If you have a proper reference regarding the accuracy potential of the M24 in a .300 Win. Mag. chambering please provide that web link. As far as I could read there is a solicitation underway for rechambering M24 rifles and I could not read anything about accuracy requirements, though one might suspect these rifles will not be exceptionally accurate since the M24 SWS is in essence an accurized or if you want to view things more critical a glorified Remington 700 hunting rifle.  

If you go on provided link https://www.fbo.gov/index?s=opportunity&mode;=form&id;=0d5c4ebc69fbb9bd9f37b47f8b0e1cef&tab;=core&_cview=1 and download "Amendment 1" (going through "Download Solicitation" page, no direct link) then you will get document "PURCHASE DESCRIPTION (15 January 2010 Revision) RIFLE, .300 WINCHESTER MAGNUM, SNIPER W/AY OPTICAL SIGHT AND CARRYING CASES, M24 RECONFIGURED" where you can find "Targeting and accuracy.  The rifle shall achieve the dispersion set forth below when fired from a machine rest.  The average mean diameter of shot groups fired with and without the sound suppressor attached shall be less than or equal to 1.15 inches at 100 meters (1 MOA) (T), 0.92 inches at 100 meters (0.8 MOA) (O).  The minimum rate of fire for conducting this test shall be three rounds per minute." This is really complicated "work". 69.141.140.192