They want to keep California Condors from ingesting lead fragments from the gut piles of animals shot by lead bullets...
The problem with all this is that to legally shoot a ground squirrel, I need to use a copper bullet or other non-toxic projectile.. Which is nuts!!!
I've spent some time chronographing 7mm Weatherby loads (24" barrel) and there is no comparison to the 270. The WBY will push 150s over 3200 and 140s over 3300, easily. In the most common 22" barrel, a 270 will push 130s 3050, 140s 2900, and 150s 2800. Pull the scope off that 27 and put it on the 28.
"Well, but no such non-lead rimfire ammo exists in the marketplace. The Defacto effect is that no one can legally shoot ground squirrels in much of California anymore."