Mack Bro’s SS Evo

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I'm going to be using a prefit with a nut because I don't feel like sending my action out and it also allows me to fine tune head space. Plus no one offers a shoulder prefit at the moment. As far as the curve of the bore goes it will influence the point of impact more from heat then the harmonics of the barrel. Harmonics of the barrel affects the point in space at which the bullet exists the barrel so if you control the time at which the bullet exists the barrel during these sine waves you end up controlling your group size. But as the barrel heats up the direction of the bore curve will effect the POI shift. I think the reason a gunsmith would try to align the bore curve vertically would be to keep the poi shift vertical as the barrel heats up plus it looks better in the stock. Just my two cents.
 
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reubenski

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This house of cards is really built via one very arguable assumption.
Keep in mind it's really just food for thought. I enjoy learning and thinking about the technical side of things. I'm not at all trying to argue nut set ups are crap. I just plain like the look of shouldered setups better. When I'm spending money on expensive actions & stocks I'm going shouldered.

The more I think about it in context of this thread, the barrel nut system does make more sense for the budget oriented SS Evo.

I raised the point because I've never see it mentioned with regards to barrel nut prefits.

Why do good smiths bother with timing to 12?
If it actually matters then why is it completely disregarded for nut barrels?

Barrel bore curvature/run-out is real and of coarse varies. Below is a pretty extreme example (.075) shown by Short Action Customs

Harmonics and barrel whip are also a well established fact.
Change your settings on youtube to watch the video below @ .25 speed. Notice the whip is dam near vertical 6-12 o'clock.

Here comes the Question & assumption. What dictates the direction of the barrel whip?? If it's dictated by the ecentricity of the bore @ muzzle (Big assumption & very pluasible) then timing to 12:00 would cause the vertical whip. It's also very possible that the direction of whip is dictated by the barrel lug extension transferring harmonics into stock @ 6:00 o'clock??? Cant find any data on this.

If the barrel in the video above was whipping 2-8 then load/bullet weight changes would cause both lateral & vertical poi shift as appose to just vertical. That was my earlier point and something I haven't really seen discussed as a benefit or reason for timing to 12.
1. Just because it's measurable and proven doesn't mean it has an affect on target. Which hasn't been demonstrated.

3. I wish I had the video Burford Boone showed us at a Sniper Symposium of someone setting a dial indicator on the tip of a barrel and shooting a round through high speed photography. It showed the bullet exit the bore WAY before the barrel even started to move. Watching that slow motion video the best argument that can be made about barrel harmonics, which is clearly proven on target to have an effect, is visible barrel whip is only a telegraph showing what is still hidden to modern equipment to effect the bullet. All the barrel whip you're showing in your videos happens AFTER the bullet exits. One critical assumption on which your theory is based.
 
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FredIII

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No they dont
Sarcasm !! 😉 sorry you missed it.
By the nature of the gun drill they can’t. But the last little bit can be clocked up and gain some dope on top of the 45moa rail.
Probably the wrong place to mention Leupold suck and flat bill hats are the modern day dunce cap! LOL
 

reubenski

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Sarcasm !! 😉 sorry you missed it.
By the nature of the gun drill they can’t. But the last little bit can be clocked up and gain some dope on top of the 45moa rail.
Probably the wrong place to mention Leupold suck and flat bill hats are the modern day dunce cap! LOL
I missed it because you can't compose a sentence and...

"Probably the wrong place to mention Leupold suck and flat bill hats are the modern day dunce cap! LOL"

...you're fucking out there....

I don't wear flat brimmed hats and I hate Leupold scopes. I have no idea why you thought that statement was relevant. You are cryptic beyond being legible or relatable. Perhaps I didn't miss anything; perhaps you suck at written communication.

Go winky-emoji, smug-face someone else...
 

FredIII

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I missed it because you can't compose a sentence and...

"Probably the wrong place to mention Leupold suck and flat bill hats are the modern day dunce cap! LOL"

...you're fucking out there....

I don't wear flat brimmed hats and I hate Leupold scopes. I have no idea why you thought that statement was relevant. You are cryptic beyond being legible or relatable. Perhaps I didn't miss anything; perhaps you suck at written communication.

Go winky-emoji, smug-face someone else...
Oh! you poor thing. Gonna start the English professor role, because I was being sarcastic. Next time I will pm you so you don’t feel like you were left out.
And the Leupold and hat comment was directed at the entire thread as no one agrees and everyone thinks they know everything.😉😂😂😂😂
 

FredIII

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Reubenski! The three I have are not. I hear from a bird that the evo will take a Remington style prefit soon.
Stay tuned you can learn a lot if you choose. 😉😂😂😂😂😉😉
pS fuck off tinder foot! 😘
 
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FredIII

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No one likes your barrel nut idea.

No one understands wtf you're talking about

By keeping it up, no one thinks you're credible enough to respond to
You have responded more than enough to prove you care the most. “You” don’t like nuts which is impossible to believe as you obviously getting into a hissy like a chick over shit that most men would laugh at.
As to credit I’m lost at what you need to hear before you put your stamp of approval on ones man card, but I assure you that I have no fucks to give what you think! Hint
The idea of a prefit that is evo is dead because they are changing their design to take remage nut and the niche market will not exist. Rubenski would you like me to write that in crayon so you feel warm and fuzzy.
 

CaptNemo

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Can we consider the purse swinging concluded ?
You can tell that winter has started and folks are getting cooped up with the weather.
At least it looks like Mack Bros. is going to fix the pre-fit issue. I’m glad I waited thru the first production run to buy.
 
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Secant

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FredIII

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Crypto rubenski tinder foot.😉
61DDE13A-344F-4AB7-B93F-E7644936E63B.jpeg
Can we consider the purse swinging concluded ?
You can tell that winter has started and folks are getting cooped up with the weather.
At least it looks like Mack Bros. is going to fix the pre-fit issue. I’m glad I waited thru the first production run to buy.

Can’t wait for the LA,
a 28 nosler would fit perfect.
 

JeffLebowski

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Reubenski! The three I have are not. I hear from a bird that the evo will take a Remington style prefit soon.
Stay tuned you can learn a lot if you choose. 😉😂😂😂😂😉😉
pS fuck off tinder foot! 😘
No one understands what you are trying to say.
 

FredIII

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No one understands what you are trying to say.
Only got a couple calls and texts saying different, but sure!

OK, so the world of literals and drunks can follow along.
The Mack bros EVO ACTION did not take a Remington style prefit so there was possible a niche market. “ No one” ( ironically the two guys that use ski to finish there handles/NAME!! 😉) don’t understand. (Isn’t ski polish?). Anyway, Mack bros is apparently going to change the design shortly so they will take the Prefits that already exist in a flooded market.
There for the niche is gone.
The idea of the nut was what MACK BROTHERS suggested to my smith.
I ask what caliber and ect guys would like in a nut design! Nothing about prefits shoulder barrels.
The code/cryptic was to finish ruffing the feathers of the poor guys that felt they need to pour there hearts into a shoulder fit idea which I didn’t ask for a opinion on. Sorry if it’s confused you I was definitely doing it to be an ass.
Currently I’m running three evos two SS and one TI they are great.
Jeff hope this makes sense.
PS currently having this TI done for my FIL ( father in law) for Christmas A6CCCAB7-6954-42D9-BE98-46D92BEAA3C3.jpeg35B769D8-F2BC-4FB0-9D06-26D9AF607FC6.jpeg
Needless to say the EVO is a great action at a price point that makes Truing Remington 700’s a thing of the past.
 
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FredIII

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obviously you didn’t get it as you insisted shoulder fit first and keep going with something I didn’t ask or give a fuck about.
The evo is going to take the prefits that currently it will not because Mack bros is changing there design.
The prefits I was proposing will not be needed. ( it was/is different than the list of barrel you have. But will not be in the future.
SKI it up grams! you quoted free weight as a reason to go with out the nut.
the prefit crowd is prsING 20# rifles hardly seems weight is a concern.

PS the flatbilled hat arrow that pierced Rubinsky‘s labia was intended for you.
 
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b6graham

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    yes free weight with a shouldered barrel. means i need to add less weights to a rifle to get be the weight and balance
     
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    FredIII

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    yes free weight with a shouldered barrel. means i need to add less weights to a rifle to get be the weight and balance

    FOR PRS? Oh my you must have a sponsor. I’m actually starting to feel sorry for you. It’s obvious you are a avid shooter.
    you assume because I don’t have 3000 posts I’m new. That’s fuckn funny as fuck. Go press your hat bill.
     
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    FredIII

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    You can get weight up front in a ton of ways the nut we were talking about was going to slip fit over a 1.225 to 1.1.190 and just ride enough threads to head space. With enough of a thin shroud to cover and look correct. It was a design in progress because it was going to be a little different. Glad you bought some stuff you like and learned everything there is to know.
     

    FredIII

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    Free weight. When Balance matters and you’re a well tuned competitorB9B483EA-6846-4E3E-BB47-A8B6C51C797B.jpegIts impossible to make this shit up.
    FREE WEIGHT. 🤣🤣🤣
    maybe start with ski and end with ski.
     

    MShort

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    I know Frediii personally and have my evo’s after handling his. He literally owned 2 of the first release to the public.

    Frediii can’t type for shit but does know more then most about the EVO as he has 4-5 currently and has sold atleast 2 past builds on them.

    He also has some personal friends in high places within the shooting industry that he was working with for several months to get the prefit thing going and it seemed that barrel nuts were the easiest answer from many sources. With the new changes Mack announced to their actions making shouldered prefits should now be a viable option.

    Like Fredii or not his resume and experience is this that most would love to have the same smokes 95% of those of the majority of naysayers guessing here yet he isn’t guessing when it comes to Evo actions.... 🙄
     
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    FredIII

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    but dude we now have these barrel nut things that are totally gonna revolutionize barrels
    It’s all about the balance. Free weight and such!
    PS like I said flat billed hats.
    kinda funny that you talk shit and don’t own one. Have you handled an evo?
    Mack bros is making an amazing product. I’m certain I’ve already moved more along than the free weight team has touched.
     

    FredIII

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    WTF does any of this name calling and dick measuring have to do with this thread? I’m all about the entertainment but take it to the Pit and let’s discuss the merits of the EVO if y’all don’t mind...
    Personally I’m really happy with the ones I have they feed very smoothly.
    The trigger hanger needs a tiny tweak that is pretty simple and a guy should lock tight the bolt knob so it stays tight. But past that they are nuts solid! Pun intended.
     

    FredIII

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    What started out as a pretty good thread just turned into a shit show...
    My apologies as you are a quality cat and I did not intended to disrespect you in anyway.
    It’s just not in my DNA back down from a good debate especially with the ski’ or there chimp.
     
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    b6graham

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    It’s all about the balance. Free weight and such!
    PS like I said flat billed hats.
    kinda funny that you talk shit and don’t own one. Have you handled an evo?
    Mack bros is making an amazing product. I’m certain I’ve already moved more along than the free weight team has touched.
    not talking shit on the actions. i've handled them. no complaints.

    it's more talking shit on your lack of writing skills and poor thoughts on shouldered barrels
     

    FredIII

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    not talking shit on the actions. i've handled them. no complaints.

    it's more talking shit on your lack of writing skills and poor thoughts on shouldered barrels
    What did you think of the recoil lug I love the way they keep them straight.
    Admittedly, I suck at the written word. But it’s clear I was talking about a nut design you obviously like shoulder barrels.
    It’s also clear you felt you could bow up show how smart you are on the subject while teaching a newB just how cool you are. LMFAO, Congratulations you have made it to the top! only an absolute expert would talk about getting a 20#, tripod mounted rifle to balance perfectly and the ounces that matter.
    Needless to say the ideas dead.

    I will have three more in route to decide what to build,
    thing about a 6.5x47 a 6 GT and a 28 Nosler.
     

    RemCustom6

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    28 Nosler will not run on a Mack Evo..... the Evo is a short action.
     

    wadebrown

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    I will happily buy one EVO action, for what you paid for it, from anyone who is not happy with the prefit situation.
     

    JeffLebowski

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    My apologies as you are a quality cat and I did not intended to disrespect you in anyway.
    It’s just not in my DNA back down from a good debate especially with the ski’ or there chimp.

    Oh, for fuck’s sake. I’m not debating your gibberish. The amount of people in this thread saying “we don’t understand what the fuck you’re saying” is called “a clue”. Thanks for for fucking up a good thread.
     

    FredIII

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    Oh, for fuck’s sake. I’m not debating your gibberish. The amount of people in this thread saying “we don’t understand what the fuck you’re saying” is called “a clue”. Thanks for for fucking up a good thread.

    What part do you not understand.
    I can try to translate for you.CD05F9D9-2985-4171-8CAB-9A62E9329743.jpeg
     
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    FredIII

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    TI is a 6.5 saum. Should be here Friday. More drivel! All while the wish they could team throws a tizzy because they are on the out side looking in.
     
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    FredIII

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    I don’t come to the Hide to read illiterate drivel that that offsets good, technical threads. Click.
    Seems if you really truly believe that you would have just read as I’m not seeing any contributions about the evo from you just some bullying and posturing. Oh and some ass kissy kissy where you think it benefited you. At least I’m able to speak first hand and account for two seasons of killing with a TI evo.525A5923-5234-4B15-B7A8-9FB9366F74AF.jpeg
     
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    CaptNemo

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    Seems if you really truly believe that you would have just read as I’m not seeing any contributions about the evo from you just some bullying and posturing. Oh and some ass kissy kissy where you think it benefited you. At least I’m able to speak first hand and account for two seasons of killing with a TI evo.View attachment 7501145

    Nice Muley & Speed Goat !!
     
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    JeffLebowski

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    Seems if you really truly believe that you would have just read as I’m not seeing any contributions about the evo from you just some bullying and posturing. Oh and some ass kissy kissy where you think it benefited you. At least I’m able to speak first hand and account for two seasons of killing with a TI evo.View attachment 7501145

    Damnit, I’ve never shot a mule deer before, you got me there.C7D597EA-1FA3-49FF-971F-470E21AA051C.jpeg