AA or JSB

[12/200]

They are "probably" all made in the same factory, but each will vary slightly with composition of lead/alloy content, slight differences in weight/head size/pattern etc. which will depend on the Di it is cast from and the makers specification requested. As a Di wears this in turn changes the pellets size/shape etc, so they are all actually in a constant state of flux to a degree.

The only way to really know is to try some and see, but remember the batch number is as important as the Manufacturer and "model" you select, you could find a good tin of AAFD for example and the next tin you buy is not so good as it's from a different batch, so a lot of people try a few tins, select the best, then buy in bulk of that batch number form the base of the tin.

As an example - I've attached a test I done with half a dozen batches of the same pellet - JSB Exacts 4.52, but all of different batch numbers - it's very enlightening to see the difference there is batch to batch - or as people experience - tin to tin?

[IMG][/IMG]

This also explains a lot about manufacturers returning guns under powered, the difference between one batch and the next can be a full FPE, so it depends where in the power curve it's tested and also if they are using an "efficient" batch and you are not - or vice versa?

James

my wolverine went back as running just over 10 f it came back with a report & test card alleging 11.5ft + a few 8.4 pellets, i tried theses getting just about 11ft. I sold both DS rifles

[hmangphilly]

Where on earth did you hear that??

I haven't thrown a single JSB away for having a damaged head/skirt in hmmm....8 years or so.

Tight Git

[MikeHW45]

I've just had a conversation on another thread with regards to AA and JSB and I believe they are the same pellet differently branded. "Rickenbacker" kindly posted this link explaining the batch numbers and sizing etc. https://airgunaccuracy.wordpress.com...ers-explained/ The accuracy difference could merely be down to pellets being cast in a different die as opposed to being AA or JSB

[ChrisC]

Tight Git

It's a Yorkshire thing.

And also maybe proof that almost all damage is down to transportation. Mine have been delivered by hand from the JSB factory by the Czech lads/lasses coming over for the HFT worlds.

[Gary C]

AA all the way ....same factory ...same lead batches....same staff...
but the AA are hand sifted on the instruction of AirArms....so better quality control ...better pellet ...but you pay a bit for you.

Then they pinch the skirts. Just to show they have been tested. No better than JSB just a badge added

[SuffolkRifle]

To put a couple more 'brands' into the mix, both FX and Falcon Accuracy Plus are JSB made.
Just had one gun go 'off' a batch of JSBs, not sure yet if it's the batch or the gun, but had poor results on Sunday using a different gun, with that particular tin of pellets, will be testing later today to check. Bit of a pain really, as it was the first tin from a new sleeve.

[neil180]

I've just had a conversation on another thread with regards to AA and JSB and I believe they are the same pellet differently branded. "Rickenbacker" kindly posted this link explaining the batch numbers and sizing etc. https://airgunaccuracy.wordpress.com...ers-explained/ The accuracy difference could merely be down to pellets being cast in a different die as opposed to being AA or JSB

I have just read that airgun accuracy article. Jesus! I would never have the patience in a million years to lay out hudreds of pellets to form a graph etc.

I am glad I don't shoot FT. I manage the spnners in my garden with pretty much any dienumber I reckon....