New JSB Exact Premium .30 Caliber Pellets

Hard Air Magazine readers first saw information about the new JSB Exact Premium .30 caliber pellets in our report from the 2025 Pyramyd Cup.

Now we can take a closer look at this new product. We’ll also understand what that “Premium” designation means and whether it’s important.

First, the obvious. These new pellets are supplied in a screw-top tin with completely new packaging design. There’s a new JSB logo, as you can see, with the striking overall black color to both the upper and lower parts of the tin.

The pellets themselves are a traditional Diabolo design with domed head. They look nicely-finished, as we can see in these close-up photographs.

Supplied in 70-count tins, these new 44.75 Grain pellets are carefully protected from shipping damage by foam above, below and around the pellets. Very good!

So what’s with this “Premium” designation?

JSB makes it clear on the tin that “Premium” means carefully-selected weight. They say that every pellet has to be within plus or minus 0.15% of the nominal 44.75 Grain weight. That is, with an Extreme Spread of 0.30%.

The graph below puts this claim into context. It shows the weight variability scores from no less than 51 HAM pellet test reviews.

HAM specialist Pellet Tester Doug Wall has measured every pellet tested – all 2,500 of them – using an amazingly-precise (and expensive) laboratory-grade Sartorius milligram balance that’s able to detect the weight of a small snowflake. It’s that precise and so is he!

HAM pellet reviews use closely-guarded algorithms for their scoring. However we do use an Extreme Spread system to allocate percentage scores for weight variability.

What I can reveal is that JSB’s claimed plus or minus 0.15% of the nominal weight would fall into HAM’s 100% score for weight variability.

As we can see from the chart above, only four out of the 51 pellets and slugs tested to date by HAM have received a 100% score for weight variability. That’s just 7.8% of the total.

So – yes – when JSB claims premium consistency for these new pellets, HAM agrees with them!

But can JSB deliver on this promise of quality?

Yes, we think so. You see – out of the four 100%-scoring results for weight variability in HAM testing – one of them is from JSB.

The HAM Gold Award-winning JSB Exact Premium Diabolo 8.44 Grain .177 caliber pellets scored 100% for weight variability. And you’ll notice that they include the term “Premium” in the product name. JSB knows how to do this!

So HAM believes that these new JSB Exact Premium .30 caliber pellets really will deliver the consistency they claim. We plan to test this out in the near future…


The post New JSB Exact Premium .30 Caliber Pellets appeared first on Hard Air Magazine.

 

[Scriv]

Nice! I love it when a company steps up their game. Well done.

 

[wolfmangreg]

JSB lead - soft, slow to foul a barrel, & easy to clean out if/when it does - with the weight consistency of the Chinese pellets, would be very welcome addition to my pellet cache.

Will likely be obscenely expensive, but would buy them for match use only.

Hoping they extend this to the other calibers, but not holding my breath. When it comes to airgun competitions (at least in the very large & influential American market), bench rest (specifically a select few major comps) is driving the train. And .30 is clearly ruling that kingdom.

 

[SILENT SQUIRREL]

I really like it when a company remembers how good their product used to be.
And then reintroduces the high quality as something special, new, and expensive

just my 2 don't-give-a grams
Edward

 

[Solo1]

Do we have any idea when and where we might be able to try these?

 

[Danman]

Making consistent weight pellets shouldn't be too hard.....im guessing they'll be priced the same as the regular pellets. But of course they are only 70 in a tin, not 100 lol!
Two things immediately spring to my mind...Firstly what happens to the culls that dont make the cut? Hopefully they are not slated to fill the tins of the ordinary 44gr .30 pellets! (Perhaps the build process is just better and thats not an issue)
Secondly, ok JSB has our attention....but will they keep it? Will the batches of these pellets be similar quality & consistency in 6 months, a year, etc?
Not a pessimist just a realist. Overall not a competitor but this should highlight to all the pellet manufacturers that accurate sized/weighted ammo is important and should be for the better of airgunners.

 

[ctshooter]

I really like it when a company remembers how good their product used to be.
And then reintroduces the high quality as something special, new, and expensive

just my 2 don't-give-a grams
Edward

I have to agree with you. Start selling lower quality pellets for 5 years and then suddenly come out with hand select premium bs for sure. Sell what they claimed to be selling for years now as some expensive new product. Please.

And - you know what this means for the rest of the .30 cal pellets cans, right? If the best are being put in Premium can - then you are getting more junk in the regular. How do I know - Electrical Engineering class.

A resistor comes in tolerances: 1%, 5%, 10% and 20%.
Anything under 1% goes into that bin. So what does that mean you can expect for the rest of the batches?
5% = 1-5%
10% = 5% - 10%
20% = 10% - 20%

 

[pan60]

the way I read this the are just hand selecting a particular weight for the premiums not sure I see how that takes away from the quality of the others? except hey might be lack a particular weight spec?
I shoot the JSBs and even though I might want a tighter weight tollerance I like the JSBs.
my guess would be they have multiple machine making pellets he weights will very from machine die set to die set everything goes in one bin then into the tins and the weighs are not consitstant so if they pull the premiums off one or may two closely mach die sets them that would have no baring on the quality of they others they will contenue tone what they have always been.

unless I am miss the boat somewhere along the way?

 

[ctshooter]

@pan60 - I hear what you are saying but I don't fully agree. JSB is no longer the top tier pellet company with no competition in quality and price. They need to do better.

They do make some pellets better than other. I still shoot the JSB 18s as they are good.
The JSB 15s usually fall in a 1 - 1.2 grain range - which is silly for a pellet that weight.
The JSB 45s I have weighed everywhere from 44.2 up to 45.8 in a tin.

It's almost like putting a bandaid on lower quality production. We'll just sort out the best and sell them for more.

 

[SILENT SQUIRREL]

I have to agree with you. Start selling lower quality pellets for 5 years and then suddenly come out with hand select premium bs for sure. Sell what they claimed to be selling for years now as some expensive new product. Please.

And - you know what this means for the rest of the .30 cal pellets cans, right? If the best are being put in Premium can - then you are getting more junk in the regular. How do I know - Electrical Engineering class.

A resistor comes in tolerances: 1%, 5%, 10% and 20%.
Anything under 1% goes into that bin. So what does that mean you can expect for the rest of the batches?
5% = 1-5%
10% = 5% - 10%
20% = 10% - 20%

Resistance is futile
Ohmmygod

 

[pan60]

I wont argue they should do better but I could say the same for others. : )

 

[Solo1]

I wont argue they should do better but I could say the same for others. : )

Well the thing is all this is catering tto a small % of shooters the big bench events and not many shooters have been shooting jsb because of the inconsistency at long range the guys shooting 50 or less don’t notice those inconsistency’ s like those shooting 100 and aea ,zan,jts etc have forced jsb to pick up the pace

 

[Hoppalong Doc]

Benjamin Single Die Pellets .22 cal shoot very well in my TX200. The lot number is posted on each tin which, I suppose, is meant to hold Benjamin accountable for their product. I haven't weighed each pellet out, but they appear to be quite consistant, and shoot very consistantly. I orpdered 8 tins out these pellets initially, then patiently waited for a follow-up order of 12 more tins. I also ordered 8 more tins of JSBs for back-up. I really don't know why, as I've still got several ammo cans full of miscellaneous, un-organized pellet tins. I suppose that I'm just a bit parinoid, thinking I'm just preparing for the lead apocalyps. Hey, at least I'm perpared. Orv.