AR battle zero deep dive- barrel length

How does the performance of your 5.56mm AR battle zero change with different barrel lengths? In this video we will shoot a 36yd zero side by side on cardboard out to 300 yards out of an 11.5" barrel and a 14.5" barrel. We will then take a close up look at where the rounds landed so that we can draw a conclusion around what to expect out for a battle zero out of your rifle.

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14.5" Rifle details
- colt 14.5" colt socom weight barrel- 1/7" twist
- DD RIS II FSP rail
- Surefire FA556-212 suppressor
- Colt 6920 lower

11.5" Rifle details
- Griffin armament Mk2 factory SBR
- Griffin armament dual lok 7 suppressor

Ammo
- Ally munitions canned ham .223 77gr- both rifles
- Silver state armory 5.56 77gr OTM- 11.5"

Optic
- Athlon ETR UHD 1-10 LPVO
- Reptilia AUS 39mm mount

00:00 Intro comments
01:37 Battle zero concept
05:32 testing procedure explanation
07:47 14.5" Live fire- ally 77gr
10:02 11.5" Live fire- ally 77gr
13:15 11.5" Live fire- 5.56 77gr
16:25 The results
21:11 Closing comments