Chambering short barrels in the headstock

[LVLAaron]

Got my D1-5 backplate taken care of. Fun little project all by itself.






Now I'm thinking through how to keep the rest of the fixture as short and sweet as possible. I need to keep the first inch or so in tact at full diameter to account for the mounting bolts that join the two main pieces. I could put the rearward set of bolts through that section (with long ass bolts for a barrel fixture, heh) - Then taper the jig down after that.

I think that gives me everything I'm looking for. 7.25 inch overall length (vs an 11 inch two piece setup with a 4 jaw and inboard spider)


So for the old timers - am I doing anything stupid? Better way to skin a cat? Open to any suggestions.

 

[LVLAaron]

Got the backplate drilled and mounted up. There's a fixture hiding in that big round hunk of metal... time to let it out.

 

[xr650rRider]

The thread below might be of interest. If using for an action truing jig, some smart gentleman recommend only using front screws resting on a bushing that wraps the front of the action. Otherwise you can bend the action.

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[LVLAaron]

The thread below might be of interest. If using for an action truing jig, some smart gentleman recommend only using front screws resting on a bushing that wraps the front of the action. Otherwise you can bend the action.

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That gentlemen makes the finest rifles money can buy, and produces perfect machine work.

KW Precision LLC | Pottstown PA

KW Precision LLC, Pottstown, Pennsylvania. 5,561 likes · 43 talking about this · 6 were here. Specializing in Competition Rifles for F-Class Open & FTR, Hunting Rifles, PRS & Barrel Chambering.

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[Liljoebrshooter]

Get the trash cans ready. There is gonna be a lot of chips. Nice project.

Joe

 

[LVLAaron]

Piles of rats nest a mile high. At least it's a pretty mess?

 

[xr650rRider]

I get to stress test my servo driving ELS on stuff like that. .200" cut off diameter at 1000 RPM with .010" feed rate. It will disappear quickly.

 

[LVLAaron]

Got the 2 inch hole bored all the way through. Man I hate boring.

I think the dimensions are going to be close to what you see. It's not very heavy as is, much lighter than a 4 jaw. iPhone photo makes it look a lot longer than it is.

 

[Ken226]

Looks great. Excellent work.

 

[LVLAaron]

Got as far as I'll be able to until I get a longer tap and some hardware. I also put a couple of index pins in to help keep perfect alignment of the backplate and fixture. Thanks for the support everyone!