my brother-in-law told me of a fella he knew who had one in a 7mm mag and his partner a .270 manual transmission....good translation. long story short it was fall time and these 2 were hunting in the Cantwell area some 12yrs. back maybe. Out moose hunting and the fella with the BAR got betwixt a sow and her cub..the mother grizz took out after him, he took a shot at the sow and his follow up shot failed. His buddy who some distance away heard his buddy screaming and yelling came in running and and seen the sow all over him. He killed the sow with his .270 and many months later after extensive medical bandaging he inspected his rifle and found some twig or debris of sort in his action..... I would personally "not" use one in by choice. All of my rifles are bolt guns with the exception of a M1 Garand.