So after a little looking.......it seems like Ruger is all 24" in magnums. The nice magnum rifes that CZ are making are all UNDER 24" (23.6"). Remington seems to be about 50/50 on their models (XCR II is 24" and CDL is still 26"). Browning seems to be 26" across the board in magnum calibers.
Interestingly enough, most of the high end production/custom rifles seem to stay with 24" barrels in magnums. (Nosler's rifles, Cooper, ect.).....and also Hill Country Rifles in their custom rifles.

Interesting.....