I've checked out the 7mm lrm but I'm still interested in hearing from someone who's got one built. Those gunwerks rifles look beautiful but what a price tag!
I believe the 7mm-375 ruger or 7 lrm would be similar to stw capacity but with the shorter fatter powder column and no belt makes a more efficient cartridge and ###ier looking

Almost identical to the dakota but with a normal bolt face.
Maybe I should give the STW more credit but I understand that the STW is difficult to to shoot accurately at the high end. I would think that the shorter powder column would alleviate some of those issues.