18" Proof Research - 6mm ARC build and testing - factory and handloaded ammo
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6mm ARC revealed by Hornady on June 3rd 2020.

Having a 1000 6mm 90 grain Speer DeepCurls on hand I would have bought in on the day of announcement and went after hogs ....  However Hornady provided me with many challenges such as not providing load data, not having components or ammo readily available, and releasing in the midst of an unprecedented peak in gun sales and component sales.

August 10th 2020 - I have a rifle built, I have 100 rounds of factory ammo at the correct overall length of 2.250", and I have dies and components from my own stock/inventory to reload with.

The last two months have been an excruciating wait and I am super excited to get started with this project.  

Tomorrow I will setup a chrony and log velocity data and shoot 5 shot groups from this beefy barrel.  I did not have an adjustable gas block on hand so I am hoping Proof's CAMGAS system is optimized for the round as it is advertised to be.  I'm doing my part by using an OSS Helix Suppressor which is a flow-through design and has little to no blowback pressure.....

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18" Proof Research - 6mm ARC build and testing - factory and handloaded ammo - by Pig_Popper - 08-11-2020, 02:18 AM

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