Yep, that's what I was wanting, thanks guys!!!

My Knight Disc groups the Barnes MZ 300gr and the 250 SST very well...Both are longer bullets...

It doesn't like the .452 XTP 250gr or 300gr...Both are shorter than an inch, probably aren't 3/4 inch...

That's why I'm thinking the .429 300gr XTP will do well...It's not an inch long but it's close...