I ran a few across the chronograph today, just looking for pressure/velocity. Most were fired at 200yd steel. The rifle is a 20" Remington 700 SPS-AAC-SD, brass is neck-sized W-W, primer is CCI 200, and all bullets are moly coated. I'm toying with the notion of going to a 2.995" Wyatts mag box, so some loads had a long-ish OAL. Weather was rather warm at 90F+ with steamy humidity.
RL15:
45.5gr with 168 Ballistic Tip. 2.815" OAL. 2,575fps.
46.0gr with 168 Ballistic Tip. 2.965" OAL. 2,600fps.
TAC:
47.0gr with 150 Ballistic Tip. 2.815" OAL. 2,750fps.
47.5gr with 150 Ballistip Tip. 2.955" OAL. 2,775fps.
RL17:
200gr Sierra Gameking BT at 2.955" OAL.
49.0gr 2,515fps
49.5gr 2,530fps
50.0gr 2,560fps
50.5gr 2,596fps (no pressure signs)
208gr Hornady A-Max at 2.985" OAL.
48.0gr 2,469fps
49.0gr 2,491fps
50.0gr 2,496fps
50.5gr 2,544fps (ejector mark)
51.0gr 2,578fps (ejector mark)
It looks like the RL15 and TAC loads are fine, even though I'm over max in several manuals. The moly and long throat contribute to lower pressures. The 200gr Sierra may be a good all-rounder at 2,600fps, but the workup shot about 2-2.5 MOA. I'll need to shoot the 50.5gr load again for accuracy. The 208gr A-Max hit pressure a bit earlier than I would have thought, although it was the end of my range trip and the gun/ammo/chamber were damn hot. Even so, the workup shot a bit over MOA at 200yds, so the rifle may like this bullet.
I just thought I'd throw today's range trip info out there, as there are bound to be a lot of folks working with the long Remington throats. A tight custom barrel, match chamber, shorter throat, and heavier brass would be burning a lot less powder to make those velocities, so be careful and work up.
