Posted By: bigjoe8565
.510 Beck ammo (690 grain sub sonic) - 02/09/16 02:22 AM
http://www.thefirearmblog.com/blog/2016/01/05/510-beck-a-690-grain-subsonic/
Anyone seen this? Looks awesome, but I wonder what the upper and anmmo cost.
Anyone seen this? Looks awesome, but I wonder what the upper and anmmo cost.