Miles58,
The Model 64 has a very tight bore. It is a "fast" rifle with any book load I have tried. I started with 760 with the 130 TSX. The action gets a little sticky at about 2500 fps so LVR provides a good boost in velocity.

I should have mentioned that I also tried the 38.5 LVR/130TSX in a 1949 vintage 24" barreled 336A. I only got about 2540 fps in that rifle. The problem is that you run out of case capacity in the 30-30. You can't get much more than 39.5 grains in the case with the 130TSX.

Actually I don't know what part doesn't make sense to you. Maybe the Marlin speeds make even less sense? If you want velocity in a 30-30 use the 125 BT-short bearing surface and apparently engraves easily. I got about 2730 with it in the Model 64 without any pressure problems.

Last edited by Marc; 08/22/11.