Is my new rifles crown damaged?

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  • jason867

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    Just picked up a new Remington 700 5-R .308 ss 24", acusport exclusive model 85201.

    While I did inspect it at the store, I failed to notice how the muzzle looks like crap.

    What do you guys think? I can live with the looks, as I plan on using a muzzle brake eventually.
    What I'm mainly concerned with is whether the crown is affected, which could effect it's accuracy (I plan on bench resting this thing at 1k yards eventually).

    I think the crown looks fine, but Im not sure I could tell a damaged crown or not.

    I haven't fired it yet, or even mounted a scope.

    What are your opinions?

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    Last edited:

    Bsj425

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    Dec 19, 2014
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    Looks ok to me, just looks like there may have been some tool chatter. Shouldn't effect accuracy tho as it looks to be on the outside part of the crown.
     

    jason867

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    That's what I was leaning towards, but thought I'd get some opinions from those more experienced than I.

    Now that I'm on the PC, I changed the muzzle pics in my original post so that they are higher resolution and larger to see.
     

    phylodog

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    Doesn't look great but I'd shoot it before getting concerned. If it won't shoot well I'd take it to someone to have the crown touched up, shouldn't cost much.
     

    NyleRN

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    In your 2nd pic it looks like the bevel of the crown at the 2 o'clock groove is rolled is a little. It may come out of that shooting a few rounds. I'd check accuracy like PD said above before getting too worried.
     

    jason867

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    If it does need re-crowned, can a gunsmith do that without removing the barrel from the action?

    Who would you guys recommend in east central Indiana to do that work?
     

    55fairlane

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    I have to agree, shoot it a little and then decide if the crown needs rework, looks to me like dull tooling at the factory ,but it may just be cosmetic, and not affect a thing....shoot it,look at the targets.....
     

    Alpo

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    Yes, it looks terrible and yes, a gunsmith can improve its look with handtools (no need to remove the barrel, although a lathe-based fix is preferable). But, as others have said, shoot it first.
     

    tradertator

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    I'm jealous, and was considering the purchase of that exact rifle. Crown looks a little crappy, but I doubt it will effect accuracy. If it does, I'd call Remington.
     

    ChristianPatriot

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    Feb 11, 2013
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    The crown is the flat surface at the end of the barrel and the angled cut that goes back into the bore. There are hunter crowns and target crowns, and different degrees of the angle. They need to be perfectly perpendicular to the bore centerline to insure that the bullet leaves the barrel without any interference.
     

    Leo

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    An old way of looking for burrs and deformation on a muzzle crown is to get a round head 5/16 BRASS screw (1/4" for smallbore) and chuck it in a slow speed drill. Liberally coat the round head in an abrasive, like valve lapping compound. With firm downward pressure (that keeps everything centered) slowly spin the drill motor for maybe 45 seconds. By the polish marks, you will be able to see any burrs, lips or grooves in the no gloss finish left by the abrasive compound. It will not cause any damage as no discernable material is removed.

    On fancy grade firearms with fine grade bluing this method makes sure you have a problem before you use tooling that will require the barrel to be reblued.

    This will not really correct anything, I am sure that you would wear out a dozen screw heads and burn out your drill before you would get a good crown on the barrel. Be sure to clean your barrel completely after you are done.
     

    jason867

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    Got the scope mounted, and a cheap bipod.


    I bedded the rail using JB weld, as it didn't fit perfectly, and used imperial sizing die wax as a release agent. The rail was stuck good, but came off with enough persuasion.


    Loc-tited the rail screws and torqued them according to recommendations.


    Used precision tactical matched low rings. I checked their alignment using the bars from my Wheeler kit, and found they were aligned 99.9% perfectly, so I didn't bother lapping the rings.


    Torqued and loc-tited the scope ring mounts and caps according to recommendations. Used a bubble level to level the scope to the gun.


    20170406_163549.jpg



    I threw some quick loads together using 168gr SMK and Reloader 15, Varget, and IMR 4064.
    Shoots pretty good so far! Easily sub-moa. Groups below are 3-5 shots each at 100 yards.
    I'm thinking some load development and refinement, and practice for myself, will shrink these groups and make them more consistent. I'm hoping for consistent 1/2moa or better.



    Varget reloads:
    2nd_hand_Varget_Reloads.jpg



    Reloader 15
    2nd_hand_RL15_reloads.jpg



    IMR 4064
    2nd_hand_IMR_4064_reloads.jpg



    I used some reloaded M80 ball to get the scope dialed in at 100 yards, and even that shot better than I expected.
    This is the first time where I feel like i'm the variable holding the gun back from accurate shooting, lol.
     
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