Re: 300 Tomahawk
I've got a 30" Lilja on this 30-338 Lapua Imp, and I reached 2965 fps at about 65-70Kpsi with the 240 and Retumbo.
I had slight ejector marks showing up, so I don't think I would have went much farther. I'm guessing with H870 I would have been somewhat higher, maybe 100 fps? 3200 sounds about like my 210gr load.
How long does your brass last at that speed?
I didn't want to loose any brass this early on, so I didn't push 'em after I got about .0008" CHE, and extraction was still smooth...
Have any of you guys tried the Federal 300 RUM brass yet, just to see how it held up under the same loads?
If you didn't shoot them a whole lot, you might get a MV bonus if they take a bit more pressure than the Remington stuff will. Probably counter productive in the end tho...