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    ejection/extraction trouble shooting: adjustable gas blocks and powder burn rates

    i'm having issues with ejection/extraction on the new ar-10 243-win, description: PSA 243-win 22" SS gasblock is 10" from muzzle. adjusted to full open. factory ammo is ejecting at 2:00 with no marks on the brass, handloads (nosler 90g spr, H-4350 42.0gr, cci200 primers, winchester brass) are...
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    ar-10 accuracy, what is to be expected from a factory upper?

    just bought my first at-10 and was wondering if i could expect anywhere close to the same accuracy from this gas gun as i get from a factory bolt gun of like caliber. i have been shooting a savage 243win for several years now. just sold it and bought a new ar-10 in 243win, havent had time...
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