I'm dead set on having my first custom rifle built. I've had the chance to shoot different stocks and I'm pretty set on the AICS 1.5. The thumbhole stock just feels natural to me. However, I'm still undecided on the caliber. I don't reload. It's something I'd eventually like to start but just haven't been able to due to PCS, deployments, etc. I've almost burnt out the search feature on the site with all the knowledge around here. I was originally wanting a .300 WSM but now leaning more towards a 7mm WSM or SAUM. I'm looking to punch steel at 1000+ without breaking the bank on ammo like a .338. I've weighted the advantages/disadvantages of the .300 WSM vs. the 7 WSM and 7 WSM vs. 7 SAUM. It sounds like the 7 SAUM is easier on the throat and barrel with almost identical speeds. It also sounds like 7 SAUM brass is hard to come by. For someone that doesn't reload yet, is 7 SAUM ammo gonna be hard to come by? Also, the 6.5 sounds like an option, but I don't want to go through barrels as fast as I do underwear. I'm completely open to suggestions. Thanks in advance.