Guess that Cartridge

[Culpeper]

There are seven cartridge cases in the photo. You must guess what is the original name of each one. What you see may be a real cartridge case or it may be a modified case for other than the original head stamp. The count is from left to right.

[Parashooter]

OK, but not much confidence in some of these:

.30 US Army (.30/40 Krag)
7.62 NATO (.308 Win.)
.240 Weatherby Magnum
6mm USN (Lee Navy)
.257 Roberts
.256 Newton
.30 Newton

It may help to tweak image tilt/perspective and add some horizontal lines -

Cart quiz.jpg (51.62 KiB) Viewed 1254 times

Maybe some grid lines will reveal if there's a .007" difference between #5 and #6 neck diameter?

Cart Grid.jpg (132.66 KiB) Viewed 1247 times

[Culpeper]

What? No one else wants to take a stab at it? I tried so hard to be obtuse. Sheesh

All right Parashooter, you're my boy.

.30 US Army (.30/40 Krag) - Correct! (It was a givmee)
7.62 NATO (.308 Win.) - Correct!
.240 Weatherby Magnum - Correct!
6mm USN (Lee Navy) - Close! It IS shaped like a 6mm USN (Lee Navy)
.257 Roberts
.256 Newton
.30 Newton

You get a second bite at the apple

[Doubly Reincarnated]

More guesses:

#4 is maybe a .256 Newton?
#5 is maybe a 7x57?
#6 is a .270 Winchester
#7 is a .35 Newton

[King carp]

No.4. 220 swift? No. 7. 35 Whelen?

[Culpeper]

l

[butlersrangers]

I think Culpeper got it right .... ?