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Thread: First attempt at reloading. Thoughts please.

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  1. #12
    Member
    Join Date
    Dec 2019
    Location
    Okawa Hawkes Bay
    Posts
    3,193
    Greetings again,
    Had a fossick in the Hodgdons data. In their pistol section they list data for the 7mm-08 with a 15 inch barrel. Their load for the 139 grain Interlock is the same 43.5 grains of AR2208 with a velocity of 2,610 fps at a pressure of 50,000 CUP. Over the years I have placed more weight on velocity as an indicator of pressure than powder charge. There is a long list of variables in components and rifles that effect the velocity that we get from a given load as well as the pressure that it develops. Munching the data together leads me to a velocity of around 2.600 fps with a 7mm-08 in a 15 inch barrel with the softer 139-140 grain projectiles. GRT seems to be the outlier in the data sets in this case. In your rifle and with your components 42.5 grains of AR2208 looks like a reasonable max.
    Regards Grandpamac.

 

 

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