[lil dinamo]

Steel, Blue Dot or Longshot as a last resort.

 

[lil dinamo]

I just looked it up and 800x is no longer being manufactured. Would hs-6 be a suitable replacement when using steel shot?

IMO not really, but Precision Reloading has some load data for both HS-6 and 800X with the TUWSBL28 wad.

https://www.precisionreloading.com/docs/uploads/TUWSBL28%20Load%20Data%20-%20Website%207-28-2022.pdf