Too much is never enough.
I just got back from doggin in Montana.
In 2.5 days of shooting between 2 of us. 600 rounds 17HMR, 200 rounds 22-250, 200 rounds 223, and 300 rounds of 243. We ran out. We resorted to the 44's. We ran out. I kicked myself for not bringing my 22.
I wanted to kick him for not telling me how good the shooting was. I would of brought everything I had. 270 sure. Not my pet loads, still goes bang. Slingshot, you bet.
Granted, it's a private town on my friend's family's ranch and gets worked over good once a year. By him.
Next year I suggested to my buddy, jokingly, we get a uhaul trailer for the ammo.
Like previously stated, multiple rifles help immensely for the hot --> cool rotation.