Takman,
The 338 Laupa is an excellent round but brass is both expensive and sometimes more difficult to get.
The 338 RUM is in the same league as the Laupa. Brass is cheaper and readialy available. The recoil isn't all that bad. I have a M700LSS w/ a Pachmyer Decelerator pad and have shot 25 rounds from bench and field positions, including prone, with no ill effects.
Accuracy is excellent from the factory tube. I have shot many groups under .5" off the bench with 200 gr BT, 210 gr PT, 225 gr PT and 250 gr PT bullets.I am just over .5" with the 225 gr AB and will work on that load pretty soon.
For target shooting, you can use a 200 gr to 225 gr bullets like the Nosler BT or AB. For hunting, you can go up from the 225 gr to 250 gr+ loads to hammer elk at long range.
Any way you choose, there are many great choices. /ubbthreads/images/graemlins/confused.gif
Hope this helps you out.
Regards,
JD338