These are my three. None of them beat your 340 per se, but they are just my idea of perfect. I did get a little help with the blue print though.
Well, I’ve got the old P64 that was rechambered to 300 Weatherby with 180 Swift’s hopefully. Still working on this one.
The new Mashburn isn’t quite blooded yet. 175 BBCs for this one this year.
Or my always faithful P64 338 Win Mag. 210 Swift’s for this one.
First time in a long time I’ve attempted a 308 in the lineup since I ran a 300 Win for so many years.
I do have the P64 30-06 and 270 ready though.