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Thread: Seriously underrated 6.5x47 Lapua

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  1. #1
    Member Puffin's Avatar
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    Quote Originally Posted by Wingman View Post
    ...and chambered it with one of Dave Mansons match reamers...
    Wingman, please tell me a bit about your reamer: your freebore length and neck diameter (clearance) choice and perhaps your thinking that led to these dimensions? I think I would be right in saying that these are likely to be the two variables with everything else staying much the same at standard CIP - unless you also requested the leade angle be tweaked?
    rossi.45 likes this.

  2. #2
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    Quote Originally Posted by Puffin View Post
    Wingman, please tell me a bit about your reamer: your freebore length and neck diameter (clearance) choice and perhaps your thinking that led to these dimensions? I think I would be right in saying that these are likely to be the two variables with everything else staying much the same at standard CIP - unless you also requested the leade angle be tweaked?
    Somehow I have lost my custom reamer for a Sako 75 action. I guess one of my relatives thought it was a drill bit. Keen to see the answer to this.
    Creeper likes this.

  3. #3
    Ex stick thrower madjon_'s Avatar
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    Quote Originally Posted by Tussock View Post
    Somehow I have lost my custom reamer for a Sako 75 action. I guess one of my relatives thought it was a drill bit. Keen to see the answer to this.
    Was @gimp original 6.5x47L done with this reamer?
    Real guns start with the number 3 or bigger and make two holes, one in and one out

  4. #4
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    Quote Originally Posted by madjon_ View Post
    Was @gimp original 6.5x47L done with this reamer?
    I don't recall. Have to ask him. I bought it from pacific tool and gauge. It was not actually expensive. I had it set up so I could seat to the lands in a Sako box magazine from memory. It was a while ago.
    Creeper likes this.

  5. #5
    Member Wingman's Avatar
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    Quote Originally Posted by Puffin View Post
    Wingman, please tell me a bit about your reamer: your freebore length and neck diameter (clearance) choice and perhaps your thinking that led to these dimensions? I think I would be right in saying that these are likely to be the two variables with everything else staying much the same at standard CIP - unless you also requested the leade angle be tweaked?
    The rifle is predominantly a hunting rifle so this school of thought was always foremost on the build specs. Tight neck reamers and long freebores with crazy lead angles for secant or hybrid ogive bullets would limit the range of suitable hunting bullets and adds possible mechanical complications in the field which I wanted to avoid.
    The reamer was ground to cut a .298" neck, my loaded non neck turned neck measures .290" and the free bore length set up for the 139gr Scenar at .235". This puts that bullet in 100% neck to bearing surface contact with 5 though jump and a 2.73" COAL.
    The lead angle is std CIP.
    The 130gr TMK is very much the same dimensions as the 139gr scenar with the same boat tail and ogive shape, other than the plastic tip they almost measure identical which has made for easy tuning of that load.
    I look forward to testing some other bullets but early signs show its really not that fussy to load for.
    winaa, Steelisreal and Tussock like this.

 

 

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