You might want to consider combining your break in with velocity testing and pellet selection. The first step is to thoroughly clean the barrel to get rid of manufacturing crud or whatever. Just remember that it can take up to 50 shots to season a squeaky clean barrel and settle it in.
Pick your zero distance and set up a largish target. Pain paper with a central aiming point or multiple points works well. You are just trying to establish group size to get a rough idea of which pellets your rifle dislikes. Try to have a selection of good quality lead pellets - JSBs a H&N s are my favorites. Kodiak/Barracudas often work well in an R-1. Also, a longer range target will give you a better idea of how a pellet performs. Many pellets will group reasonably at 25 yds, but open up at longer ranges. If you have a chronograph, you can shoot through it and at your target at the same time.
Don't forget to put out a lot of fun targets (water filled cans, paintballs etc) at the same distance to break the boredom. Heck, put them out everywhere. By the end of the weekend you will have fulfilled your break in, begun informal testing, and have a really good feel for your rifle.
Turn the chore into a fun, data gathering exercise. And enjoy that fine rifle!