I tested some VV-560 for the first time yesterday in my Model 70 Fwt. The Oehler 35 had some surprises in store...
First were some five-year old loads of 47.0 grains RS Magnum/WLR/140 Partition. Three shots were 2243, 2219, and 2181 fps. Pretty damn slow!
A few weeks ago, someone asked about a Terry Wieland article in "Rifle" that recommended 48 grains of IMR4350 and a 140 Partition in "modern" rifles. (Mauser 98 or later.) I maxed-out at 47.5 grains with a Federal GM210M primer and got 2774, 2763, and 2753 fps. No obvious pressure signs, which made me happy: This was some OLD powder with lots of red dust. I'm going to do some further experimenting with fresh powder.
VV-560 loads were using Barnes 130 TSX and GM210M and ranged from 48.5 grains to 50.0 grains. Velocity with the max load was 2678, 2680 and 2689 fps. These loads had an OAL of 2.825 inches. 49.0 grains gave 2626, 2610, and 2659 fps. The same load (49.0 grains) with and OAL of 3.01 inches gave 2770, 2791, and 2799 fps. I'll be doing some more experimenting with the longer OAL.
