Ruger American Rifle 7mm Rem/300 Win Mag 3 Rd Polymer Black Finish. Mag. .300 Win. Mag. .338 Win. Mag 7mm PRC & 6.5 PRC). The maximum COAL for the magazine is 3.37". Magazine fits securely in the stock with a sleek profile. This magazine fits stocks equipped with a removable long action magazine well assembly. Specifications for Ruger 90549 American Rifle 7mm Rem/300 Win Mag 3 Rd Polymer Black Finish: Mfg Item Num: 90549 Supplier SKU: 19742 Category: MAGAZINES AND ACCESSORIES Caliber: 7mm Rem/300 Win Mag Capacity: 3 rd Finish: Black Material: Polymer Type: Detachable Model Fit: American Rifle Brand Fit: Ruger The Ruger 90549 American Rifle 7mm Rem/300 Win Mag 3 Rd Polymer Black Finish is a quality addition to the Ruger lineup. For more great deals on Rifle Magazines by Ruger please browse our Ruger Magazines page. What firearm models does the manufacturer say Ruger 90549 American Rifle 7mm Rem/300 Win Mag 3 Rd Polymer Black Finish is compatible with? The manufacturer says that Ruger 90549 American Rifle 7mm Rem/300 Win Mag 3 Rd Polymer Black Finish is compatible with Ruger American RifleRuger 90549 American Rifle 7mm Rem/300 Win Mag 3 Rd Polymer Black Finish