Ruger Precision Rifle

The Ruger Precision Rifle (RPR) is a bolt-action rifle introduced by Sturm, Ruger & Co. on 17 July 2015.
Models.
The RPR was originally announced in the following calibers and configurations:
A newer Ruger Precision Rifle "Gen 2" was announced on 6 May 2016 with several enhancements over the original. The new version includes a new handguard, a hybrid muzzle brake (5/8-24 threaded), and a billet aluminum bolt shroud. The announced models were:
A model chambered in 5.56×45mm NATO was announced on 27 March 2017. It has a 1:7 RH twist, barrel, weighing lbs.
Models chambered in the magnum cartridges .338 Lapua Magnum, 300 Win Mag, and 300 PRC went on sale in 2018. 
Technical features.
The Ruger Precision Rifle has a proprietary Pre-Fit barrel system. Pre-chambered "Drop-In Ready" barrels can be purchased, and the correct headspace is set using a proprietary barrel nut design. The barrel is threaded to fit the Ruger action threads. This way, a competent gunsmith can fit a new barrel exchange a worn barrel with a new one by only using an AR-15 barrel wrench and proper headspace gauges. This eliminates the need for machining by the gunsmith as with traditional barrel mounting solutions.
The RPR is compatible with AR-style handgrips, buttstocks and some types of handguards. The trigger is proprietary, but aftermarket triggers are available.
Recalls.
Ruger issued a safety bulletin for certain RPRs on 10 Aug 2017. The following serial number ranges are potentially affected: 1800-26274 to 1800-78345 or 1801-00506 to 1801-30461.