Hsm ammo shortage

[DevilDOG_O341]

I've been waiting for several months now for HSM to have 300 win mag ammo in. I spoke with them today and they have everything to start producing except the brass. I forgot to ask who manufactures their brass and was curious if anyone here knew....

I am new to reloading and love the Berger bullets out of my rifle. So hopefully before long I will not need to buy factory, but HSM's ammo is hard to beat even though pricey.

Thanks for any feedback.