Re: 7mm/WSM-SAUM
On my WSM with the plate taken out, I can get 2.965 on the OAL. The 10 round mags will hold 7 rounds and 3 rounds if you use the 5 rounds AICS mags. I think the AW can get a little longer, but not much longer on the seating depth. No feeding issues for me using either mags. Just make sure the opening is wide enough and it should feed fine.
My 7WSM isn't that sensitive to seating depths, even with the VLDs. Last time I measured to the throat, the OAL would have been around 3.14 or so well over 1500 rounds ago, I am sure it's the throat has lengthened some since then and it still can shoot .25 to .5 groups at 100 yards, which is rare nowadays. It's such as waste on ammo.