Table:
text: 6 mm caliber
.264in (6.6mm) and up
.264in (6.6mm) and up
Name_ Bullet Length_ Base Shoulder Neck
.260 Remington 6.70 (.264) 51.7 (2.035) 11.9 (.470) 11.5 (.454) 7.5 (.297)
6.5 mm Creedmoor 6.70 (.264) 48.8 (1.924) 11.9 (.470) 11.7 (.459) 7.54 (.297)
6.5x47mm Lapua 6.70 (.264) 47 (1.9) 11.95 (.470) 11.53 (.454) 7.41 (.292)
6.5 mm Grendel 6.70 (.264) 38.7 (1.524) 11.14 (.439) 10.87 (.428) 7.44 (.293)
.264 Win Magnum 6.70 (.264) 64 (2.5) 13.1 (.515) 12.5 (.491) 7.6 (.299)
6.5 x 52 mm Carcano 6.80 (.268) 52.50 (2.067) 11.42 (.450) 10.85 (.427) 7.52 (.296)

Question: What bullet does the 12.5 shoulder (.491) gun in 6mm 264 caliber in 6 6mm and higher have?