The Firing Line Forums - View Single Post - What other calibers share/use the same basic cartridge case?

dmazur · December 29, 2012, 09:11 PM

The .243 Winchester is also a necked-down .308 Winchester.

I believe the .270 Winchester and the 25-06 Remington are necked-down .30-06 Springfield.

Going in the other direction, the .35 Whelen and .338-06 A-Square are necked-up .30-06 cases.

I'm sure there are others, but these are the ones that come to mind easily...

December 29, 2012, 09:11 PM	#4
dmazur Senior Member Join Date: July 5, 2007 Location: Pacific NW Posts: 1,310	The .243 Winchester is also a necked-down .308 Winchester. I believe the .270 Winchester and the 25-06 Remington are necked-down .30-06 Springfield. Going in the other direction, the .35 Whelen and .338-06 A-Square are necked-up .30-06 cases. I'm sure there are others, but these are the ones that come to mind easily... __________________ .30-06 Springfield: 100 yrs + and still going strong