My FFL got me a 375 H&H mag in Remington model 700 XCRII a couple months ago. I finally got out and shot it today. I was using handloaded 300 grain swift a-frames with 75 grains of H-4350 and federal 215 primers.
The two pics show the first target I shot, .375" group (ironic eh?) at 100 yards with a single bullet that was a flyer (it was my first shot and I had run a solvent patch through the barrel).
After those first 4 shots, I ran a patch with copper remover, then a patch with solvent, then fired 5 more shots. The first one flew away from the other 4 and the other 4 made a .55" group.
This rifle is straight out of the box with a Leupold VX-3 3.5-10x40 CDS scope with quick release mounts.
Just thought I would show everyone how nice a brand new model 700 is shooting these days.
BTW, no lead sled, just a standard rest.
***The darker image target were the first shots and the image is rotated 90 degrees, it was hitting low to start***