how do those groups compare to the xtp's
The XTP groups were very similar to these
Karl. It would be hard to call one better than the other without side-by-side shooting on the same day.
However, both the 200 grain XTPs and the 180 grain Gold Dots clearly shot a tad bit better than the 41 caliber 210 grain Gold Dots. I wish Speer made a .400/200 grain Gold Dot with the same construction as their 41 caliber hunting bullet.