USA made and under $20. Attention well deserved IMO. They do custom size holes, no extra charge. Ex: Got .550" for 7X57R.

Tyler Texas

Nice, and a reasonable price as well.

Looks like those are actually solid aluminum. If so, they can't be making any money.
I was expecting billet, plastic.

The skeletonised version may work better. I got a 308 case stuck in the tray when I spilled BLC2 around the case.

I can't find the skeleton ones anymore. He was a member on AR.

Just get one with a powder grains breadth of clearance plus .002.