Prefit action for F class opinions/experience

[Alex Wheeler]

Most of the better actions are pre fit compatible. Some of them hold thread timing as well so I can send you a barrel with the bore clocked and the engraving will line up without ever having the action. Bat and Kelbly's are like that. I can chamber pre fits for those in a matter of weeks usually. Thats the easy part. Getting the action in the stock is going to be your hang up. There really are not any bolt together stocks for this. I think its good advice to shoot what you have while waiting on a proper rifle. Theres a lot more to a GOOD rifle than just a chamber and bedding job, action and timing work are just as important to the finished product and really take the rifle over the top.

Any competitive sport is kind of a long term thing. Its going to take a few years for you to get the hang of it and start being competitive usually. Patience is important, not just for the rifle but for your progress as a competitor as well.

 

[Karlandco]

One Rifle over 2 years still a Bear to get out of stock .
If you shoot a lot ? A .284 Barrel is short life ?
A skim Bedding will most likely be Done .

I'm fine with the shorter barrel life. My problem is Im not great at determining when exactly that life has expired.
I may be able to get my hands on a Panda but it's short action. I've read this isn't a big deal other than removing the bolt to pull a loaded round. I don't know if there are any other drawbacks. I would appreciate any thoughts or insight you may have.

 

[Karlandco]

Most of the better actions are pre fit compatible. Some of them hold thread timing as will so I can send you a barrel with the bore clocked and the engraving will line up without ever having the action. Bat and Kelbly's are like that. I can chamber pre fits for those in a matter of weeks usually. Thats the easy part. Getting the action in the stock is going to be your hang up. There really are not any bolt together stocks for this. I think its good advice to shoot what you have while waiting on a proper rifle. Theres a lot more to a GOOD rifle than just a chamber and bedding job.

I may have an option but it's short action. Is that optimal?

 

[Alex Wheeler]

Most F Open rifles are on short actions. Nothing wrong with that at all.

 

[Karlandco]

Most F Open rifles are on short actions. Nothing wrong with that at all.

Pm sent

 

[Dan-Schenk]

Most F Open rifles are on short actions. Nothing wrong with that at all.

So is it possible or practical to utilize prefits? Or is it necessary to have a smith spin it up? I’m in Vegas and can’t find a smith that’s familiar with fclass or precision rifles so I’d have to ship the action out for rebarrel.

 

[jelenko]

Just to confirm. There are two kinds of 'pre fits'. Shouldered and nutted.

The nutted pre fits work just like a Savage - are barrel nut joins the barrel to the action and sets the headspace. From my own experience and from what others have said, this should work well even for 1K.

Shouldered pre fits are just like regular barrels - they screw directly to the threads in the action.
For actions that hold tight tolerances, a gunsmith can thread the barrel without having the action. In this way, it's pre fit. My understanding is most/all of the custom action suppliers hold tolerances tight enough for this - but others should confirm.

 

[urbanrifleman]

Post in thread 'Screwed on the Urbanrifleman Econo barrel.......' https://forum.accurateshooter.com/t...anrifleman-econo-barrel.4080798/post-38516863

Get a Mack Bros single shot action. I have everything else you need to do a build for yourself. And the formula works.

 

[AlNyhus]

Get a Mack Bros single shot action. I have everything else you need to do a build for yourself. And the formula works.

Weren't some of the Mack Bros. bolts about .016-.020 different than a 700 style pre-fit? -Al

 

[Alex Wheeler]

So is it possible or practical to utilize prefits? Or is it necessary to have a smith spin it up? I’m in Vegas and can’t find a smith that’s familiar with fclass or precision rifles so I’d have to ship the action out for rebarrel.

Very few competitors are using off the shelf prefits. Now, there are prefits, and there are prefits. There are many smiths that can chamber your barrel without the action. Some actions do not hold certain tolerances consistent. Like thread timing. So you cant clock the bore or know if the engraving will line up. In those cases you just need the action one time to record that info. So yes, a good prefit from a smith with a reamer properly spec'd out for F class using one of the top quality barrels currently winning is an option. An off the shelf cheapie with unknown or lower quality blank and unknown or poorly specd reamer would not be my first choice. Even as a beginner, Id rather see guys start with the best equipment so they can work on their loading, shooting, and wind reading.

 

[urbanrifleman]

Weren't some of the Mack Bros. bolts about .016-.020 different than a 700 style pre-fit? -Al

Maybe at first. Not now. The current action is one of the best bargins out there.

 

[Dan-Schenk]

Post in thread 'Screwed on the Urbanrifleman Econo barrel.......' https://forum.accurateshooter.com/t...anrifleman-econo-barrel.4080798/post-38516863

Get a Mack Bros single shot action. I have everything else you need to do a build for yourself. And the formula works.

I have a Mac bros evo II single. Just trying to figure out a reliable and available barrel option. I also bought a 284 shehane reamer, just trying to sort out logistics.

 

[MSS]

I built my first pre fit a few years ago. Bought all the tools I needed (which wasn’t cheap) and have not looked back since. It was super rewarding to shoot and work up loads for. Below is my final 6.5 140gr ELDM load. H4350.

I have built 2 more since. Impact short actions and one Origin long action. Ag composites stock, MPA chassis and a Grayboe for the long action. All shoot bugholes. Two Bartlein barrels and a Hawk Hill.

 

[urbanrifleman]

I have a Mac bros evo II single. Just trying to figure out a reliable and available barrel option. I also bought a 284 shehane reamer, just trying to sort out logistics.

Awesome! Good choice!

That kid at PVA has Osprey barrels available. As far as I know. He says they are quite good. I bet they are.

I don't have a blank for that reamer that you would like or I would offer to sell you one.

If you need a stock let me know.

 

[AlNyhus]

Maybe at first. Not now.

No maybe about it...they were.

That's because they used their replacement 700 bolt (that needed to be head spaced) in the EVO actions. I understand the later EVO actions will take a 700 style prefit...not sure when or what serial numbers the change came after, though.

Good shootin' -Al

 

[urbanrifleman]

No maybe about it...they were.

That's because they used their replacement 700 bolt (that needed to be head spaced) in the EVO actions. I understand the later EVO actions will take a 700 style prefit...not sure when or what serial numbers the change came after, though.

Good shootin' -Al

I think that was some time ago.

All I know is that the current actions are an insane buy. I tell my customers to buy as many as they can afford. I figure they will be severely backed up here pretty soon. Or the price will go up.

Of course, the cork sniffers probably think they are too cheap to be good haha

 

[AlNyhus]

I think that was some time ago.

All I know is that the current actions are an insane buy. I tell my customers to buy as many as they can afford. I figure they will be severely backed up here pretty soon. Or the price will go up.

Of course, the cork sniffers probably think they are too cheap to be good haha

Given the cost of shipping back/forth and the potential issues for the customer, there should be a way for customers to know when they order a barrel for their Mack Bros. action if the action they have will work with a 700 pre-fit. Or not. Since the change is a fairly recent one, there's a fair amount of these actions out there that won't take a pre-fit w/o some additional work to the barrel after they receive it.

Maybe Mack Bros, could provide this? Or it could be added as a link on your site to take them to the Mack Bros. for confirmation?

I've got an EVO single shot on the the way and am looking forward to working with it.

Good shootin' -Al