18" Proof Research - 6mm ARC build and testing - factory and handloaded ammo
#36
NOT MY VIDEO :



At minute mark 6:17 the guy bore scopes the area I am getting interference at on my barrel.

I don’t see anything obvious on his bore scope to explain the spaced concentric rings on my bullets...

The barrel will go back when I have another in hand to replace it - I can be load developing with my 90 grain bullets with this barrel (checking velocities and powders out) with no detrimental effects.

I absolutely agree, the “heavy players” in the industry shouldn’t be experiencing these problems on a product launch.

Very disappointing !

One point I would like to discuss - I found the following article that talks about the importance of freebore dimensions - it is from this line of thought that I just don’t prefer to mess with a chamber that has been set by the initial reamer and polishing - metal can never go back ...  would rather have a unit that was done right the first time.

Keep in mind , the issue appears to be with the shape of 1 bullet tested thus far , modifying a currently chambered barrel (that may not be to spec) and is for a bullet that I don’t plan to shoot seems like the same as saying two negatives make a positive in math , it just doesn’t add up for me.

   
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RE: 18" Proof Research - 6mm ARC build and testing - factory and handloaded ammo - by Pig_Popper - 08-19-2020, 01:12 PM

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