"Buy your M7 off the used rack to avoid the trigger/safety issues experienced by the earlier poster"
Elaborate please. I'm not a Remington guy.
I have always found the older triggers used in the Rem 700 and M7 to be easily adjustable down to 3 lbs or so. Frank de Haas in his excellent book, Bolt Action Rifles, agrees, and he has an idiot-proof guide therein for adjusting Remington triggers.
The safety's unreliability is undeniably an issue, but I've never experienced a safety problem with any Remington rifle I've personally worked with.
Now flash forward to modern Remington bolt rifles, both the 700 and M7. The "new and improved" X-Mark trigger is claimed to be adjustable, but Remington requires a certified shop to do the work. This may be a good idea, because I can't get an X-Mark to adjust one whit. The new J-Lock on the cocking piece leaves me cold too. Much of these alleged problems are aesthetic rather than real, but it makes no difference to me. I miss the old days and the Remington rifles that were easy for a home body to work on.
And it doesn't help that Remington has relocated their firearms production, now employing workers who wouldn't know a BDL from an ax handle. They have acquired and have now castrated Marlin too. Just as Marlin brought a nice entry-level bolt gun to the market, Remington waved their magic wand and the Marlin disappeared.
It seems to me that that the "new" Remington is staffed by bean counters, rather than nuts and bolts riflemen. My opinion only; you are free to disagree.