I have a couple of hundred rounds of both XM556SBCT3 and 75gr GDs. I'm looking for external ballistic data for both of them from a 11.5" and a 16" barrel so I can know my drops.
I'm also wondering if a 50/200 yard zero is even a possibility with either of these two rounds from my 11.5" - Any thoughts from someone who has experience with these cartridges in a 11.5?
Does anyone have any Chrono data and ballistic coefficients I can plug into shooterscalculator?
I'm also wondering if a 50/200 yard zero is even a possibility with either of these two rounds from my 11.5" - Any thoughts from someone who has experience with these cartridges in a 11.5?
Does anyone have any Chrono data and ballistic coefficients I can plug into shooterscalculator?