I just traded for two box's of bullets. .284 Hornady Interbonds One is 139 grn. and the other is 154 grn. Does anyone know what the upper max is for these with R22 for the 7 Rem Mag?

The 7Mag will show a lot of variation. Some will use as much as 69-70 grains with the 154's and 71-72 with 139's. The next rifle will need to load 65-66 grains max with 154's. The Win. brass also holds a lot more powder than a Rem case. The only way is to start low and work your way up, it is a lot of work, but is the correct way.