Need cast bullet loading data

[DonT]

Need some loads so 150 to 180 gr. gas checked cast bullets to go thru my new bolt 300 whisper..

Any suggestions both sub and super....

Thanks..
DonT:uzi2:

[sten668]

Don,
Try 6gr of AA#7 this is just subsonic for me with a Lyman 311291 made with WW. i seat them out just to bump the lands of my 788 with a 17.5 in pacnor.