Hi Folks,
I just finished testing it for runout. Bad, very bad. I use a precision grounded rod and turn a new thread tenon in the lathe to a snug fit. No wonder Winchester is taking a beating. Glad I didn't just thread and chamber the new barrel and let it go.
Dan

It’s a pretty rare factory rifle that has the receiver threads square to the centerline axis.

Mass production requires the bulk of machining/threading operations to take place before heat treatment or they would be in an almost constant state of shutting down the machines to change the cutting tools...and factory made rifles would be much more expensive than they are.

If you want an action that has everything within .0001†you have two choices...blue print a factory action or buy one of the custom made jobs.

I saw a new Winchester the other day that had the scope mount holes drill out of line so bad that it was actually visible to the naked eye.

They replaced it when the dealer returned it.

No question that there has been some quality disconnect there.

quote:

Originally posted by vapodog:
I saw a new Winchester the other day that had the scope mount holes drill out of line so bad that it was actually visible to the naked eye.

They replaced it when the dealer returned it.

No question that there has been some quality disconnect there.

I don’t know about you but that’s the stuff that drives me nuts. I can understand a screw up in any massed produced product but when the screw up is so easily noticed you would think that someone would catch it at one of the many inspection stations those things go through. It ain’t like you have to put an inspection gauge on screw holes that your naked eyes can see are not lined up.

Rick,

I agree. I have a badly inletted M70 FWT stock - Matt Williams said it came from Italy. Not only is/was the barrel off center in the channel, but the factory clearly had to router it out even to get the action to fit. They shipped it anyway. Reminds me of GM cars from the late '70's...

Jaywalker

I guess as long as people keep buying this stuff and not returning it there isn’t much hope that it will improve.

Personally, I don’t own or use factory built “rifles“...and never have. If I can’t buy just the action I will buy the cheapest model available and use it as a “donor“ action to build from. I don’t give a rats ass about the caliber, the barrel, the stock, or the finish...and I automatically assume that the action needs to be squared up and blue printed.

Thats what I'm doing from now on. Buy me some old rifle,actions and start from scratch or get a rem from walmart

Dan Dave Manson makes a nifty little tool that will take care of the thread alignment problem.

quote:

Originally posted by D Humbarger:
Dan Dave Manson makes a nifty little tool that will take care of the thread alignment problem.

I have two complete sets of Dave’s tooling to Blue Print 700’s and 70’s and the time savings alone over single pointing with a lathe is worth the cost. Some will argue that you can be more precise by single pointing, but that’s only if you have a REALLY good lathe and a REALLY good operator. I’m not the latter, and don’t own the former.

Dave’s tooling is great, and his customer service is incredible.

quote:

Originally posted by Rick 0311:

quote:

Originally posted by D Humbarger:
Dan Dave Manson makes a nifty little tool that will take care of the thread alignment problem.

I have two complete sets of Dave’s tooling to Blue Print 700’s and 70’s and the time savings alone over single pointing with a lathe is worth the cost. Some will argue that you can be more precise by single pointing, but that’s only if you have a REALLY good lathe and a REALLY good operator. I’m not the latter, and don’t own the former.

Dave’s tooling is great, and his customer service is incredible.

Where do you find this tool and can it be used in a common shop that is by hand?

You can buy directly from Dave or you can get his tools from Brownells. Yes they are hand “powered“ except for the recoil lug reamer and the tool that squares the bolt face but both of those can be powered with a hand drill or a drill press.

http://www.mansonreamers.com/

Does Dave make the reamers for Mauser or only 700s and 70s?

Oops, I see the link...

I bought a Win M70 Target model 30-06 made in 1969, and the scope mt holes were off, so that the Burris offset ring inserts were needed to get on target. The stock wood had shrunk after inletting, so that the mag box cracked the floorplate front tang when I tried to tighten it up. Epoxy bedding fixed that. At least the Redfield International sights were useable.

Probably the only rational thing to do is put on Leupold windage rear bases and from rings. This will compensate for the offset. I normally make custom mounts for Talley rings and if I run into this problem, I just fit the bases and then mill the rings on the receiver, in place, and this takes care of the offset problem. And, oh yeah, talk about repeatability when taking the scope off and them putting it back on!

Hi Guy's,
Igot the action trued today.It went from .042 down to .002 with real snug fitting threads.

Sorry about the extra post. I cleaned up the threads enough it looks like. If it shoots better , it will be worth all the time. I imagine it will be a little more consistent. I tried it on one of my more looser stubs and it was out about .015. I think its better. Any opinions?
Dan

Dan, I am curious as to just what you are measuring and how. Thanks for any reply.

Hi Bob,
I grew up close to Pensacola. I have a m70 action that I was in the process of rebarreling. I used a grounded bar and made a thread teneo in my lathe. I screwed the action on the piece and put an indicatoe on it originally and it was out at the tang .042 I had hoped to find it 10-14 thousands. So put it in a sleeve and single point threaded enough to clean up. Its checking better now, but only shooting will tell the truth
Dan