GRA Posted September 22, 2018 Report Share Posted September 22, 2018 I just got some Hornady .308 TAP "urban" 110 grain rounds in yesterday. Anybody have any experience with these light rounds? They have the red plastic ballistic tip. Seems like they should move pretty good and work well with the 1-11.25" Armalite twist barrels. Just curious what their deflection and drop factor would be with that light weight and speed increase over the 149 grain 7.62x51 NATO? Quote Link to comment Share on other sites More sharing options...
98Z5V Posted September 22, 2018 Report Share Posted September 22, 2018 Plug their speed into this, and it'll spit out the drop for you: http://www.jbmballistics.com/cgi-bin/jbmtraj_simp-5.1.cgi Quote Link to comment Share on other sites More sharing options...
GRA Posted September 22, 2018 Author Report Share Posted September 22, 2018 Just now, 98Z5V said: Plug their speed into this, and it'll spit out the drop for you: http://www.jbmballistics.com/cgi-bin/jbmtraj_simp-5.1.cgi COOL ... thanks. I'm curious to see of anyone here has witnessed the actual performance. Sounds like a nightmare round not leaving much to survive. That's damn twice the weight of an M193 moving at about the same speed. WOW !!! Quote Link to comment Share on other sites More sharing options...
98Z5V Posted September 22, 2018 Report Share Posted September 22, 2018 When I don't have a good velocity to work from, to plug into that calculator, I use Shooter'sNotes to come up with a velocity - from another known velocity. http://shootersnotes.com/calculator/velocity-estimator/ Quote Link to comment Share on other sites More sharing options...
Robocop1051 Posted September 22, 2018 Report Share Posted September 22, 2018 This would be a badass in a 300Blk!!! Quote Link to comment Share on other sites More sharing options...
GRA Posted September 22, 2018 Author Report Share Posted September 22, 2018 2 hours ago, 98Z5V said: When I don't have a good velocity to work from, to plug into that calculator, I use Shooter'sNotes to come up with a velocity - from another known velocity. http://shootersnotes.com/calculator/velocity-estimator/ Thanks again I'll save this one too. Quote Link to comment Share on other sites More sharing options...
98Z5V Posted September 22, 2018 Report Share Posted September 22, 2018 Shooter's Notes Velocity calculator is awesome, man. It was pretty much dead-nuts on between the 18" Grendel and the 12.5" Grendel. I used the 18" data to then come up with the 16" info, and it was really, really close. It's a great calculator. Quote Link to comment Share on other sites More sharing options...
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