Finally tested my 300 AAC blackout build today.

Ezesport

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Finally tested my 300 AAC blackout build today. I call it my Transformer as it has parts from about 12 different vendors. So it has a NEA lower ($69) with an Aero Precision upper with a Daniel Defense 10.3" barrel, a Fail Zero nickle boron BCG, a Magpol MOE stock, Bravo Company Mod 3 handle and low profile gas block, CMMG lower parts, ATI buffer, a 7" quad rail from aliexpress, a AAC Brakeout flash hider, A Vector 1-6x24 FFP cheap Chinese scope and a bunch of other no name parts.

These were extra parts or parts I had picked up to use on my other ARs but never installed. I'll probably upgrade some of the parts as needed (grip, BUIS etc)


After a couple of shots for sight in, I wanted to test the gun with a sampling of bullet I reloaded using brass I converted from 223. Here is what I got shooting from a sand bag at 50M with poor lighting (about 5:30pm) and 10-15km winds.



I shot 2 rounds of 8 different bullets
110g Hornady Vmax
125g Nosler Ballistic Tip
130g Speer HP
150g Hornady FMJBT
165g bulk FMJBT
180g Hornady SST
180g Nosler Accubond
150g Hornady FMJBT with Norinco brass (these were not suppose to work)

Others were using mostly Remington Brass.

I am a rather poor shooter with tired eyes so these results are quite good for me using a wide range of bullets. Next time out I'm sighting in for 100m and using just the low cost 150g Hornady FMJBT.

I was expecting some parts to fall out of the gun as this was my first complete build and there was such a mix of vendors. The gun worked flawless with low recoil. When I find some heavy 220g+ bullets, I'll test the subsonics.
 
Talk about a Frankenstein build! Just kidding. Nice build! You're one rail away from an MK18. :)
I found my DD 10.3" barrel loved 155gr SMKs. The bulk 150gr Hornady FMJBT was a pretty good performer as well.
 
The only thing that bothers me is the off color of the NEA lower. Rest of it is fine. Some of the other parts were upgrades I got for my DDM4V1 and my Norinco CQA but never installed.
 
Nicely done, similar to my 300BLK build with a nice variety of parts.
Give the 155 A-max a try over A1680. Two of my 300BLK barrels love the same load and are doing sub MOA with it. I'll look tomorrow and find the charge weight and post if I have time.
 
Gawd I need to get out and shoot my BLKs. :D

Lol, I just put together another 100 300BLK testers, I think I have about 500 rounds put together now to try. Sucks trying to decide which rifle to test them in, the new 300BLK AR I built has been getting neglected :(
Heading out to a buddy's farm this weekend to try and get around 1000 rounds down range split between 4 rifles. Taking 2 300BLK's (the new rem 700 in AICS and the ACR), my rem 700 in 223 with the carbon wrapped barrel, the 17 Fireball and either the 308 or the 338 Lapua (haven't decided which yet).

Will be a nice opportunity to try out the binary target ;)
 
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