JSB LOT NUMBERS

[Retayshooter]

I know it is an old thread but it is still valid. 

I bought and received 10 tins of pellets and it was from two different batches. I did not ask for any specific batch / lot. The first tin I opened was shooting spot on. The second was from another batch and the grouping opened up and I could not get tigher groups as with the other batch. From then on I ask for specific batches I know is working.

 

[elh0102]

Where is the die or lot designation located on the tins you buy? My old ones had a red sticker with that information, but I can find no such information on any JSB tins I have purchased in at least a couple of years. 

 

[Retayshooter]

It is a sticker on the bottom of the tin. Reading back in the thread it seems that in the USA some importers order tins without the stickers. Here in South Africa it always has the stickers with batch info on.

 

[Retayshooter]

Here is a little explanation from JSB on pellet weight and size differences...please enjoy.

JSB

Discussion on different weights and sizes of the same pellet

Regarding the differences in weight. The factory limit is up to 2.5% difference. Our test shooting proved that such a difference has no influence on accuracy of pellets.

Regarding the shape differences. I always try to explain to our customers the following… The dies (manufacturing tools) are produced in batches. There are production tolerances on all dimensions and angles of these tools. There are several components which make a set of tools producing the pellets inside our machines. Each set is specific and may differ slightly one to another (because each of the parts has its production tolerances).

Our goal is to create such a sets which will produce the most accurate pellets not as much uniform as possible. If we keep the pellets totally uniform we may not reach the best possible accuracy of the pellets which we definitely want. We prefer some differences between batches but with best possible accuracy. For identification purposes we mark them on the bottom of the tins with batch numbers and never mix it together.

Each gun is specific and may get better results with one batch then other. So the TOP shooters usually test more batches and then buy larger amount of the one which is the best for their gun.

Despite that all batches should meet our quality standard (which is mentioned on our websites) from any gun…

 

[elh0102]

I just peeled off the big sticker with the bar code, and there is definitely nothing under it. As someone mentioned above, I expect the batch ID is on the case, but not the tins. 

 

[Retayshooter]

Like I said, in the USA some import it without batch / lot numbers. Take it up with them. Why would I say we receive it with the batch numbers on the back of the tin if it is not so?

 

[bigHUN]

In Canada I cannot recall seeing sticker on the individual tins but a pack= box of five tins have a sticker.

Not long ago I ordered some MK1's from ZAN and every tin has a sticker.

But I don't even know how or what to read from these numbers...

Anybody can elaborate? In example the sticker from a picture one post above?

 

[davyboy30]

In Canada I cannot recall seeing sticker on the individual tins but a pack= box of five tins have a sticker.

Not long ago I ordered some MK1's from ZAN and every tin has a sticker.

But I don't even know how or what to read from these numbers...

Anybody can elaborate? In example the sticker from a picture one post above?

I don’t know if anyone has already explained this but apparently, the first 2 numbers are the die number (batch number?), the next 2 are the employee number, followed by the Quality Control employee number and finally the year of manufacture.