Today I fired several rounds with the 6.5SLR. The barrel is 26" long and has an 8" twist. It has about the same capacity of a .264 Win Mag. I started with 62.0 grains of WW2 H4831 and stopped at 67.5 grains. All loads worked through the small Weatherby Mark V action easily. I stopped at 67.5 grains because 67.0 and 67.5 gave almost the same reading. The velocities follow.
62.0 -----
62.5 - 3,196
63.0 - 3,227
63.5 - 3,257
64.0 - 3,267
64.5 - 3,282
65.0 - 3,278
65.5 - 3,313
66.0 - 3,333
66.5 - 3,359
67.0 - 3,403
67.5 - 3,401

How is your 6.5 SLR different than the Super LR (that people often call the SLR)? Based on velocities and your capacities they are most certainly not the same thing. I almost bought a Super LR/S reamer a month or so back but opted for the 6.5 Creed so that if I needed it I could buy ammo (I have shown up for a match where my rifle and ammo didn't arrive together).

KineticPerformance,

You would never guess what the "SLR" stands for in .6.5SLR. It stands for "Sue Loves Rich and doesn't hassle him about his wildcats". Last year it was a .257SLR on a .270 Win case, but I wanted a little higher BC bullet. The 6.5 case starts as a 9.3X64 Brenneke brass. A fired SLR case holds 84 grains of water to the top of the neck. Like the 6.5 Super LR this one also has a longer neck than what is presently popular. The neck flows into Weatherby radii because I like that look.

The rifle has a 26" Pac-Nor barrel that matches the Weatherby 24" contour ending in a big muzzle brake. With a Lone Wolf stock and a Swarovski z5 5-25X52 in Burris Signature rings it weighs exactly seven pounds. The Timney trigger is set a 24 ounces.