Finally I get to Open a Bolt for PPC!

Ok so its not a PPC its a 6.5 Grendel but its the parent case. Ya I have wanted to do this for a while now. Its pretty easy. I am posting up photos below if anyone else wants to give it a go. The bolt is one I have fluted, bushed turned up and done a bolt lift kit on. Now its getting another barrel this time for 6.5 Grendel. Naturally its not the same bolt face as the 6.5x47 so a 223 bolt head was acquired with the ejector claw and plunger. Get the ejector claw for the 308 size not the 223. Pretty easy to open up the bolt head and true it up. I also bushed it to so it fits the old firing pin witch has also been bushed and turned down to a smaller size. The extractor claw was tricky and I use a big magnifying glass and DRO to know what is getting cut on that tinny part. It took some time back and forth on the mill but I got it right. Next one should be a breeze.

 

More photos of it after being trued up and a final of the assemble heads next to each other.

 

This is the mill work. You have to cut the underside and then flip it over and use a ball end mill to give the top a nice scooped ramp so the cartridge clips in easy.

 

what is the blue stuff called?

 

blue stuff.

 

Ok. hope that was a bit funny. I call it bluing. Steel blue or layout fluid. Sometimes called by brand name, Dykem.

 

It lets you know the exact moment your tool touches or you can scribe a line in it without gouging the part

 

Didn't it used to also be called "Prussian Blue"?

 

yeah, maybe a little!!LOL

 

Thanks for sharing, this forum needs more stuff like this, I learn more and more every time

 

Thanks everyone. So the blue is a permanent marker. I have red black and blue on my bench for various things. I think the official technical term is marking fluid. I also keep a bottle of dark blue ink handy on the bench.

 

Prussian blue is "spotting ink". It stays wet and is used to mark contact areas when fitting parts. Layout dye dries very fast and is used to scribe layout lines or to show tool contact when machining or grinding.

 

For those that have a standard( .473") Savage bolt head, a new slightly longer extractor is all you need to work with the PPC head size in a single shot action. No bushing needed. I don't know about a repeater, but I suspect it will work there also.

RWO

 

Good to know. Back in Uncle Sam's canoe club, I remember the machinist's talking about using Prussian Blue for some of their work... and some of their pranks. Not a lot of call for the stuff in electrical power / control work I did, and I steered clear of the latter!

 

I found there is to much slop then. The ejector claw pushes it off center then you have primer strikes off center. Causes SD to go up. But that is a good quick and dirty way to do it.

 

Your chamber is what centers the case, not the boltface. The boltface needs to be loose and have no influence on the case

 

Savage made a pic bolt head

 

PPC

 

I know that. But your firing pin strikes will not be centered. That can ruin your SD and Harmonics. As the firing pin penentrates the primer off center, if it hits a leg of the anvil it will begin ignition earlier then if it hits between one of the legs of the anvil and will cause a lot of flyers.