what about the 35/358 BR?

[sdswp5]

New to the forum, but I've just got to kick in my .02 here. I know it is rather anemic in most guises, but the mild mannered 35 remington makes a great subsonic 35. The round can be subsonic with Trail Boss with the 200 and 250 grain pills and Red Dot for the 300 grain plus pills (the benefit of this size of case is a near 100% charge density is possible resulting in great consistency). The fast twist barrels are easily available from McGowen Precision down to a 1 in 5" twist. The components and dies are easily accessible and reamers can be rented or purchased without fuss or mechanical drawings. On the other side of the scale, the 250gr bullet can easily be driven near 1900 fps for a more substantial punch when necessary. It's not the 510 but it works with a little tweaking.

PS. While no one currently offers a .358 vld that I'm aware of, they can be made with the proper equipment from solid copper. I've got to finish my build before I can offer real-world BC, but the modeling software predicts in the neighborhood of 1.4 when subsonic. The bullet weighs 335 gr in it's current shape and I'm thinking of stretching it a bit and getting around 365gr, because I can. While it's not designed to expand currently, it has that possibility with a 330-340 gr finished weight. We'll see where it ends up.