From everything I've read, the R-25 is really a DPMS Panther only with camo finish.
Bushmaster, DPMS and Remington are now all part of the same company.
If you were to have any issues with your R-25, the firearm would really be sent back to DPMS.
I don't own either, but I'm saving for a Panther in either 260Rem or 6.5Creed.
Every article and forum I've been to, rave about the quality/accuracy/performance of these rifles. Especially when price is considered.
Again, the R-25 and Panther are the same rifle. The DPMS will be a bit cheaper. Remington charges a premium for the name.
Now on the down side. If you wanted a DPMS, and they didn't have your rifle on hand, you could be looking at 6months or more to get one once ordered.
I want a 6.5, and they were having issues with the 260 and Creed.. They stopped production on them to figure things out. They recently started production again on the 6.5s(a few months back)... Issues were only on the 6.5mm rounds. Some ammo not seating properly in the .308 magazine. cartridges not feeding or seating properly/reliably in the chamber. All other chamberings from what I've read have been very reliable. Barrels offered in the 260 version are 24", 20", and 18". The 24 for competition shooting, the 20 for both comp and hunting, and the 18 for hunting. The 18" hunter only weighs 8lbs. And is accurate enough for me out to 600yds. But a 24" chrome lined fluted bull barrel sounds appealing too. Do some research on these if interested. I know I am.
They also offer an adjustable trigger upgrade.(yes, trigger can be heavy) You may be able to find a .308 with adjustable trigger out there somewhere.
Scott