WTB or WTT for 50 cal gas checks

[crashdummy]

Needing gas checks for the Lee 50 cal 440 grain bullet.
Prefer copper but aluminum will be OK.
thanks for looking

[jeepyj]

I don't know if it helps but when I was looking the only place I could find them was from Al over at NOE moulds.

[khmer6]

I been using gator checks from sage in the 500sw powder coated lee mold. H110 burns hot