Action Mandrels

[Sniperhandle]

Here is a quote from Alex Wheeler:

"The solid mandrel is the only way to go. I had a bunch of they made up in .0005" increments. .0002" for diameter and straightness, ground and hardened. They were not cheap and there was very little interest in them. But I had to order enough of them so the price was affordable. I have them for Bats as well. Setting up an action for truing is tricky, you cant have any error, especially with tight fitting bolts on customs. What your finding is not rare. Not all customs are as good as everyone thinks are they....
Try JGS to see if they will make you a set, but be prepared to pay for a small batch."

Thread 'Full diameter action mandrels'

Jun 9, 2021

I’ve recently discovered how to check action straightness in actions I’m blueprinting with the old bushing and .500 mandrel and I’m commonly getting .0025-.005 runout right behind the action when it’s shouldered up on the tenon. I’m a little disappointed as I spend so much time indicating and taking light cuts to try and make them perfect. I’ve checked a few custom actions that were anywhere from .006-013!! I had no idea.

I’d like to try some full diameter mandrels to indicate actions in for blueprinting and to more accurately check the customs I’m working on (im hoping they aren’t really...

• Taylor Stratton
• Replies: 53
• Forum: Gun Project Questions & Gunsmithing

• 

 

[hoz53]

He didn’t at least on the last batch, he advised on the sizing though.

Thread 'Full diameter action mandrels'

Jun 9, 2021

I’ve recently discovered how to check action straightness in actions I’m blueprinting with the old bushing and .500 mandrel and I’m commonly getting .0025-.005 runout right behind the action when it’s shouldered up on the tenon. I’m a little disappointed as I spend so much time indicating and taking light cuts to try and make them perfect. I’ve checked a few custom actions that were anywhere from .006-013!! I had no idea.

I’d like to try some full diameter mandrels to indicate actions in for blueprinting and to more accurately check the customs I’m working on (im hoping they aren’t really...

• Taylor Stratton

• 

ok i stand corrected— he was trying to get people to buy them at one point to get enough ordered so warner would do them

 

[BuffaloBill]

It seems like there could be a custom expanding mandrel that would accommodate various actions. Do you suppose it could not be made precise enough?

 

[Judd]

Alex started it and Alan had a minimum, I missed it and Stratton bought an extra set and I got that one. Worked out perfect because I was pissed I missed them. Matter of fact, if they did another one…I’d get the guy that has mine as much as I do to buy a set

 

[Speedy7722]

Alex started it and Alan had a minimum, I missed it and Stratton bought an extra set and I got that one. Worked out perfect because I was pissed I missed them. Matter of fact, if they did another one…I’d get the guy that has mine as much as I do to buy a set

I would be interested if there would be enough folks interested and the option still exists for another group buy.

 

[Judd]

Here’s the old post…I need to correct my post above, appears Stratton was the driver and Alex was just a big help.

Here is the old post that outlined the what, why and how…plus the specs. https://forum.accurateshooter.com/threads/full-diameter-action-mandrels.4039184/page-3

@Alan Warner could we talk you into doing another batch?

 

[Alan Warner]

Here’s the old post…I need to correct my post above, appears Stratton was the driver and Alex was just a big help.

Here is the old post that outlined the what, why and how…plus the specs. https://forum.accurateshooter.com/threads/full-diameter-action-mandrels.4039184/page-3

@Alan Warner could we talk you into doing another batch?

I have to take a pass on this.
Thanks for asking.

 

[WSnyder]

Someone can always ask JGS if they'll make them up. They made Wheelers original sets. I can't remember if they didn't want to do them last time or if Warner just ponied up quicker.

Post in thread 'Full diameter action mandrels'

Jun 10, 2021

JGS made mine. Regardless, your paying for tolerances. Spin them in v blocks and mic them when they come in. I can say JGS hit the specs on all of mine as usual. Would be interested to hear what they can do them for. Found the original ad for reference on price. I didnt buy them to make money, I just wanted a set and had to buy enough to get the price down so I sold the rest. Actually had a couple sets sitting around for quite a while.... https://forum.accurateshooter.com/threads/precision-action-truing-mandrels.3910417/

• Alex Wheeler

• 

Edit: JGS was too busy last time. Someone can still ask JGS to see if they'd be willing. They might since reamer order time has come way down.

Post in thread 'Full diameter action mandrels'

Jun 14, 2021

Well guys,I just got a call back from JGS, they will not be grinding any bars or odd jobs for the time being. They are too busy. I don’t know of anyone else at the moment other than @Alan Warner to get them from which is a very good option if we can get enough guys to make it worthwhile for him. Anyone know anyone else to contact that may be interested in getting a set? Currently we are at 7 sets myself included if everyone is still on board.

• Taylor Stratton