In good shape I have seen them new from $1199 and up to 1700 and used from $800 up
It is a really pretty rifle with special circassian walnut and ebony for arm. With express sights if you are talking about the Ruger express RSM meant ring scope mount.
$300-$375, depending on condition
$300-$375, depending on exact version and condition
200-800 USD
100-375 USD
Ruger has sn data on their web site. 100-375 USD
50-375 usd
In the south, we see prices from 375-475 for good used p90s
The first, and probably the first practical and popular belted magnum cartridge is/was the .375 Holland & Holland Magnum. The first NON-magnum belted cartridge was the .400/,375 Nitro Express H&H cartridge. See link below for more information
The in .375 Ruger, the rifle is lighter than 375 H&H, and 4 inches shorter. Ballistic performance is equal, recoil is greater. Comes down to a matter of opinion and cost. See the link below for an article comparing the 2 rounds.
Used from $375. - 469.00 with case 10 clip.
100-375 USD
$1500