Finally sat down (proned out actually) and tried grouping some rounds I've been shooting, meplat trimmed, RWS brass, 43.5 Varget, CCI-BR2. I shot from my bipod and sandsock.
Shot a .12 MOA 5 shot group at 200 yards.
I then tried a little ladder test to see if I could get a little more speed and keep precision. The 11 rounds all piled in on top of one another at 200 yards for a combined group of just over .7 MOA (including called bad shots, 2... you'll see them).
The squares and grid are 1".
I believe the meplat trimming helps a bit...maybe but I'm reasonable sure it does not hurt.