Is JSB Heavy MKI now JSBHeavy MKII?

They’re just clarifying the difference. They didn’t say you’d receive what you order

Lets not drop this until we get a resolution. I'd say they COULD say "JSB no longer makes King Heavy (Mk1)", OR they could say "yes, we messed up" and will start putting the correct pellets in the correct tins. Hopefully its the latter, since MANY guns shoot better with the King Heavy than with the Mk2. I think most FX guns with the Pellet A or Superior liners shoot the Mk2, since the liners were designed around those...

I recently bought some JSB Heavys from Jeff at TrenierOutdoors.

When I opened up a tin to see,

I also ended up with MK2's. 

Jeff said shoot em, and he'll refund if they don't work.

Jeff also emailed JSB's reply to him about this whole Heavy vs Mk2 ordeal. 

I will shoot them next wknd, and see if they shoot as good as the Heavys out of my Taipans and Huben.

I've enclosed his email below.



"Hello Terry,

Yes, there is some confusion as of recent with the MKI and MKII. Below is the message from JSB. I will call a bit later, but figured it was easier to relay the written message rather than try to explain on the phone. I’m glad to hear they thickened the skirt for less damage issues.



It seems there is a misunderstanding among our customers about the difference between the MKI and MKII. The only difference between the two pellets is the outer diameter of the skirt. This dimension on the original MKI pellets are 6.68 - 6.70 mm while the MKII pellets measure 6.58 - 6.60 mm. 



We made this change because the original MKI pellets would not fit some of the rifle`s magazines. 



The thickness of the skirt or the inner skirt shape cannot be used as a guide to identify MKI or MKII pellets. There can be batches of thinner and thicker skirts in both types. Some time ago it was an identifiable visual and people would tell the difference by the skirt thickness, but now both skirts are thick, (in the MKI and MKII (because the thicker skirts are much less easy to damage.



Best regards, 



Pavel 





Thanks,

Jeff



Trenier Outdoors

16626 Hawk Rd

Sparta, WI 54656

www.trenieroutdoors.com"



Good on Jeff at TrenierOutdoors,

Bad on JSB.

Isn't JSB not understand that's what people are talking about mainly? Are the wider skirts not necessarily the thickness of them? That's what people are having issues with more so is the skirts aren't wide.

The note from JSB is part of the Big Lie. The “Mk1” I got had the EXACT same skirt OD as the Mk2s. I bought 4 tins of each. Returned the fake Mk1s to PA. I encourage everyone that receives Mk2 in a Mk1 tin to return them. But first measure the skirt OD. They will be 6.60 vice the 6.68 that they should be. 
The lie continues. Keep returning your pellets. The accuracy difference in polygonal barrels is night and day. 

I have the original Mk1 and Mk2's in my stash. I even posted on this subject on page 1 of this thread with pics and dimensions. The proof of the truth is there for JSB to see. Their response as noted above is...well lets just say it's inaccurate at best. I'm not much on joining, but I have to agree with centercut on this. JSB, needs to step up and get this right. My guns are tuned to shoot the mk1, have tried mk2 and dont like them.

Together we are a force and voice that JSB would be wise to listen to. You listening JSB?

GIVE US OUR MK1'S!!!!! PLEASE!

There, I asked nicely...thank you  

Just got my refund for the four tins of Mk2s that I received in King Heavy (Mk1) tins. I asked the question below. Unfortunately it is a roll of the dice, that is, IF they even make the REAL Mk1s anymore... Keep those returns coming in!!!

Me:

I'm wondering if there is any way that the actual pellets in the tin can be checked prior to shipment. Seems JSB is sending out Mk2 in the King Heavy tins, and we're all getting the wrong pellets than what we ordered...

PA:

Hi Michael. 

Unfortunately, we cannot open the tins and check them like that. I'm sorry about this inconvenience. Please let me know if there was anything else that I can do to help.

Thanks.
Pyramyd Air

If I were management at PA, I would open a few tins of the King Heavy from each case? box? or however they are shipped. If they aren't what I as PA had ordered, I would send them back to Predator International. Eventually this will hurt someone's wallet, which is really the only incentive JSB has to change their poor quality control practices.

Anyone have good luck with H&N 30gr. If they work? H&N are much more consistent in dimensions and manufacturing.

I’ve been lucky and the H&N 10.6 shoot in my .177 Raw’s with poly barrels

I doubt it would make a difference in sales for JSB, even if they do shoot, but might help in sending a message that their not the only game in town!, They have the worst QC of any manufacturer I know. 

I know I'm going to be trying the H&N 18gr soon as they arrive tomorrow and if they perform at all like the JSB 18gr I'll be switching.

Well it's nice JSB made the priority to fit in more magazines over accuracy. IMO It is going to be too expensive to keep two SKU's going with so little difference. I don't see it happening in this "anything we can produce will ship against back orders" market. We all know the ones that fit in the most magizines will win. This will be a short transition.

Unfortunately, disgruntled old users are easily replaced with new users in this seller centric market where everything is sold before it is produced. When product sits on the shelves it becomes a more customer centric market. 

Yeah, I know what you mean... But if the retailer orders items from the wholesaler, and the retailer receives the wrong items, shouldn't the retailer reverse charges to the wholesaler and send them back? This then becomes a Predator International problem, but he can then do the same to JSB, or am I missing something?

Yeah, I know what you mean... But if the retailer orders items from the wholesaler, and the retailer receives the wrong items, shouldn't the retailer reverse charges to the wholesaler and send them back? This then becomes a Predator International problem, but he can then do the same to JSB, or am I missing something?

Click to expand...

Maybe I'm cynical, but I think your returns are gonna get used to fill somebody else's order instead of going back through the supply chain to the manufacturer. Not trying to slight or slander PA in any way here, just makes more sense to me, from a logistical standpoint. 

Yeah, I know what you mean... But if the retailer orders items from the wholesaler, and the retailer receives the wrong items, shouldn't the retailer reverse charges to the wholesaler and send them back? This then becomes a Predator International problem, but he can then do the same to JSB, or am I missing something?

Click to expand...

Maybe I'm cynical, but I think your returns are gonna get used to fill somebody else's order instead of going back through the supply chain to the manufacturer. Not trying to slight or slander PA in any way here, just makes more sense to me, from a logistical standpoint.

Click to expand...

Aloha,

I was just thinking the same thing, I bought some pellets 8 tins of MK1 & 8 tins of MK2. I checked the pellet diameter and they measure the same @ 6.59-6.60 I sent an email to the place I got the pellets from and they sent back a email which I felt was an excuse. I have other guns that shoot MK2 accurate so instead of dealing with shipping the pellets back from Hawaii and someone else having the same problem when put back on the shelf for sale, I'll just keep them. BUT it doesn't correct the issue of not having MK1 which I ordered, its BS that the reason for the change in skirt diameter was that it did not fit in certain magazines, what about the magazines that the MK1 did fit?

Aloha,

Keone

Yeah, I know what you mean... But if the retailer orders items from the wholesaler, and the retailer receives the wrong items, shouldn't the retailer reverse charges to the wholesaler and send them back? This then becomes a Predator International problem, but he can then do the same to JSB, or am I missing something?

Click to expand...

Maybe I'm cynical, but I think your returns are gonna get used to fill somebody else's order instead of going back through the supply chain to the manufacturer. Not trying to slight or slander PA in any way here, just makes more sense to me, from a logistical standpoint.

Click to expand...

Aloha,

I was just thinking the same thing, I bought some pellets 8 tins of MK1 & 8 tins of MK2. I checked the pellet diameter and they measure the same @ 6.59-6.60 I sent an email to the place I got the pellets from and they sent back a email which I felt was an excuse. I have other guns that shoot MK2 accurate so instead of dealing with shipping the pellets back from Hawaii and someone else having the same problem when put back on the shelf for sale, I'll just keep them. BUT it doesn't correct the issue of not having MK1 which I ordered, its BS that the reason for the change in skirt diameter was that it did not fit in certain magazines, what about the magazines that the MK1 did fit?

Aloha,

Keone

Click to expand...

And what about the fact that they made only less than 1/1000th change to get them to fit. I've had a ton of pellets that were off by 1/1000th and they still fit in my "tight" mags and shoot just fine. I think the "didn't fit" is just an excuse.

And for all the stir this change has made, it would behove the manufacturer to go back to the old dies they must still have on a shelf somewhere and make what the shooting community really wants.

Crusher

The "wouldn't fit in some magazines" is puzzling. I wonder which magazines were problematic(if any)? 

Maybe someone has 1st hand experience with these pellets "not fitting"?

They fit fine in FX and Daystate mags. 

I have noticed the TRUE MK1s chamber tighter than the MK2s in my guns.

My issue is the change in overall length, ref my post on this thread on the first page. I reposted below.

There is .22mm difference on overall length, the MK1 being longer. It was my understanding that the original MK2 was made shorter in order to better fit some mags.

Edit: The original .25 cal 25.39gr JSB is 7.70mm in length. So the MK1 was significantly longer (1.27mm) and presented somewhat of an "overhang" issue for some magazines. Assuming my memory serves me accurately. 

Mk1 8.97mm

Mk2 8.75mm

Lengths are different, as well as the depth of the skirt.

MK1 ON LEFT.

Here is the back of the tins.

Hope this helps.

Click to expand...

Saw on IG that a new shipment of JSB have arrived at PI. I asked if he could check if JSB was still filling .25 King Heavy tins with Mk2 pellets? Even though he is obviously aware of the issue, he just couldn’t be bothered…. Sad…. So the Big Lie continues.