6.5cm Barnes LRX - crimping question

I have just loaded some 6.5 creedmoor using superformance powder and Barnes 127gr LRX. I have used the Barnes reloading data which says O.A.L 2.75”. The mouth of the case is over one of the cannelures. Until now I’ve been using 143gr ELD-X and I normally do a light crimp with the Lee factory crimp die. Can I crimp over a cannelure?

A have loaded up to 45gr of superformance, which the data says is compressed but I can still hear a bit of movement when I shake. The data is also for the 130gr TSX with O.A.L 2.70”. Could it be that that would be compressed but the 127gr at 2.75” is not?

Any help much appreciated.

Thanks
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