My 338 Allen Magnum will be using the 350 gr ULD RBBTs. I have a decent supply of the older Wildcat 350s ready for testing.
My 338 AM is basically a 338-408 CT Improved if you will.
I have the barrel, stock, bullets and brass. Just waiting for the damn BAT receiver to get here so I can build the rifle.
The standard 338-408 is supposed to get 3400 fps with a 300 gr SMK with a 140 gr load of H-50BMG in a 35" barrel. I am looking to get 3500 fps with the same weight bullet but more importantly I want 3300 fps with the 350 gr ULD RBBT.
I suspect we will get it with the added capacity of the AM over the standard chambering.
Again, as soon as that receiver gets here there will be a full report posted here.
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