thanks for all the tips guys. those were once fired factory loads. seems to be brittle according to most posts.
not sure if i bought those at wal-mart or not...
did buy the laptop from wal-mart though that i posted from.
did shoot some more federal 180s with regular brass and they didn't split any.
guess the winchesters are disposable like blazers. i like the silvertips so i guess i'll have to start reloading as well. oh, well what's another grand for more equipment...........gun)