I'd planned on using the .338 B.O.S.S.-C.R. version for a makeover in all matte black.
Couldn't justify the cost, so I ended up with the Remington 700 BDL-DM in that caliber for my 'elk-moose-bear' gun.
I did sell a Pete Fountain model clarinet and used the $ to get my BAR in 7mm Rem.Mag., though. I wouldn't ruin the finish on this rifle by making it matte, but, I did add a Bell&Carlson stock to it (the wood was too nice to leave on it). It's sleek and very accurate.
Now, Browning makes the STALKER model, which is what I had in mind for the .338. That would be a real nice gun. All black and very powerful. The B.O.S.S. is available, too.
A .300 Win.Mag. would be a good choice in the STALKER.
Anyway, here's mine:
Leupold 4.5-14x40 w/6" sunshade and Stoney Point target turrets; Millett Angle-Loc engraved rings on Millett 1-piece base; B-Square Match Roto-Tilt bipod; Browning X-cellerator sling and the C.(onventional) R.(ecoil) device.
The magazines are 3 rounders from the factory and I am not aware of any additional capacity magazines that will fit this model.
Get a STALKER and set it up.
There was a company that made/makes a Browning BAR that is heavily modified, called the "Interdiction" rifle. About $4000.
I'll try to get the picture up.