Re: Need a little help gentlemen.
I also concur with Lt.Arc.....
I have both .338LM and .375/408. I <span style="font-weight: bold">do</span> shoot the .338 more often, simply because shooting the .375 at less than 1500 yards is a bit of a waste of it's potential, and I am hard pressed to find ranges beyond 1500-1600 yards in the Midwest, even when I visit Camp Atterbury in Indiana. Unless you live out West, it's difficult to find anyplace to shoot that far.
With the new .338 bullets from Berger to be out soon, you can easily get to 1500-1600 yards with it, and will cost less to feed.
I also have a 7mm WSM, but haven't played with it yet, so can't compare how it will do in more difficult conditions at 1200 yards plus compared to the .338's.
If you do decide to go .338, take a look at the Norma Mag also. You can be very close to the Lapua in velocity, with very impressive accuracy.
If you want to have the best of both worlds, look at the Desert Tactical Arms SRS. You could get a .338 and have a .300 WM or 7mm WSM barrel and bolt to go with it.
So many choices....... Good Luck and let us know what you decide on.