Sorting pellets by viewing

[NoLimits]

Hello

Unfortunately I've had some problems with my hand for a long time. The pellet testing device (old version) is sold out. I've been able to work again for a few days now. I'll be bringing a new (improved) model onto the market in about two months. The new model is available with different sleeves and is suitable for pellets in caliber .177, .22, and .25.
Please be patient.
Contact: [email protected]
NoLimits

 

[Kgphotos]

View attachment 470775

Hello

Unfortunately I've had some problems with my hand for a long time. The pellet testing device (old version) is sold out. I've been able to work again for a few days now. I'll be bringing a new (improved) model onto the market in about two months. The new model is available with different sleeves and is suitable for pellets in caliber .177, .22, and .25.
Please be patient.
Contact: [email protected]
NoLimits

Well that certainly looks uncomfortable. I hope you recover well.
Kenny

 

[IMADMAN]

View attachment 470775

Hello

Unfortunately I've had some problems with my hand for a long time. The pellet testing device (old version) is sold out. I've been able to work again for a few days now. I'll be bringing a new (improved) model onto the market in about two months. The new model is available with different sleeves and is suitable for pellets in caliber .177, .22, and .25.
Please be patient.
Contact: [email protected]
NoLimits

lol. I had that in my early years when I thought I could break a telephone pole. It didn’t work and the Dr. manually reset it.
Wishing you a speedy recovery!

 

[Revoman]

Get gooder soon!

 

[dgeesaman]

Stupid question if I may? The pellets/projectiles that are obviously not concentric what is the cause of this? Is the die, mold or machine out of spec? Does the quality or raw material used to produce a pellet have anything to do with concentrisity? Do manufacturers even use lot numbers any more or is lot numbers more of a pb thing? I’m not a competitive shooter but the example being shown are eye opening.

Inconsistent raw material will certainly cause errors because production swaging tools are not perfect and have flexibility and clearances and I'm sure that material of uneven hardness will result in an uneven shape.

The speed of the machine, wear condition of the swaging die faces, cleanliness of the parts, consistency of lubrication, etc all play a role. Then there are the dies - each machine is a little different and if the dies are significantly different and they mix the output of those dies into tins, can seriously affect consistency.

I myself am deeply curious about JSB, as their pellets were geometrically excellent some years ago and while they were often damaged in transit, the undamaged ones were very very good. Nowadays I see significant unevenness in perfectly undamaged pellets. I suspect it's a combination of all of the factors and they are doing the best that they can while making their owners happy.

 

[Chief Ten-Beers]

Hello,
thank you for your interest.
Today I would like to go a little step further.
(I will show you my test machine a little later. Have a little patience.)

First, I would like to show you a real example of a pellet with a slanted rear end. This does not happen often, but even with premium pellets this defect can be slightly present.

View attachment 164374

The rear end is slanted and wobbles.

View attachment 164380

View attachment 164385



In my other test machine, the pellet is skewed and the axle wobbles.

View attachment 164393

View attachment 164400

View attachment 164410

Finally, an illustration to think forward and backward.

View attachment 164414



Now it's weekend, I'll get back to you soon.

NoLimits

The top pictures look like most of my Crossman HP's! lol

 

[BobS]

Hallo,

I live in Germany. Sorry I do not speak English well. Reading works better. That's why I like to read in this forum from time to time.

I shoot air rifle and air pistol in .177 caliber for many years. I like to share my experience and knowledge that some European sport and benchrest shooters need.

I have tested a lot and compared many factors, but at some point I asked myself the question:

What is it that makes a pellet good ?

Sorting the pellets by weighing, measuring, rolling or washing and lubricating only makes sense for pellets in the lower price range.

As an example: There you weigh all the pellets and still have flyers right and left. So it can not be the weight.

A few years ago I built a test device to look at the pellets. But the most important thing is to look at the pellets while they are moving !



I would like to write this article step by step. First of all, today I will show you good and bad holes on the back of the pellet.



What can you see? Nothing.

View attachment 170678

What can you see now?

View attachment 170680

Here are some more examples of good and bad holes.

View attachment 170685View attachment 170690View attachment 170697View attachment 170700View attachment 170703View attachment 170707

Thanks, that's it for today.
NoLimits

Hello, I just came upon your post about your device. We've always believed in a similar theory and crudely tested some pellets by simply cutting the tails on angles and we observed flyers on those that were angled. Do you have any of these devices for sale? Would be interested in purchasing one if the price is reasonable. Thank you.

 

[Revoman]

BobS --=--​

You will most likely be better off using the OP's contact info a few threads up from here.
Contact: [email protected]
I don't believe that he visits AGN on a regular basis (?).

mike

 

[NoLimits]

Hello there.
I read this forum from time to time. My hand is feeling better again. Fortunately I can work a little again.
During the last months I have built a new pellet tester, new test pins for caliber .177 / .22 and .25. At the moment it is not yet available. There are still some small jobs to be done.

A few days ago I put a few .25 caliber pellets on the tester. I am always amazed.

NoLimits

 

[JimD]

It is implied but I did not see this explicitly stated. If you test for wobble and shoot groups with only pellets that don't wobble and then groups with pellets that do wobble are the group sizes consistently smaller for the no wobble pellets? I am expecting they would be but I also expected JSB 34 grain with large weight variation to shoot poorly and my P35-25 really likes them. Maybe it's there and I just didn't understand a graph or something.

 

[dgeesaman]

Runout in the pocket of the skirt definitely opens groups. That experiment was pretty conclusive but the method was too laborious (and too many went into the junk pile) for regular use. Having a fast and accurate tool like this would be very helpful.

I'm curious how to tell which pellets actually have radial runout vs. the ones that have a high spot on the back face of the skirt, which would make the head wobble around when you hold and rotate it by the skirt end. It would seem that a lack of runout at the waist and visible runout at the head diameter would be the determining factor.