How do you tell the pellet head size?

I have a few tins of JSBs and H&N in .22 cal. I "think" when I was buying from PA (a while back, checked out as a guest), I ordered them in 5.52 head size, but not so sure, esp about H&N barracudas, which are available in both 5.52 and 5.53 on the PA site currently.

Tins just have 5.5mm printed on them. Is it possible to tell the head size from the tins?

Another question, where do you buy the JSBs in 5.53 head size?

Thanks!
 
The H&N Barracuda Match will show the head size on the back of the tin above the UPC code (see left tin in picture below). Barracuda Match pellets are available in 5.51, 5.52, or 5.53mm. I'm not 100% certain but I recall the regular Barracuda (non-match) only being available in one size which is 5.50mm.



You can buy the 5.53mm JSB pellets from AOA but at the moment they are completely out of stock of JSB 15.89 gr and 18,1gr pellets. I was told the next shipment won't be arriving until the middle of May.