Two molds for 300

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Hi guys, I'm getting myself geared up for casting and loading for my 300 blk AR and I've got two molds already that I'm thinking of using. Just wondering if anybody has any experience with either of these. I plan on loading supersonic with the gas check, looking to get a nice, accurate hunting/paper punching load.

First mold is the NOE 311-180-RF, Hi-Tek coated. It works really well in my K31 (which I think it was designed for), not sure how well it would feed in an AR.

The other is the Lee C312-155-2R also Hi-Tek coated. Shape looks like it might have an easier time feeding

Any input is appreciated