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Thread: Care And Feeding Of A GAP 6.5 SAUM.....

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    Care And Feeding Of A GAP 6.5 SAUM.....



    Starting with Remington 7MM SAUM brass, You'll need:
    Redding 7MM Saum Competiton dies(Type "S" match)
    .295 and .291 bushings
    .264 Expander mandrel
    Feeler gauge
    Neck turning tool
    Neck trimmer
    Caliper
    Deburring tool
    Priming tool
    NECO case neck lube kit

    Use the .295 bushing and run the brass through, necking down. I lube the necks on new brass and the entire case if it's once fired 7 SAUM brass.



    The next step is to run the brass through your expander mandrel, with a .264 mandrel to ready it for turning....




    Set you neck turning tool at 15 thousandts with a feeler gauge, and turn the necks all the way to the neck/shoulder junction. Use of the moly coated shot to slick up the inside of the necks will really help the process and keep the brass from "galling".





    Like so....



    Trim to 2.025" and deburr inside and out....



    Prime, charge and seat bullets per usual.

    After the initial firing I use the .291 bushing in the sizing process.


    Runout has been stellar on the 500 rounds I've processed using this method.



    It's been worth every bit of effort.
    The thing to do is try. Failure is of no importance; Giving up however is another matter.
    NRA Life Member (1992) B&C Club Life Member (2006) http://montanagunslings.com/


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    After working up loads and testing different bullets with this rifle, it's been easy to say it's the funnest and deadliest rifle at any range I've ever shot.....I can't wait for fall!
    The thing to do is try. Failure is of no importance; Giving up however is another matter.
    NRA Life Member (1992) B&C Club Life Member (2006) http://montanagunslings.com/


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    Great write up / turtorial. As usual, thanks for sharing Pat!
    Mill Creek Rifle Club DeSoto, KS

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    Great information. Thanks Pat!

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    Stellar write up....thanks!

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    Nice write up Pat. You guys are killing me with the 6.5 saum threads. I'm going to have to start planning and aquiring parts for my all around hunting rifle.
    "Procrastination and Masturbation, they both might feel good but in the end you are just effing yourself." -Barney88PDC

    "Life is tough, but its tougher if you're stupid." -John Wayne

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    Excellent tutorial. Thanks for all the info. After my change-my-mind-57-times-like-a-little-girl antics with a current 338LM build I'm giving Ken a short break before starting this build! But I've already started collecting components - can't wait.
    Those who are merciful to the cruel, are cruel to the merciful. - Talmud

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    What barrel length, twist sir? Also what velocity are you observing with the 130's?

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    Thanks for sharing! This is looking like it might be my next cartridge.
    win.308stealth likes this.
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    Pat, I was curious, have you tried the Lapua 136's in this rig?

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    That was a great write up with photos!
    NRA/SCI LIFE MEMBER

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    Great writeup. Tagging for future reference. After I move out of the NE, I'm going to get a WSM bolt for my 591/R and a 6.5 blank and have GAP chamber me one of these. This just has too much potential to pass up.

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    Hey Pat awesome rifle and great write up. This caliber really intrigues me. Looking forward to hearing more about it.

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    Tag. Great looking reloading setup and rifle!


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    Pat,
    What kind of velocities are you running? I've looked at the 6.5 & 7 SAUM several times over the last few years.

    Thanks,
    Deano

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    Thanks for all the indepth info pat. I'm saving this one for my next build.

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    Great post, thank you.

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    Pat, thank you for the tutorial and info.

    Please, PLEASE stop posting all this 6.5 SAUM stuff. You, George Gardner and Sendero Man are killing me. My rifle-lust is full bore since you guys started showing off. :grin:

    I'd be interested to hear what the new 136 Lapua will do in this beauty when you get some more. Planning on shooting anything other than yotes with them, or sticking with the VLD's?
    WWTJD?

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    Great thread Pat ! Good info for all interested.
    Democracy must be something more than 2 wolves and a sheep voting on what to have for dinner.


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    Quote Originally Posted by xdeano View Post
    Pat,
    What kind of velocities are you running? I've looked at the 6.5 & 7 SAUM several times over the last few years.

    Thanks,
    Deano
    I'm getting 3250fps with the 130's. I have eight firings on one box of 50 brass with good tight tight primer pockets.
    The thing to do is try. Failure is of no importance; Giving up however is another matter.
    NRA Life Member (1992) B&C Club Life Member (2006) http://montanagunslings.com/


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    Quote Originally Posted by MLC View Post
    What barrel length, twist sir? Also what velocity are you observing with the 130's?
    The barrel is a #3 Bartlein 5R, 1-8.7", 24".

    Waitng for some 136gr scenars to show up.
    The thing to do is try. Failure is of no importance; Giving up however is another matter.
    NRA Life Member (1992) B&C Club Life Member (2006) http://montanagunslings.com/


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    MLC
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    That is some badass velocity for that barrel length.

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    I have an Identical rig to Pat's and am having similar results.

    I too am hoping Fall comes soon !! Fall bear season in 2 months .... GRIN
    Democracy must be something more than 2 wolves and a sheep voting on what to have for dinner.


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    I've put a shade over 500 rounds through mine so far.....

    Looking forward to the 6.5 SAUM antelope safari in Wyoming this coming October!
    The thing to do is try. Failure is of no importance; Giving up however is another matter.
    NRA Life Member (1992) B&C Club Life Member (2006) http://montanagunslings.com/


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    Thanks for posting Pat. I'm definitely intrigued.

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    I have Redding Comp 300 Saum dies, will these work if I change out the seating plug and the bushing for the 6.5 SAUM?

    I already have the barrel and plenty of brass and bullets.
    Some of My Rigs:
    Stiller Tac30 260 19" Bartlein Barrel w/ Ross Brake, Manners T5A, Jewell Trigger. IOR 6-24x50
    Stiller Pred 300Saum Oby Barrel and 6.5Saum Bartlien 8.7tw GAP, Manners T4A, Timney, NF BR 8-32x56 NPR2
    Being Built: LongRifle 700 204Ruger Lilja 12tw, 5r Takeoff Stock, Timney, Sightron 6-24x50 LRMOA

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    Very cool indeed, that is one potent and deadly little rifle, thanks for posting Pat!

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    Quote Originally Posted by RugerSlinger View Post
    I have Redding Comp 300 Saum dies, will these work if I change out the seating plug and the bushing for the 6.5 SAUM?

    I already have the barrel and plenty of brass and bullets.
    Yes, they should work just fine. FWIW, .300 SAUM brass is a tad shorter than 7MM after you neck it down to 6.5.
    The thing to do is try. Failure is of no importance; Giving up however is another matter.
    NRA Life Member (1992) B&C Club Life Member (2006) http://montanagunslings.com/


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    Quote Originally Posted by psinclair View Post
    I've put a shade over 500 rounds through mine so far.....

    Looking forward to the 6.5 SAUM antelope safari in Wyoming this coming October!
    Hair over 200 down mine is all, but extremely happy with performance !

    The Speed Goat safari should be good, lots of rain, grass and good looking growth ! FUN times
    Democracy must be something more than 2 wolves and a sheep voting on what to have for dinner.


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    Greenest I've ever seen up here.....check out the grass. This was a few days ago and it's rained since then.
    The thing to do is try. Failure is of no importance; Giving up however is another matter.
    NRA Life Member (1992) B&C Club Life Member (2006) http://montanagunslings.com/


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    Quote Originally Posted by psinclair View Post
    Yes, they should work just fine. FWIW, .300 SAUM brass is a tad shorter than 7MM after you neck it down to 6.5.
    I assume that event hough it is shorter, that it still needs trimmed down to 2.025
    "I'm your Huckleberry"
    -J.H. Holliday

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    Same here... Very fortunate with the moisture ! The growth on the bucks and bulls is impressive !

    what bullet you narrowing down to ?
    Democracy must be something more than 2 wolves and a sheep voting on what to have for dinner.


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    great review and gun

    question,
    Use of the moly coated shot to slick up the inside of the necks will really help the process and keep the brass from "galling".
    can you tell me more about this... some thing you got at a store or made your self?
    thanks
    dave

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    Quote Originally Posted by slavage View Post
    great review and gun

    question,
    Use of the moly coated shot to slick up the inside of the necks will really help the process and keep the brass from "galling".
    can you tell me more about this... some thing you got at a store or made your self?
    thanks
    dave
    Dave

    Imperial makes a kit with a small tub of ceramic balls & a small tub of moly
    it looks just like the pic that Pat posted above
    here it is, but out of stock at Brownell's. you can check around for it
    Redding Imperial Convenience Pak | Brownells

    Joe
    "Those Who Would Trade Freedom For Security Will Get & Deserve Neither" Benjamin Franklin

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    Quote Originally Posted by Huckleberry75 View Post
    I assume that event hough it is shorter, that it still needs trimmed down to 2.025
    .300 SAUM actually finishes under 2.025". You won't need to trim it for a couple firings...
    The thing to do is try. Failure is of no importance; Giving up however is another matter.
    NRA Life Member (1992) B&C Club Life Member (2006) http://montanagunslings.com/


  36. #36
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    What is the COAL/Ogive length on this little rascal? With the understanding that every throat/rifle is different, is there an approximate length that seems to be re-occuring?

    Or, does anyone know what length Copper Creek loading theirs to? Thx.
    "I'm your Huckleberry"
    -J.H. Holliday

  37. #37
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    Close numbers for each ... depending on specific bullet,

    140's 61.5gr h1000 at 2.950"

    130's 63gr H1000 at 2.900"
    Democracy must be something more than 2 wolves and a sheep voting on what to have for dinner.


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    Pat (or any owners) Are you loading the 130/140 vlds to jump or jam? How much in or out I the lands shoots best?
    "Procrastination and Masturbation, they both might feel good but in the end you are just effing yourself." -Barney88PDC

    "Life is tough, but its tougher if you're stupid." -John Wayne

  39. #39
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    Great writeup, been hearing a ton about this cartridge. Can't wait to make a video on it later this summer!
    jonthomps likes this.
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    Student at the University of Missouri
    MIZ-ZOU

    Here's a sample of my promotional firearm video work with a GAP-10:
    http://www.youtube.com/watch?v=UxGmusWYATE&feature

  40. #40
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    Quote Originally Posted by tigerfan_9 View Post
    Pat (or any owners) Are you loading the 130/140 vlds to jump or jam? How much in or out I the lands shoots best?
    about 10 to 15 thou off. Not jamming.

    2.945 with 140 hybrid

    2.900 with 130 vld
    BusterB likes this.
    Democracy must be something more than 2 wolves and a sheep voting on what to have for dinner.


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  41. #41
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    Been away for a while...great post on how to do it the right way!

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    Skyking
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    I sure hope your not turning all those necks by hand.

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    I have a quick question, will a Redding Type S die for the 300 SAUM, given the proper bushings work for this caliber? Best regard Chris

    Disregard above, I have managed to get hold of a set, actually two sets of the correct dies and bushings.
    Last edited by Advokaten; 08-06-2013 at 02:39 AM.
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    Quote Originally Posted by Skyking View Post
    I sure hope your not turning all those necks by hand.
    Is that a painful thought for you?......how much time do you spend sitting in front of your television?
    The thing to do is try. Failure is of no importance; Giving up however is another matter.
    NRA Life Member (1992) B&C Club Life Member (2006) http://montanagunslings.com/


  45. #45
    Skyking
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    Quote Originally Posted by psinclair View Post
    Is that a painful thought for you?......how much time do you spend sitting in front of your television?
    Yes! I like to work smarter, not harder I turn the necks on my brass, but I have a cordless drill shell holder that makes thing go a lot faster.

    Getting my parts put together for a the 6.5 saum. Thanks for all the info.

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    Guys, all the #'s Pat and Scott have shared here are spot on, As of todays date (8-6-13) any rifle chambered in GAP 6.5 4S SAUM will have a .028 shorter throat. Gives a longer window of chasing lands with the 140 hybrids and JLK bullets. Does not affect anything else bullets performance wise. I am keeping a couple reamers with the older freebore so on a rebarrel/rechamber guys can have a choice to stay with what they had or switch.
    George Gardner, G.A. Precision
    http://www.gaprecision.net


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    Quote Originally Posted by A10XRIFLE View Post
    Guys, all the #'s Pat and Scott have shared here are spot on, As of todays date (8-6-13) any rifle chambered in GAP 6.5 4S SAUM will have a .028 shorter throat. Gives a longer window of chasing lands with the 140 hybrids and JLK bullets. Does not affect anything else bullets performance wise. I am keeping a couple reamers with the older freebore so on a rebarrel/rechamber guys can have a choice to stay with what they had or switch.
    George what about the diffrence with going with a no turn neck reamer over turning the necks down?

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    Anyone have a line on brass? Say 100 or so.
    Montani simper liberi

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    Tag for future reference
    BLUEJAZZ

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    Great info
    George Gardner, G.A. Precision
    http://www.gaprecision.net


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