The 46 TAC with the 210 TTSX isn't compressed much. At least I don't recall it being so. Could probably go a bit higher without problems. The 210 TTSX is a very looong bullet so it is a worst case scenario for the 338 Fed. 46 was 2570 with the 210 Scirocco II also. 2.88 is max mag length for my Ruger, that's why I'm using it. I think I'll load for groups around 46gn with the 210 TTSX and see how they shoot. A 210 TTSX at ~2600 would be a pretty decent load!