Re: question about 700 ultra mag actions
Brownells has a mag box you can fit yourself with very little modification to the rear of the action. It comes with instructions on what to file off, where, and how much. The length on it is 3.91" I believe. My Ultras box is about 3.675".
You will not have any problem doing what you want with the 700. This is where the 338 Lapua case has an advantage, it makes up for some of the case capacity that the long bullets seated deep eat up, as it is larger in diameter and a bit shorter.
OAL on the 338 Lapua Imp is usually around 3.9" with the 300gr SMK. On the other hand, my brother seats his out to 4.1" on his 700 338/378wby and has to single feed them.
[ 02-26-2003: Message edited by: Brent ]