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Author Topic: 223 Reamer Freebore  (Read 1147 times)

Offline cjmill87

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223 Reamer Freebore
« on: 01:54 PM, 02/19/13 »
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  • I recently spoke to Dave at PTG and he recommended his 223 Rem Match reamer with a .123 freebore for 80 grain and higher loads.  I am planning on shooting the Berger 80.5s up to 600 yards.  My question is, does this freebore seem too long?  I have gone through posts and not seen this number before.  Any help would be appreciated.
    Chris Miller
    NRA Life Member


    Offline bigedp51

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    223 Reamer Freebore
    « Reply #1 on: 05:10 PM, 02/19/13 »
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  • I think he got his 224 Weatherby Magnum free bore figures mixed in with his .223/5.56 figures or else you need new batteries in your phone and hearing aids.



    HOLLIGER ON .223/5.56 CHAMBERS
    http://www.radomski.us/njhp/cart_tech.htm

    Offline Dave L Kiff

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    223 Reamer Freebore
    « Reply #2 on: 07:03 PM, 02/19/13 »
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  • The free-bore for a .080 grain is anywhere from pushed way in the case at .050 to as long as a person would like to seat them out . I like the length Bill Wylde has on his print .077 . I use .077 to .090 on some reamers . I have ground reamers with .123 free bore ,this is usually for folks that are loading 90 grain and 80 grain, the world record or near world record  shot in New Zealand by  Canadian shooter Bob Pitcairn had close to a  .123 free bore . I cant say exactly because he did not want me to let the cat out of the bag. I have ground free bores for the 90 grain way  out to .190 and beyond  The very best way to get the correct free bore is to always send in a dummy round . That way there is no doubt and is what the customer wants.  that   


    Offline rcw3

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    223 Reamer Freebore
    « Reply #3 on: 08:42 PM, 02/19/13 »
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  • I have one with a .120" free bore and a 1˚15" throat angle (mild throat angle) and a max case of 1.760" and it works very well with the Berger 80.5 and 82 gr bullets.  That long free bore is more for a bolt gun set up where you are trying to load the bullets out so that when they hit the lands, the junction of the boat tail and bearing surface of the bullets are just ahead of the neck/shoulder junction of the case.  For an AR-15, where you will be magazine feeding bullets and need to stay within 2.260" OAL, that's a bit long.  The chart above is all generally AR-15 type reamers.

    Robert Whitley

    Offline tripleduce

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    223 Reamer Freebore
    « Reply #4 on: 10:10 PM, 02/19/13 »
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  • Does anyone know the the freebore of a Savage model 10 .223? I can't get any where near the lands with anything less than the 69gr Sierra MK and have more than .06 of the bullet in the case neck. It must have a lot of freebore. My AR loads with 60gr at 2.260 mag length have a jump of .090.

    Ben

    Offline bigedp51

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    223 Reamer Freebore
    « Reply #5 on: 11:04 PM, 02/19/13 »
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  • If you go to http://www.savageshooters.com/forum.php and ask Mrfurious he will tell you everything you need to know on the subject.  ::)


    Offline Exocet

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    223 Reamer Freebore
    « Reply #6 on: 09:42 AM, 02/20/13 »
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  • I have a PTG 223 reamer with an .040 freebore that is set up for 55-69 grain bullets. 

    I'd think that .123 freebore is way too much, even for an 80 grainer.

    Offline TrxR

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    223 Reamer Freebore
    « Reply #7 on: 10:47 AM, 02/20/13 »
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  • I recently read an article from a .223 shooter that recommended .164 for 90gr Bergers. So I am interested as well.

    Thanks

    Offline bigedp51

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    223 Reamer Freebore
    « Reply #8 on: 06:34 PM, 02/20/13 »
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  • Does anyone know the the freebore of a Savage model 10 .223? I can't get any where near the lands with anything less than the 69gr Sierra MK and have more than .06 of the bullet in the case neck. It must have a lot of freebore. My AR loads with 60gr at 2.260 mag length have a jump of .090.

    Ben

    By bumpng a new case in a resizing die enough to just hold the bullet and chambering in your Savage and AR you should find that the majority of Savage/Stevens rifles have more freebore than your AR15s do.

    "BUT" Savage also makes .223 rifles with 1 in 14, 1 in 10, 1 in 9 and 1 in 7 twist. The 1 in 14 twist might be short throated and have pressure problems with military M885 ammunition.

    Offline Laurie

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    223 Reamer Freebore
    « Reply #9 on: 05:29 PM, 02/21/13 »
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  • + 1 on Robert Whitley's (as always) excellent advice.

    If you're shooting a single-shot F/TR type bolt-gun, go with Dave Kiff's suggestion. It'll give you a near optimal bullet seating position with 80s and the 80.5gn Berger Fullbore.

    I've run 223s at MUCH longer freebore for 90s and they'll still handle the 80s seated shallow in the neck, but you only want to be up in that 0.190 + range if you're setting out to shoot the 90s and little or nothing else.

    My next 223 barrel will be chambered with the reamer that Dave Kiff recommends.


     

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