I understand it takes a long action so why not just a .280 or .270 instead?
I don't like it - I
love it!
For me, the 7x57 was Great Grandad's cartridge. And Grandad's. And Dad's. All the animals on all the walls in all of their homes fell to that cartridge. I didn't start out with one, but once I got one... I understood.
There are rumors of certain strains of Gun-Loony sickness that will completely take-over a guy: 1911 sickness, Savage 99 sickness, Pre-64 M70 sickness, et al. Not everyone is susceptible to a sickness, but once you're bitten - it's all over. The 7x57 can definitely be a sickness.
I'm sure the animals couldn't tell the difference between a 223 and 458 Lott if I were able to shoot them all in the ear. Even behind the shoulder, there's not enough difference in effect to truly justify having more than a couple of cartidges: 1 tiny, 1 huge. Trying to pick between 2 cartridges that are adjacent on the cartridge continuum is foolish: witness the ".270 vs. .30-'06" threads...
So, get whatever you like. But if you try a 7x57, you've been forewarned!
FC