Originally Posted by phorwath
I'm shooting the 7mm 168 gr Berger VLDs in my Tikka T3 7mm Rem Mag using 74.9 gr Retumbo, Federal GM210M primers, with the bullets seated 0.006" into the lands. My overall cartridge length from case head to tip of the bullet measures approximately 3.452".
Muzzle velocity is 3080 fps. My barrel is 24 3/8" long. My gun shoots this load to about 0.3 to 0.4 moa at 300 to 600 yds.
Just to illustrate that different rifles like different loads, and different lots of powder may make a big difference ...
My rifle (Savage 112BVSS, 26" barrel) likes 69.5g Retumbo, with the 168g VLD bullets seated .005" into the lands, fired Win Brass FL sized but with shoulders only bumped ~0.002", and WLRM primers. Chrono says 2989 fps average with ES in the teens. Based on leakage around the primer and difficult extraction the max in my rifle is 70.5g of Retumbo, all other things kept the same.
The rifle shoots any load from 69.0g to 70.0g even in mixed batches into a half inch (repeated ladder tests) and consistent 69.5g loads into ~.3". I was hoping for a bit more velocity, especially with the relatively heavy 26" heavy varmint barrel that is standard on the BVSS but this is what it shoots, so this is what I'm going to feed it.