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1/25/2018 7:38:29 AM
Posted: 1/13/2006 7:29:42 PM EST
Has anyone here ever chronographed the white box 55 grn fmj .223 that walmart sells? It is the stuff that is made in Israel. I searched around a bit and had no luck. Thanks in advance Eric
Link Posted: 1/14/2006 5:27:32 PM EST
Here is my data.

Bushmaster A2 20"Barrel 55gr FMJ Factory USA223R1 Avg.Vel=3069 Stdv=20 #Shots in string=12 Temperature~92F
Rock River 16"Barrel 55gr FMJ Factory USA223R1 Avg.Vel=2910 Stdv=14.1 #Shots in string=10 Temperature~92F

Link Posted: 1/15/2006 8:36:21 AM EST
Here's more data from the other day...

Colt 16"Barrel 1/7 twist 55gr FMJ Factory USA223R1 Avg.Vel=2920 Stdv=29.79 #Shots in string=10 Temperature~41F

Link Posted: 1/16/2006 6:19:57 PM EST
I crono'ed a few rounds of the 223rv (I can't remember the numbers but it's something like that) and it was around 3000 out of my 20 inch bushmaster.

I lost my data on that range session though.
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