Author Topic: Any one ever heard of the Dynamic PCP air rifle? (Read 57562 times - 1 votes)
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Nomadic Pirate · « **Reply #320 on:** July 15, 2018, 03:55:50 PM »

Honestly, in today's world of deciving advertising I really don't believe much.

When Crosman was trying to make it sound like the Marauder was made in America, you could tell at that price point it wasn't true, when someone tells you a rifle is coming with select grade walnut at under 300 bucks, that's a red flag indeed,

Price will reflect reality,....but clever advertising does make sales

Gertrude · « **Reply #321 on:** July 15, 2018, 04:01:17 PM »

Quote from: Nomadic Pirate on July 15, 2018, 03:28:33 PM

Did any of you really expect Select-grade walnut at that price point ?

Hahaha X2,
I certainly did not (and do not) expect real walnut on these guns. I figured all along that the confusion probably came from a misinterpreted translation from a Chinese description being translated into English language.
We see it all the time on Chinese products and owners manuals written in English by a Chinese translator.
Real Walnut ? - no way
Walnut color Stain on Beech wood ? - most likely

Thinking there will be any sort of Compensation from SG , AimSport, or Dynamic ? That is just not realistic thinking. No way that is going to happen. JMO

KnifeMaker · « **Reply #322 on:** July 15, 2018, 05:21:37 PM »

Many rings have a steel side plate that you tighten to lock the rings in place. Rotate the plate with the claw 180 degrees, and it should now fit. It is meant for two different sizes rails.

Knife

Nomadic Pirate · « **Reply #323 on:** July 15, 2018, 05:30:11 PM »

Quote from: KnifeMaker on July 15, 2018, 05:21:37 PM

Many rings have a steel side plate that you tighten to lock the rings in place. Rotate the plate with the claw 180 degrees, and it should now fit. It is meant for two different sizes rails.

Knife

Wayne52 · « **Reply #324 on:** July 15, 2018, 06:54:17 PM »

Mine is still holding air good yet, I did measure those o rings and by the dimensions I'd say it's an 020 I was thinking about ordering some from ebay but I'd rather go to Menard's and match them up, they sell them individually very cheap, I'll probably get a dozen of the 70duro nitrile ones they have, I've read really good reports on their nitrile orings there. I think the Chinese o rings are the main problem on the reg o rings myself.

The last time I took it apart I figured I had two left from the o ring kit that came with it and I went ahead and put both new o rings on it and that's almost 2 days ago, I also shot it about 50 times filling it back up to 3K each time, It's still right at 3K too.

deerflyguy · « **Reply #325 on:** July 16, 2018, 04:11:23 PM »

Well what do you know?
My rings came today and I already mounted three scopes in about 1-1/2 hours, which is as it should be.
It really helps to have rings that were made to fit right out of the bubble pack.
FYI - They are Weaver Grand Slam, 1" Extra-High - Matte, .22 cal Scope rings for 3/8" Grooved Receivers.
Even extra high rings are just barely enough to clear the barrel with a 50 mm objective lens.
Unless you are using a side focus scope, you might have a problem adjusting the objective lens or you might have to use BKL base mount risers - dovetail to dovetail?
For sure, you will want to use your scope without the flip up caps in place.
For this reason, if you want to use the flip up caps, you might not want to use any scope with an objective lens greater than 44 mm - and then, that will entail using extra high rings.

tracker1955 · « **Reply #326 on:** July 16, 2018, 08:10:13 PM »

Good news, got an email from Rich Neighbor at Aim Sports and they are sending me a brand new rifle to replace the one I sent back. They're also sending it 3 day and it shipped today so I should have it by weeks end at the latest. I hope they pressure tested the new one before sending it out, would hate to go through this again. Wish me luck. Glad to hear others are having good experiences with theirs, am really impressed with the FPE numbers on the 25 cal, almost makes me wish I had ordered it but wanted a regulated plinking gun with enough power for small pests. Keep the reports coming guys as I think they're watching, more than I can say about ..... never mind.

Wayne52 · « **Reply #327 on:** July 16, 2018, 08:40:44 PM »

I wish you the best of luck Tom !!! I know mine has been a real PIA to try to get sealed and working right. It had a slow leak after I sealed it on my last post, I took it back apart and found some weird fibrous material that had been wrapped under two other o rings that was obviously a jury rig from the factory to get it to kinda seal. The orings were just plain junk that come in the gun and the extra set they send with them are junk too, they split crack and won't hold up. I've hopefully got some better o rings coming that are the buna n duro70 nitrile ones and hopefully they're the right size.

BigMike1 · « **Reply #328 on:** July 16, 2018, 09:04:44 PM »

Quote from: Wayne52 on July 16, 2018, 08:40:44 PM

I wish you the best of luck Tom !!! I know mine has been a real PIA to try to get sealed and working right. It had a slow leak after I sealed it on my last post, I took it back apart and found some weird fibrous material that had been wrapped under two other o rings that was obviously a jury rig from the factory to get it to kinda seal. The orings were just plain junk that come in the gun and the extra set they send with them are junk too, they split crack and won't hold up. I've hopefully got some better o rings coming that are the buna n duro70 nitrile ones and hopefully they're the right size.

Wayne i found the same stuff !! Its like they were trying to shim the orings . i removed it all and used the larger orings It is a fun gun to shoot!
Mike

deerflyguy · « **Reply #329 on:** July 16, 2018, 09:39:07 PM »

Why do you suppose they would jury rig the "O" rings rather than put some decent ones into a new gun that they should want to launch without a hitch? Are good "O" rings a budget buster?

BigMike1 · « **Reply #330 on:** July 16, 2018, 09:45:15 PM »

Bill I can't imagen what the deal is with orings in china ! But the ones that come with my YH compressor and this rifle were very poor quality!

Vee3 · « **Reply #331 on:** July 16, 2018, 09:50:03 PM »

Quote from: Wayne52 on July 16, 2018, 08:40:44 PM

I took it back apart and found some weird fibrous material that had been wrapped under two other o rings that was obviously a jury rig from the factory to get it to kinda seal.

The old dental floss under the O-ring trick, eh Chief? Looks like they missed the O-ring groove depth by that much...

deerflyguy · « **Reply #332 on:** July 16, 2018, 10:02:03 PM »

That's a good one, Victor!

deerflyguy · « **Reply #333 on:** July 16, 2018, 10:07:31 PM »

I'd like to obtain a selection of replacement "O" rings for current and future use in air gun repairs. Can anyone suggest what sort of selection I should get, and of what quality? How do you guys know what sizes to obtain, or keep on hand? Do SAE and metric full sets make sense, or should I just keep certain sizes around - those that are more prone to failure?

Gertrude · « **Reply #334 on:** July 17, 2018, 12:47:31 AM »

Quote from: deerflyguy on July 16, 2018, 10:07:31 PM

I'd like to obtain a selection of replacement "O" rings for current and future use in air gun repairs. Can anyone suggest what sort of selection I should get, and of what quality? How do you guys know what sizes to obtain, or keep on hand? Do SAE and metric full sets make sense, or should I just keep certain sizes around - those that are more prone to failure?

I know this is not exactly what you were looking for in an answer, but it would be very difficult to list "most used" sizes of orings considering we all have various guns, brands, models etc.
That being said,
a few of the guys in my group have the standard "o-ring Assortment packs" from HF, and they have saved a day of shooting several times for quick "in field fixes".
Sure,... I know they may not be a "Perfect fit", but on SEVERAL occaisions we have found a sutiable size between the SAE and/or Metric sized assortment packs to get a quick fix while in the field.

The assortment packs are only around $6 - $8 for over 200 orings in the pack.
Not a very big investment to have them along in the shooting bag.

nervoustrigger · « **Reply #335 on:** July 17, 2018, 01:18:01 AM »

I agree 100% with Ron. The HF assortments are great to have around for occasional fixes. Mine has saved the day many times and they are surprisingly good quality. Haven't yet had a bad one and their longevity has been on a par with O-rings bought from other sources.

https://www.harborfreight.com/382-piece-o-ring-assortment-67554.html
https://www.harborfreight.com/397-piece-metric-o-ring-assortment-67580.html

deerflyguy · « **Reply #336 on:** July 17, 2018, 01:52:18 AM »

Jason & Ron:

I'm mostly concerned in getting the correct rings in size and quality that will probably work for multiple air gun types.
I'm not concerned at what they might cost, as I want strength and longevity when I repair something, and will pay what it takes to get it. I've been looking at Amazon for what they sell. Would you recommend one brand/kit over another?
What I really want to know is the best quality and that I will have a good chance of having what I need in a kit, when I need it. Am I correct that I might need both SAE and Metric sizes, or are air guns mainly metric? Is one brand of ring better than another?

Wayne52 · « **Reply #337 on:** July 17, 2018, 02:35:58 AM »

I'm tempted to make a trip to Harbor Freight tomorrow and get both of the kits that Jason has listed there. The o rings from there do seem to work good and I've been using them for about a year now but I had one Nitrile kit and 1 Viton kit that I got from there that were the smaller kits(both sae). I've got two of the Viton's on the regulator right now that seemed to cure the air dump that a lot have been having but it's now still got the slow leak. I'd really like to get this gun sealed right before taking it out hunting. I doubt it's a fill probe o ring leaking that slow, usually they totally fail when they do, I'm suspecting one of the big ones on either end of the airtube is where it's happening but I guess it could be the undersize vitons I have on the regulator

Needless to say is that having a 300cc tank these guns do take a considerable amount of air to fill them and even filling from my 88cf tanks this gun will hog that air fast if I keep having to fill it from zero a lot.

Gertrude · « **Reply #338 on:** July 17, 2018, 03:00:28 AM »

There is more to know about orings than any average mortal (me) can possibly comprehend.

All I know is, some are harder, some are softer, some tear easier, some are more permeable to Co2 vs. air.
and they all come in different sizes, thicknesses.

but, if one of the more superior minds here can't provide a suitable answer,
then maybe this will have the answers you seek ...
https://www.parker.com/literature/ORD%205700%20Parker_O-Ring_Handbook.pdf
(Happy reading)

For me,... I just use the HF orings, and if the assortment pack does not have what I need,... then it's off to the hardware store to see what I can find.
If that doesn't work,... I head to a local industrial hardware supplier. We have one here about 20 miles from me called "McFadden-Dale Industrial Hardware", that has a good assortment of sizes and types.

And if THAT doesn't work, I go here...
https://www.alliedpackingandrubber.com/index.php/products/seals

I'm sure if you do a little googling in your area for a rubber supplier, you will find something similar to the above linked business.

deerflyguy · « **Reply #339 on:** July 17, 2018, 08:16:15 AM »

Thanks guys!
I think I've learned just enough about "O" rings to be dangerous to myself!
It's amazing how much there is to know about something so simple!

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Any one ever heard of the Dynamic PCP air rifle?

Author Topic: Any one ever heard of the Dynamic PCP air rifle? (Read 57562 times - 1 votes) )

Nomadic Pirate

Nomadic Pirate

Author Topic: Any one ever heard of the Dynamic PCP air rifle? (Read 57562 times - 1 votes)
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