Originally Posted By: dcrzfitter
direct drive,

I realize what you are saying. This new Mag upper will be able to handle the pressure of the wssm because it will use an AR10 Bolt. The limiting factor will be the lower. As you know it limits the length of cartridge but handles no pressure.

This upper is not just for the .458. I just got wind of it after I had already ordered my barrel and So I called them and asked about doing a build for me on the new upper when it comes out. I hope to be able to pump it up just a little more.
They are a very reputable company with a few other new things coming to the market soon.


What kind of velocity are you guys seeing with a 300grn, 500grn bullet?

Kris

Again, the upper doesn't handle pressure.
Sounds like vaporware to me, my friend.
I would not plan around it.
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