Recent content by R100RS

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    300 Wthby load data issue.

    I have and use the Hornady AOL gauge as part of my reloading. Have yet to find a bullet that touched the lands and will still fit in my Mark V mag and/or will have .308 of the bullet in the neck. I get useful information from all my none Wby cartridges, for the 300 there is no way touch the...
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    300 Wthby load data issue.

    Hi, I too have a 300 WBY have been loading for it for 35 yrs. For most of it I have just been neck sizing (Hornady 30 cal neck die) and never had a problem. In the last few years I have been reading more and more. My most recent purchase was a belted mag collet die (Larry Willis) Turns out you...
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    Just how much freebore does a Mark V have?

    Long free bore was all about getting safe velocity back in the 50's. Less free bore would have equaled less velocity due to pressure spikes. Also in comparison to what we know today Roy was well ahead of his time with respect to high velocity hard hitting cartridges. I have been shooting big...
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    Just how much freebore does a Mark V have?

    Hi, I also have a 300WBY (made in Japan) when I do load development I either start a 3.700 max length that fits in magazine or whatever loading manual suggests. Once I find a promising load I retest the load at different AOL's using .030 differences between 3.560 and 3.700 to see if anything is...
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    What is causing my flyer.

    I think I will try some IMR7828 if I can find some. I also shoot single feed 3 or 4 shot groups with complete cool down between groups. Was out his morning with much the same results, nothing I would write home about.
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    What is causing my flyer.

    Hi WildBill, I just got a 300 WBY re-barreledwith brake and I am having the exact same problems you are having. 2 touching or almost touching and a flyer. I have tried 165 Nos bonded, 212 eldx's 178eldx's and 180 Nos pp partitions. I got the 180 partitions to shoot ok but only at a aol of 3.600...
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