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    SCAR MK20S Limited Release

    Start lower in your charge weights, you need to consider port pressure or risk overgassing the system. None of my bolt loads worked well for my 20S for this reason and others. Glen Zediker goes into detail in his book and in the Midsouth Shooters Blog, he covers loading for gas guns...
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    Bushing fl reeding die

    This is normal for a FL bushing die, the portion of the case neck close to the shoulder does not get sized. Glen Zediker describes this in detail in his book and also in the Midsouth Shooters Supply blog, Reloading Corner. The link to the blog article...
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    SCAR MK20S Limited Release

    I've been working on load development for this rifle and from my experience, the available load date that's out there is better suited for bolt guns. Most of the published data from powder & bullet manufacturers does not mention a 20" barreled gas gun. My rifle in particular does very well...