I have heard about JSB having quality control issues in 177 and 22 caliber.
How about Air Arms labeled ones? I know they are manufactured by JSB.
What do you do when you know you have a bad tin of pellets?
Doesn't matter the brand bad tin bad lot what to do?
What do you do when you know you have a huge lot of that bad tins of pellets?
How are the current Crosman Premier brown box heavy and lights?
It would be interesting to know what shooters who require extreme accuracy have to say. I do know and understand shooting one hole groups at 50 yards with boring regularity but what happens when you get a new tin, an entire lot of these that simply just don't shoot good? I mean not even close, not even touching!
Your 1/4 inch groups turn to one inch to two inches with fliers off the paper.
No getting those boring groups any more even after sorting weighing and sizing.
Even wasting your krytech or bicycle chain wax lube on them.
A little improvement but frustrating thinking there might even be something wrong with your gun. Not even half inch groups after all of that tedious time consuming effort and frustrating stressful work holding your breath or breathing through the side of your mouth while weighing them.
Thank you for any and all input regarding this subject. You feel my pain and now I want to feel YOUR PAIN and your solutions.
HA
So far I haven't had a bad batch of pellets, I may just be lucky that my barrels aren't very fussy.
Are you able to compare the two tins, old vs new at the same time? Shoot them both at distance and compare. It's possible that something else may be going on.
Where did you buy your new pellets from? Some companies may be willing to help if it's a bad tin.
Hope you don't take this the wrong way, because I will start with the obvious:
Pellet rifles operate at the border of the energy spectrum.
ANY and ALL variables in the shape/weight/CoG location, etc. will play a role in the overall accuracy.
Furthermore, it is quite difficult to make pellets by the millions and make them all exactly the same, for the price we like to pay.
JSB is NOT having QC problems, whatever you hear to the contrary is simply a difference of opinion.
ALL pellet batches are tested, in the guns that the plant has for that purpose, as the production is going on, JSB knows even before finishing a programmed run (limited by the billet mold that creates the slug that is then extruded into the wire that then makes the little balls that are then turned into pellets) if the trend is the correct one or not, then comes sorting. And the accuracy requirements are quite demanding. Only then a batch is finished and released.
Those batches that do not meet the requirements may have several different futures, if they are WC's, then they get labelled on the economy/practice/junior classes. If they are truly bad, they get melted and the material is reused.
If they are domes, most of the times they get melted.
EVERY "private label" pellet JSB makes has its OWN set of requirements. AA has one, NORICA has another, etc., and they are not the same. It is a contract between private companies that take decisions based on their own respective markets. In the case of AA, the skirt punches have a slightly different design.
If you still have a few of the "golden pellets" then I would suggest you get a pellet gauge, a real accurate scale and some accurate calipers, a plate of glass; measure and roll at least 50 of the "golden" ones. Compare them to the results of the new batch. If something is radically different, then talk to the retailer that sold you those pellets and let them know the differences you found.
SOME retailers will accept all unopened tins for a "restocking fee" and shipping, sometimes that restocking fee is 0.0, but every retailer sets its own policies, so talk to the retailer you got them from.
You don't tell us what gun it is, what barrel it is, nor caliber; so I cannot speculate any further, but I would not skip trying to tune out the harmonics of the barrel, or tune the MV to the needs of the particular batch of pellets.
HTH
HM
I took the time to get out the measuring tools and they are high grade measuring equipment including a mic. The tins in question are the Heavys JSB Reds and the Gray (old) this is the second time this happend to me, the first time I thought it was my gun being problematic specifically with the gray tins then later had acquired more of that caliber to be able to come to the conclusion that the pellets are not the same when comparing red tins to red tins. I only recently crossed tested the old ones which I labeled JUNK REJECTS with the red tins JUNK REJECTS and the junk gray tins were a little better shooting than the newer ones. I would rather not deal with the bad pellets and did not want to throw them away thinking maybe someday someone will make a DIY pellet making device which would allow me to recycle them. I have used a good amount for barrel seasoning after cleaning.
Guns tested were among myself and a good number of friends were all in 22 caliber
before I had to move. I can not speculate the specific tunes or velocity because majority weren't mine. But I think this would be more than enough go to by.
Specifically guns which prefered JSB Heavies.
Edgun R3m normally grouped 1/4
Kaliburgun Cricket standard 3/8
FX Bobcat MK1 3/8
Taipan Mutant short 3/8
Daystate Air Wolf MCT 1/2
AA S510 Xtra FAC 3/8
BSA R10MK2 1/2
RAW HM1000 3/8
USFT MAC1 Hunter 1/4
None of them could achieve the typical groups with the suspect pellets.
NOT EVEN ONE of them. So in this case it is not only in my head. The inch to two inches were my guns in particuar and a handful of the others. Best was about an inch which was a MAC1 Hunter. We were counting the fliers and all. So some could have 8 shots within 5/8 and 2 more open up to 1+ to 2+ inches.
Even switched back and fourth, good groups bad groups, so there was a difference.
Everyone brought their best tins as the base.
I do want to note that I haven't had any issues with the other calibers of JSBs knock on wood for now. That is why I ask about the 177 before I go and buy a lot. Normally use other brands of pellets for that caliber. Where I live now, it is unfortuneate that I can only safely shoot 177 caliber for now or have to drive really far to shoot.
The pellets were purchased from multiple vendors stacks at a time most did not have a designated lot number but were usually purchased by bulk. They were not just recently purchased, it may have been few years but haven't used for a while. This happened about over a year ago when I did have like minded shooters living where I was. Not anymore. Recently joined so this info would be JSBs reds dated back few years. Only got to post this info yesterday.
One of the other shooters had issues with H&N but I can't recall which one.
We all know about Crosman but how about the current brown boxed heavy and lights?
I do acknowledge that the vendors are only the middle men and have nothing to do with any issues with accuracy or consistency or qc. I have no recourse to return or exchange because time has already passed but I know what to do in the future thanks to HM.Kerndtc
CA
Thanks, H.A.!
Within the realm of pellets, probably the pellet that is most critical of rifling, choke, uniformity of bore, and crown is the 18 grs. JSB Exact Jumbo Heavy.
The 16 grainers are more "noble" and less fussy because they shorter; the Monster's and the Beast's are usually shot only in high power airguns that have a modicum of quality in the barrel, the Express's and the RS's need to be shot under the 850 fps mark in most cases to get good accuracy.
But the 18 grainers have always been VERY picky about the barrels they like.
It follows then that batches made within years of manufacture are, quite candidly, a different pellet.
And even pellet design does not remain static. JSB has re-designed the Monsters, PRECISELY because some barrels of undoubtedly good quality (Lothar Walther) would simply not shoot them. With the change of mass distribution, it has been found (so far), that as long as the gun is powerful enough to stabilize the pellet and the rifling is within reasonable quality parameters, they shoot a little bit better in most guns, and what is more important, in MORE guns.
Now, if you have a BUNCH of 18 grains "preforms" (pellets that you cannot use), and if you are somewhat handy and are willing to learn a completely new hobby that is fascinating in its own right, perhaps you can look into this:
HTH
HM
SOMEONE from another forum, won't say which one but the one that got the action, is experiencing the same accuracy problems with 22 JSB Heavies. Others have chimed in to comment that the heads are smaller these days.
I sure hope JSB QC does'nt take a dive and be another Crosman ammo statistic.
Such a real shame because JSBs were FAN-TASTIC when they first were introduced.
HA
