Trenier has JSB 18.13gr .22 5.53 Head Size

Great! JSB hasn't modified those pellets recently, so now that they are done making the .25 King Heavy and only make the Mk2, I suspect they'll be messing with other popular and successful pellets next... .22 JSB 18.1 and .30 JSB 44.75 are prime candidates for "improvement"... Just as they did over a year ago with the very successful .22 RD Monsters. 
 
Great! JSB hasn't modified those pellets recently, so now that they are done making the .25 King Heavy and only make the Mk2, I suspect they'll be messing with other popular and successful pellets next... .22 JSB 18.1 and .30 JSB 44.75 are prime candidates for "improvement"... Just as they did over a year ago with the very successful .22 RD Monsters.

Seems the 18.13’s have changed too since my last order, not sure if performance has changed as well, but a fair amount of flashing on a few in the first tin, and a different skirt depth if I’m not mistaken. The new H&N 18’s seem to be working well, so I now have another choice at least. 
Scott
 
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yup, different in these as well…..shorter skirt and less damaged skirts on the newer batch, I wonder if that was the reasoning. The new batch may not be grouping as well, but I can’t say for sure yet.

Scott