Dynamic .25 cal PCP - First Impressions and Observtions

[Wayne52]

It's mainly the hammer spring Greg, its worn out from use is all and don't have the umf like it use to.  I'll get a thicker wired spring in the same length, should work better than the old one.  The regulator is fine I'm sure.  I also am going going to get some fill probe o rings for it in 80duro or 90 duro, anyone got recommended material for this application.

[Wolverineshooter]

Do you deburr the bore with JB paste stuff? Is it worth doing for accuracy purpose?

[nervoustrigger]

James, okay thanks for the info.  Good to hear the hammer spring appears to be lighter on the .22 cal.

Ron, thanks for the kind words.  Like you said, this platform is super easy to work on, and it’s nice that a RVA is built in and the hammer spring is easy to remove.  A basic tune is so easy.

Wolverine, I did the full treatment on my barrel but due to the bad crown, I didn’t bother doing individual things in isolation. The bore felt a little rough when pushing a pellet through. Accuracy is remarkable now with the JSB 34gr.  Yesterday it was drilling aspirin-sized bullseyes on my 43 yard target 4 out of 5 times.

[Wolverineshooter]

Wolverine, I did the full treatment on my barrel but due to the bad crown, I didn’t bother doing individual things in isolation. The bore felt a little rough when pushing a pellet through. Accuracy is remarkable now with the JSB 34gr.  Yesterday it was drilling aspirin-sized bullseyes on my 43 yard target 4 out of 5 times.

That is great to know, Jason. I will then try it (first time).

I looked for the 0.177 VFG felt at the link https://www.brownells.com/gun-cleaning-chemicals/patches-mops/cleaning-pellets/weapons-care-system-pellets-prod13839.aspx but did not see it. They do have 0.22 and 0.25. Any suggestions?

[nervoustrigger]

No VFG available for .177 cal.  I use a brass jag and cotton patches with Kroil and JB bore compound.  Be sure your cleaning rod rotates freely so the patch follows the rifling. A ball bearing cleaning rod works well. Mine was a conventional rod that I added a couple of 4mm ID ball bearings to and seated their OD into a wooden handle.

[Wolverineshooter]

No VFG available for .177 cal.  I use a brass jag and cotton patches with Kroil and JB bore compound.  Be sure your cleaning rod rotates freely so the patch follows the rifling. A ball bearing cleaning rod works well. Mine was a conventional rod that I added a couple of 4mm ID ball bearings to and seated their OD into a wooden handle.

Jason I have the typically rod from the cleaning package, the handle does rotate but I am sure no bearing inside.

[nervoustrigger]

Yeah that sounds like mine...it was just a cheap cleaning rod but a couple of ball bearings added to the shaft (using red threadlocker) converted it to a good lapping rod.

Measure yours.  If it’s 4mm which is common for anything made for .177, it only costs about $5 to convert.

[Wolverineshooter]

Thanks Jason for the link.

Looked at Brownell for the felt adapters but is out of stock. I was told the next shipment will be in November or later. I guess I have to use the cleaning rods , jags and cleaning paper that is in my cheap cleaning package, like what you did

[nervoustrigger]

Quick update...I added this note to Wayne's thread but since a good bit of troubleshooting info is captured in this thread, I figured it would be good to add it here as well. 

I was having a slow leak through the regulator's vent hole in the tube.  Not fast enough to hear but a clear piece of tape placed over the hole would lift after a short time.  Since it's rainy this evening, I decided to drain the reservoir and have a look.  Turns out there's just one O-ring internal to the regulator and in this case it looked a little ratty.  A -012 in 90 durometer fit nicely so I reassembled it and brought it back up to 200 bar to monitor it and see if that cured it.  The vent hole isn't weeping any longer so hopefully I didn't introduce any new leaks.

[Wayne52]

Jason I think I have the same problem with my 25 cal also, the .177 & .22 are holding air fantastic however eventually I'll be replacing all three with the 90duro -012 like you described.  It's time to make an order from the O-Ring Store again.

[Wolverineshooter]

Quick update...I added this note to Wayne's thread but since a good bit of troubleshooting info is captured in this thread, I figured it would be good to add it here as well. 

I was having a slow leak through the regulator's vent hole in the tube.  Not fast enough to hear but a clear piece of tape placed over the hole would lift after a short time.  Since it's rainy this evening, I decided to drain the reservoir and have a look.  Turns out there's just one O-ring internal to the regulator and in this case it looked a little ratty.  A -012 in 90 durometer fit nicely so I reassembled it and brought it back up to 200 bar to monitor it and see if that cured it.  The vent hole isn't weeping any longer so hopefully I didn't introduce any new leaks.

Thanks Jason for the timely update, I will need to get some of theses P12 duro 90 orings to fix my DAR25, hope that is all the cause.

[Wolverineshooter]

Placing an order for the 012 viton 90 o-ring, any other o-rings I should order for back-up?

[Rat Sniper (AKA: PaulT58)]

Placing an order for the 012 viton 90 o-ring, any other o-rings I should order for back-up?

If you don't already have the 117 Duro90's on hand, you may want to grab those as well...

[Wolverineshooter]

Placing an order for the 012 viton 90 o-ring, any other o-rings I should order for back-up?

If you don't already have the 117 Duro90's on hand, you may want to grab those as well...

Thanks Paul. I found the O-ring kit list and will be ordering a set of them

[Wayne52]

Well I got problems with my DAR22 right now, the darned safety fell out when I was out in the woods today, I looked for it retracing from the last time I put it on safe but couldn't find it, when I got home I took it apart to see what happened and the trigger where the setscrew/plunger was stirpped out and it had fallen out allowing the safety to fall out as well.  I did send AimSports an email trying to get it resolved already, we'll see what happens and I'm keeping my fingers crossed because I really like the gun but prefer having a safety on it.   I did get a black and red squirrel while I was out there though

[Rat Sniper (AKA: PaulT58)]

Well I got problems with my DAR22 right now, the darned safety fell out when I was out in the woods today, I looked for it retracing from the last time I put it on safe but couldn't find it, when I got home I took it apart to see what happened and the trigger where the setscrew/plunger was stirpped out and it had fallen out allowing the safety to fall out as well.  I did send AimSports an email trying to get it resolved already, we'll see what happens and I'm keeping my fingers crossed because I really like the gun but prefer having a safety on it.   I did get a black and red squirrel while I was out there though

Wayne, worse case you can always rethread the hole to a larger size and put in a new set screw if you can find the safety piece.  It seems to be a pretty common looking safety, maybe one from another gun would fit.  Hopefully, Aim Sports will come through for you.

[Wolverineshooter]

Wayne, good luck with getting the parts. I suspect they will ask you return the gun and promise you a new gun next year.

[Nvreloader]

Wayne
Would the QB safety parts fit?

Since the are a close relative?

Tia,
Don

[Wayne52]

Some of you might have seen the pic that I posted in another thread about finding my safety the following day after losing it.  I tried for a short time looking where the safety was for the tiny spring and plunger but without my readers there was any way I'd ever find it so I ordered a spring and plunger for a colt 1911 that just might work, it's going to be here Thursday.  The threads are so bad in the trigger I'll just dig up a grub screw really close in size  and blue loctite it.

                                                                                                   

I also replaced the internal -012 o ring in the regulator on my DAR25 and it's been 4 days now since I replaced it and the gauge is right where I left it.  This has cured a slow leak that that it started about two weeks ago and it's definitely cured  Look how bad the o ring is that I took out of it.

                                                                                                 

[Gertrude]

Wayne,
Are you aware that Aim Sports has really stepped up to the plate, and has issued a full customer service refund/recall ?

They are not messing around or making any excuses. The guns were unintentionally released with a few QC issues.  They are working to correct the problems and are comitted to their Customers.

The recall gives the customers 2 options.
Option 1 - return the gun to Sportsman Guide and receive a full refund.
Option 2 - return the gun to Sportsman Guide and when the gen 2 guns arrive
  sometime after the new years you will get one at no charge.
They do not want to have poor quality products out there, and they do not want to be continually chasing QC issues on these Gen 1 guns.

Seems to me,  like a pretty great Customer Service offer, that we don't see in very many other companies these days.
I understand the gun is a good shooting gun. I like mine too.
 But I can also understand when a company sees a issue, and does everything they can to eliminate the problem.