Any one ever heard of the Dynamic PCP air rifle?

[RVaughn]

Whatever wood it is, we would have bought it anyway. It looks nice.
We'd have paid that much for a synthetic stocked regulated air gun.
Last year, we did just that!
The Umarex Gauntlet!

Couldn't agree more!
I knew fully when i puchased that we knew nothing about this gun except that it was made in china.
Also knew that meant i would most likely be tinkering with it from day 1 and it wasnt gonna be a german engineered , work of art, just unbox and shoot kinda rifle..

Imho for the $ i payed for it , i couldnt be happier!
Ive been waiting for an inexpensive ,accurate side lever rifle for a long time.
This gun checks all 3 of those boxes for me.

So u really do get what u pay for most the time, and at $269 to my door my expectations where not very high.
Guess thats why im happy with my purchase...

[Rat Sniper (AKA: PaulT58)]

Rhett, I agree 100%!  I replaced the regulator o-rings this morning due to one having a large chunk of rubber missing from it!  While I had it apart, I removed the cocking lever pin and added a brass washer I made from a YH Compressor burst disk.  That really tightened up that sloppy lever and made it feel much sturdier.  I also noticed the regulator appears to be adjustable, and the plug that retains the hammer spring can also be adjusted to increase/decrease hammer spring the  So, all in all, it is a pretty tweak able rifle for the money!

[Rob M]

Rhett, I agree 100%!  I replaced the regulator o-rings this morning due to one having a large chunk of rubber missing from it!  While I had it apart, I removed the cocking lever pin and added a brass washer I made from a YH Compressor burst disk.  That really tightened up that sloppy lever and made it feel much sturdier.  I also noticed the regulator appears to be adjustable, and the plug that retains the hammer spring can also be adjusted to increase/decrease hammer spring the  So, all in all, it is a pretty tweak able rifle for the money!

I just noticed , the entire tube and breech appears to be machined from one block  , pretty cool!

[Wayne52]

It's a monoblock design.  I haven't figured out how my trigger mecha has to be reassembled, maybe I'll work on it soon

[Wayne52]

I finally figured the durned thing out, it's back together and holding air.  I never should have tore into the thing like I did when I did because I wasn't in the greatest mood and had no business working on anything at the time.  The trigger mecha was something so simple I'm ashamed to admit it but now I do know fully how this gun ticks now.  The culprit was an o ring on the regulator like Mike said with his, if I had just taken what he had found out to begin with a lot of the problems never would have happen.

One thing I can say is I cleaned up all the corrosion that was inside this thing and there was a lot of it.  It actually looks like salty air is what caused it and probably on the slow boat from China is where it picked up that salt. Without protection against corrosion it took it's toll but I guess what can one expect for the price of these guns.  I still really wish that they indeed had walnut stocks like SG said they had.

[Wayne52]

I just mounted a scope on it, now I'm going to see how it's shooting after a few hours, I think I finally got the thing cured finally.  The scope I put on it already had the 11mm mounts on it so just for the heck of it I tightened them up for a rock solid fit, I didn't need the 10mm rings after all, the 11mm's fit perfect.  Now I hope the scope is good because it's one that I picked up at the airgun show last year but never really put it to use but I'll soon find out. I'll probably start out with 25.39's in it cause I've got a full tin of those, the ones that I've been casting are a little snug in the clip and make it a little finicky for chambering the next round.  I have to move it around a little to get the next pellet to locate.

[Rat Sniper (AKA: PaulT58)]

Hey Wayne, glad to hear you got everything back together again!  That had to be frustrating with a brand new air rifle.  I've got mine holding air as well.  I had the same problem as you and Mike, the regulator o-ring had a rather large chunk of rubber missing.

I think the reason my acted so odd, total air dump, but then held air again for 2 days, followed by another total air dump, was because the chunk of rubber ended up stuck in the vent hole of the air tube.  It must have been acting like a cork to hold the air.  It wasn't until I started picking at it, wondering what the heck it was, that it let go again.

I am happy to say that I did not see any corrosion when I tore it down and reassembled it multiple times as I tried to find an o-ring that would work and hold air.  I think I finally got the right size, or at least one that is working for now.  Just curious, what is the serial number on your rifle?  Mine is:  DW17120002  I'm wondering is the build date was Dec 2017 based on the 1712 portion of the number?  I'm also curious to know if it was the second .177 they made based on the 0002?

I'm hoping to get some trigger time today and see if it's settled down any.  I may also try and play with the hammer spring adjustment to see if it has any impact on power.

Anyhoo, congrats on getting yours working!  I sure hope that after all that it's a shooter!

[tracker1955]

Glad to see you both got them working again. Wayne, I've learned to take pictures when I disassemble something with more than a couple parts, the old noggin just doesn't retain short-term info like it used to. If something pulls my attention away for even a moment I forget where I was at, and the sequence it goes back together in. Of course this is only a problem with stuff I'm not familiar with. It's a shame how age creeps up on ya.

[Wayne52]

Paul mine is DW17120074 so yours must have been the second one and mine must be 74.  Mine is a .25 and the magazine needs some work on it too.  All the corrosion was in the trigger mechanism on mine but that's the stuff that gets exposed to that salt air, if you open up you trigger mecha you might see some corrosion but they're a pain to get back together.  I did shoot two dime sized groups at about 20 yards with it this morning.

[BigMike1]

If any  of you guys still have issues with the reg orings I also found the air tube to be rough  inside and a sharp edge were the reg has to slide in so i used a wheel cylinder hone to clean and knock the sharp edge off !!  Mike

[Rat Sniper (AKA: PaulT58)]

Paul mine is DW17120074 so yours must have been the second one and mine must be 74.  Mine is a .25 and the magazine needs some work on it too.  All the corrosion was in the trigger mechanism on mine but that's the stuff that gets exposed to that salt air, if you open up you trigger mecha you might see some corrosion but they're a pain to get back together.  I did shoot two dime sized groups at about 20 yards with it this morning.

Interesting, I wonder if the serial numbers are all generic or specific to a caliber?  Seems they are pretty generic.

After reading your problem with the trigger assembly, I’m pretty gun shy about tearing into it. I took the stock off the other night specifically with the intent of taking a picture of the trigger assembly to help you get yours back together. Almost as soon as I pulled the stock, the trigger pivot pin slide out and hit the floor!   I got it back in and after looking things over could not figure out how to get into it, so I put painters tape on both side to prevent any other pins from sliding out. I guess I was expecting a trigger assembly like Crosman uses where I could just remove a side cover and click a picture of everything where it belongs. Doesn’t appear that’s how these work.

So, out of curiosity, how do you disassemble the trigger assembly?  Do you just remove pins and slide everything in and out from the bottom?  If so, it sounds akin to building a ship in a bottle and if that’s the case I’m not sure I’m willing to tackle that project!

[Rat Sniper (AKA: PaulT58)]

If any  of you guys still have issues with the reg orings I also found the air tube to be rough  inside and a sharp edge were the reg has to slide in so i used a wheel cylinder hone to clean and knock the sharp edge off !!  Mike

Mike, I was actually surprised at how smooth the inside is of my air tube was. I had runs a big piece of cotton t-shirt material through it a couple time with the intent of seeing how dirty it was and if the material had any snag indicating the presence of burrs. I was surprised when it came out clean and snag free.

What is the serial number on your rifle?  Seems QC dropped pretty quickly between my build and Wayne’s!

[Gertrude]

Can anyone here provide a pic of the vent hole for the reg ?
Where is it located ? And where is it in relation to the reg/orings/etc. ? And what is it "venting" ?

I am hoping to be able to remove the reg when ours arrives... And I'm wondering if this "vent hole" of which you speak is going to prevent that ?

[Gertrude]

It is probably going to be another week or so before my buddies arrives. It had to take a detour through Az before coming to Kalifornistan.
Once it gets here, we are hoping to do a max power slug pusher with it, so hopefully we can remove the reg altogether... But we need to know more about this vent hole and if that is going to create an issue.

[Wayne52]

Ron the vent hole is about 4 3/4" from the back of the airtube



I also had to fix the lever pin which is originally what got me to open up the trigger mecha along with the fact that my trigger adjustment screw was seized up and that's when I started seeing the corrosion, everything got brass brushed the best I could with some Hoppes #9 on it.

All the pins are knurled on one end and I had to repunch the lever pin into the steel connecting rod because it was already spinning in the aluminum lever.  She's in there tight now.

[Wayne52]

Ron I don't know if your friend ordered the 25 or not but my regulator has 149 written on it with a sharpie, that must be what they set the 25 cals at because mine drops off at about 150 bar.
Also I got the tighter groups with my cast 34.5 grainers, I tried the 25.39 grain but the group wasn't near as tight, they might have been going too fast.  Mine does 50+fpe the way the reg was set.

[Wayne52]

The vent hole on the airtube is between the two big o rings on the regulater.  It must be the valve poppet can handle much over the regged pressure that's supposed to be in there and it opens up the poppet and dumps the air.  Everything is adjustable on this gun, the poppet spring also.  Ron I'm sure you'll be tinkering with this one for a while.

[Rat Sniper (AKA: PaulT58)]

Here's another picture of the vent hole, it's right under the edge of the stock, you can see where it was blowing some oil out.  Mine was plugged by a chunk of rubber that blew off one of the o-rings (same o-ring Wayne is showing above).  It held for 2 days before giving our completely, so I'm not sure how you'd plug it unless you could put some epoxy of liquid weld in the inside of the tube to seal it off.

[jarmstrong]

It is probably going to be another week or so before my buddies arrives. It had to take a detour through Az before coming to Kalifornistan.
Once it gets here, we are hoping to do a max power slug pusher with it, so hopefully we can remove the reg altogether... But we need to know more about this vent hole and if that is going to create an issue.

got a lathe ? make a sleeve, same od and lenght as the reg with 2 o-ring grooves
you can always reinstall the reg if desired

[Wayne52]

I did a chrony test using 34.5 grain cast pellets, this gun ain't what you call a slouch, I do hope the regulator settles in better than this.
Using cast pellets works out good because I recover all the lead after I do a chrony test to melt down for more pellets.



This is one gun that I really couldn't do an out of the box chrony test cause it really wasn't working good from the get go.