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Anyone own a 7mm 300 Win Mag?

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  #211  
Unread 03-06-2012, 02:34 PM
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Re: Anyone own a 7mm 300 Win Mag?

Are you guys using a 300 Win gauge to headspace the 7mm-300?
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  •   #212  
    Unread 03-06-2012, 03:03 PM
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    Re: Anyone own a 7mm 300 Win Mag?

    Quote:
    Originally Posted by brentc View Post
    Are you guys using a 300 Win gauge to headspace the 7mm-300?
    I just tossed a bunch of WW and RP brass we shot in a box and took it to storage. I could send one of those but it will be a few days before I get to town when the PO is open.

    I am not sure about the headspace gauge I will ask the smith that threads and chambers for me..

    Jeff
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      #213  
    Unread 03-06-2012, 04:28 PM
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    Re: Anyone own a 7mm 300 Win Mag?

    Unless you order a head space gauge specifically to head space off of the shoulder all belted magnums with a .532" head size use the same head space gauges which head spaces off of the belt.

    I think I have some PMC cases that aren't loaded from my old 7-300wm.
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      #214  
    Unread 05-26-2012, 09:13 AM
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    Re: Anyone own a 7mm 300 Win Mag?

    Hey guy's. This is my first post on this site so please bear with me. Been reading
    About the 7mm/300 win mag an made up my mind to build one. Gonna be using
    a 700 rem PSS(I've been told that it is a cilvian model of the M24 sniper rifle.
    Just gonna get my smith to ream the barrel that's on it for now for a starting
    point. Gonna be shooting 180 Bergers or A-Max, probably H-1000. Been reading
    the tread and have gotten a lot of good info!Thanks to all! Any new info will be welcomed. Been shooting Rem model 700, 26" barrel, 168 Berger, 71grH-1000.
    Sound pretty warm but very acurrute(dime size groups at 100 yards) sometimes
    smaller depending on me! Thanks again.
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      #215  
    Unread 05-26-2012, 12:05 PM
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    Re: Anyone own a 7mm 300 Win Mag?

    Just finished another one off a Weatherby action with a 28" Hart.




    The first shots from it while braking in the barrel and working up the charge weight. These were shot after cleaning the barrel each round. 71 through 75 gr all 5 tore one hole. I think that is a node... I backed off to 73 as 74 and 75 were showing slight pressure in RWS brass.



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      #216  
    Unread 05-26-2012, 12:28 PM
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    Re: Anyone own a 7mm 300 Win Mag?

    Thanks Broz for the info. Didn't mention awhile ago that the load I posted
    is in a regular Rem model 700pss. 71grn H1000,CCI 250 primer, win brass,
    26in barrel. I have two model 700 rem mags, just that one is gonna be a
    7/300.
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      #217  
    Unread 05-26-2012, 01:01 PM
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    Re: Anyone own a 7mm 300 Win Mag?

    I should say above target was with 180 VLD's too.

    Jeff
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