  It is now also stapler-quiet.  I sure wish you could buy parts for these guns.  The possibilities are endless.


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marflow
(@marflow)
Joined: 1 year ago
Posts: 566
July 30, 2018 23:25  

I've been staring at these for awhile, so thank you for the opinion, what caliber did you get

Mike


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JiminPGH
(@jiminpgh)
Joined: 1 year ago
Posts: 241
July 31, 2018 06:43  
Posted by: marflow

I've been staring at these for awhile, so thank you for the opinion, what caliber did you get

Years ago, I decided to go all .177, so that's what I got.  On Sunday I "got into" it a little, having received my Steve in NC aftermarket trigger and FFHDD.  Turns out these things already have a very nice two-stage trigger with two pivot-point setscrews.  1st stage takeup is adjustable thru a slot in the trigger guard.  Adjustment of the second stage (sear engagement) requires removal of the trigger guard.  Installation of the FFHDD yielded about a 30% increase in shot count, but be aware it requires some relief work on the inletting at the rear of the action, since the factory end plug sits flush, but the aftermarket end plug sits a little proud.  No big deal really, and well worth the added gas mileage.


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Hector J Medina G
(@hector-j-medina-g)
Member of Trade
Joined: 1 year ago
Posts: 224
July 31, 2018 09:48  

I'm glad you like the improved two stage trigger.

As time rolls on it will also come in the Stormrider.

The Outlaw is getting an improved "Match" style trigger with adjustable blade.

Be patient and the wished for parts will become available.

😉

Thanks for your work on these little guns and thanks for your time to write them up.

Keep well and shoot straight!

 

HM


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Razor
(@razor)
Joined: 1 year ago
Posts: 64
July 31, 2018 12:45  

While we're on the subject...Anyone know where one could get their hands on one of the Snowpeak model M11A this side of the Atlantic?

Looks like a pretty well designed arrow gun.

http://www.artemis-airgun.com/#details/series/showproduct.php?lang=en&id=98

 

1523965205

 

 


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JiminPGH
(@jiminpgh)
Joined: 1 year ago
Posts: 241
August 5, 2018 16:57  

Chaser01 1

So this is the handiest configuration.  Really quiet, and really quick to shoulder.  I can keep it by the workshop door with a full cart and a full magazine.  If an errant squirrel hits the feeder, I can just grab, cock, and shoot.  The little 1" maglite kicks out 200 lumens, and it has a strobe function, which really confuses the squirrels, even in daylight.


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JiminPGH
(@jiminpgh)
Joined: 1 year ago
Posts: 241
August 5, 2018 18:58  
Posted by: Hector J Medina G

I'm glad you like the improved two stage trigger.

As time rolls on it will also come in the Stormrider.

The Outlaw is getting an improved "Match" style trigger with adjustable blade.

Be patient and the wished for parts will become available.

😉

Thanks for your work on these little guns and thanks for your time to write them up.

Keep well and shoot straight!

 

HM

Hector, what, if I may ask, is your connection to these wonderful little guns?  I've been a fan of your posts over the years, and have always found your insights valuable. 

If parts do become available, I'd love to get my hands on another  threaded moderator.  And if your people are listening, it would be great to have access to a Dragonfly-length barrel with a threaded end to accept the Chaser moderator.

Like I've said before, these guns are an amazing value, and they have the potential  to become the 21st century version of the Crosman 22XX platform, if parts and pieces become available.


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Hector J Medina G
(@hector-j-medina-g)
Member of Trade
Joined: 1 year ago
Posts: 224
August 5, 2018 21:56  

Jim

As of IWA 2018 I am an external consultant for Mayer & Grammelspacher, owner of the DIANA brand.

I published it here

https://www.ctcustomairguns.com/hectors-airgun-blog/not-another-iwa-report  

Large companies, especially European ones need time to change, but change is coming in a way that will redefine the airgunning world.

Snow Peak Airguns has become a very valued Ally for DIANA. And DIANA is putting quite some effort into SPA. As all alliances should work, benefitting both sides.

Parts will be available, though we will follow strictly the law. In this sense, moderators will always come out of the factory as an integral and not easily removable part of a rifle or carbine.

If/when the law changes (there is a proposal for this being analyzed in Congress), we may change the policy, but for the time being moderators will be "integral".

Part of the challenge is that all parts and accessories should be retrofittable to earlier versions. But we're getting there.

The Dragonfly, however, is not and possibly will not be a DIANA airgun, it may still benefit from some of those developments, but we have our sights set on a completely different, and better, design. I believe that the most interest aspect of the Dragonfly has not been tackled, so, as CCA we may do something there. Whether the new pump-up concept will come to fruition is early to say. But we're working on a number of initiatives that should keep everyone happy for some time.

😉

Again, thanks for your kind words about these little guns, and for your work with them.

Thank you also for your kind words about my blog.

Keep well and shoot straight!

 

 

 

HM

 


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B3ntong
(@b3ntong)
Joined: 1 year ago
Posts: 21
August 6, 2018 15:22  

Is the barrel thread 1/2 20?


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Bob in WV
(@bob-in-wv)
Joined: 1 year ago
Posts: 112
August 6, 2018 17:10  

That configuration looks good Jim.  You are making me want one.  It was good seeing you at the Ohio show too.  You also made a kid happy with the green gun.

Bob in WV


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JiminPGH
(@jiminpgh)
Joined: 1 year ago
Posts: 241
August 11, 2018 09:53  
Posted by: B3ntong

Is the barrel thread 1/2 20?

A trip to Home Depot with the barrel cap revealed it is threaded Metric fine pitch M10-1.00.  A home-made LDC for the Plinkster is under construction.


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James Perotti
(@jpsaxnc)
Joined: 1 year ago
Posts: 73
August 11, 2018 10:25  

Hi Jim, A trick I used on the cp-1 barrel was to make a thin walled threaded brass adapter, like a heli coil, but a slip fit over the end of the barrel, that I  soldered in place. The end of the stock barrel was to small a diameter to thread for an ldc. I used a 7/16 thread.


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JiminPGH
(@jiminpgh)
Joined: 1 year ago
Posts: 241
August 12, 2018 15:23  

The Plinkster with the Chaser moderated barrel is THE perfect backyard plinker.  I spent a wonderful afternoon shooting at spoon spinners from about 20 yds, and the impact on the spoon was louder than the report from the gun.  They have done a great job of taming the bark from this gun.  The factory moderator is both elegant and efficient.  I assume the addition of the FFHDD also helps with reduction in report.  I live in fairly dense suburbs, so I am thrilled to have a gun I can shoot in my yard without calling attention.


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JiminPGH
(@jiminpgh)
Joined: 1 year ago
Posts: 241
September 15, 2018 13:43  

spguns

My current obsession, top to bottom, in order of acquisition.  .177 Mrodair Plinkster.  Sun Optics Shorty Forty in BKL rings.  Steve-in-NC two-stage trigger and FFHDD.  Currently wearing the Chaser rifle barrel, which lets me switch the moderator from the Chaser.  .177 Dragonfly.  Williams peep and Steve-in-NC two-stage trigger.  Replaced piston buffer.  (See below.)  .177 Diana Chaser rifle kit.  1.5X18 Poly Tech scope in Weaver double-strap rings.  Pistol barrel with rifle barrel moderator.  Steve-in-NC FFHDD.  Factory two-stage trigger with slightly weaker trigger spring.  200 lumen maglite.  .22 Chaser pistol.  Box stock (so far.)

 

These guns represent a remarkable value, and are all really good out of the box.  But a few simple mods can make them really great guns.  First and foremost, they all need a thorough barrel cleaning.  Second, they can all benefit from a slight dressing of the leade, I mean very slight.  A few strokes with a hand-held round needle file, just to break the edge.  No need for aggressive dremel work.  (Doing that will likely compromise the o-ring seal at the leade end of the barrel.)  Third, they seem to respond pretty well to the round-head brass screw crown dressing.  All of these mods are made simple by the ease with which you can remove the barrel from the action without disassembling the gun. 

 

The "early" guns like the Plinkster and Dragonfly benefit greatly from Steve's trigger.  The Chasers come from the factory with a really nice adjustable two-stage unit.  The CO2 guns shoot really nicely out of the box, but can see a roughly 33% increase in gas mileage with the FFHDD.

 

The Dragonfly benefits tremendously from a simple, but slightly more advanced mod.  There is a rubber buffer behind the pump piston head.  Replacing it with a non-compressible nylon spacer yielded the following results:

3 pumps before - 640, after - 675

4 pumps before - 700, after - 740

5 pumps before - 740, after - 785

6 pumps before - 770, after - 820

7 pumps before - 790, after - 850

8 pumps before - 810, after - 870

 

I do hope parts become available for these guns, because the way they are built could make them the 21st century version of the Crosman 22xx platform.  They are easy to take apart and put back together again.  For example, I haven't even experimented with valves or transfer ports yet.  Chaser barrel ends are threaded with metric fine pitch M10-1.00.  The moderator is glued to the rifle barrel, but I was able to break mine free by putting the barrel in a bench vice with leather on the jaws, and a rubber strap wrench on the moderator.  I frequently swap it between the Chaser and the Plinkster.  It's a very efficient moderator, and makes either gun sound about like a stapler.


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marflow
(@marflow)
Joined: 1 year ago
Posts: 566
September 15, 2018 14:28  

a Sumatra 2500 has a 10mm-1.00 barrel and Wolf Airguns could help

Mike


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B3ntong
(@b3ntong)
Joined: 1 year ago
Posts: 21
September 15, 2018 20:09  

Got now one of this fine Chaser kit when I chance on a sale for $95 shipped. I was overwhelm on how effective the LDC is, was able to able to swap it out with both barrels. Little bit of elbow grease and channel lock with piece of leather and off it go. When I first charge it with CO2 I though it didn't get pierced for all I got was the hammer hitting the valve stem. Did a 2nd dry fire with no pellet and same...just the hammer sound. Put a pellet and was surprised it smacked the target. Got the chrony and got 533 fps with 7.9 CPL and long barrel gave me 667 fps, that's with no mod to propulsion. I did replaced the sear spring from one off a disposable lighter and now wished all my air guns got the same 2 stage smooth trigger. Pinched the trigger housing to get rid of a slight wobble. I get about 45 full shots/12g cart and can actually plink all the way to 55 the after that it drops to 388fps then +-5 shots to empty.  I shoot this airgun more than my PCP's, pumpers and springers.  Got me 2 boxes of 40 carts/box from wally mart for $17.22/bx. I'm good to go this it get's cold to shot CO2. It loves 10.5 CPUM pellets.

ChaserS
LChaser

 


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JiminPGH
(@jiminpgh)
Joined: 1 year ago
Posts: 241
September 15, 2018 20:48  

Amazing, right?  Shoulder stock, pistol barrel with moderator makes for one stealthy quiet handy little gun.  I like your setup.  What did you use for the cheekpiece riser?


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B3ntong
(@b3ntong)
Joined: 1 year ago
Posts: 21
September 15, 2018 21:48  

SKS cheekrest

ATI


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pistolero
(@pistolero)
Joined: 1 year ago
Posts: 300
September 16, 2018 00:41  

Jim,

What weight pellets are your Dragonfly numbers with?

Thanks,

Ron

"No brag; just fact."- Will Sonnett


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JiminPGH
(@jiminpgh)
Joined: 1 year ago
Posts: 241
September 16, 2018 05:46  

7.9 Benjamin Hollowpoints, AKA CPHP, measured at the muzzle with a Combro chrony.  Your mileage may vary.


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JiminPGH
(@jiminpgh)
Joined: 1 year ago
Posts: 241
September 18, 2018 16:46  

Credit to Steve-in-NC.  He quickly grasped the reason behind the existence of the silly rubber bushing, which appears to be there simply to prevent over-pumping.  Think about it, as pump pressure rises, the bushing expands against the tube, making over-pumping eventually impossible.  Unfortunately, it robs a lot of effort along the way, even at lower pressures.  If I were mass-marketing a pump gun, I would probably do the same thing: build in a fail-safe mechanism to keep the over-enthusiastic among us from ruining a perfectly fine mechanism, and then having a warranty claim.

The non-compressible spacer I put in its place has merely recovered the pump effort robbed by the compressible bushing.  It has also enabled me to shoot this gun very enjoyably at 3-4 easy pumps.  Can the gun be abused with this simple substitution?  Of course.  But why would I want to do that?  I'm happier with the better efficiency.  This was always the philosophy behind the Steroid Sheridan, more efficient pumping.  SAME power for LESS effort, not MORE power for SAME effort.

I shoot my Dragonfly between 3 and 6 pumps, depending on range, and seldom go to 8 pumps.  Too much work for too little reward.  I've found I seldom need more than 800 fps in .177.  If you want to push beyond the limits of a pump gun, you will soon run up against weaknesses you didn't even know about, like pivot point and pump linkage failures.  I just like mine the way it is, and I'm enjoying the increased efficiency within the designed power range.


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