Is this a winchester bullet or is it sold under another name. That bullet has shot consistant sub-moa groups out of a TC encore, much better than my loads so far. I'd like to try load my own though.
I'm pretty sure that you won't be able to find them. BUT, if you like the way they perform I'm pretty sure that sierra makes a 120 grain hp hunting bullet that will look very suspiciously like the older winchester bullets. They shoot like a house of fire in 270 and 30 cal although I've never tried them in the 257 caliber. I'd give them a run if I was you.