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  #11  
Old 02-17-2021, 10:13 AM
USMA-1982 USMA-1982 is offline
 
Join Date: Mar 2017
Location: Fredericksburg VA
Posts: 199
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Very interested in following this project. Would really like to do an A4 build starting from an A3 sporter. Good work so far and good luck!
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  #12  
Old 02-17-2021, 10:53 AM
Calfed Calfed is offline
 
Join Date: Dec 2009
Location: California
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Are you going to re drill the holes for the scope base yourself?


I've heard that the SC receiver are hard to drill
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  #13  
Old 02-17-2021, 11:11 AM
Jakeroub Jakeroub is online now
 
Join Date: Dec 2016
Location: Mass
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I was drilling and tapping a pile of A3 receivers and didn’t realize I’d drilled an SC until I was done. I didn’t notice any difference, but I was using a nice CNC mill with solid carbide tooling.
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  #14  
Old 02-17-2021, 08:46 PM
Jpolham1 Jpolham1 is offline
 
Join Date: Dec 2020
Location: Cortland, NY
Posts: 47
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Some small metal parts arrived. Screw kit still to be received.


Ordered two barrels, figured i would need a spare eventually for one my my a3's. The CMP is super far behind shipping criterion barrels so i will have someone thread on one of these RA44 barrels.

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  #15  
Old 02-17-2021, 09:00 PM
col b col b is offline
 
Join Date: Feb 2010
Location: Huntsville, AL
Posts: 3,264
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[QUOTE=Jpolham1;2016301]thanks, I was aware the weld spots would be a different color, tell me more about this park blackening... I havenít heard of that.[/0seQUOTE]

I think Laurer's from Midway is the stuff I use. I use it regularly when I want black parts. Just dip it in for 10-15 seconds, rinse it (instructions say air dry) but doesn't seem to matter. Put it in parkerization solution and park as normal. Worked for me.
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  #16  
Old 02-23-2021, 08:24 AM
Jpolham1 Jpolham1 is offline
 
Join Date: Dec 2020
Location: Cortland, NY
Posts: 47
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A little victory... The scope rail showed up, seems to be good quality. I also bought fillister flat head screws to change out the torx that the CCOP mount comes with to be more correct. Its the little things, right?

With the mount centered on the front receiver ring, it is centered on the existing rear hole. I just need to open it up and thread to 8-40.

Lastly, i ordered another ammogarand web sling. I like these the best out of any web sling I've tried.

Also some more development. With all gunsmiths being booked out several months, I have decided to take on all aspects of this build myself. I will be mounting the scope rail, rebarreling/finish reaming, and parkerizing the rifle myself. I have done all this in the past except for parkerizing but that looks super easy. Equipment / parts for all this work is on its way to me...although probably delayed (Thanks USPS!)




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  #17  
Old 02-23-2021, 09:31 AM
hebes405 hebes405 is offline
 
Join Date: Jan 2018
Location: Ohio
Posts: 855
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The flat head screws on the mount are a nice touch. I like it!
Parkerizing is easy. Just make sure your blast media is clean.
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  #18  
Old 02-23-2021, 10:37 AM
Jakeroub Jakeroub is online now
 
Join Date: Dec 2016
Location: Mass
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I believe that screw is called a "cheese head", not a "flat head".
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  #19  
Old 02-23-2021, 12:03 PM
ZvenoMan ZvenoMan is offline
 
Join Date: May 2011
Location: AL
Posts: 4,227
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Quote:
Originally Posted by Jakeroub View Post
I believe that screw is called a "cheese head", not a "flat head".
They are fillister head screws.

JH
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  #20  
Old 02-23-2021, 01:29 PM
smag smag is offline
 
Join Date: Oct 2011
Location: Clarksville, TN
Posts: 299
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I'm watching. I have an item on my work bench for this build that should look good and work nicely. Yer right Justin nice filister head screws are the way to go. Those cheap ChiCom monkee screws are worthless.

Shawn~

Last edited by smag; 02-23-2021 at 01:31 PM.
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