Here's an easy one. What's the difference between these two?
If I'm correct, the bullet diameter of the former is .277" and the latter .284". Wouldn't think a .007 dia. difference would make much difference in performance all other things equal.
I understand that the .270 AM is built on a 300 RUM necked down.
The 7mm AM is a .338 Lapua necked down?
What are the advantages of one over the other, disadvantages?
I've read that the Lapua brass is superior.
Thanks for helping a newby,
Aitch
If I'm correct, the bullet diameter of the former is .277" and the latter .284". Wouldn't think a .007 dia. difference would make much difference in performance all other things equal.
I understand that the .270 AM is built on a 300 RUM necked down.
The 7mm AM is a .338 Lapua necked down?
What are the advantages of one over the other, disadvantages?
I've read that the Lapua brass is superior.
Thanks for helping a newby,
Aitch