I would like to figure out a cast bullet load for squirrel hunting. I have 222, 223, and 222mag rifles to choose from. Want to load cast and lower velocity and will keep distance to 150yd or less.

Anyone have any recommendations on bullet molds and loads for this situation? I'm thinking I want to stay below 2500fps. I'm not against building a new rifle for this as well. Would like to keep it in a small case with low powder consumption. I keep looking at the 22TCM cartridge but I have never heard anything good on accuracy.

Any help would be appreciated.

Thank You