I tested out wolf match extra,, Lapua center-x, and midas + yesterday. The members here have posted some pretty insightful stuff so I figured I'd contribute some so I feel less like a free-loader.
Top row (right most): wolf match extra 40gr (ignore that flier in the first one, that's user error)
2nd row: Lapua center x 40gr
Bottom row (left most): Lapua Midas + 40gr
All of these are 10 round groups at 50 yds in a climate controlled indoor range. The test was completed in approximately one hour. I shot 50 rounds (not shown) of each ammo before shooting groups to clear out anything from the previous test. All groups were shot from bench using a rear bag and bipod. Barrel is a bull 22” lilja match in a sako quad action. Heat was not an issue. Pulled a couple but that’s life. Still plenty of data. I have my own interpretation of this test but I'll withhold so I don't lead your own conclusions.
Also, it appears I need training. I hope you find this useful. Enjoy.