I like the Sendero's because they shoot. The first thing I do to any rifle I get is adjust the trigger to about 2lbs. If it won't adjust down to that level, I put a after market trigger in it.
The Sendero's have good actions, Remington 700. It's not a custom, but alot of "custom" rifles have been based on this action. The barrel is standard Remngton factory. I don't think they do anything special like lap it or use any special cutting process. That's luck of the draw, but I've had good luck three times! The stocks are made by HS Precision for Remington. They are synthetic with an aluminum bedding block so they are very stable, consistent and do not shift POI, normally.
I've owned two of the original style with solid blued barrel. One in 7mmRM and the other in .300WM. Both shot lights out and consistently connected on remote, small targets. Good glass is required.
I now have a 700P in 7mmRM and a Sendero SF in .25-06. The 700P is just getting broke in and the last three groups were .8, .6 and .4 (62.5/63.0/63.5gns IMR4350/150gn NBT/CCI BR2). I haven't chrono'd them yet but I'm pretty sure they're fast!
The .25-06 shoots everything very well. It shoots the Sierra 75gn HP (coyote load), 100gn TSX and NBT and 115gn NBT and 117gn Sierra spitzer all into sub .5" groups.
I'd buy another in a heartbeat. They flat out deliver. Heavy, that's subjective, like recoil. Both of the 7mags that I have/had were used. The guys that got rid of them said they were too heavy. I say cowboy up. It's not intended to be a mountain rifle or to be used to shoot bobwhites and running cotton tails! They were the first "speciality" rifles, designed for the general public, intended for long range shooting/hunting. JohnnyK.
"The pleasure you get from life is equal to the attitude you put into it."