Are Berger 85.5g 223s reliably Supersonic at 1000 yards?

[DWN48]

Are Berger 85.5g 223s reliably Supersonic at 1000 yards?
How about Hornady 80g ELDM
Supersonic is necessary for electronic targets.
Thanks

 

[Laurie]

Depends on your MV and range environment (ie altitude and temperature). Use Berger's Ballistic Calculator on the company's website and select the 85.5 LRHBT from the drop-down bullet menu. You can use the same program for the 80gn ELD-M. Just select an 80gn Berger from the list and overwrite its G7 BC value with 0.258 which is the average G7 value Bryan Litz obtained in his long-range tests. Bryan's values are very good - as good as you get without going to custom ballistic profiling.

Sound barrier is c. 1,125 fps at 59F / sea level and you'd want to have a fair margin above that @ 1,000 yards for reliable target operation.

 

[DR_2297]

1520+/- @ target @ 1k from my 223 Palma rifle depending on atmosphere, etc

 

[Ned Ludd]

From JBM Ballistics: 2750 fps muzzle velocity, generic atmospheric inputs. If a tuned load has velocity in your setup above 2750 fps, so much the better.

 

[bpd459]

Greetings,
My B85.5 shows 1500fps at target (via ShotMarker), with a MV @ 2840fps.
John

 

[Doug Beach]

No problem with 80ELD’s out of a 30” at 1k, on e-targets.

 

[JOE360]

75 elds will be supersonic at 1000 , with 3000 fps muzzle. At 800 above sea level