Appreciate the input so far. I have three rifles chambered for the 6.5x55, all of contemporary manufacture. All three have the same twist (1:8) and thankfully, all three slug the same (right at .264), tho the throats are slightly dissimilar... Distance to lands as follows:
Win Low Wall: 2.450
Ruger 77: 2.450
Win M70: 2.482
I'm currently having fun exploring loads for them up in the SKAN/SE data range (up to 3,100 fps / 55,100 psi). Goes without saying that we're not interested in attempting same with a cast bullet. That said, I'd like to find a nice accurate bullet I can eventually cast for these. Have never yet shot cast in a rifle, so am still learning pros/cons of different styles etc. Feel free to add any bits of wisdom you care to. I'm quite willing to have a custom mould cut, if someone recommends a fabulous bullet from a no longer produced mould. Photos always appreciated. Anyone like the RCBS 57904? Maven, can you say mould numbers for the two you mentioned?