Testing new discovery

[USAFANG6799]

I wonder if this material wrapped a couple time around the barrel would work.  Wouldn't be hard to try.

https://designengineering.com/boom-mat-flex/

I don't want to demolished your theory but,  when I introduce my taught on using rubber oring supporting a weighted sleeve over an existing LCD,  the WARM WELCOME I RECEIVED make me dish my comments and keep the results for me.

Think happy thoughts.
That’s what “Brain Storming” is all about.

[grand-galop]

I wonder if this material wrapped a couple time around the barrel would work.  Wouldn't be hard to try.

https://designengineering.com/boom-mat-flex/

I don't want to demolished your theory but,  when I introduce my taught on using rubber oring supporting a weighted sleeve over an existing LCD,  the WARM WELCOME I RECEIVED make me dish my comments and keep the results for me.

Think happy thoughts.
That’s what “Brain Storming” is all about.

 

[USAFANG6799]

I don't know if the brainiacs here have noticed, but all this theory and what if's has completely derailed the thread.


Test is what this thread called for. Many posters have completely been run off due to the complete hard turn it has taken. It completely pushed the everyday shooter out. Which is exactly who the thread was intended for.

Test or move on please!


Please start a new thread for all this maybe/maybe not theory.


For all those that have actually worked hard and tested, both successful and not so, Thank You All. Keep it up. A wealth of info is being generated for us all to benefit from . We don't work in a lab. It is mostly, useless info for the shooters here.


The testers work is on the other hand very to the point and can be duplicated by all.


Once again, Thank You All!!! 


Knife

Aye Aye Captain....course correction duly noted.
Good reminder especially since it’s your thread and what the title of the thread is. 

[mr007s]

I am an everyday shooter. I am testing a simple and cheap dololly on one of my non shrouded guns. I will write up a full report when I come to a conclusion, either success of failure. So far it looks to work in shrinking groups with my worst grouping pellet. I will test for repeatably just to make sure it isn't me having a good/bad day. I am testing indoors to rule out any weather issues. Fingers crossed for success. Also plan to test with my best grouping ammo to see how it is affected. Over and out.

[KnifeMaker]

Thank you Mr. oo7! Exactly what this thread is all about. I see that my request above was completely ignored.


It may be time to contact the moderators. Enough is Enough!


Please carry on Mr. oo7, anxiously awaiting your results. 


There are doers and talkers. We need doers here on this thread.


Knife

[avator]

Please reread reply #383.

[cosmic]

Caps might be the issue....

[KnifeMaker]

Thank you for your post #383 Bill, Sadly, somehow, it seems to have been missed or ignored.


Will be testing more lead shot, very thin liquid with lead, lead with no liquid, and possibly tungsten powder next.


Currently I am tied up decking and modding  a couple of molds of different calibers for a fine member here. When I do custom work, my attention is completely on it. Nothing else.


I will be back to testing very soon. No more than two to three days.


Knife

[Lani52]

My Skyhawk shoots the Crosman HP’s extremely well, the NOE cast pellets not so much.

When I JBWeld a 3x1/2 copper tube with steel BB’s and Slick 50 on the shroud, accuracy goes from poor to great with the NOE cast pellets, problem is it is uglier than a hickey on a hemtroid.

My shroud became too short when JSAR rebarreled the rifle with my requested 20 inch LW barrel, and the threads were machined crooked on the shroud.

My solution:

I recently ordered a aluminum tube 20 inches long that has the correct ID.  I am going to ship it to Lee545 with the barreled action to have Lee545 fit his 25 caliber plenum for the Huma reg and to make me a shroud from the aluminum tubing that  will be 15 inches long.

Wit the the excess tubing, I am having a dampner made, it will be 3 inches long, 1.1 OD and will have a bronze .50 tube running down the center.  It will attach with a 1/2x20 nipple on the shroud emd cap, so when I do not want the extra weight and length, I will simply unscrew it and put it in my pocket.  I plan on filling it with a heavy silicone oil and # 8 shot and sealing it well.

Due to the fact it will have the .50 bore, I can also have my extra Bulldog upper shortened and the protruding barrel threaded to 12x20 to use the dampner on the Bulldog.

On the Skyhawk I am wanting a almost seamless shroud to dampner union that although it resembles a ldc, it will have no sound reduction.

Roachcreek

[rsterne]

I have a plan, and the materials are ordered.... You have seen the adjustable harmonic tuners I have for my .172 through .257 cal PCPs that look like this....



I have designed a lead shot and oil filled damper to test in place of the solid 1.50" OD brass weight, that looks like this....



It fits onto the threaded sleeve on the muzzle of my guns, and the position will be adjustable, just like the brass weight.... This will work for the regulated bottle gun.... For the unregulated gun, I will shorten the length and the inside will look like this, bored to slide over the 20mm CF barrel sleeve....



However, the outside will be 1.50" tubing, which will give me an internal volume of 0.97 CI per Inch of internal length.... This will fit directly on the 1/2"-20 NF threads on the muzzle (with the threaded sleeve removed), and it will be short enough to clear the front of the air reservoir on the unregulated version....

I also ordered some 1.25" OD tubing and rod to make the smaller Coaxial Damper to fit my guns with up to 16mm OD barrels.... I won't get to machine these until the winter, and may not get to test them until we close the Motel in 2021.... but when I do, I will be able to try both the solid brass and "dense fluid" dampers on the same guns.... I know that is a long time to wait for results.... but it's the best I can do.... 

Bob

[KnifeMaker]

Mr. Bob;
 Very much looking forward to your efforts. Regardless of how long it takes!


RC;
Very glad it worked with pellets. Woo-Hoo!!!


Mike

[mr007s]

Been reading this thread (30 pages so far, GRRRR!) since that first TEASER post by knife. A lot of it is over my head. Really didn't think it would pertain to me since all my shooters are shrouded and I dont cast or use slugs.
Then I thought of my recent purchase of an R7 from Flying Dragon. I tested 10 different pellets trying to find the one that would produce the most consistent accuracy. The test was done in my basement at 10 meters.Twenty shots were taken with each brand/weight pellet at four targets getting five shots each. The 4 groups were measured, recorded, then averaged, as were the largest and smallest groups.
I began with my worst pellet, the RWS Basic Diablo 7 grain.The first 20 pellets were shot with only the globe site at the barrel end, second 20 were shot using the device directly behind the globe site.
Without the device the group measured an average ctc of .829", down right bad!
Using the device the group averaged .623", and if I did the math right that was a 24% improvement. Still not acceptable.
Next, I was curious if the best performing pellets could be improved with the "HAPPY Device"
(I cant call it MAD because I am happy about how it performed.)
The AA 7.87 had performed nicely w/o device scoring an average of .306" ctc. With device it delivered a .273 avg., and improvement of 11%.

The other AA pellet that scored well was the 8.44 with a .357 no device avg.
With the device it was improved to .274 ctc, improving 23%.
Note that the top left target had a flyer. If it is left out the results are both with and without device are the same. But, I chose to count them where they land, maybe it was me, maybe the gun or pellet but it landing there so I counted it.

NOW THE DEVICE! I wanted something simple and had planned to put a large number of o-rings behind the globe site to have a nice soft surface to grab while cocking plus I think it looks a little like a moderator. I like it and that is what matters. I began to wonder if the rubber o-rings would act to absorb any vibration, hence this test.

Conclusion:Perhaps the device did improve the groups, or was it me just getting better. I lean toward the device. It gave me confidence and that is a good thing!
Thanks for reading and comments are welcome,  GRRRR!

Pictures of HAPPY DEVICE to come soon.

[grand-galop]

So Ray!!  You are saying that the device is SITTING on oring???
How much are you Attribute the oring in the improve accuracy??
Have you try the device without the oring??

BTW!  Nice shooting..

[jarmstrong]

nice improvement .......I like the boring bar idea, a free weight suspended by rubber... I wonder if a metal sleeve slid over the o-rings would yield even better results for you, same principal as the bore meister, but in reverse, with the weight on the outside.  I have plans in my head to try this idea and felt using o-rings would be a quick and easy way to test

[mr007s]

So Ray!!  You are saying that the device is SITTING on oring???
How much are you Attribute the oring in the improve accuracy??
Have you try the device without the oring??

BTW!  Nice shooting..

Negative, the o-rings, 20 in all-  dash # 311 ARE the device. I will post a photo tomorrow. My camera battery is charging.
 GRRRR!

[mr007s]

nice improvement .......I like the boring bar idea, a free weight suspended by rubber... I wonder if a metal sleeve slid over the o-rings would yield even better results, same principal as the bore meister, but in reverse, with the weight on the outside.  I have plans in my head to try this idea and felt using o-rings would be a quick and easy way to test

Once the dash#311 o-rings were positioned on the .590" barrel the O.D. of the rings measure app. .988". I am thinking a piece of carbon fiber with an I.D of 1 inch would probably slide on tight and give a nice look. Would it affect my shots or not, have no idea. Thing is, I like the look and feel of the o-rings as it sits now. If I had a piece to try I would but the price is high from the places I searched.

[KnifeMaker]

Ray, thank you for trying it our.


We have one member here that seem intent on putting it down. He states that it is hit or miss. I think if he would get off his high horse and read the entire thread, much less the pm's i am getting he would realize it is better than 20-1 in favor.


When you have that many successes, compares to such a low failure rate, it is way above average for just about any shooting accessory.


Plenty good enough for me! 


Knifet

[mr007s]

Following up on my previous post decribing the test with my very simple DEVICE. Go to post 591 to read all about it.

I purchased a pack of 50 dash number 311 O-Rings from McMaster Carr.
Oil-Resistant Buna-N O-Ring
3/16 Fractional Width, Dash Number 311 -I.D. .590-O.D. .937.
 Removed the globe sight, slid 20 o-rings on the R7 barrel to sit up next to the reinstalled sight. I chose 20 because the length worked out for my hand size as I grab here to cock it.

Here are the promised photos..

[Nvreloader]

Ray

Neat Idea with the "O" rings. Question for you,

What does 20 of these "O" rings weigh, total weight?

Tia,
Don

[Lefusil]

Ray

Neat Idea with the "O" rings. Question for you,

What does 20 of these "O" rings weigh, total weight?

Tia,
Don

Wondering the same thing...