Actually, I believe the 270 Win had the same parent case as the 30-06.
That would be the short lived 30-03.
Note that both have long necks.
The other '06 wildcats probably started with the '06 case.
jmho
Tim
"The significant problems we face cannot be solved at the same level of thinking we were at when we created them."
Albert Einstein
At Khe Sanh a sign read "For those who fight for it, life has a flavor the protected never knew".
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