FX Hybrid/RMR .22 actual OD?

I'm interested in getting some of these slugs but want to find out what the actual size of them are. From what I see is .217 but the JSB KO MK2 say .216 and the body are .2175 and the skirt is .226. Are they actually .217? I'd imagine someone would have measured them but can't find anything.

The ones I have measured .217 with el-cheapo calipers.
 
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Thanks guys! As long as they are true to spec I'll be giving some a try. We'll the RMR "Seconds" lol not gonna pay premium for the FX
There isn't a lick of difference between the FX and the RMR's and I mean ZERO, I've weighed them, measured them and they are dead identical.