A buddy of mine shoots them fairly frequently in his 22-250 (Savage) and gets good results. He gave me a couple dozen to try out and I got some really good groups but only at top end loads that were too hot for my liking. I only had a chance to try a couple of powders so I'm sure they could be nice shooters with more work than I put into them, I don't remember if they were 50 or 55gr, 55 I think.
Pretty much any bullet coming out of a 22-250 is going to blow up critters real well, these seem to shoot pretty well also and they are cheap. Worth a try for sure. I think they are Remington made bullets but not sure.