Scope Rail Bed, only .0005 spring back??

[boltfluter]

All done. Holes are lightly chamfered and all edges sanded a skosh. Comes up to 'tight' instantly.

Good shootin' -Al

Very nice job Al! That's a serious looking rifle. We need a few details.
Paul

 

[AlNyhus]

Very nice job Al! That's a serious looking rifle. We need a few details.
Paul

Paul, it's an interesting gun. I was given the Hart LV barrel twisted 1:14 that was originally chambered in 223-38 by Ferris Pindell for a 700 action. I'd wanted to try one of the Mack Bros. single shot EVO actions so Randy Robinett and I conspired on a plan to resurrect the barrel and Randy chambered it with a no-turn 22 Creedmoor reamer. For brass, I used Lapua 22-250. Randy and I call it the '22 Anti-Creedmoor'.

With Randy's 'Swifty' model .22 bullets, it shoots honest 1/4" 5 shot groups at 3,800....and maybe a bit more.

As always with Randy....a fun project, a good way to get a vintage barrel back in service and a chance to evaluate the Mack Bros. action. We left the original markings on the barrel as a nod to Mr. Pindell.

 

[LVLAaron]

223-38

Short 223?

 

[ricco1949]

Short 223?

38mm = 1.500" +/-

Tweener 221FB and 222.....maybe preceded FB?

 

[DaveTooley]

My guess is shoulder angle. I have reamers from back then for a 222 and 223 both with 35 degree shoulders. They shot well.

 

[AlNyhus]

Short 223?

38mm = 1.500" +/-

Tweener 221FB and 222.....maybe preceded FB?

It was a full length 223 with a 38 degree shoulder angle. -Al

 

[LVLAaron]

Interesting, and very specific. Cool project!

 

[ricco1949]

It was a full length 223 with a 38 degree shoulder angle. -Al

Makes me wonder why the odd 38° and not full 40°?

 

[AlNyhus]

Makes me wonder why the odd 38° and not full

That was the age of experimenting with everything and answering accuracy questions.

 

[LVLAaron]

Well the one I referred to my post #1 above ended up being a glue and screw.

I have always used Brownell's spray release agent..but this time I decided to use what I thought was Johnson's Wax. Wrong..it is Minwax Finishing Wax, that I use for final finish on cabinets, and it ain't no release agent, despite three coats. The rail is locked tight.

But that's fine anyway cause I had planned on glueing this one anyway in a second step.

Still added the pins though. The .125 pins are locked solid to both action and rail @ .1247 in this setup.
View attachment 1655431

What length are the pins?

 

[ricco1949]

What length are the pins?

Looks like I used .625 on the rear and .500 on front. It'll depend on the thickness of your rail and receiver. Cut them to desired length in lathe.