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Yeah it's ugly on the outside, I lightly sanded mine to see what it would look like. There's also a section that looks like it spun in the chuck. Sadly that raised portion is a critical dimension for the front triple frame. I have everything for mine except the receiver flat which went out of stock LOLJesus! Looks like four sections of barrel combined into one.
That was turned without the use of a 'follow rest' but it's only cosmetic. These would most likely get Parkerized in which case it would be abrasive blasted prior to treatment. Tool marks are of no consequence on the exterior surfaces of a military firearm...just look at Winchester M1 Garands. Most look like they where machined with a dull rock.
the trunion i dont find the spot welds. i just peel the metal back and just grind it with a 1" belt sander.RTG has flats in stock right now after being out for a few weeks as well as the semi auto shelf. Here is the demil tutorial from Weaponsguild, it includes the trigger pack.
Yeah only matters the trunnion and tripple tree fit . Sand paper can smooth the rest outthat's because his camera doesn't focus on the barrel. It focuses on the workbench behind it. You can still see the blurry little lines, but as long as it is functional.