I'm having a 338 edge built and am wondering how I should tell the gunsmith to throat it? It will have the Wyatt 4" box and a 9.5 twist barrel I don't want it to be a one bullet wonder, I wouldn't mind being able to experiment with 250 to 300 gr bullets. I'm thinking something along the lines of throating it so a 300gr berger tactical OTM will fit the mag and be seated JUST off the lands. Then if I use a 250 I can just seat them out a bit further. Whatcha think? Any better ideas please feel free to let me know.